Hitta ditt nästa jobb – och matcha med AI
Sök bland aktuella annonser från Platsbanken. Låt vår intelligenta matchning visa exakt hur väl din profil passar innan du söker.
Visar 16 av 90 lediga jobb för "Backend-utvecklare"
Rensa sökfilterSenior Java AWS Engineer
We are looking for a Senior Java/AWS Engineer to join a small, autonomous engineering team working on large-scale, distributed systems. Only candidates who already have a valid work permit/right to work in Sweden should apply. If you do not currently have a valid Swedish work permit/right to work in Sweden, please DO NOT apply. ALL REQUIREMENTS ARE MANDATORY Candidates are expected to meet all the key requirements and technical criteria listed below. Please review the complete job description carefully before applying. Location & Work Model Gothenberg, 100% On-site Swedish and English Required. Job Details Job Type: Contract basis (1 year) Joining: Immediate joiners only Work Permit: Valid work permit in Sweden is mandatory Opportunity: Long-term contract opportunity Key Requirements 5+ years of professional software engineering experience with strong backend expertise Strong hands-on experience with AWS services Deep knowledge of Java and JVM, including: JVM memory management, Garbage Collection (GC), Concurrency, Performance tuning, Virtual threads Strong experience building and scaling customer-facing web services Solid understanding of distributed systems and distributed data architectures Experience with Cassandra, Redis, Memcached, or similar technologies Experience building REST services using Netty or similar frameworks Hands-on experience with CI/CD, automated testing, and software delivery Strong communication skills and ability to work independently in a fast-changing environment Nice to Have Cryptography/security knowledge: PKCS, KMIP, X.509, AES, KDF, CA Exposure to ML systems/frameworks Experience with GitHub, Maven, Docker, Kubernetes, Spinnaker Experience with privacy-sensitive or security-critical systems Technology Stack Java | Cassandra | Redis | Netty | Docker | Kubernetes | GitHub | Maven | AWS Please feel free to share this opportunity with someone in your network who may be a strong fit. Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.
Tech Lead - Backend Delivery
As the Technical Lead for the Backend Delivery team at Embark, you will work in the shared tech organization and lead the technical execution of reliability and developer experience. Backend Delivery is a platform team that serves other shared tech functions by building self-serve infrastructure, tooling, and managing our shared multi-tenant clusters. Some examples of things we’re working on include CI/CD, observability, mesh networking, build pipelines, etc. Some of the technologies we use to make all of those are Go, Python, GCP, Bazel, Terraform, Kubernetes, Istio. You will mentor and guide engineers, collaborate closely with design and product, and make architectural decisions regarding the infrastructure and backend development platform. In your day to day you work as an amplifier for cross team communication & collaboration. Example of responsibilities: Leadership & Collaboration Managerial responsibilities (not limited to) hiring & onboarding of new employees and long-term career development. Serve the know-how & share best practices: coaching people to make the right decisions across dependencies and to raise concerns and needs. Collaborate with backend services teams, the game server infrastructure team and other users of the common development platform such as data analytics and anti-cheat to define, scope, and deliver new features and improvements. Planning and working for sustainability / scalability of team and throughput, including headcount planning and scoping. Example of responsibilities: Architecture & Development Support the design and evolution of robust, scalable systems within backend engineering teams in the organization (e.g. player-progression, matchmaking, etc…) Ensure high performance and reliability by improving monitoring of our fleets Foster best practices in code quality, automated testing, performance profiling, and release reliability. Lower cognitive load by building tools and automation to make development iterations simpler and faster. We would love if you have A creative and curious mind A solid and proven background from software engineering and architectural leadership with previous experience developing large scale systems. Experience from a high-paced engineering organization working with CI, scalability, and automation, etc. Experience in working with a diverse set of partners and helping them understand the trade-offs to different product and technical decisions. Learning, collaborative and sharing approach as well as motivation to take initiative and drive The ability to be a great team player with good communication skills Proven leadership qualities, including splendid recommendation stats from former team members Professional English communication skills. At Embark we offer competitive salaries, passionate colleagues to share knowledge with and much more, but most of all we invite you to take part of a journey into the unknown, to build creative, surprising and beautiful experiences together. Be yourself at Embark and make games while doing so. Please apply with confidence. We can’t wait to hear from you (in English)!
