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Lead End-to-End Performance Engineer

Posted 21 Oct 2026
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Work experience
4 to 25 years
Full-time / part-time
Full-time
Job function
Degree level
Required languages
English (Fluent)
French (Fluent)
Deadline
7 November 2026

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Description

Lead End-to-End Performance Engineer, reporting to SAGA Project Manager within the RNC Projects Department in the Directorate of Resiliance, Navigation and Connectivity.

The SAGA Project aims to develop and deploy an end-to-end space mission for Quantum Key Distribution. The project focuses on the development of critical QKD technologies by European industry up to preliminary service validation, which will become the EuroQCI 1st Generation component (space and related ground/user segment) and shall help to prepare for a EuroQCI operational system definition.

  • Workplace: Noordwijk, NL
  • Location: ESTEC, Noordwijk, Netherlands
  • Type of Appointment: 4 years, extendable to indefinite
  • Grade Band: A2 - A4

Duties

Your tasks and responsibilities will include:

  • manage the overall end-to-end system performance of the SAGA mission in close co-operation with industry;
  • lead the definition of all mission and system requirements, including external and internal (between segments) interface requirements, and allocating segment requirements;
  • monitor the traceability of requirements from user/service, to mission, to system, to segment and down to equipment/payload level;
  • manage performance models to estimate system-level performances of the SAGA mission (space, ground and user segments);
  • monitor and maintain the system level and segment performance budgets in line with SAGA mission requirements and space segment design during all mission phases;
  • monitor industrial development and verification activities to ensure proper verification including resolving non-conformances; supporting the assessment of deviations, waivers;
  • moordinate with PA, Space Segment, Payload & User segment and Security leads during development, integration and testing activities for the resolution of activity deviations;
  • provide regular reporting to project management on all aspects of competence, identifying risks and problem areas and proposing mitigation actions, where appropriate;
  • contribute to the management of the schedule and propose schedule risk mitigation actions within the area of responsibility;
  • monitor the industrial preparation for in-orbit spacecraft commissioning and service provision in collaboration with project teams and ground teams, as necessary;
  • potentially assuming responsibility, delegated from the SAGA Project Manager, for programmatic aspects, and directly interacting with delegations and partners as required;
  • lead a team of engineers and specialised engineering support from the ESA Technology, Engineering, Quality and Operations Directorates.

Technical competencies

  • Multi-disciplinary and comprehensive knowledge of equipment, subsystem, satellite and overall mission requirments definiton, design and development
  • Experience with system level Assembly Integration & Test
  • Knowledge of ESA procurement processes
  • Understanding of industrial costs, schedule and project risk management processes

Behavioural competencies

  • Result Orientation
  • Operational Efficiency
  • Fostering Cooperation
  • Relationship Management
  • Continuous Improvement
  • Forward Thinking

Education and professional experience

A master’s degree in a relevant engineering discipline is required for this post together with 4 years of relevant professional experience. Alternatively, candidates with a bachelor’s degree, complemented by an additional four (4) years of relevant professional experience can be considered.

Additional requirements

Relevant previous project experience and, in particular, technical competence in Optical and/or QKD technology is a distinctive asset

You should have the ability to adapt to new working methods and environments. You must be able to build efficient working relationships, communicate effectively and contribute to fostering positive attitudes to change and, thus, to the success of an innovative programme.

In addition, you should have:

  • strong result orientation with the ability to set priorities and present practical solutions both orally and in writing;
  • strong problem-solving skills to deal with day-to-day challenges proactively and constructively;
  • the ability to anticipate risks and identify the need for additional expert support in a timely manner;
  • understanding of and experience in tailoring space standards;
  • the ability to manage challenging situations proactively and constructively and to be customer-focused.

An experience in diverse functional areas relevant to ESA activities is an asset.

In principle, recruitment will be within the advertised grade band (A2-A4). However, if the selected candidate has less than four years of relevant professional experience following the completion of the master’s degree, the position may be filled at A1 level.

Applicants must be eligible to access information, technology, and hardware which is subject to European or US export control and sanctions regulations & eligible to acquire the security clearance by their national security administrations.

Successful candidates will need to undergo basic screening before appointment, which will be conducted by an external background screening service, in compliance with the European Space Agency's security procedures.

Note that ESA is in the process of transitioning to a Matrix setup, which could lead to organisational changes affecting this position.

Nationality and Languages

Applications are only considered from nationals of one of the following States: Austria, Belgium, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Slovenia, Spain, Sweden, Switzerland, the United Kingdom and Canada, Cyprus, Latvia, Lithuania and Slovakia.

The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset.

The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.

Aerospace & Defence
Noordwijk
4,000 employees