572 backend developer English-speaking jobs in Copenhagen

Senior Backend Developer will build and operate a high-traffic application, maintain and develop a robust system, and contribute to continuous improvements. Requires solid experience with JavaScript, PHP, MySQL, and Git. Familiarity with Laravel, Python, Linux, AWS, CI/CD, and Elastic+Kibana is a plus.

Right now we are looking for a senior backend developer for our Danish team who want to be part of this

Your Role Senior Back-End Developer to elevate our technology stack in Copenhagen. ... Key Responsibilities Lead the design and development of scalable and secure backend solutions Develop ... and best practices Requirements Required Qualifications Minimum 5 years of professional experience in backend

Full Stack Flutter Developer at Oak (closed) At Oak, we're on a mission to become the leading outdoor ... Frontend and Backend Development: Collaborate with the team to develop both frontend and backend components ... CET +/-2h), or at one of our shared co-working spaces in Copenhagen region or Chamonix The Role: As a Developer ... Experience with backend development using Firebase is a plus. ... of the OAK app using Flutter for the frontend and Firebase for the backend.

Your Role As a Senior Backend Developer at Tonsser, you'll be a vital part of our engineering team ... Position Details Role: Backend Developer (Ruby on Rails) Joining Date: August 2025 Ready to Score Your ... €62,000 - €72,000 a year Join the Tonsser Team as a Senior Backend Engineer Who We Are Tonsser is where ... workflow - Is a team player who strives to improve not only themselves, but everyone around them - Values developer ... Requirements for the ideal candidate - You have minimum 5 years of experience working as a Backend Engineer

About the Role As a Full-Stack Developer at Creditro, you will play a central role in shaping and evolving ... You will work across both backend and frontend layers, contributing to everything from core APIs and ... What You’ll Do As a Full-Stack Developer at Creditro, your responsibilities will include: Designing ... , developing, and optimizing backend services using Node.js and TypeScript, with a strong focus on performance ... turn requirements into robust technical solutions What We’re Looking For We’re looking for a developer

decisions Nice to Have Experience working in regulated industries (e.g. pharma, healthcare, finance) Backend ... initiatives such as  monorepositories, micro-frontends, BFFs, and modular frontend design Collaborate with backend ... Senior Frontend Developer Location: Copenhagen, Denmark Contract Type: Fixed-term (with possibilities ... experience, particularly with C# Who You Are You are a hands-on developer with natural curiosity ... Role Overview We are looking for a Senior Frontend Developer to join a product team building and evolving

About the role  As a Fullstack Developer, you will join one of our three product teams within the Customer ... with your CV and let us know a bit more about why you're interested in the position as Fullstack Developer ... You'll be part of defining architecture, shaping our frontend and backend stack, and influencing ... from day one: Help design and build the new Nordic customer platform and modernize our frontend and backend ... #39;re comfortable with:  JavaScript/TypeScript  React or similar libraries  services on the backend

About The Role As a Fullstack Developer, you will join one of our three product teams within the Customer ... with your CV and let us know a bit more about why you're interested in the position as Fullstack Developer ... You'll be part of defining architecture, shaping our frontend and backend stack, and influencing ... from day one: Help design and build the new Nordic customer platform and modernize our frontend and backend ... looking for We are looking for Fullstack Developers with either a strong frontend experience and solid backend

As a Senior .Net Backend Developer, you'll design, implement, and maintain high-performance APIs ... Are you passionate about building robust, scalable backend systems that power cutting-edge marketing ... You are a problem-solver with a passion for creating efficient, maintainable backend systems. ... More Specifically, You Will Develop and maintain scalable backend services using .Net 9 focusing on ... Software Application Architect to implement the technical vision and architectural patterns across backend

Key Responsibilities Design, develop, and enhance Java-based backend systems Replace and modernize ... Role: Expert Java Developer Location: Copenhagen, Denmark Work Mode: Onsite (No Remote) Assignment ... 2026 End Date: 31 December 2026 Duration: ~11.5 Months Role Overview We are seeking an Expert Java Developer

consistent patterns across synchronous and asynchronous integrations What We're Looking For Senior-level backend ... senior developer with ownership of TimeLog's API and integration landscape. ... About the Role We are looking for a senior, hands-on developer who thrives on building great APIs and ... integrations, cares deeply about developer experience, and wants real ownership in a modern, impactful ... Role Description As a Senior Developer Experience Specialist - APIs & Integrations , you will be a hands-on

Senior Flutter Developer (MUST be based in Denmark ONLY) Develop and maintain sophisticated, high-performance ... Knowledge of Firebase or similar cloud-based backend services. ... Collaborate with cross-functional teams (Designers, Product Managers, and Backend Engineers) to define

Interview process includes an online technical interview with our CTO and a developer from the team, ... Langstack is a visual development platform that makes it easy to develop and deploy backend applications ... As a Senior Backend Engineer and Architect, you'll be involved throughout the product life cycle ... On the backend, you'll be working on modern architectures and deep designs with plenty of opportunities

Developer The Role: As a senior Backend Developer, you will be a part of the team that works on ... The Backend Development team is responsible for building all the API services and backend processes with ... the development of the backend components of all Bitfinex Services (main trading application, Lightning ... Scalability - all backend services that power Bitfinex platform must remain effortlessly smooth, responsive ... the narrative of decentralized finance, you'll feel right at home We're looking for: Senior Backend

Position Overview: We are looking for a developer with a full-stack and DevOps mindset who thrives writing ... code for the backend (Rust) as well as frontend (TypeScript/React). ... You may master the entire stack, or you may lean more towards the backend or frontend. ... Since Rust forms the core of their backend, the ideal candidate either has Rust-experience, or a strong ... Experience: You have at least 2 years of hands-on experience in web application development both front and backend

Job Description We are seeking a versatile Full-Stack Developer with strong backend foundations to join ... Remote Full-Stack Developer (Kotlin/Java/React + AI Focus) Scanz has been working for nearly two decades ... This isn't a typical backend position. ... You will primarily work with Kotlin/Java on the backend and TypeScript on the frontend, with significant ... Maintain and enhance our user accounts backend APIs Contribute to our Electron desktop application and

As a Backend Developer at Edda Group, you will focus on improving our digital capabilities. ... As a Backend Developer, you will play a pivotal role in shaping our digital future and driving innovation ... About the role: We're interested in both senior and mid-level backend developers to work onsite

Be confident working with both backend and frontend technologies—this is not a pure backend role. ... Ruby on Rails developer The business Driversnote is a product-led, profitable SaaS company headquartered ... A shaping trio consists of a product manager, designer and developer who together define projects that ... you are not already used to working across the full stack, we will transform you into a full‐stack developer ... opportunity We grow our product team with care, and are now looking for a seasoned Senior Full‐Stack Developer

AXON Networks Copenhagen Municipality, Capital Region of Denmark, Denmark Job Overview The Lead Python Developer ... Extensive experience in backend software development with Python. ... Ability to collaborate across AI, backend, network engineering, and operations. ... Expert‐level proficiency in Python (system design, backend services, AI/ML workflows). ... Responsibilities Define the architectural vision for Python‐based LLM agents and supporting backend systems