eVTOL Rotor Design Engineer

EvTOL Mid-level (L4 equivalent) 2-5 years

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Joby Aviation

Archer Aviation

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Vertical Aerospace

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The job description

Tech stack. rotor blade design, airfoil selection, blade element momentum theory, XROTOR, CAMRAD, composite blade structures, hover performance analysis, whirl flutter

About the role

You will join an eVTOL aircraft company to design the rotor and propeller blades themselves, the airfoils that convert motor torque into lift and thrust. While the propulsion team owns motors and inverters, you own the blade: planform, twist, airfoil sections, and the composite structure that must survive centrifugal loads and fatigue. Your blades determine hover efficiency, cruise performance, and a large share of the aircraft's acoustic signature, and they are among the most safety-critical parts on the vehicle. You will work between the propulsion team's motors and the aerodynamicists' performance targets, owning the component where those worlds meet, and your blades will spin on every flight the aircraft ever makes.

What you will achieve

Design rotor blades from planform through detailed laminate definition, delivering hover figure of merit that meets or beats program targets.
Optimize blade twist and airfoil selection across the operating envelope, balancing hover efficiency against cruise performance and stall margin.
Prove blade structural integrity through analysis and test, clearing centrifugal, fatigue, and damage tolerance requirements with margin.
Characterize and mitigate whirl flutter and blade dynamics issues through analysis and ground testing before they appear in flight test.
Deliver blades that are manufacturable at rate, working with the manufacturing team to keep tolerances achievable without performance loss. You support first article qualification with analysis that predicts test outcomes before hardware is even built.

What you will bring

Must-haves

2 to 5 years designing rotor blades, propellers, or fan blades for rotorcraft, aircraft, or wind energy with tested hardware.
Strong grasp of blade aerodynamics, including blade element momentum theory and airfoil selection for low Reynolds number operation.
Experience with rotorcraft analysis tools such as CAMRAD, XROTOR, or equivalent comprehensive codes.
Understanding of composite blade structural design and the fatigue environment blades live in, including damage tolerance.
Familiarity with rotor dynamics, including whirl flutter, ground resonance, and blade mode placement.
Ability to work from aerodynamic design through structural detailing to qualification test without handoff gaps.

Nice-to-haves

Experience with blade manufacturing processes such as filament winding or bladder molding.
Background in icing effects on rotor performance and ice protection approaches.
Knowledge of blade acoustic design for noise reduction.
Familiarity with health monitoring techniques for in-service blades.