Junior Full-stack Software Engineer (BE-CSS-GTA-2025-220-GRAE)

• Full-time

Job Description

You will research and evaluate potential solutions aiming to provide a concrete tool that will be part of the AFT application. You will be able to gain extensive knowledge in a variety of technologies used in the industry, the complete development cycle of enterprise tools, aiming to provide a concrete solution which will be used throughout the Accelerator & Technology Sector.

Your responsibilities

• Participate in the gathering of User Requirements.
• Contribute to the Analysis & Design of the tool with an emphasis on the UX aspects.
• Take part in the implementation of the full-stack including writing tests.
• Participate in the operational deployment and in user support.

Your profile

• Practical knowledge of JavaScript/ Typescript.
• Practical knowledge of Java.
• Practical knowledge of one of the major Web frameworks (Angular, VueJS, React).
• Practical knowledge of SpringBoot and Gradle.

Skills:

• Typescript and Angular.
• Java.
• Basic knowledge of relational databases and SQL
• Basic knowledge of Git and DevOps practices.
• 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 Web development (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: 09.11.2025 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: Fully Onsite

Target start date: 01-January-2026

Job reference: BE-CSS-GTA-2025-220-GRAE

Field of work: Software Engineering and IT

Benchmark job: 200020 - Computing Engineer

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.

I’m interested