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Harmattan AI

GNC Engineer

Paris
Level
Mid
Work type
On-site · Paris

Not stated in the posting: salary, visa.

Open. First seen 2 October 2026.

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About the role

About Us

Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces.

Harmattan AI's standard text

Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected.

About the Role

As a GNC Engineer on the UAV team, you’ll design and develop advanced guidance, navigation, and control (GNC) solutions. From integrating and fusing sensor data to developing control laws and flight trajectories, you'll take your work from simulation to embedded implementation and ultimately to live flight testing.

Responsibilities

  • Develop state-of-the-art navigation and sensor fusion algorithms for UAVs
  • Design and implement GNC and flight control systems
  • Build filtering and estimation strategies for robust and efficient flight performance
  • Run extensive simulations (Monte Carlo, SITL, HITL) and coverage testing
  • Analyze test flight data and refine algorithmic performance
  • Support full-stack system integration: GNSS, INS/IMU, localization, and fusion
  • Maintain and evolve a flight-proven flight computer across multiple UAV platforms

Requirements

  • Education : Engineering school or master's degree in computer science, engineering, or a related technical field
  • 3+ years of experience in aerospace GNC systems
  • Strong foundations in control theory, estimation, and sensor integration
  • Proficient in Python and embedded C/C++
  • Experience with simulation tools (e.g., Gazebo) and version control (Git)
  • Familiarity with open-source autopilots (PX4, Ardupilot, Betaflight, etc.)
  • Hands-on electronics and integration skills: debugging, soldering, harnessing
  • Bonus: FPV pilot hobbyist
Harmattan AI's standard text

We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

What this role asks for

Particular to this role

C · Git

Rare in Harmattan AI's other 116 open postings.

Standard for software engineering roles

Python

Common in software engineering postings at any company.

79% of this description is written for the role. The rest is Harmattan AI's standard text, folded away below.

Read against Harmattan AI's other open postings on this site.

The team: R&D HIRES STEADILY

This role is one of 96 open in R&D. 37 were posted in the last 30 days and the oldest in January: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (39 of 96), C++ (38 of 96), Embedded Systems (37 of 96), C (17 of 96), Computer Vision (16 of 96), Linux (15 of 96), Machine Learning (14 of 96)

OTHER ROLES ON THIS TEAM

From the team and dates on Harmattan AI's own job board.

Salary context

8 other open postings titled GNC Engineer state a salary: median USD 125,000 to USD 190,500 a year.

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