System Engineer - Future System Architecture

Country/Region: FR

Connect with Eutelsat

Be part of a new era in communications, transforming connectivity with Eutelsat – the world’s first GEO-LEO integrated global satellite operator.

As a leader in satellite communications, we provide global connectivity solutions - connecting businesses, communities, and governments around the world. We can connect you at on land, at sea and in the air. We also deliver broadcast television channels and packages, transmitting vital news reports around the world.

With Eutelsat You’ll Get To:

• Pioneer the future of Space Technology

• Bring connectivity to remote frontiers

• Collaborate with customer-centric experts

• Embrace cultural diversity in our global team

In a dynamic industry where passion drives our teams to make a difference to become the most trusted partner for global satellite connectivity, you will elevate your skills in a stretching, rewarding, and meaningful environment. At Eutelsat, we’re united by inclusion and diversity, striving for gender balance and social responsibility, on Earth and in Space.

Why Eutelsat ?

• Commitment to Diversity & Inclusion: With colleagues from over 75 countries, we embrace our global DNA and are committed to creating an inclusive workplace. We are proud that one-third of our executive team and 60% of our board are represented by women.

• Ways of Working That Drive Us: As "One Team," we work collaboratively towards shared goals, with customer-centricity, respect, and inclusivity as our guiding principles.

• Sustainability at Our Core: At Eutelsat, sustainability is more than just a word; it’s woven into our strategy. We’re dedicated to balancing social, environmental, and economic growth — both on Earth and in space.

• Work-Life Balance: We offer flexible schedules and hybrid work options to help you balance your personal and professional life. At Eutelsat, we are committed to supporting your well-being and ensuring you have the flexibility you need to succeed both at work and at home.

Ready to grow with us? Apply today and help us build a more inclusive, sustainable future in the world of satellite technology

Job Overview

Join the Future System Architecture team and help shape next-generation satellite connectivity. As a System Engineer, you will design and integrate complex space systems combining space, ground, and mission segments. From concept to operational deployment, you will ensure technical consistency and performance across all domains.

This position requires eligibility for French national security clearance under Articles R.2311-1 and IGI 1300 SGDSN/PSE (August 9, 2021).

Who you are

You are an experienced system engineer with a strong background in satcom systems or other complex satellite system architectures, capable of driving end-to-end system design and bridging operational needs with technical solutions.

You thrive in multi-disciplinary environments and have a proven ability to manage complexity across multiple segments.

Deep expertise in satcom systems or other satellite applications

Strong understanding of system-level impacts and how they influence architecture choices.

Solid knowledge of network architecture and interoperability with mission systems.

Familiarity with constellation concepts and performance drivers for global service delivery.

Experience in military or defense programs and mission-critical environments is a strong asset.

Comfortable working in multi-disciplinary teams coordinating across payload, antennas, ground infrastructure, and mission planning.

Strong analytical skills and ability to translate operational needs into robust technical specifications for complex systems.

Collaborative mindset, able to engage effectively with internal teams, subcontractors, and customers.

What you will do

As a system engineer/architect for, your day-to-day will consist of:

Requirements & Architecture

Capture and formalize customer needs into system-level requirements.

Define technical impacts across space, ground, and mission segments.

Lead requirement allocation and ensure traceability.

Integration & Validation

Drive co-engineering workshops with stakeholders (payload, ground network, antennas, mission chain).

Oversee integration and verification activities (FlatSat, end-to-end IVV).

Perform architecture trade-offs and performance analysis (coverage, latency, throughput).

Compliance & Coordination

Ensure compliance with security and certification frameworks (DR-SF, ANSSI/DGA).

Act as technical interface with suppliers and subcontractors.

Support procurement processes and evaluate supplier compliance.

Innovation & Documentation

Produce high-quality technical documentation (ICD, CONOPS, system specs).

Contribute to optimization roadmaps and integrate new technologies.

Provide technical expertise and training to customer-facing teams.

What you will need

Degree in Aerospace Engineering, Telecommunications, or related field.

5–10 years of experience in space system engineering (LEO experience is a plus).

Fluency in French and English (mandatory).

Strong analytical and problem-solving skills.

Ability to work across all engineering phases: requirements, design, integration, validation, operations.

Experience in multi-stakeholder coordination and cross-functional teams.

French nationality required for security clearance.

What We’d Love

Additional skills that will make you stand out:

Hands-on experience with satellites systems (RF systems, antenna integration, Operations)

Familiarity with satcom protocols (DVB-S2X, CCSDS) and cellular standards (3GPP LTE, 5G).

Proficiency in modelling and simulation tools for system performance analysis.

Programming and automation skills (Python, C/C++, MATLAB) for design and integration workflows.

Knowledge of cybersecurity principles for critical infrastructure.

Experience in innovation projects or advanced space applications.

Experience in military or defense programs and secure environments.

Where You’ll Work:

Issy les Moulineaux, Paris, France.

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This role is a Eutelsat job opening; all of our open roles are posted on the current OneWeb and Eutelsat websites. Please note that when you are applying, your application may be seen by both teams.