Full-Stack Software Engineer

The CERN Document Server (CDS) is CERN’s institutional repository dedicated to archiving, preserving, and disseminating research outputs. As a Graduate, you will develop and maintain web applications using Python and React, contributing to the next-generation platform to support researchers in managing and sharing their work.

Responsibilities

• Develop and maintain web applications using Python on the backend and React on the frontend and implement new features to support 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.

Requirements

• You are a national of a CERN Member State or Associate Member State, excluding Pakistani and Lithuanian nationals for 2026 start date.
• By the application deadline, you have a maximum of 2 years of professional experience since graduation in the respective field.
• Your highest educational qualification is either a bachelor’s or master’s degree; you must have a university degree and cannot hold a PhD.
• You have never had a CERN fellow or graduate contract before.
• Experience with Python and web application development (e.g., Flask or similar frameworks).
• Basic knowledge of JavaScript and modern web interfaces (e.g., 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 (e.g., OpenShift).
• Experience contributing to or working with open-source software projects.
• Your studies focused on Software Engineering.

Skills

• Python Development
• Web Application Development
• Flask
• JavaScript Programming
• React Library
• Version Control with Git
• Code Maintenance
• Relational Databases
• PostgreSQL
• Search Technologies
• ElasticSearch
• OpenSearch
• Container Technology
• Docker Containers
• OpenShift
• Open-source Contribution
• Software Engineering

Languages

English, French