Backend Engineer - Anti-Cheat
The Anti-cheat team at Embark is responsible for upholding the integrity of our games, identifying instances of unfair play, and protecting the experience of our players. We have a versatile toolbox at our disposal, which we continuously evolve and refine, including client-side protections, third-party systems, machine-learning models. Being a core function supporting all of Embark games, we collaborate with many different stakeholders throughout the organisation, such as game teams, legal and community management. We are now looking for a well rounded Backend engineer with front-end experience to strengthen our operational capacity. As a member of our Anti-cheat team you will, among other things, be responsible for maintaining and developing the services that power Embark’s anti-cheat activities, and develop tools and visualizations within our internal web portals supporting both our own and other teams at Embark. You are likely curious to continuously learn new skills. You enjoy working autonomously and taking initiatives, while also collaborating within and across teams. You enjoy applying the full breadth of your skill set to help protect our players from unfair play and malicious actors. By being creative and experimental you aim to solve problems in a game-changing way. Example of responsibilities Operate, monitor and develop anti-cheat services critical to our live games Design and deploy internal services supporting the anti-cheat operation Work with internal users to design and develop web tools and visualizations We would love if you have A creative and curious mind Proficiency in Go Proficiency in Typescript Experience in developing and operating distributed systems Experience in developing intuitive, easy-to-use, graphical interfaces Experience working with Google Cloud Platform Professional English communication skills Experience and/or interest in games and anti-cheat will be considered a bonus! At Embark we offer competitive salaries, passionate colleagues to share knowledge with and much more, but most of all we invite you to take part of a journey into the unknown, to build creative, surprising and beautiful experiences together. We welcome game makers of all sex, class, colour, age, gender identity, education, religion, opinion, culture, nation of origin, language, sexual orientation, shape, size, and ability. Did we leave anyone out? Well, we welcome you, too! We think that the gaming industry is made better when everyone has a seat at the table. Be yourself at Embark and make games while doing so. Please apply with confidence. We can’t wait to hear from you (in English)!
Senior Backend Developer
Want to build the cloud platform that powers digital access for hotels around the world? Every day, hotels rely on secure digital access to manage guests, staff, and connected services. At ASSA ABLOY Global Solutions in Stockholm, our Hospitality R&D team develops the cloud-native platforms behind there experiences. We are looking for you, who wants to take ownership, work close to the product, and build solutions used by hospitality customers across the globe. This is an opportunity to make a real impact while working in a collaborative team that values innovation and continuous development. What you would do as our Backend Developer You would help design, build, and evolve the cloud-based services that power digital access, permissions, and identity management across our Vostio hospitality platform. Your work would span software development, cloud infrastructure, production operations, and continuous improvement, giving you the opportunity to contribute to a critical product area. You would join a small, high-impact team responsible for the services, APIs, and integrations that enable hotels to manage access rights and user identities securely. You would also: • Build cloud-native backend services — Design and develop Kotlin-based services that support digital access, permissions, and identity management. • Own core platform functionality — Deliver features that enable hotels to manage access rights, user permissions, and authentication capabilities from design through production. • Build APIs and integrations — Create and evolve APIs, integrations, and microservice-based capabilities that connect products, customers, and internal systems across the hospitality ecosystem.• Design cloud-native solutions on AWS — Build scalable and resilient services using AWS, automation, and modern CI/CD practices. • Take responsibility beyond coding — You would be involved in technical design discussions, production support, continuous improvement initiatives, and helping shape how the platform evolves over time. The skills and experience you need We are looking for someone with: • Experience building backend systems in Kotlin, Java, or Golang. • Hands-on experience designing, deploying and operating solutions in AWS. • Experience with microservice-based, distributed, or integration-heavy systems, including strong API design skills. • Knowledge of CI/CD pipelines and modern software engineering practices, combined with a pragmatic engineering mindset. • The ability to simplify complex technical problems, communicate clearly, and take ownership of outcomes. Nice to have: AWS services such as Cognito, ECS, SNS/SQS or CloudFormation; experience with SaaS platforms, or access management solutions. Why developers join and stay • Small team, meaningful impact. Every engineer contributes directly to product decisions, technical solutions, and delivery. • End-to-end ownership. You'll work on features from idea through production and see the impact of your work firsthand. • Modern technology stack. The role focuses on Kotlin, AWS, cloud-native services, microservices, and automation.• Product-focused development. Work closely with Product Owners and stakeholders to solve real customer challenges. • Stockholm-based team with global reach, the systems you build are used by hotels around the world every day. What we offer We're passionate about providing opportunities and benefits that support your development and long-term success. Here's what we have to offer: • Learning and career development opportunities, whether through online learning, technical training, or new challenges. • A competitive salary and benefits package. • Hybrid working and a collaborative engineering environment.• The opportunity to contribute to innovative products used by customers around the world. We review applications regularly, so don't wait We are building diverse, inclusive teams and encourage applications from everyone who can see themselves working with us. To make sure your personal data is safe, we don't review applications sent by email or post. If you have any questions about the role or the process, please contact Léa Rein, Senior Talent Acquisition Business Partner, at lea.rein@assaabloy.com. Depending on the risk profile for the role, a background screening may need to be performed. Final candidates may therefore be subject to a background screening. The performance of a background check is subject to consent and based on our Applicant Privacy Notice.
