Software Developer (Java & Angular) - European Organization for Nuclear Research (Geneva)
About this position
The summary below is published by European Organization for Nuclear Research on the official vacancy notice. Our own analysis — salary realism, comparable openings, career trajectory, language profile — follows further down the page.
Drive the modernisation of CERN's Geodetic Metrology data management system, migrating legacy Oracle APEX/PL/SQL applications to a Java/Spring Boot and Angular platform, while leading the redesign of a mission-critical application for CERN's Accelerator Complex.
Your responsibilities
- Analyse Oracle APEX pages, processes and PL/SQL packages to understand business workflows and data dependencies. - Implement Spring Boot REST APIs and Angular Frontend. - Write automated tests and apply software quality practices. - Participate in the whole software development lifecycle (requirements, design, development, testing), following a modern agile approach to ensure high-quality outcomes. - Interact with the end-users of the services to understand their needs and help translate those into appropriate software solutions. - Build strong partnerships with IT and multidisciplinary teams across CERN to ensure the delivery of reliable, maintainable, and scalable software solutions aligned with current needs and future strategic goals. - This role includes team supervision responsibilities.
More information here.
Your profile
- Proven experience in designing and developing software…
Excerpt shown; read the full notice on the official page. The structured breakdown below covers the key facts.
Key responsibilities
According to the vacancy notice, the role centres on the following duties:
- Analyse Oracle APEX pages, processes and PL/SQL packages to understand business workflows and data dependencies
- Implement Spring Boot REST APIs and Angular Frontend
- Write automated tests and apply software quality practices
- Participate in the whole software development lifecycle (requirements, design, development, testing) following agile approach
- Interact with end-users to understand their needs and translate into software solutions
- Build partnerships with IT and multidisciplinary teams across CERN
- Team supervision responsibilities
Are you eligible?
Check these requirements from the notice before investing time in an application:
- Education: Master's degree or PhD in Software Engineering or related field
- Experience: Master's degree with 2 to 6 years of post-graduation professional experience; or PhD with no more than 3 years of post-graduation professional experience
- Languages: English (spoken…), French (spoken…)
- Key skills: Java technologies and modern JavaScript/TypeScript frameworks, Concurrent and multithreaded programming, Software quality assurance practices and related tools (code review, unit tests, SonarQube), ICT systems architecture and design, CI/CD pipelines and automated build, test, and deployment workflows, Cloud-native technologies, including Kubernetes, Spring framework ecosystem, Relational database systems, particularly Oracle Database and PL/SQL, SOLID principles, Software development lifecycle (SDLC) tools, methodologies, and procedures
- Eligibility: National of a CERN Member or Associate Member State; professional background in Software Engineering or related field; never had a CERN fellow or graduate contract before
Contract and working arrangements
Contract duration: 24 months, with a possible extension up to 36 months maximum.
Working arrangements: Hybrid.
Hiring unit: Geodetic Metrology, Accelerator Complex.
Position details
- Reference
- BE-GM-APC-2026-151-GRAP
- Last Verified
- 15 September 2026
Position overview
This is the official EU Careers listing for Software Developer (Java & Angular) at CERN based in Geneva (Other). The vacancy reference is BE-GM-APC-2026-151-GRAP. The role falls under the Research domain.
Drive the modernisation of CERN's Geodetic Metrology data management system, migrating legacy Oracle APEX/PL/SQL applications to a Java/Spring Boot and Angular platform, while leading the redesign of a mission-critical application for CERN's Accelerator Complex.
Your responsibilities
- Analyse Oracle APEX pages, processes and PL/SQL packages to understand business workflows and data dependencies. - Implement Spring Boot REST APIs and Angular Frontend. - Write automated tests and apply software quality practices. - Participate in the whole software development lifecycle (requirements, design, development, testing), following a modern agile approach to ensure high-quality outcomes. - Interact with the end-users of the services to understand their needs and help translate those into appropriate software solutions. - Build strong partnerships with IT and multidisciplinary teams across CERN to ensure the delivery of reliable, maintainable, and scalable software solutions aligned with current needs and future strategic goals. - This role includes team supervision responsibilities.
More information here.
Your profile
- Proven experience in designing and developing software applications using Java technologies and modern JavaScript/TypeScript frameworks. - Practical experience with concurrent and multithreaded programming. - Experience applying software quality assurance practices and using related tools (code review, preparing tests, deliver high quality documentation, unit tests, clean code, sonarqube). - Experience in ICT systems architecture and design, including the design of scalable services and APIs. - Familiarity with CI/CD pipelines and automated build, test, and deployment workflows. - Experience with cloud-native technologies, including Kubernetes. - Knowledge of Oracle APEX would be an asset.
Skills
- Strong knowledge of the Spring framework ecosystem. - Strong knowledge of relational database systems, particularly Oracle Database, including proficiency in PL/SQL. - Ability to design reliable software services following SOLID principles or similar best practices. - Knowledge of software development lifecycle (SDLC) tools, methodologies, and procedures. - Ability to deliver high-quality work on time and meet expectations. - Contributes to a positive team environment through an optimistic and constructive attitude while proactively addressing issues. - Spoken and written English or French, with a commitment to learn the basics of the other language.
Eligibility criteria:
- You are a national of a CERN Member or Associate Member State. - You have a professional background in Software Engineering (or a related field) and have either: - a Master's degree with 2 to 6 years of post-graduation professional experience; - or a PhD with no more than 3 years of post-graduation professional experience.
- You have never had a CERN fellow or graduate contract before.
Job closing date: 06.10.2026 at 23:59 CEST.
Contract duration: 24 months, with a possible extension up to 36 months maximum.
Working hours: 40 hours per week
Job flexibility: Hybrid
Target start date: 01-November-2026
Job reference: BE-GM-APC-2026-151-GRAP
Field of work: Information Technologies
Benchmark job: 200020 - Computing Engineer
Global Benefits
- A monthly net stipend of either 6372 or 7004 Swiss Francs per month depending on your degree. - 30 days of paid leave per year plus 2 weeks annual closure. - Coverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund. - Family, child and infant monthly allowances depending on your individual circumstances. - A relocation package (installation grant and travel expenses) depending on your individual circumstances. - Possibility to extend your contract up to 36 months. - On-the-job and formal training including language classes.
Overview of CERN -Discover a world where the impossible is made possible!
At CERN, the European Organization for Nuclear Research, we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering, technical, scientific, and administrative fields. Together, we foster an environment where innovation and collaboration thrive.
Every day, we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams, ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation, and it remains central to our mission and continued success.
If you are ready to be part of a dynamic, inclusive community pushing the boundaries of knowledge, CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe!TAKE PART!
More information about us, here:careers.cern
Application timeline
This vacancy was first listed on 15 September 2026, today.
No closing date is published in the source feed for this position. EU vacancies typically remain open for four to eight weeks; check the official vacancy notice for the cut-off date and time.
Last verified against the EU Careers feed on 15 September 2026.
Where to learn more
For headcount, mission, and other open vacancies at CERN see the CERN institution page; for the cost of living, correction coefficient, and other postings in Geneva see our Geneva location page; for related vacancies in the Research field browse our Research domain page.
New to EU careers? Our beginner's guide walks through entry routes, EPSO competitions, and what to prepare. For application logistics see application tips and EPSO competitions.
Career trajectory
Language profile
Application cadence
Visit the official European Organization for Nuclear Research website
Source: This job listing was sourced from the officialEU Careers portal (EPSO). First published: .