Senior Mechanical Engineer

Ready to make connectivity from space universally accessible, secure and actionable? Then you’ve come to the right place

E-Space is bridging Earth and space to enable hyper-scaled deployments of space-powered Internet of Things (IoT) solutions and services. We are fundamentally changing the design, economics, manufacturing, coverage limitations and service deliveryassociated with traditional satellite and terrestrial IoT systems.

By building a highly-advanced low Earth orbit (LEO) space system—with a unique antenna design, highly sustainable spacecraft system and low-cost, small portable end-user devices—we can extend global satellite coverage, capacity and connectivity beyond legacy space services to provide a new kind of IoT platform that lets users sense, track, connect and act on information gathered, anywhere.

We’re intentional, we’re unapologetically curious and we’re 100% committed to saving space, protecting our planet and turning connectivity into actionable intelligence.

Why this role is important

E-Space is building a next-generation LEO satellite constellation. At the heart of our technology are high-precision free-space optical systems designed to operate in demanding space environments. We are looking for a seasoned mechanical engineer to own the mechanical development of these systems from concept through to flight.

You will lead opto-mechanical development for our space products, collaborating closely with Optics, Thermal, Electronics, Systems, AIT, and Manufacturing teams. You will work directly with suppliers and fabrication teams — embodying a design-to-manufacturing mindset — and will take designs from early engineering units through to flight hardware. The successful candidate will be based at our Toulouse, France office.

What you’ll be doing

• Design high-precision opto-mechanical assemblies using CAD and FEM tools, with a focus on active and passive optical alignment.
• Perform mechanical and thermo-mechanical analyses for high-precision assemblies under space environmental loads (vibration, shock, thermal, TVAC).
• Own designs end-to-end — from engineering units to flight hardware — including assembly fixtures, pre-assembly quality checks, and metrology plans.
• Support fabrication, assembly, and testing of flight builds, including hands-on cleanroom integration for small-volume production.
• Drive design-for-manufacturing decisions through close collaboration with CNC machining suppliers, identifying process opportunities and risks early.
• Contribute to cross-functional design reviews and represent the mechanical subsystem at program milestones.

What you bring to this role

• Master's degree in Mechanical Engineering or equivalent.
• 10+ years of experience in mechanical and opto-mechanical engineering for space applications.
• Proficiency in 3D CAD tools (CATIA, SolidWorks, or equivalent) and FEM/structural analysis software.
• Experience designing for active and passive optical alignment systems.
• Hands-on experience working with CNC machining suppliers and familiarity with precision manufacturing processes.
• Track record of delivering in fast-paced, cross‑functional engineering environments.

Bonus points

• Experience qualifying hardware for satellite environmental constraints (vibration, shock, thermal cycling, TVAC, cleanliness).
• Experience with precision mechanical integration in a cleanroom environment for low-volume production.
• Familiarity with satellite AI&T workflows and integration campaigns.
• Experience with optical simulation tools such as Zemax OpticStudio.

Why E-Space is right for you:

We want you to make the most of your journey at E-Space. That’s why we support and invest in the physical, emotional and financial well‑being of our team members and their families. Some of what you can expect when working at E-Space:

• An opportunity to really make a difference
• Sustainability at our core
• Fair and honest workplace
• Innovative thinking is encouraged
• Competitive salaries
• Continuous learning and development
• Health and wellness care options
• Financial solutions for the future