AI/ML Backend Developer Level 2 - På plats
AI/ML Backend Developer – Level 2 Stockholm - På plats The Company is an AI agency with the vision to become Sweden's leading player in the field. We help Swedish organizations unlock the full potential of AI — from strategy and advisory work to actually building and running production-grade AI solutions. We believe in meaningful technology: AI should create real business value, not just be technology for its own sake. Our consultants work on assignments with some of Sweden's most well-known companies — including ASSA ABLOY and Talent Venture Group — on everything from agentic AI solutions and RAG architecture to scalable data pipelines and cloud infrastructure. The Role We're growing and looking for more AI/ML-oriented backend developers to join our consultant team. As a Level 2 consultant, you'll take on client assignments with a good degree of independence — building backend services and APIs that power AI functionality — while still working alongside, and picking up patterns from, some of the industry's most experienced AI architects and tech leads. Examples of what you might work on: Building and maintaining production backend services in Python (e.g. FastAPI) Integrating LLMs, implementing RAG patterns, and contributing to agentic AI solutions Working independently in cloud environments (Azure, AWS, or GCP), including infrastructure-as-code Setting up and maintaining CI/CD pipelines and following DevOps practices Contributing to architecture discussions and technical decisions on client engagements Who We're Looking For You're a few years into your career as a developer and comfortable taking ownership of your own deliverables. You don't need to have led AI projects before — but you should already have some hands-on exposure to the field, whether professional or self-driven. We think you have: Around 3–5 years of experience in backend or software development, including production environments Solid skills in Python (or a comparable language such as Java, C#, or Node.js) Practical experience with REST APIs, databases, and cloud services Genuine, hands-on interest in AI/ML — for example, you may already have worked with LLM integrations, RAG, or ML pipelines, professionally or in your own projects A relevant degree in computer science/IT, or equivalent experience Good communication skills in both English and Swedish What We Offer As a consultant, you become part of a small, fast-moving team fully focused on generative AI. You get: Continued mentorship from senior AI architects and tech leads, plus room to start taking on more responsibility yourself A clear and transparent salary model — base salary plus commission on your billed hours A clear career path, from Level 2 all the way up to Partner Modern AI development tools as a natural part of your workday (e.g. Claude Code, Cursor, GitHub Copilot) Membership in a community that shares knowledge through internal workshops You will be employed directly by the company. You will receive information about which company the advertisement refers to when you are in contact with the recruiter. Bumbli Group is therefore not the employer but the recruitment agency. Welcome to submit your application! Bumbli Group is part of House of Recruitment — a personal, traditional and quality-driven recruitment agency in Gothenburg.
Were looking for Backend Developers in Gothenburg!
TECHLA is a Gothenburg-based consulting company working with modern product development across software, embedded systems, cloud and DevOps. We started TECHLA with a simple idea: to build the kind of consulting company we would want to work for ourselves. We want to build long-term relationships, work with great people and create an environment where both our consultants and our clients can thrive. We believe in transparency, trust and giving people the freedom and responsibility to grow. Our consultants should feel that they are part of something, have a real influence and are rewarded for the value they create. At TECHLA, technology matters – but people matter even more. We believe the best results come from skilled people who take ownership, work closely together and genuinely care about what they deliver. We are big enough to deliver, but small enough to care. We’re looking for experienced Backend Developers in Gothenburg who combine strong technical skills with ownership, curiosity and a genuine drive to move things forward. We’re open to both employment and freelance/subcontractor setups – so whether you’re looking to join TECHLA or take on your next assignment as an independent consultant, we’d love to hear from you. What you’ll be working with You’ll join a development team at one of our clients, working with modern cloud-based backend services and complex technical challenges. Depending on the role, the stack may include Java, Spring Boot, Python, AWS, Azure and Kubernetes. You’ll be part of a collaborative, DevOps-oriented team with responsbility for the full lifecycle of its services – from development and implementation to deployment, monitoring, operations and continuous improvement. Your work may include: Developing and maintaining backend services in Java, Spring Boot and/or Python Designing scalable cloud-native solutions on AWS or Azure Building REST APIs, microservices and distributed systems Working with Kubernetes and containerized applications CI/CD, automation, monitoring and logging Participating in code reviews, technical discussions and architectural decisions Skills & Qualifications We’re looking for someone with: At least 5 years of backend development experience Strong hands-on experience with Java Experience working with AWS and/or Azure Experience building customer-facing systems Fluent English communication skills BSc/MSc in Engineering, IT or a related field Good to have: Experience with AWS serverless services such as Lambda and DynamoDB Experience with CI/CD and/or DevOps practices Previous experience with connected systems, IoT, automotive or telecom The mindset we’re looking for For us, being a great engineer is about more than technical skills. We’re looking for people with a strong consulting mindset – people who understand that great consulting is about creating real value, taking ownership and being someone both the team and the client can rely on. You’re highly skilled at what you do, but you’re also a doer who cares about quality. You don’t wait for someone else to solve the problem. You take initiative, move things forward and care about delivering work you can genuinely be proud of. At the same time, you genuinely enjoy working with others. You communicate openly, share knowledge, contribute to a positive team dynamic and believe that the best results are created together. You take responsibility for the bigger picture, stay solution-oriented and aren’t afraid to go the extra mile when it makes a difference. At the same time, you’re humble, genuine and enjoy working with people who challenge and support each other. In short, we’re looking for engineers who want to go beyond – technically, professionally and as part of a team. If this sounds like the kind of environment where you’d thrive, we’d love to hear from you. Feel free to reach out to johanna.bornemyr@techla.se or submit your application, and we’ll be happy to tell you more about the opportunities.
