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Systems Engineer - Small Satellite Missions

Alén Space

Alén Space

Software Engineering
Pontevedra, Spain
Posted on Feb 13, 2026

Join our team and build the furure of space technology

We´re expanding our team at Alén Space, and are looking for a Systems Engineer - Small Satellite Missions; with passion in what you do, talented and experienced; to join our Space Missions area, specifically within the Systems Engineering team. The selected candidate will take on a central technical role in the definition and execution of space missions, contributing to the system-level design and ensuring technical coherence throughout the project lifecycle.

What you will be doing?

  • Supporting the definition and consolidation of mission requirements (MRD) and system requirements (SRD) in alignment with customer needs and mission objectives.
  • Designing and iterating mission architectures, ensuring subsystem compatibility, scalability, and alignment with performance, cost, and risk constraints.
  • Developing and maintaining the Concept of Operations (CONOPS) and defining operational modes (OpModes) to guide system behavior across mission phases.
  • Performing subsystem trade-off analyses to support selection and procurement of mission-specific equipment, both commercial and custom-developed.
  • Supporting launcher selection, including assessment of mechanical and electrical interface compatibility, volume constraints, and environmental requirements.
  • Supporting the definition and implementation of the system-level verification approach, including the creation and management of a Requirements Verification Matrix (RoD).
  • Coordinating closely with other internal teams—Mission Analysis, Communications & Data Handling, and Mechanical—to ensure system integration and coherence.
  • Acting as the technical focal point for assigned missions, interfacing with internal stakeholders, customers, and external partners throughout the project lifecycle.
  • Supporting commercial activities through technical inputs to proposals, in collaboration with the Product Owner, contributing to solution design and feasibility assessments.

What do we need in our team

  • A Bachelor’s or Master’s degree in Aerospace Engineering or a related discipline.
  • Between 2 and 4 years of relevant experience in system-level engineering for space missions, preferably in small satellite projects or within the New Space environment.
  • Proven experience in:
    Mission and system requirements engineering (MRD, SRD).
    Mission architecture design and subsystem definition.
    CONOPS and OpModes development.
    Verification planning and management (RoD).
  • Excellent communication, documentation, and coordination skills.
  • Fluency in English.
  • Ability to operate with high autonomy while maintaining alignment with overall mission goals.

Valuable knowledge:
  • Hands-on experience in nanosatellite development projects.
  • Familiarity with ECSS or NASA standards and processes.
  • Experience working with launch providers, including interface documentation and campaign preparation.
  • Involvement in proposal writing, particularly within competitive tenders or institutional frameworks (ESA, Horizon Europe, etc.).
  • Knowledge of Model-Based Systems Engineering (MBSE) or tools such as MagicDraw, Capella, SysML, or equivalent.

Candidate qualifications and skills

  • Work remotely a percentage of the time to be defined with the manager
  • Flexible start/finish times; reduced intensive working hours on Fridays and in summer Monday to Friday.
  • Competitive compensation with ongoing reviews, flexible compensation .
  • Wellbeing program: Health, dental, and accident insurance; free fruit and free lunch every friday and much more!
  • Personalized career plan development, training, and language learning support
  • Very committed to inclusion and diversity; we promote equal opportunities in recruitment

If you like what you read, then we might have a match. This is the culture we want to have and keep building. So, if that’s also your case, let’s get to know each other!

Ready to take on the challenge?

#LI-Hybrid #AlénSpace