Full-Stack Software Engineer for CERNs PLM Platform (EN-IM-PLM-2026-127-GRAE)

You will join an international team within the PLM (Product Lifecycle Management) section, delivering engineering information management solutions for the entire accelerator complex and its detectors. This includes managing millions of engineering documents, product definitions, and CAD models.

Responsibilities

Implement backend applications using Java or .NET.
Build web applications using modern technologies (React/Electron/Typescript).
Integrate 3D model visualisation technologies: web and native viewers, virtual/augmented reality.
Perform code reviews, testing, delivery, and support of the software.
Carry out data analysis and data migrations.
Be part of a project delivering engineering Digital Twins of CERN installations.

Profile

Experience and/or strong knowledge in developing and maintaining large software projects using the .NET or Java Enterprise Edition stacks.
Experience and/or strong knowledge with relational databases such as Oracle, PostgreSQL, or SQL Server as part of large-scale systems.
Experience and/or strong knowledge in Agile and DevOps practices in a collaborative team environment.

Skills

Backend development using Java or .NET.
Frontend development using React or Angular.
Experience with SQL databases (i.e. Oracle, SQL Server).
Git.
CI/CD tools.
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 Information Technology (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 Information

Job closing date: 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-September-2026.
Job reference: EN-IM-PLM- -GRAE.
Field of work: Software Engineering and IT.
Benchmark job: - Computing Engineer.

Benefits

A monthly stipend between 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.

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