Full Stack Web Developer (EN-IM-CAP-2025-95-GRAE)

Your responsibilities

We are looking for a motivated early-career engineer who takes pride in doing great work and is eager to grow their skills. You enjoy solving problems, taking ownership, and getting things done, but you also know that great engineering is a team effort.

About the role:

As a Full Stack Web Developer within CERN's Engineering Information Management group, within the Engineering Department (EN), you will design, develop, and maintain web applications that support CERN's engineering and information management processes. These tools are critical for ensuring operational safety and coordinating the installation and maintenance of high-tech equipment used in CERN's large-scale scientific experiments.

What you'll do:

• Contribute to the development and enhancement of production-grade applications using Java, React, and Oracle technologies.
• Model and execute complex business processes using BPMN (Camunda).
• Collaborate closely with engineers and IT professionals to understand requirements and translate them into reliable software solutions.
• Ensure code quality and system performance through rigorous testing, debugging, and optimization.
• Participate in Agile development practices, contribute to team retrospectives, bring your ideas and continuously improve team processes.
• Gain deep insights into CERN's operations while building software that is actively used by a large and diverse community.
• Work hard, communicate openly, contribute to a relaxed and respectful team culture, learn a lot.

Why join us:

• Be part of a young, efficient, and collaborative DevOps team.
• Work in a unique scientific environment, surrounded by some of the most advanced technology on the planet.
• Learn and grow through hands-on experience with real-world engineering challenges.
• Contribute to tools that support scientific discovery on a global scale.

Your profile

Skills:

• Java;
• React (or similar modern web development libraries and frameworks);
• Oracle (or other relational databases);
• Modern development tools (git, github/gitlab, CI/CD);
• BPMN and Camunda (would be beneficial);
• Good communication and team skills;
• 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.
• By the application deadline, you have a maximum of two years of professional experience since graduation in Software Engineering/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.

Job closing date: 16.06.2025 at 23:59 CEST.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Target start date: 01-July-2025 (August/September would also be possible)

Job reference: EN-IM-CAP-2025-95-GRAE

Field of work: Software Engineering and IT

What we offer

• A monthly stipend ranging between 5196 and 5716 Swiss Francs (net of tax).
• Coverage by CERN's comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
• Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.
• 30 days of paid leave per year.
• On-the-job and formal training at CERN as well as in-house language courses for English and/or French.

About us

At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on http://home.cern.

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.