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X721, a human adventure built around an innovative concept!
Together, let's redefine technological limits and turn complex challenges into industrial impact.
Careers
X721, a rapidly expanding deep tech startup, designs and develops
next-generation stratospheric vehicles.
Our goal: to transform access to very high altitudes (VHA) by creating sustainable, autonomous, and green platforms at the cutting edge of innovation.
Joining X721 means investing yourself at the heart of an innovative project within a stimulating, human-centered work environment with real opportunities for growth.
Our difference : Thinking differently
Our Soft skills : Pushing technological boundaries
to make the impossible achievable
At X721, we aren't just looking to grow—we're aiming for the stratosphere!
To reach that altitude, we need talented people.

@Droits réservés (DR)
X721 FRANCE IS HIRING
X721FR Recrute
Recently established in Nouvelle-Aquitaine, the subsidiary X721 France is expanding its team of technical engineers for its Heliblade project.
It is currently hiring at its Bordeaux-Mérignac location:
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Aerodynamics Engineer
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Embedded Software Architect Engineer
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Flight Control Engineer
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Electrical Engineer
Join X721 France, a fast-growing company!
📨Submit your application
OUR VALUES

Responsabilities:
Be able to work with a high degree of independence and demonstrate a strong commitment to carrying out our assignments.

Adaptability:
Comfort with uncertainty, changes in strategy, and prioritizing rapid learning through failure.
("Fail Fast, Learn Faster")

Respect:
Respect colleagues, partners, and decisions made. Adhere to the code of conduct and the company culture.

Team Spirit:
A core value at X721. Being willing to go beyond your job description to lend a hand with other urgent company matters and support your colleagues on a daily basis.
Latest Careers
Offres Emploi
Aerodynamics Engineer
Wing System Design (F/M):
This position covers architecture, aerodynamics, structure, and the integration of batteries, photovoltaic cells, propulsion, flight controls, and interfaces with other subsystems.
The design will rely heavily on numerical modeling, multiphysics simulations, and artificial intelligence tools.
Job Description
🎓 Engineering degree or Master/PhD in Aerospace,
Space, Mechanical Engineering, or related fields
⌛ 3-5 years
📄 Permanent contract
📍 Bordeaux-Mérignac
Flight Control Engineer
Stratospheric Drone (F/M):
This position involves the development of control laws, real-time software architecture, state estimation, distributed coordination, mission management, health monitoring, and FDIR.
Job Description
🎓 Engineering degree in Control Systems, Aerospace,
Robotics, Embedded Software, or equivalent field
⌛ 3-5 years
📄 Permanent contract
📍 Bordeaux-Mérignac
Embedded Software
Architecture Engineer (F/M):
The position covers software architecture, real-time services, system interfaces, operational safety, and Digital Twin development.
Job Description
🎓 Engineering degree in Computer Science, Embedded
Software, Real-Time Systems, Robotics, or Aerospace
⌛ 3-5 years
📄 Permanent contract
📍Bordeaux-Mérignac
Electrical Ingeneer
Stratospheric Drone (F/M):
This position covers the drone’s entire power system: high-density batteries, flexible solar panels, power conversion, thermal management, and integration into very thin composite structures.
Job Description
🎓 Engineering degree or Master/PhD in Electrical
Engineering, Electronics, Energy, Power Electronics
⌛ 3-5 years
📄 Permanent contract
📍 Bordeaux-Mérignac
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