The future of AI computing is light, not electrons. Q.ANT is building photonic processing systems that compute with light – delivering a scalable, energy-efficient alternative to transistor-based architectures for next-generation AI and HPC applications.

As a Material Engineer (m/f/d), you will be the theoretical and practical expert for our core material stack. Your mission is to characterize, develop, and deeply understand our base material, lithium niobate, identifying complex issues and implementing scalable solutions. You will work at the cutting edge of thin-film and interface physics, ensuring that our material science translates directly into high-performance photonic integrated circuits (PICs).

Your Responsibilities

• Take full ownership of characterizing and developing the base material, lithium niobate, to ensure optimal performance of photonic systems.
• Proactively identify material defects and functionalities, learning to control them and implementing robust solutions within the manufacturing process.
• Serve as the go-to theoretical expert for the material stack, answering urgent technical questions regarding material behavior and physics.
• Manage contacts and coordinate complex measurement schedules with external facilities, including organizing and leading measurement sessions.
• Work in close contact with the manufacturing team to integrate material findings into production workflows.
• Navigate complex, interlinking problems with a high degree of creativity to find innovative solutions even with sparse measurement resources.