The Mechanical Design Engineer will be a member of the hardware team responsible for the mechanical design of our Quantum Key Distribution (QKD) systems.
Tasks will include designing custom 19-inch rack-mounted enclosures (sheet metal), the internal mechanical parts that carry our boards and optics, and housings for internal modules.
You will take designs from concept through 3D CAD, design-for-manufacture, prototyping, fabrication, and integration, working hands-on with sheet-metal and CNC suppliers.
Designing custom 19-inch rack-mounted enclosures: folded sheet-metal parts with correct bend allowances and DFM, front and back panels, and rack mounting.
Designing internal mechanical parts
mounting trays, brackets, and mounts for boards and subsystems.
Designing CNC-milled housings and parts for internal optical and electronic modules.
Producing complete manufacturing drawing packages and BOMs; selecting and managing sheet-metal and CNC suppliers, and potentially working with external design houses and ODMs.
Driving prototype builds, fit-checks, and design iterations through to production readiness.
Supporting EMC and compliance through sound mechanical design (gasketing and grounding/bonding provisions) and pre-compliance, together with the electronics team and external test labs.
Collaborating with optics, electronics, FPGA, and software teams on mechanical interfaces, envelopes, and mounting.
Authoring drawings, tolerance analyses, and change logs; maintaining records.

Degree in Mechanical Engineering or a related field, with proven experience designing mechanical hardware and enclosures for instrumentation or telecom/datacenter products (typically 3+ years)
Sheet-metal design (folded/bent parts, bend allowances, DFM) and CNC-machined part design (DFM for milling, fits, tolerances, finishes)
Hands-on experience designing 19-inch rackmount enclosures
A hands-on prototyping mindset and the ability to collaborate across optics, electronics, and systems engineering
Proficiency in written and spoken English
Ability to be on-site in our Munich or Potsdam offices to work with hardware, when required
Applicants must have the right to work in Germany at the time of application. We do not provide visa sponsorship.
Must be eligible to obtain and maintain either (a) a U.S. Secret (or higher) security clearance or (b) an EU SECRET (or national equivalent) personnel security clearance. Employment is contingent on meeting applicable government security requirements; eligibility is determined by the competent authorities.
Good to have:
Experience with tamper-resistant, secure, or defense-grade enclosures
Industrial-design sensibility and premium product finishing (anodizing, custom front panels)
Awareness of EMC/EMI gasketing and shielding

An opportunity to work with some of the brightest minds in the pioneering field of Quantum Technologies as well as an experienced and progressive Leadership team
Gain knowledge of some of the most cutting-edge technology developments in science & engineering
A chance to be part of one of Europe’s leading technology firms of the upcoming decades
Welcoming, friendly, and professional colleagues
A personal development plan with clear goals for advancement
A competitive salary
Flexible working arrangements
A diverse and supportive atmosphere, where innovation and initiative are encouraged

Mechanical Design Engineer

Key skills