Nanofabrication Engineer

Role Summary

We are hiring a Nanofabrication Engineer to lead hands-on process development for our photonic modulators. This role requires deep semiconductor manufacturing expertise, flexibility to adapt quickly, and close collaboration with technicians and engineers. You will drive nanofabrication efforts in-house while also ensuring that internal processes are aligned and integratable with external foundry runs.

Key Responsibilities

• Plan, execute, qualify, and troubleshoot nanofabrication processes in the cleanroom, including lithography, etching, thin-film deposition and characterization.

• Perform hands-on troubleshooting and root cause analysis of process deviations, driving solutions for yield and performance improvements.

• Develop clear, reproducible process documentation and specifications suitable for handover to external partners, foundries, or internal prototyping lines

• Execute and manage related projects, ensuring timely delivery and alignment with technical and business objectives.

Required Qualifications

• Extensive technical experience in lithography, dry/wet etching, thin-film deposition, and metrology.

• Comfortable collaborating with technicians in a shared lab environment on a daily basis and with technicians and engineers along the entire value chain.

• Proven ability to take a process from development to a reproducible handover.

• Strong problem-solving skills and willingness to pivot or iterate quickly based on results and evolving project needs.

Preferred Qualifications

• Demonstrated experience with at least one full process flow from development through to prototyping or pilot production.

• Experience developing fabrication processes for photonic or semiconductor devices.

• Familiarity with design-for-manufacturability (DFM) in photonic ICs.

• Prior experience working in a startup or small R&D team environment.

• German is a plus

At Polariton, you will join a pioneering company leading the development of photonic integrated circuits,  an emerging technology shaping the future of ultra-fast communications.

We offer the structure and focus of a high-performance team, combined with the flexibility to work autonomously and take initiative. Our flat hierarchy and short decision-making cycles mean your contributions will be noticed and valued from day one. As we scale, so do the opportunities—for learning, growth, and career progression.

If you are looking for a role where your technical skills can drive tangible results, and where you can help shape both processes and products in a fast-moving deep-tech environment, Polariton offers a unique and rewarding next step.