Fullstack Developer
About Cyberway At Cyberway, we believe that technology can make everyday life simpler, smarter, and more sustainable — for businesses, organizations, and people. That’s why we create solutions that truly make a difference. We combine deep technical expertise with strategic insight, always aiming to transform complex digital challenges into clear, scalable, and future-proof results. We believe in more than just code — we believe in people. It’s the passion, skills, and collaboration of individuals that drive real change. Whether it’s system development, data analysis, UI/UX, infrastructure, or delivery models such as nearshore and team as a service, we build success through experience, innovation, and action — with the right people at the core. The Role We are now looking for an engineer who wants to join our journey. With us, you’ll have the opportunity to work with modern technologies, exciting clients, and projects that make a real impact. The role is diverse — sometimes you’ll work independently, sometimes in teams, always in close dialogue with both customers and colleagues. We believe you have a background that makes you confident in your skills, while also being curious to develop new ones. Most importantly, you want to contribute to building the Cyberway culture together with us. What We're Looking For 5+ years of professional software development experience, with a strong focus on full-stack web application development Strong hands-on experience with React, TypeScript, GraphQL and Node.js Experience designing and developing REST and GraphQL APIs with a pragmatic approach to architecture Cloud experience, with AWS, GCP or Azure environments Knowledge of database design and experience working with both relational and NoSQL databases, such as PostgreSQL and MongoDB Excellent communication skills in English and/or Swedish What We Offer Exciting and challenging assignments where you make a real difference A work environment built on transparency, trust, and openness We support you in building the career path that suits you best The opportunity to influence both your own development and Cyberway’s future A culture where innovation, people, and action go hand in hand Location For this role, we are looking for someone based in Skåne, as many of our clients and projects are located in the region.
Senior backend C# .Net developer
About Cyberway At Cyberway, we believe that technology can make everyday life simpler, smarter, and more sustainable — for businesses, organizations, and people. That’s why we create solutions that truly make a difference. We combine deep technical expertise with strategic insight, always aiming to transform complex digital challenges into clear, scalable, and future-proof results. We believe in more than just code — we believe in people. It’s the passion, skills, and collaboration of individuals that drive real change. Whether it’s system development, data analysis, UI/UX, infrastructure, or delivery models such as nearshore and team as a service, we build success through experience, innovation, and action — with the right people at the core. The Role We are now looking for an engineer who wants to join our journey. With us, you’ll have the opportunity to work with modern technologies, exciting clients, and projects that make a real impact. The role is diverse — sometimes you’ll work independently, sometimes in teams, always in close dialogue with both customers and colleagues. We believe you have a background that makes you confident in your skills, while also being curious to develop new ones. Most importantly, you want to contribute to building the Cyberway culture together with us. What We're Looking For 5+ years experience with .NET in building modern, high-throughput APIs. Strong focus on API-first development, with emphasis on clarity, performance, and long-term maintainability. Solid understanding of resilient and scalable distributed systems. Experience working with cloud-native architecture. Ability to design clean, modular code structures based on real-world business processes and rules. Tech stack Cloud: Microsoft Azure Architecture: Domain-Driven Design (DDD), Event-Driven Architecture (EDA), Event Sourcing Patterns: RESTful APIs, Event Publishing Monitoring: OpenTelemetry, structured logging, distributed tracing What We Offer Exciting and challenging assignments where you make a real difference A work environment built on transparency, trust, and openness We support you in building the career path that suits you best The opportunity to influence both your own development and Cyberway’s future A culture where innovation, people, and action go hand in hand Location For this role, we are looking for someone based in Skåne, as many of our clients and projects are located in the region.
