Project Engineer III

Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space. We are mission-driven, and together, we are an extraordinary team. About the Role The Project Engineer role focuses on leading and executing technical projects supporting Sierra Space's System Integration Laboratory (SIL) engineering team, with responsibility spanning multiple SIL and FlatSat environments across the organization.

This position ensures the successful integration, test, and operational readiness of flight-like and engineering hardware/software configurations, while driving innovation and continuous improvement across lab operations. This role requires a strong technical foundation, advanced systems/integration engineering expertise, and the ability to collaborate effectively with cross-functional teams spanning engineering, test, program, manufacturing, and supplier organizations.

involves overseeing the design, development, configuration, and sustainme