In detail you will:

Technical Ownership: Act as deltaVision’s subject-matter expert for electric machines. Define motor topologies, drive design decisions with Design-to-Cost in mind and build up our long-term motor know-how.
Electromagnetic & Thermal Sizing: Size BLDC and precision stepper motors from first principles and with numerical tools, from magnetic circuit and slot/pole selection to winding design and thermal budget. Turn repeated calculations into Python sizing tools.
Extreme-Environment Design: Adapt motors to cryogenic temperatures and vacuum: magnetic material behaviour at low temperature, insulation integrity, cryogenic bearing lubrication and heat rejection without convection.
Integrated Actuation: Package frameless stators and rotors directly into valve bodies, pump housings and mechanisms with our mechanical, systems and fluid engineers, and define drive and sensing requirements with our electronics team.
Build & Process: Drive prototype builds with external winding and manufacturing partners and in-house (assembly, potting, sub-components), then turn what works into a controlled, repeatable process.
Test & Qualification: Write test procedures and characterize your motors in our lab (back-EMF, cogging torque, torque-speed curves, step accuracy) through to qualification under cryogenic and vacuum conditions.

Degree in Electrical Engineering, Mechatronics, Mechanical or Aerospace Engineering or a related field, with a specialization in electrical machines.
3+ years of engineering experience in the electromagnetic and mechanical design of electric motors, ideally BLDC and stepper, including frameless and flanged configurations for integrated actuators.
Hands-on experience with motor sizing and simulation tools (e.g. Motor-CAD, MotorXP, Ansys Maxwell, JMAG, FEMM) or your own Python-based analytical models.
Good understanding of motor commutation, position sensing (Hall, resolver, encoder) and stepper drive behaviour.
Practical knowledge of motor manufacturing: laminations, custom windings, magnet retention and bonding, insulation classes, encapsulation and process control.
A hands-on mindset is mandatory: you inspect, assemble and troubleshoot hardware on the bench yourself, not only in simulation.
Motivated, pragmatic and self-organized. You prefer “done” over “perfect on paper” and lead motor development independently across teams.
Fluency in English; German is a plus.

What would make you stand out:

Experience with motors or actuators for space, aerospace or other extreme environments (cryogenics, vacuum outgassing, vibration)
Experience with motors or bearings operating at cryogenic temperatures
Familiarity with motor drive electronics (e.g. field-oriented control, microstepping) and controller testing
Experience with ECSS or comparable qualification frameworks

Immediate and flexible start
Permanent full-time position (40 h/week)
Attractive salary package
Start your “Side Quest”: We support passion projects – whether it’s building new tools, test stands, or prototypes outside your main scope.
Shape our growth: As a fast-scaling company, we offer the opportunity to actively build structures and define our future path.
30 days annual vacation and flexible working hours
Bike leasing, EGYM Wellpass and subsidy for the Deutschlandticket
Complimentary beverages, company events, and professional development opportunities