At LIGENTEC, we aren’t just following the roadmap of the Industrial Revolution 4.0; we are writing it. Based in the vibrant EPFL Innovation Park, we specialize in ultra-low loss Photonic Integrated Circuits (PICs) that power the world’s most advanced Quantum, LiDAR, and Space technologies.

To support our continued growth, we are looking for a: Fabrication Engineer

Tasks

About the Job

We are entering a breakthrough phase in high-speed modulation. By integrating electro-optic materials like thin-film lithium niobate onto our SiN platform, we’ve achieved record-breaking results. As our new Fabrication Engineer, you will be the bridge between R&D innovation and production-ready reality. You will:

• Execute prototype and small-scale fabrication runs for photonic integrated circuits in all technical areas (lithography, thin film, etching, characterization and back-end)
• Document quality errors and plan the corrective actions.
• Contribute to process improvement projects to improve yield and reduce defects of released processes and processes in development.
• Contribute to new equipment/process validation
• Responsible for the statistical process control (SPC) data collection.
• Contribute to SOPs maintenance and creation
• Interact with equipment engineers at CMI for smooth fabrication of the runs Support the training and knowledge transfer to new team members

Requirements

What You Know

You are a specialist who thrives in the microscopic world, blending a deep understanding of physics with the precision of semiconductor manufacturing.

• Education: A technical degree (MSc or PhD) in Electrical, Physical, or Nano Engineering.
• Clean Room Mastery: Few years of hands-on experience with Lithography, Dry Etching, PVD, or CVD.
• Bonding Expertise: Big plus if proven experience in wafer or die bonding technologies.
• Maturity Mindset: Experience in increasing process maturity (moving from R&D to Pilot Line/Production) is a significant advantage.

Who You Are

Technology moves fast, but you move faster. We are looking for a teammate who brings more than just a certificate to the table.

• A Process Enthusiast: You don't just work in a clean room; you have a genuine passion for the processing environment and the "magic" of fabrication.
• A Critical Thinker: You are open-minded but analytical, always questioning "how can we make this more stable?"
• Solution-Oriented: When a fabrication run hits a snag, you focus on the fix, not the fault.
• A Global Communicator: You enjoy a collaborative, international environment and possess working proficiency in English (French is a plus).

Benefits

The Icing on Top

Join LIGENTEC, an influential, fast-growing deep-tech leader based in the vibrant scientific hub of Lausanne. We offer a unique career opportunity where you will directly impact our global expansion by translating our market-leading, next-generation photonics R&D into business success. You will be welcomed by an agile, international team of over 30 nationalities, valued for its enthusiasm, short decision paths, and open culture.
With us, you're empowered to drive strategy and make a tangible difference from day one, all within an environment that genuinely supports work-life harmony and professional development.

Ready to light up the future?
Apply now to join LIGENTEC as a Process Engineer and help us bring PICs to everyday life. Send us your CV, Cover Letter and any certification or relevant document to support your application.

Activity Rate: 100% | Location: Lausanne, Switzerland | Start Date: February 2026