Photonics Quality Engineer

About the role

LIGENTEC is a team of experts in integrated optics, delivering photonic integration platforms, design enablement and integrated solutions. As a Quality Engineer in Ecublens, you will embed world-class quality into the development and manufacturing of low-loss integrated photonics platforms, bridging prototype operations, technology transfer and scalable production. You will oversee process compliance, reliability qualification and yield optimization across the company's sites in Switzerland and France, while maintaining the ISO 9001 QMS and partnering with cross-functional deep-tech teams on Silicon Nitride (SiN) and Thin-Film Lithium Niobate (TFLN) technologies.

Key responsibilities

• Implement quality engineering principles during product development and technology transfer, defining quality gates, qualification test plans and reliability criteria for SiN and TFLN platforms
• Conduct and facilitate risk assessments, including Design and Process FMEAs, for technical changes and core development processes
• Partner with prototype, test and production teams in Switzerland and France to optimize manufacturing processes, cycle times, yield and quality metrics
• Lead non-conformance management (QER) and root-cause analysis (8D, 5-Why, Fishbone), driving effective CAPA
• Establish Statistical Process Control (SPC) frameworks, oversee outgoing quality checks and set up control plans at critical production stages
• Maintain ISO 9001 SOPs and work instructions, conduct internal quality audits and support supplier and third-party audits
• Embed Lean / Six Sigma continuous improvement and report quality KPIs to leadership

Required profile

• Bachelor's or Master's degree in Engineering, Materials Science, Microelectronics, Physics or a related technical discipline
• 3-5+ years of hands-on quality engineering experience in semiconductors, MEMS, microelectronics, photonics or high-tech hardware
• Fluency in English; French is a strong advantage
• Agile, pragmatic and detail-oriented mindset suited to a fast-paced, high-tech environment

Required skills

• Structured root-cause analysis (8D, 5-Why, Fishbone)
• CAPA management and quality tools (FMEA, SPC, Control Plans)
• ISO 9001 QMS maintenance; Six Sigma Green Belt is a strong plus

What we offer

• On-site work in Ecublens (Lausanne area), 100% of the time, with up to two days of home office per week
• Start date as soon as possible