# Mechanical Engineer - GCS & Launcher at Harmattan AI

> Open job at Harmattan AI in Paris, France. Workplace: On-site.

Source: France Dev Jobs, https://francedevjobs.com/jobs/harmattan-ai-mechanical-engineer-gcs-5f3r5xi
Posted 10 July 2026. Last checked on the employer's career site: 10 November 2026.

## Facts

- Company: [Harmattan AI](https://francedevjobs.com/companies/harmattan-ai)
- Location: Paris, France
- Workplace: On-site
- Employment type: Full-time
- French: Not required
- Not mentioned in the job post: salary, visa sponsorship, relocation, where you can apply from

## Job description

#### 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.

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.

As a Mechanical Engineer on Harmattan AI's Ground Control Systems (GCS) team, you will own the mechanical design of next-generation GCS hardware from concept through mass production. This may include a premium drone controller for ISR missions, a long-range antenna system for multiple drone vectors, or an interceptor drone launcher box. You will work at the intersection of mechanical design, RF integration, and electronics packaging to deliver field-ready, defense-grade products.

**Responsibilities**

- **End-to-End Design:** Design and prototype drone controllers, antenna systems, and launcher enclosures from scratch—covering structural architecture, ergonomics, thermal management, and high environmental/waterproofing (IP rating) constraints.
- **Product Development:** Own full product development cycles end-to-end, translating operator needs into rugged, field-ready designs.
- **CAD Modelling & GD&T:** 3D model in SolidWorks, including complex surface modelling, and produce detailed 2D drawings with GD&T to meet strict functional and assembly requirements.
- **DFM/DFA:** Apply DFM/DFA principles systematically to minimise unit cost and assembly time at scale, collaborating closely with suppliers specialising in plastic injection molding, large-scale thermoforming, sheet metal/structural steel fabrication, CNC, and die-casting.
- **Simulation:** Run FEA (stress, deformation) and thermal simulations (CFD/steady-state) to validate design choices early and reduce physical prototype cycles.
- **Testing & Validation:** Conduct mechanical stress, failure analysis, and environmental testing to validate designs for extreme field conditions.
- **Cross-Functional Collaboration:** Collaborate daily with the Electronics and RF teams on PCB integration, internal routing, and RF constraints.
- **Supply Chain Partnership:** Partner with Supply Chain & Procurement on supplier qualification, cost targets, and the smooth transition from prototyping to mass production.
- **Documentation:** Maintain detailed documentation of designs, test results, and production workflows to support knowledge sharing and continuous improvement.

**Candidate Requirements**

- **Education:** Engineering degree in Mechanical Engineering, Mechatronics, Aerospace Engineering, or equivalent.
- **Experience:** At least one full product development cycle taken from concept to mass production.
- **Manufacturing Expertise:** Plastic injection molding experience with full DFM process and quality control; familiarity with CNC and die-cast molding.
- Experience with **sheet metal fabrication, heavy metallic structures** and **large-scale thermoforming** is highly desirable.
- **CAD Proficiency:** Advanced proficiency in SolidWorks, including complex surface modelling and 2D drawings with GD&T.
- **Prototyping & Integration:** Hands-on rapid prototyping experience (3D printing, CNC, etc.) and a proven track record of integrating embedded electronics into complex enclosures.**Nice to have:**
- Basic FEA (stress, deformation) and thermal simulation (steady-state, CFD) experience.
- Understanding of mechanical linkages and **actuator/cylinder kinematics** for deployment or launching mechanisms.
- Experience in defense, aerospace, UAVs, or high-end consumer electronics hardware.

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

## How to apply

Apply on the job page, https://francedevjobs.com/jobs/harmattan-ai-mechanical-engineer-gcs-5f3r5xi: its Apply button opens the employer's own application page.

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