CERN

Backend Software Developer (Java/Python) (BE-CSS-DSP-2026-151-GRAE)

CERN  •  Canton de Genève, CH (Hybrid)  •  9 hours ago
Apply
AI can make mistakes so check important info. Chat history is never stored.

Job Description

You will contribute to the design, development, testing and maintenance of the Data Processing Platform (DPP), used for both offline and online analysis of accelerator and beam data. Working within the Data Processing team of the CERN Controls Software & Services group and following the Scrum methodology, you will help build reliable and scalable backend services supporting the control, monitoring and analysis of particle accelerators and equipment.

You will participate in the validation and evolution of the platform architecture, develop production-ready integrations, and contribute to the modernisation of existing services through the migration of legacy systems to the DPP.

Your responsibilities

  • Contribute to the design, development, testing, and maintenance of software components for the Data Processing Platform (DPP).
  • Collaborate with senior developers and stakeholders to gather requirements and implement reliable software solutions for accelerator controls and data processing.
  • Participate in the evolution of the platform by contributing to new features, integrations, and improvements to existing services.
  • Contribute to software quality activities, including testing, code reviews, debugging, and documentation.
  • Learn and apply modern software engineering practices, tools, and technologies used within the CERN Controls Software & Services group.

More information here

Your profile

  • Experience in software development using Java and Python.
  • Interest in software quality practices, testing methodologies, and maintainable software design.
  • Interest in cloud-native technologies and modern software platforms; familiarity with Kubernetes, Knative, or similar technologies would be considered an asset.

Skills

  • Good knowledge of object-oriented programming principles and software engineering fundamentals.
  • Understanding of concurrent programming and distributed systems concepts.
  • Knowledge of the Spring Framework ecosystem (Spring Boot).
  • Familiarity with version control systems, CI/CD concepts, and automated development workflows.
  • Exposure to monitoring and logging tools such as Prometheus, Grafana, or the ELK Stack would be considered an advantage.
  • Spoken and written English, with a commitment to learn French.

Eligibility criteria:

  • You are a national of a CERN Member or Associate Member State
  • By the application deadline, you have a maximum of two years of professional experience since graduation in Software Engineer, Computer Science (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree
  • You have never had a CERN fellow or graduate contract before.
  • Applicants without University degree are not eligible.
  • Applicants with a PhD are not eligible.

Additional Information

Job closing date: 18.06.2026 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-August-2026

Job reference: BE-CSS-DSP-2026-151-GRAE

Field of work: Software Engineering and IT

Benchmark job: 200020 - Computing Engineer

Global Benefits

  • A monthly stipend between 5266-5793 Swiss Francs per month (tax free) 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.

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

CERN

About CERN

CERN is a truly unique organisation. A genuine collaboration between countries, universities, and scientists, driven not by profit margins, but by a commitment to create and share knowledge.

People here are part of immense scientific discoveries, answering some of life’s most complex questions and pushing the boundaries of understanding. Experts from every field come here to share in this ambition and the nature of this collaborative, international community creates a genuine atmosphere of trust. People are free to work creatively and to trust in, and rely on, their colleagues across the organisation.

History’s being made here – and the excitement is tangible, inspiring, and overwhelming at times. It is the only place in the world where you can do this work in this way.

---

If you’ve worked at CERN in the past, why not join the official CERN LinkedIn Alumni group, linked from this page.

Industry
Biotech & Life Sciences
Company Size
5,001-10,000 employees
Headquarters
Meyrin, CH
Year Founded
1954
Website
home.cern
Social Media