Senior Backend Developer
About us Univrses is a Swedish technology company specialising in artificial intelligence and computer vision. Founded in 2015, we have spent more than a decade developing technology that turns visual data into actionable intelligence. Today, our work spans two complementary areas: automotive, and road and public infrastructure. In the latter, our 3DAI™ system uses cameras mounted on everyday vehicles to turn visual data into structured, geo-referenced data and imagery about road conditions and road assets. The system is deployed in 15+ countries and supports road authorities, contractors and infrastructure owners in building a more current and detailed view of their road networks. The role As a Senior Backend Developer, you will help design, build and scale the systems behind 3DAI™. The platform stores and processes large volumes of geospatial and time-series data generated as vehicles collect information across road networks. Your work will help ensure that these systems remain reliable, maintainable and ready to scale as 3DAI™ continues to evolve. You will work hands-on with Node.js, TypeScript and AWS, with substantial ownership from technical design through to production. Your role: Develop and scale backend services that support the storage, processing and visualisation of large volumes of geospatial and time-series data. Design efficient and maintainable solutions across APIs, database schemas, security, logging, monitoring and scaling. Own features end-to-end, translating high-level specifications into production-grade services. Design and work with distributed systems involving asynchronous processing, caching, queues and service-to-service communication. Use AI-assisted development and agentic workflows, including tools such as Cursor or Claude Code, to accelerate development, refactoring and automation while maintaining high engineering standards. Contribute to code quality through testing, technical discussions, knowledge sharing and modern software engineering practices. Who you are You are an experienced backend engineer who enjoys taking ownership of complex technical problems and turning high-level requirements into reliable, maintainable services. You are comfortable reasoning about systems end-to-end and care about the quality of what reaches production. You work well with others, share knowledge openly and value feedback. You are curious about new tools and engineering practices, including AI-assisted development, and know how to use them without compromising sound technical judgement or code quality. What you bring Required: 5+ years of backend development experience, or a proven track record of equivalent depth, building production-grade services with Node.js, TypeScript and AWS. A solid understanding of REST APIs and GraphQL. Strong hands-on experience with geospatial and time-series data, including specialised tools and databases such as PostGIS. Experience with serverless computing or Infrastructure as Code (IaC), using tools such as AWS CloudFormation, Docker or the Serverless Framework. Experience designing and reasoning about distributed systems, including asynchronous processing, caching, queues and service-to-service communication. A strong approach to code quality, including unit and integration testing. Bonus points Experience with any of the following is a plus: High-performance relational, analytical or NoSQL databases. Messaging and event-driven systems such as SQS, SNS, Kafka or similar. Observability tools for logging, monitoring, tracing and alerting. CI/CD pipelines and production deployment workflows. What’s in it for You? Responsibility: Take meaningful ownership of features and technical solutions in a small team where your work has a direct influence on the product. Flexibility: Flexible working hours and a hybrid setup combining our Stockholm office with remote work. Benefits: Occupational pension and an annual wellness allowance of up to SEK 5,000. The Univrses culture An international team: Work alongside colleagues from around the world with expertise across engineering, research and business in an open and collaborative environment. Lunch & Learns: Join our weekly sessions where colleagues and external speakers share knowledge and ideas over lunch. Team time: Start the week with Monday team breakfast and wind down together at our Friday After Work. The workspace: A bright, collaborative office by the water at Hammarby Kaj in Hammarby Sjöstad, Stockholm. Are you our next Senior Backend Developer? If this sounds like your kind of challenge, we'd love to hear from you. All application materials must be in English.
AI/ML Backend Developer Level 1 Stockholm, På plats
AI/ML Backend Developer – Level 1 Stockholm - På plats The company is an AI agency with the vision to become Sweden's leading player in the field. We help Swedish organizations unlock the full potential of AI — from strategy and advisory work to actually building and running production-grade AI solutions. We believe in meaningful technology: AI should create real business value, not just be technology for its own sake. Our consultants work on assignments with some of Sweden's most well-known companies — including ASSA ABLOY and Talent Venture Group — on everything from agentic AI solutions and RAG architecture to scalable data pipelines and cloud infrastructure. The Role We're growing and looking for more AI/ML-oriented backend developers to join our consultant team. As a Level 1 consultant, you'll join client assignments where you build backend services and APIs that power AI functionality — working closely with, and learning directly from, some of the industry's most experienced AI architects and tech leads. It's a great entry point if you want to build a career in AI engineering. Examples of what you might work on: Building and maintaining backend services in Python (e.g. FastAPI) Getting hands-on with LLM integrations, RAG patterns, and early steps into agentic AI Working in cloud environments (Azure, AWS, or GCP) alongside senior engineers Contributing to CI/CD pipelines and DevOps practices Taking part in architecture and requirements discussions, with plenty of room to learn Who We're Looking For You're early in your career as a developer. You don't need prior professional experience with AI — but you should have genuine curiosity about the field and a solid foundation in backend development. We think you have: Around 3–5 years of experience in backend or software development (internships and junior roles count) Working knowledge of Python (or strong willingness to pick it up quickly) A basic understanding of REST APIs, databases, and cloud services Genuine interest in AI/ML — maybe you've already experimented with LLMs, RAG, or ML in personal projects or coursework A relevant degree in computer science/IT, or equivalent experience Good communication skills in English and Swedish What We Offer As a consultant, you become part of a small, fast-moving team fully focused on generative AI. You get: Mentorship from senior AI architects and tech leads to live client assignments A clear and transparent salary model — base salary plus commission on your billed hours A clear career path, from Level 1 all the way up to Partner Modern AI development tools as a natural part of your workday (e.g. Claude Code, Cursor, GitHub Copilot) Membership in a community that shares knowledge through internal workshops You will be employed directly by the company. You will receive information about which company the advertisement refers to when you are in contact with the recruiter. Bumbli Group is therefore not the employer but the recruitment agency. Welcome to submit your application! Bumbli Group is part of House of Recruitment — a personal, traditional and quality-driven recruitment agency in Gothenburg.
