Senior ASIC Physical Design Engineer

About Niobium At Niobium Microsystems, we develop high performance microelectronic products to enable the secure collection, processing, and distribution of critical data. We are a trusted partner of government research teams and commercial customers whose solutions require lower power, higher efficiency, and proven security. Founded as a 2021 spinout from Galois, Inc., a world-class security and computing systems research and development company, our team combines decades of experience in advanced semiconductor design with a record of delivering world class solutions. About This Role We are seeking a highly experienced ASIC Physical Design to drive the implementation of complex SoC designs from RTL handoff through tapeout. The ideal candidate has 8+ years of hands-on experience in advanced node physical implementation, proven ownership of multiple successful tapeouts, and the ability to lead both technically and organizationally. In this role, you will partner closely with Architecture, RTL Design, Verification, DFT, and Power teams to deliver high-performance, power-efficient silicon across cutting edge technology nodes. Responsibilities As the Physical Design Lead, you will be responsible for: End-to-End Physical Implementation Leadership Own and lead all physical design activities from RTL handoff, floorplanning, and PnR through final GDSII delivery. Define execution strategy, schedules, design methodology, and quality checkpoints for the entire physical design flow. Floo