Full-Stack Developer

Job Posting Organization:
CERN, the European Organization for Nuclear Research, is a leading research institution established to push the frontiers of science and technology. It is known for its groundbreaking work in particle physics and has been a hub for innovation since its inception. CERN employs a diverse workforce of professionals from various fields, including engineering, technical, scientific, and administrative roles. The organization operates in multiple countries and is committed to fostering an inclusive environment where collaboration and innovation thrive. CERN's mission is to uncover the fundamental nature of the universe, and it values diversity as a core principle in achieving its goals.

Job Overview:
The Full-Stack Developer position at CERN's Engineering Information Management group involves designing, developing, and maintaining software solutions that support critical engineering and information management processes. The role is essential for enabling domain experts to evaluate intervention risks and manage access to CERN's facilities, which is crucial for the safety of thousands of individuals who rely on these systems daily. The applications developed in this role utilize a modern technology stack, including React, Java Spring Boot, Oracle, and BPMN, and are built within an Agile framework that emphasizes quality communication and user engagement. The ideal candidate will be passionate about software development and eager to contribute to a world-class research environment, where they will collaborate closely with engineers and IT specialists to gather requirements and implement effective solutions.

Duties and Responsibilities:
The Full-Stack Developer will be responsible for developing and maintaining applications using Java, React, and Oracle technologies. Key responsibilities include collaborating with engineers and IT specialists to gather requirements, ensuring software quality through rigorous testing, debugging, and performance optimization, and actively participating in Agile development practices within a fast-paced team. The role requires a proactive approach to problem-solving and a commitment to learning processes specific to CERN, such as safety and access protocols. Additionally, the developer will be expected to contribute to the continuous improvement of the software solutions and engage with users to understand their needs better.

Required Qualifications:
Candidates must have experience in developing web applications using modern front-end technologies such as React, Angular, or Vue JS, along with a solid understanding of Java for back-end development. Familiarity with Oracle databases is essential, and strong problem-solving skills are required. The ability to work collaboratively in an international environment is crucial, as is a desire to learn about CERN's specific processes. Experience with Business Process Model and Notation (BPMN) is considered a plus. Candidates must also demonstrate a commitment to learning French, in addition to having strong spoken and written English skills.

Educational Background:
Applicants must hold a Bachelor's or Master's degree in Computer Science, Electrical Engineering, or a related field. It is important that candidates have graduated within the last two years and have not previously held a CERN fellow or graduate contract. Those without a university degree or with a PhD are not eligible for this position.

Experience:
The position requires a maximum of two years of professional experience since graduation. This experience should be relevant to the development of web applications and demonstrate the candidate's ability to work effectively in a software development environment.

Languages:
Fluency in spoken and written English is mandatory for this position. Candidates are also expected to have a commitment to learning French, which is considered beneficial for effective communication within the organization.

Additional Notes:
The contract duration for this position is 24 months, with the possibility of extension up to a maximum of 36 months. The working hours are set at 40 hours per week, and the position is fully onsite at CERN in Geneva. The target start date for the role is January 1, 202

• The job reference for this position is EN-IM-CAP-2026-245-GRAE. Compensation includes a monthly net stipend ranging from 5266 to 5793 Swiss Francs, depending on the candidate's degree. Additional benefits include 30 days of paid leave per year, comprehensive health insurance coverage for the employee and their family, and a relocation package based on individual circumstances. On-the-job and formal training opportunities, including language classes, are also provided.