Senior Backend Engineer to Oplane
The Story With AI tools accelerating how software is built, code is being shipped faster than ever before. This acceleration comes with a major catch, being architectural and security risks are accumulating just as fast. That’s where Oplane, a Malmö-based tech startup comes in. They are on a mission to make secure software the default for teams building at AI speed. Instead of patching things up afterwards, they embed security by design directly into the agentic workflow, running automated threat modeling and delivering real time, inline fixes straight into modern developer tools. A recent $5.2 million seed round led by Seed Capital and icebreaker vc, with backing from prominent tech investors from the Neo4j and Google ecosystems, is the direct driver behind expanding the engineering team right now. The Way They Build Agentic coding with Claude Code and Cursor is not a weekend experiment here, it is the core of how they ship software. The code is explicitly structured to optimize AI development, producing clear, modular architecture that both humans and AI agents can safely navigate and evolve. Your Mission & Impact As a Senior Backend Engineer, you will step in at a crucial early stage to design, build, and own the core infrastructure of the AI security platform. The job is to turn complex technical challenges into a scalable automated threat modeling engine, robust backend services, and Model Context Protocol (MCP) tools that power both the AI agents and the web application. What you will actually spend your days doing: Core Engineering: Architect and scale robust backend services and asynchronous workflows primarily in Python. AI Integration: Design and build MCP tools and internal agent facing functionalities to push the boundaries of agentic coding. System Optimization: Continuously improve performance, security, and reliability across the entire backend stack. Lead the AI Workflow: Work actively with Claude Code and Cursor as part of your daily routine. You will guide the AI to generate the first drafts, while you act as the main architect, reviewer, and owner of the production ready codebase. Who You Are You are a backend craftsman who thrives in the dynamic environment of an early-stage startup, bringing the autonomy and technical ownership needed to build things from the ground up. What you bring to the table: Deep Experience: A solid track record of 10+ years within software engineering, with a strong emphasis on backend systems and service oriented architectures. System Design Mastery: A profound understanding of how to build maintainable, highly reliable, and clean APIs. The AI First Mindset: Great enthusiasm for agentic development. You look forward to leveraging AI tools to write the first drafts, focusing your brainpower on reviewing, validating, and structuring the overarching architecture. Clean Coding Practices: A habit of writing software that is highly explicit, modular, and easy for both human colleagues and AI agents to understand and expand upon. Work Authorization: Full eligibility to work in Sweden. Bonus points if you have experience with Python frameworks like FastAPI and async services, a background or strong interest in application security (threat modeling/pentesting), or experience with GraphQL and developing developer facing platform tools. The Setup The Team: You will join a sharp, technical team of founders and engineers who move fast, collaborate closely, and are deeply passionate about technology. The Vibe: High bandwidth, real life collaboration is key here. This is a 100% onsite role at Oplane's office in central Malmö, where the team works closely to maximize execution and speed. Ready to build the future of AI security? Apply right now, or reach out to us at Qlose if you want to know more about the team and the journey ahead.
Senior .NET Developer
What will you do? As a Senior .NET Developer who not only loves solving complex problems but is passionate about code quality, and building scalable and testable solutions. You’ll be adequately self going, contribute to technical discussions, and aspire to deliver clean, robust code. You have a sharp eye for simplicity amidst complexity and pride yourself on thorough, thoughtful development, including writing tests for critical components. Whether working closely within your team or leading a project area independently, you’re confident, collaborative, and proactive. Areas of ownership: Take part the design, development, and deployment of complex, high-throughput backend services and APIs, ensuring best-in-class performance and maintainability. Establish and articulate a clear, ambitious long-term vision and technical roadmap for the evolution of the BE systems. This includes planning for future growth, anticipating technological shifts, and driving the adoption of new technologies and patterns to maintain a competitive edge. Proactively identify and resolve technical debt before they impact the business. Mentor engineers, elevating the technical expertise and quality of engineering output across the organization. Influence engineering standards and best practices for testing, performance tuning, and security across different development teams. Requirements Exceptional and proven proficiency in the .NET area, including extensive experience with C#, .NET Core/5+, and related frameworks (e.g., ASP. NET Core, Entity Framework Core). Demonstrable architecting skills with a strong background in designing and implementing large-scale, distributed systems (e.g., microservices, event-driven architectures, serverless). Expert knowledge of design patterns, domain-driven design (DDD), and SOLID principles. Extensive experience with at least one major cloud platform (AWS, Azure, or GCP) and related services (e.g., managed databases, message queues, containerization). Deep understanding of various database technologies (SQL and NoSQL) and data modeling best practices for scalable applications. System-Level Thinking: Ability to decompose complex problems into manageable components and evaluate trade-offs between different technical solutions (e.g., speed vs. stability, buy vs. build). Excellent verbal and written communication skills, with the ability to present complex technical ideas clearly to both technical and non-technical stakeholders, driving consensus on critical architectural decisions. Why Rebtel? Rebtel has been connecting people across borders for nearly 20 years. Today, we’re profitable, growing, and at a pivotal moment in our journey. As we enter our next phase, we’re building an organisation designed for speed, ownership, and real impact, where every role contributes directly to shaping what comes next. This is a place with global ambition and a strong foundation, where ideas move quickly and decisions matter. You won’t get lost in layers of process or slow-moving structures. Instead, you’ll find the space to take ownership, collaborate across teams, and make meaningful contributions from day one. Based in Stockholm, we bring together a diverse, international team united by a shared purpose: to simplify the way people connect worldwide. At Rebtel, you are the most important asset and we strive to provide a comprehensive package of benefits and perks that enhance your well-being and work experience. Here are some of the things you can expect from us: Pension Plan Health Checkups, Influenza shots and Private Medical Insurance Dental Insurance Occupational insurance Wellness allowance (5,000 SEK) Discount on gym memberships Bonus program Extra parental pay 30 days annual vacation Monday breakfasts Relocation Support, if you're joining us from afar, we'll assist you in making a smooth transition. We are Rebtel. We come from all around the world to create products for anyone who has crossed a border. We believe in equal opportunity and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
