Propulsion Engineer

Reposted 3 Days Ago
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Lausanne, Waadt, CHE
In-Office
Mid level
Artificial Intelligence • Computer Vision • Machine Learning • Robotics • Defense • Manufacturing
Building the Future of Autonomous Warfare. With Speed and Intelligence.
The Role
Design, build, and maintain motor test benches and Python-based tooling to run propulsion tests, analyze large datasets, visualize results, and report findings to R&D and manufacturers. Collaborate on platform design and ensure tools are robust and user-friendly across the organization.
Summary Generated by Built In
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

As the propulsion requirements of Harmattan increase, we are expanding our team to accelerate the development of critical hardware and software tools. You will join a high-impact, two-person team focused on building state-of-the-art motor test benches and the software infrastructure used to visualise and share results across the entire organisation. This is a practice-oriented role that bridges the gap between Python software development and physical hardware testing.

Responsibilities
  • System Development: Build and maintain the hardware motor test bench to measure motor, propeller, and controller performance.

  • Software Engineering: Develop and improve internal Python-based tools for propulsion testbench operations and data visualisation.

  • Data Analysis: Create scripts to calculate motor thrust requirements and manage large datasets to extrapolate performance across different hardware configurations.

  • Testing & Reporting: Execute motor tests, upload results to our cloud platform, and author technical reports for internal stakeholders and manufacturers.

  • Collaborative Design: Participate in design meetings for new platforms (e.g., fixed-wing observers), providing expertise on propulsion solutions to meet range and autonomy specifications.

  • Tool Democratization: Ensure internal visualisation tools are robust and user-friendly for the wider Harmattan team.

Candidate Requirements
  • Educational Background: Engineering degree (Master’s or equivalent) in Mechatronics, Programming, or a related field; self-taught learners with exceptional portfolios will be considered.

  • Technical Proficiency: Strong Python programming skills, specifically for data analysis, plotting, and sensor integration.

  • Domain Expertise: Practical understanding of propulsion physics and experience with electric propulsion systems or UAV environments.

  • Complex Project Management: Ability to autonomously implement important features and move testing platforms to a state-of-the-art level within the first 90 days.

  • Proactive Problem Solving: A critical thinker who identifies edge cases and bottlenecks rather than just following instructions.

  • Communication & Influence: Ability to guide R&D teams on requirements and speak effectively with manufacturers regarding prototype results.

  • Commitment: 100% dedication to Harmattan AI’s mission, thriving in a rapid prototyping environment where speed and methodical testing are equally vital.

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

Skills Required

  • Master's degree or equivalent in Mechatronics, Programming, or related engineering field (self-taught exceptional portfolios considered)
  • Strong Python programming skills for data analysis, plotting, and sensor integration
  • Practical understanding of propulsion physics and experience with electric propulsion systems or UAV environments
  • Experience building, maintaining, and executing tests on motor test benches and related hardware
  • Ability to autonomously implement features and advance testing platforms to state-of-the-art within 90 days
  • Experience managing large datasets, creating analysis scripts, and producing technical reports
  • Experience uploading and sharing test results via cloud platforms and creating user-friendly visualizations
  • Strong communication skills to guide R&D teams and interact with manufacturers regarding prototype results
  • Willingness to commit fully to a rapid prototyping, mission-focused environment

Harmattan AI Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Harmattan AI and has not been reviewed or approved by Harmattan AI.

  • Fair & Transparent Compensation Pay ranges are publicly shown for multiple U.S. roles (e.g., $140k–$200k base) and appear broadly in line with late‑stage startup/defense‑tech expectations based on the postings cited.
  • Equity Value & Accessibility Equity is repeatedly referenced in several job postings as part of total compensation, which can increase upside potential at a recently funded, high‑valuation company.
  • Strong & Reliable Incentives Sign‑on bonuses are explicitly mentioned in a hiring post for candidates who can start quickly, indicating the use of cash incentives in at least some hiring situations.

Harmattan AI Insights

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The Company
Paris, Île-de-France
131 Employees

What We Do

Harmattan AI is rising as a next-generation defense prime, building the future of autonomous warfare. We leverage AI-driven autonomy, real-time intelligence, and conflict-ready production to deliver attritable systems and autonomous mission management software. Designed for the real-world needs of warfighters, our solutions enable faster deployment, sharper decision-making, and battlefield dominance.

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