Responsibilities
- Develop and maintain web applications using Python on the backend and React on the frontend and implement new features to support the archiving, publication, and sharing of research outputs.
- Contribute to the migration of existing content to a new digital platform, ensuring data quality and consistency.
- Write, test, and review code to ensure reliability, performance, and maintainability.
- Collaborate with software engineers and end users to understand requirements and translate them into technical solutions.
- Document technical solutions and contribute to user and developer documentation.
- Learn and apply best practices in software engineering, version control, and agile teamwork.
Profile
- Experience with Python and web application development (for example using Flask or similar frameworks).
- Basic knowledge of JavaScript and modern web interfaces (for example React or similar libraries).
- Familiarity with version control systems, such as Git.
- Ability to write clear, maintainable code and learn new technologies.
- Experience with relational databases, such as PostgreSQL.
- Familiarity with search or indexing technologies, such as Elasticsearch or OpenSearch.
- Exposure to container technologies, such as Docker, and container platforms (for example OpenShift).
- Experience contributing to or working with open-source software projects.
Skills
- Python, Flask, JavaScript, React, Git skills are required.
- PostgreSQL, Elasticsearch/OpenSearch skills are advantageous.
- Docker, OpenShift skills are advantageous.
- Experience working on open source projects is advantageous.
- 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 Engineering (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-November-2026.
Job reference: IT-CA-IR- -GRAE.
Field of work: Software Engineering and IT.
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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