Senior Full-Stack Engineer
About agentmama We build AI agents that audit and optimize e-commerce advertising. Our platform syncs live data from Google Ads, Meta, Merchant Center, and Google Analytics, runs it through a rule engine, LLM-powered audit agents, and our own prediction models, and turns the findings into concrete actions marketers can apply with one click. We're a small team shipping fast on a modern, strictly-typed stack. You'd be one of a handful of engineers reporting directly to the CTO, which means real ownership: features you design end-to-end, from the Prisma schema to the React component, ship to customers within days. What you'll do Design and build features across our TypeScript monorepo — tRPC procedures and NestJS services on the backend, React on the frontend. Extend our integration workers that sync campaign, product, and analytics data from the Google and Meta APIs via Cloud Pub/Sub pipelines. Work on the AI audit agent: prompt design, rule evaluation, and the plumbing that turns LLM output into reliable, deduplicated actions — across multiple model providers, not just one. Help productionize our in-house prediction models: wiring their output into the rule engine and keeping training data and evaluation pipelines healthy. Evolve the data model in PostgreSQL/Prisma and keep migrations, multi-tenancy, and role-based access clean as the product grows. Own quality: write Jest tests alongside your code, review PRs, and help keep our CI/CD pipeline to Cloud Run fast and boring. Our stackBackend TypeScript · Node.js NestJS + Fastify tRPC · Zod Prisma · PostgreSQL Frontend React · Vite End-to-end types via tRPC Infrastructure Google Cloud Run · Pub/Sub Docker · GitHub Actions pnpm workspaces · Turborepo AI & integrations Multiple LLM providers In-house prediction models Google Ads · Meta Merchant Center · GA4 What we're looking for 5+ years building production web applications, with strong TypeScript on both server and client. Solid relational database instincts — schema design, migrations, and query performance in PostgreSQL (Prisma experience is a plus). Experience with event-driven or queue-based architectures (Pub/Sub, SQS, Kafka, or similar) and the failure modes that come with them. A habit of testing: you write tests because they let you move faster, not because someone told you to. Pragmatic product sense — you ask why before how, and you'd rather ship a focused feature than a perfect abstraction. Nice to have Hands-on work with LLM APIs in production — prompting, evals, structured output, cost control, and switching between providers. Applied ML experience: training, evaluating, or serving prediction models alongside product code. Familiarity with the Google Ads, Meta, or Merchant Center APIs, or ad-tech / e-commerce domain experience. NestJS, tRPC, or GCP (Cloud Run, Artifact Registry, Workload Identity) in a previous role. How we work Small team, short feedback loops, no ceremony for ceremony's sake. Strict TypeScript, code review on everything, CI that deploys to Cloud Run on merge. We optimize for shipping value to customers weekly and keeping the codebase a place people enjoy working in. Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.
We are looking for a C#.NET developer!
Join a high-performance engineering environment where you will tackle complex logic and massive datasets. Our client leverages custom database structures and heavy algorithms to drive innovation in scalable backend architecture. Apply today as we use ongoing selection. About the role Our client is a well-established, technology-driven organization where deep engineering is at the heart of what they build. From a proprietary search engine to advanced cybersecurity solutions, their products are built to handle massive amounts of data and deliver actionable insights in real time. Their R&D, engineering, and data centers are located in Sweden, headquarters in London, and teams across the US, the company operates on a truly global scale. Together with our client, we are looking for a motivated C# .NET Developer to join their core engine team, currently consisting of four developers. Here, you will work on the systems that power the platform’s high-volume, near-real-time data processing. You will design and develop scalable backend services and APIs, working closely with data ingestion, search, and indexing technologies. Performance, reliability, scalability, and clean architecture are central to the role, and you will have a real opportunity to influence technical decisions as the platform continues to evolve. You will work in an agile and highly collaborative environment alongside experienced engineers. Most importantly, your work will have a direct impact: the systems you build will help security teams around the world detect and act on critical cyber intelligence. Work tasks Design and implement distributed and scalable backend solutions using C# .NET. Manage and process large datasets through efficient data pipelines. Own the performance and health of our databases and data structures. Maintain and evolve the company's proprietary in-house database structures and search engines. Build and optimize robust integrations between diverse systems and data sources. Leverage modern AI tools in your daily workflow as part of the company-wide AI-first mindset. Maintain and optimize existing codebase while actively driving new feature development and modernization initiatives. Move between fast-paced integration work and deeper architectural design as the platform evolves. We are looking for Platform/support mindset, self-directedness, or production ownership A couple years experience and advanced knowledge of C# .NET development. Good knowledge of databases SQL and/or postgres, search engines such as ElasticSearch. Pragmatic approach to AI with an eagerness to adopt AI-assisted development tools. Fluency in English, both written and spoken. It is meritorious if you have experience in Python. Our recruitment process This recruitment process is handled by Academic Work and it is our client’s wish that all questions regarding the position is directed to Academic Work. Our selection process is continuous and the advert may close before the recruitment process is completed if we have moved forward to the next phase. The process includes two tests: one personality test and one cognitive test. The tests are tools to find the right talent for the right position, to enable equality, diversity, and a fair process.
