Celeres is a high-tech engineering company specialising in the design, integration and operation of complex, mission-critical systems and applications worldwide. We deliver turnkey projects, engineering services and advanced technological solutions across the Space, Aerospace, Energy, Scientific Facilities and Defence & Security sectors. Our end-to-end approach covers the entire system lifecycle, from initial design and development to validation, maintenance and obsolescence management. The role: With extensive experience in the space industry, Celeres develops launch vehicle systems, including the Ariane family, as well as Ground Control & Command systems for launchers and Earth observation satellites, serving both civil and military applications. We are looking for a Senior Engineer for Ground Segment Development to join our engineering team and contribute to the development of a mission control centre for a European spacecraft. In this role, you will be involved in the design, integration and configuration of space mission control and data preparation systems based on the EGS-CC (European Ground Systems – Common Core) architecture, supporting the monitoring and control of the spacecraft. Position activities:
• Your main responsibilities will include:
• System Integration & Configuration: Integrate, configure and customize EGS-CC components to develop mission-specific ground control systems (EGSE/MCS).
• Software Development & Extension: Develop custom adapters, plugins and extensions within the Java/OSGi framework to adapt EGS-CC functionalities to specific space mission requirements.
• Data Modelling: Define, validate and maintain mission database models using the EGS-CC Conceptual Data Model (CDM)



and Eclipse Modeling Framework (EMF).
• Verification & Testing: Perform Factory Acceptance Testing (FAT), Site Acceptance Testing (SAT) and end-to-end validation of mission control systems.
• Technical Documentation: Prepare and maintain design documentation, Interface Control Documents (ICDs), test plans and procedures in accordance with space software engineering guidelines.
• Technical Leadership & Mentoring: Act as a subject matter expert on EGS-CC standards and technologies, providing technical guidance to junior engineers and collaborating with ESA and industry consortium stakeholders.

Requirements:

Your profile
• Degree in Computer Engineering, Telecommunications Engineering or a related technical discipline.
• At least 5 years of professional experience in software engineering.
• Strong proficiency in Java development and component-based modular architectures using OSGi (Apache Karaf/Felix).
• Experience with Model-Driven Engineering, particularly Eclipse Modeling Framework (EMF), Eclipse RCP and XML/JSON data modelling schemas.
• Solid understanding of ECSS standards, particularly ECSS-E-ST-70-41 and Packet Utilisation Standard (PUS), as well as spacecraft telemetry and telecommand (TM/TC) processing.
• Familiarity with modern Web UI technologies,



including ReactJS, Redux and TypeScript.
• Experience with DevOps practices, Docker and CI/CD pipelines.
• Strong analytical and problem-solving skills, particularly when troubleshooting complex middleware and distributed software architectures.
• Ability to work effectively in multicultural, multi-company engineering teams and international project environments.
• High level of English (B2). Nice to have:
• At least 3 years of direct experience working with the EGS-CC kernel, EGS-CC web components or CDM modelling tools.
• Previous experience working on European space programmes.
• Knowledge of ground segment systems and spacecraft mission operations. What do

we offer
?
• Stability: A full-time position with a permanent contract.
• Challenging projects: The opportunity to work on cutting-edge technological projects with international impact.
• Work-life balance: Flexible

working hours
and a hybrid working model.
• Professional growth: Access to exclusive discounts on training programmes with UOC and opportunities for continuous learning and development.
• Flexible

benefits:
A Adaptable Compensation Plan tailored to your needs, including Ticket Restaurant and the option to purchase additional holidays.
• Wellbeing & workplace: Modern, well-connected headquarters in Barcelona, with a welcoming working environment and additional office perks. We are committed to equal employment opportunity regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, etc.

📌 Senior Engineer for Ground Segment development (Barcelona)
🏢 Celeres
📍 Barcelona