Principal Mechanical Engineer

As Principal Mechanical Engineer, you will own the mechanical design of Astera Labs' paddlecards and the manufacturing test fixtures and processes that bring them to volume. Your work turns our PCIe, Ethernet, and UALink connectivity silicon into reliable, thermally robust, production-ready hardware that hyperscalers deploy at scale.

Astera Labs is a hyper-growth leader in purpose-built connectivity for rack-scale AI infrastructure, and our paddlecards are how customers first experience our technology. You will set mechanical and test strategy across the full lifecycle, from concept through ramp, partnering with silicon, board, signal integrity, and operations teams to deliver quality at speed in a fast-moving, high-impact environment.