Senior Fullstack Developer to Compodium
At Compodium, we build video meetings and communication solutions for organizations with high demands on security and regulatory compliance. That affects everything we do, from architecture and identity to how we ensure control of data at every step. We develop reliable, user-friendly products that let customers collaborate and share information with confidence, without slowing down daily work. Now we’re looking for a Senior Fullstack Developer who wants to help evolve both our platform and products in a company where technology, customer value, and long-term thinking go hand in hand. The role As a Senior Fullstack Developer, you’ll work hands-on with both architecture and implementation, helping improve our video services and SaaS products. You’ll build product-focused solutions designed for environments with high requirements for stability, usability, and data control. AI is a core part of how we build software. We expect you to actively leverage tools such as Claude Code, OpenAI Codex, Cursor, or similar, and to be skilled in context engineering and orchestrating agents to systematically improve architectural decisions, implementation speed, and code quality. You will work on: Video solutions based on WebRTC and MediaSoup Modern web-based SaaS services Improvements to scalability, performance, security, and UX Automated flows for sign-up, onboarding, and online sales Integrations with external systems, for example Stripe and eID services Technically, we work with: React and Node.js PostgreSQL Keycloak (identity and authentication) Docker and Kubernetes CI/CD and automation as a natural part of the workflow Who we think you are You’ve built enough to know what holds up over time. You take ownership of the bigger picture, not just your part of the codebase, and you enjoy environments where technical decisions, structure, and product go hand in hand. We believe you: Have several years of experience as a fullstack developer Are confident with Node.js and modern web applications, or have a strong backend background and want to work more fullstack Have a solid understanding of security, performance, and scalability in distributed systems Are used to container-based environments and see automation as the default Are curious, pragmatic, and enjoy improving both code and ways of working Right now, we’re modernizing our platform, building new modules, and scaling our SaaS offerings. You’ll have real influence on technical direction and help shape how the product evolves and is used.
Senior Backend (C#) Platform Deveveloper
About us Hacksaw Studios is a Stockholm-based game studio focused on creating innovative, high-quality gaming experiences. With a focus on performance and precision, we bring ideas to life through technical expertise and creative collaboration. We have wide distribution, and our games are played by millions of people every month by players all over the world. We are now looking for a C# platform developer to join our growing Stockholm team. You'll be the person helping build and maintain the high-performance backend systems that power our games and platform infrastructure. You'll be solving real technical challenges that impact thousands of active users, collaborating closely with product teams, and helping ensure our platform is robust and ready for future growth. The Role Your key responsibilities include: Design & Implement Features: Build robust, scalable features for our C# / ASP.NET-based platform and supporting systems. Optimize Performance: Ensure code and data structures deliver high throughput, low latency, and reliable processing of thousands of transactions per second. Testing & Stability: Write and maintain comprehensive unit tests to ensure platform stability. Code Collaboration: Participate in code reviews and contribute to clean, maintainable, and well-documented code. Technical Documentation: Maintain clear and thorough technical documentation. Team Coordination: Work closely with peers and product teams to maintain architectural consistency and meet performance standards. What We’re Looking For Strong experience in C# backend development. Solid understanding of ASP.NET (experience preferred but can be developed on the job). Deep knowledge of SQL, including writing efficient queries and designing high-performance database schemas. Practical experience with caching strategies (e.g., Redis). Expertise in multithreaded programming and thread-safe design patterns. Proficiency in using the C# debugger for troubleshooting complex issues. A mindset focused on performance, scalability, and reliability. Nice-to-have: Experience with automated unit testing frameworks. A university degree in Computer Science or related field. Interest in gaming, professionally or recreationally. Experience with front-end development. Experience mentoring or coaching other colleagues. What We Offer A modern office in central Stockholm. Work with experienced, passionate colleagues in the gaming industry. The opportunity to create games with a global audience. Real influence, ownership, and personal growth opportunities. Wellbeing perks including wellness allowance and regular in-office massage. Practical Details This is an on-site position in Stockholm. Unfortunately, we cannot assist with relocation or visa sponsorship. Ready to Join the Game Makers? Apply now! We review applications on a rolling basis.
Matcha ditt befintliga CV mot dessa jobb
Ladda upp ditt CV på 30 sekunder. Vår deterministiska matchningsmotor räknar ut ditt exakta matchningsbetyg och AI:n hjälper dig skräddarsy din ansökan.