Harmattan AI is seeking an Aerodynamic Engineer to help design, validate, and continuously improve the flight physics of our UAV and eVTOL platforms. You'll work across the full loop — from conceptual aerodynamic design and simulation, through physical testing, to the Python tooling that ties it all together — collaborating closely with the Mechanical and GNC teams.

Responsibilities

Aerodynamic Design & Analysis: Contribute to the aerodynamic layout and analysis of fixed-wing, multicopter, and eVTOL configurations, moving fluidly between low-fidelity methods (XFoil, OpenVSP, AVL) and higher-fidelity CFD depending on the stage of the design.
Testing & Validation: Support flight test and/or wind tunnel campaigns — helping define test cards, instrument prototypes, and run experiments — to validate simulation predictions against real-world data.
Python Tooling & Automation: Write Python to automate analysis workflows, process test/flight data, and connect design and simulation tools together into a smoother end-to-end pipeline.
Aero Database Generation: Generate and maintain aerodynamic databases and stability derivatives that the GNC team relies on for control law development and autopilot tuning.
Cross-functional Collaboration: Work closely with the Mechanical and GNC teams throughout the design cycle to make sure aerodynamic choices stay feasible, stable, and testable in practice.

Requirements

Education: B.S. or M.S. in Aerospace Engineering, Aeronautical Engineering, or a related field, with coursework or project experience touching aerodynamics or flight mechanics.
Aerodynamics & Flight Dynamics Knowledge: Solid grasp of aerodynamic fundamentals (lift, drag, stability) and flight dynamics, with enough intuition to reason about a design's behaviour before running a full simulation or test.
Python Proficiency: Comfortable scripting in Python (NumPy, SciPy, Pandas) to process data, automate repetitive analysis, and glue together different engineering tools.
Simulation or Testing Exposure: Hands-on experience with at least one side of the validation loop — either aerodynamic simulation (CFD, XFoil, OpenVSP, AVL) or physical/experimental testing (wind tunnel, flight test, prototyping).
CAD Familiarity: Comfortable navigating and making basic edits in SolidWorks or CATIA, enough to understand geometry constraints and communicate effectively with the Mechanical team.
Pragmatic, Hands-on Mindset: Happy moving across the full design-to-validation loop rather than staying in a single niche, and comfortable working in a small, fast-moving team.

Nice to have

French language skills.
Hands-on experience building or flying RC aircraft/drones.
Propeller design and integration with the airframe.
Aeroacoustics.