Full-Stack Software Engineer (Java, JavaScript) (EN-IM-AMMLD)

Introduction

• Join the team behind CERNs Asset and Maintenance Management Platform a cornerstone system managing over 3 million assets 24/7 across one of the worlds most complex research infrastructures.
• Work in an Agile DevOps-oriented environment collaborating with experts in software engineering data management and operations to continuously improve critical enterprise systems.
• Full-stack development enterprise applications Java/Spring and React frameworks RESTful integrations HxGN EAM DevOps and Agile practices user experience design data integrity cybersecurity scalability and performance are just a few of the keywords related to this position.

Functions

• Participate in software design system architecture and integrations with enterprise applications.
• Take responsibility for implementing modern high-performing and responsive web applications as well as robust backend services.
• Conduct and coordinate code reviews testing monitoring and general system management tasks including configuration and deploying upgrades and patches.
• Document your work and progress to facilitate teamwork and enhance software maintainability.
• Liaise with users to transform their expressed needs into application requirements and design specifications.
• Take an active role in the continuous effort to improve both the services and tools provided including user support and documentation.
• Coach and guide junior developers in the team ensuring continuous follow-up and training.

Qualifications :

Masters degree or equivalent relevant experience in the field of Software Engineering or a related field.

Experience:

• Proven track record in designing and developing applications using the Spring ecosystem and/or the Java EE platform.
• Extensive expertise in web technologies including JavaScript HTML5 and CSS and a clear understanding of how these technologies interact complemented by experience with modern libraries for building user interfaces with a preference for React.
• Hands-on experience in requirements analysis software design and system architecture.
• Proficiency in designing implementing and utilising web services (SOAP/REST) for system integrations.
• Experience applying Agile methodologies and employing DevOps practices throughout the development process.
• Experience in coaching or guiding junior team members to support their growth and productivity.

The following experience will be considered an asset:

• Working knowledge of relational databases.
• Development experience and in-depth knowledge of a major EAM platform preferably HxGN EAM.
• Business analysis experience within the IT field.
• Expertise in machine learning algorithms methodologies and frameworks.

Technical competencies:

• Knowledge of programming techniques and languages: including Java (Spring ecosystem) JavaScript React (or similar) HTML5 SQL Git and Maven.
• Testing diagnosing and optimisation of software: including proactive monitoring system customisation applying patches and managing major system upgrades.
• Re-use refactoring integration and porting of existing software: with a focus on defining and managing interfaces particularly through web services.
• Conceptualising designing and developing user experiences and interfaces: based on expressed user requirements and complex workflows.
• Knowledge of best practices for developing secure software: including modern authentication and authorisation protocols ensuring robust and secure system access.

Behavioural competencies:

• Working in Teams: working well in groups and readily fitting into a team; participating fully and taking an active role in team activities.
• Learning and Sharing Knowledge: sharing knowledge and expertise freely and willingly with others; coaching others to ensure knowledge transfer.
• Achieving Results: delivering high quality work on time and fulfilling expectations.
• Managing Self: working well autonomously; taking on activities and tasks without prompting.

Language skills:

Spoken and written English with a commitment to learn French.

Additional Information :

Eligibility and closing date:

Diversity has been an integral part of CERNs mission since its foundation and is an established value of the Organisation. Employing a diverse workforce is central to our success. We welcome applications from all Member States and Associate Member States.

This vacancy will be filled as soon as possible and applications should normally reach us no later than 04.01.2026 at 23:59 CET.

Employment Conditions

Contract type: Limited duration contract (5 years). Subject to certain conditions holders of limited-duration contracts may apply for an indefinite position.

Working Hours: 40 hours per week

Job Flexibility: Hybrid

This position involves:

• Work during nights Sundays and official holidays.
• Stand-by duty when required by the needs of the Organisation.

Job grade: 6-7

Job reference: EN-IM-AMMLD

Field of work: Software Engineering and IT

Benchmark Job Title: Computing Engineer

Remote Work :

No

Employment Type :

Contract