staff java backend developer

Mastercard in Denmark is seeking a Software Engineer II to join our scrum-based teams. You will develop Java backend services within modern microservices architecture, contribute to both backend and frontend aspects, and collaborate with stakeholders to refine requirements. You will ensure security, stability, and scalability, work with DevOps and QA, and...

Do you want to build software that powers real‑world technology - from energy systems and advanced manufacturing to automation and complex engineering solutions?At DIS/CREADIS, you will work on technically complex projects where software interacts with physical systems, equipment, and advanced engineering platforms. Rather than developing purely digital...

Do you want to build software that powers real-world technology - from energy systems and advanced manufacturing to automation and complex engineering solutions?At DIS/CREADIS, you will work on technically complex projects where software interacts with physical systems, equipment, and advanced engineering platforms. Rather than developing purely digital...

Twoday is seeking a Senior Backend Java Developer to join a major Danish digital health delivery in Copenhagen. You will work hands‑on across the full lifecycle, writing robust backend services, APIs and integrations with focus on reliability, security and production readiness.You’ll collaborate with Solution Architects, testers and DevOps, operate in a...

A leading software developer firm in Aarhus seeks a Full Stack Developer with a backend focus in Java. You will build scalable, data-intensive platforms in a supportive team environment. Experience with Java, Kafka, Docker, and Kubernetes is essential. This role emphasizes ownership of end-to-end solutions without predefined solutions, allowing exploration...

A leading data and AI infrastructure company based in Aarhus, Denmark is seeking a Senior Staff Software Engineer to join their backend team. This role involves designing, developing, and maintaining robust backend systems that power their platform, ensuring high performance and reliability. Ideal candidates will have over 15 years of experience in...

Systematic Aarhus seeks a Senior Backend Developer for the Platform team to design and build the scalable foundation used across the SitaWare Suite. You’ll work at the intersection of Java backend development and infrastructure, shaping cluster tooling, installer automation and backend services.You’ll join a 5-person, international Platform team in...

Jobs Europe AB is seeking a Java Developer to design and build internal platforms powering iGaming operations, including studio tools, content management, admin back-office services, reporting, and integrations. You will own backend systems with Java and Spring Boot, develop scalable microservices, deploy on Kubernetes, and work with cloud platforms...

Mastercard in Denmark is seeking a Software Engineer II to join our scrum-based teams. You will develop Java backend services within modern microservices architecture, contribute to both backend and frontend aspects, and collaborate with stakeholders to refine requirements.You will ensure security, stability, and scalability, work with DevOps and QA, and...

Java & SQL Developer - Data Focused ApplicationsDate: Jun 6, 2026Location: Venlo, NL, 5928 PGCompany: Belden IncInnovation Starts With YouPropel your career at Belden, where innovation creates possibilities—for our people, our customers, and the communities we serve. We connect people, information, and ideas to solve the world’s most complex connectivity...

Twoday is the leading digital transformation partner in Northern Europe with a global presence. With approximately 3,000 specialists, we collaborate with some of the most admired private and public organisations to deliver cutting-edge digital solutions. Our expertise spans software engineering, Data & AI, cloud platforms, digital experiences and business...

A Danish software development company in Copenhagen is seeking a Software Engineer to join their collaborative team. The role involves developing and maintaining backend systems, integrating external APIs, and ensuring secure data-sharing protocols. The ideal candidate has solid experience with Java and familiarity with various tech stacks, including React...

Twoday in Copenhagen is seeking a Java Developer to join as a permanent consultant for a major public sector client. You will work full-time onsite, delivering secure, scalable enterprise Java applications within a multi-supplier delivery environment.You will strengthen backend services with Spring, REST, Docker and Linux, contribute to CI/CD via Azure...

A leading trading platform is seeking a Senior Backend Engineer to enhance its cutting-edge trading platform based in Copenhagen. This position demands strong skills in Java Spring boot and backend development, coupled with excellent collaboration and communication abilities. You will work in a fast-paced agile environment to optimize the platform and ensure...

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of...

Working with modern technologies and transforming data into information. Providing commanders with advanced data capture and analysis capabilities. Working in a team of highly skilled and competent Software engineers with the opportunity to develop your personal competencies too. Sounds interesting? The job Joining us, you your key purpose is to work on...

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you'd like, where you'll be supported and inspired by a collaborative community of colleagues around the world, and where you'll be able to reimagine what's possible. Join us and help the world's leading organizations unlock the value of technology and...

Twoday A/S in Copenhagen seeks a Senior Java Backend Developer to help transform digital health platforms. You will work across the software lifecycle, implementing backend services, APIs, and integrations within a complex healthcare-focused ecosystem.Join a team that values robust engineering, clear communication, and shared responsibility. You will...

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of...

Twoday is seeking a Senior Backend Java Developer to help deliver mission critical digital health solutions in Copenhagen. You will work on complex systems ensuring reliability, security, and high quality across the full software lifecycle.Join a delivery model where multiple suppliers collaborate in shared teams, taking technical ownership and contributing...