Mechanical Design Intern
Role summary by JobGrid
Mechanical Design Intern at harmattan-ai in Paris, France, on-site, for an Intern role in Engineering, Manufacturing & Construction. JobGrid presents the role as a normalized record for comparison, keeps the employer description separate, and routes candidates to the original public application page with non-personal referral parameters. The posting was last checked on 2026-06-05; no salary was provided in the payload. This listing is part of JobGrid's Mechanical engineering jobs from public company career pages.
- Paris, France; on-site workplace; Intern seniority; Engineering, Manufacturing & Construction category.
- Source freshness is available: posted on 2026-06-05 and last checked on 2026-06-05.
- No salary field is present, so JobGrid does not add compensation context.
- JobGrid preserves the source boundary and shows normalized role facts rather than employer marketing text under the publisher value section.
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.
About the Role
We have well-scoped mechanical support for radio testing campaign — Casing, CNC factoring, validation tooling, documentation — more work than current bandwidth allows in our team.
As a Mechanical Engineering Intern, you will contribute to the mechanical design and optimization of a new military device, focusing on ruggedness, miniaturization, radio frequency isolation and thermal management.
Our team needs someone who is able to add immediate engineering capacity to a high-priority project: developing the first-generation casing of a military radio for rapid integration into future autonomous defense systems. While the workload is highly structured and well-bounded for mentorship, the ability to take full ownership of a physical deliverable is key.
The duration of this internship is 6 months.
Responsibilities
CAD Modeling: Develop precise CAD models for the external casing and internal component mounting to ensure optimal spatial integration (Shielding and thermal).
Simulation & Validation: Conduct structural and thermal Finite Element Analysis (FEA) to validate designs against operational stress and heat loads.
Environmental Sealing: Design and test robust sealing solutions to achieve the required IP ratings for dust and water protection.
Material Selection: Source and evaluate high-performance materials suitable for deployment in military and rugged environments.
Prototyping & Testing: Support the creation of physical prototypes and actively participate in environmental testing to verify field readiness (3D printing).
Bonus: Knowledge in RF design specific to radio electronics packaging, but not required.
Candidate Requirements
Educational Background: Currently in final or penultimate year of a Master’s degree in Mechanical Engineering, or a related field
Project Execution & Ownership: An adaptive learner with the ability to navigate tasks, offering creative solutions and collaborating effectively within a team to drive high-quality project results.
Adaptability & Mobility: Thrives under pressure in a fast-paced, dynamic environment; embraces a “no-task-is-too-small” mentality.
Communication & Influence: Excellent written and verbal communication, capable of leading diverse principals
Commitment: 100% dedication to Harmattan AI’s mission, vision, and ambitious growth plans, ready to go the extra mile to ensure operational excellence.
We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.