Principal/Senior Principal Engineer - TS/SCI Clearance

ABOUT ROCKET LAB Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more – all with the goal of opening access to space. The rockets and satellites we build and launch enable some of the most ambitious and vital space missions globally, supporting scientific exploration, Earth observation and missions to combat climate change, national security, and exciting new technology demonstrations.   Our Electron rocket has become the second most frequently launched U.S. rocket annually and has delivered more than 230 satellites to orbit, all while we work to develop Neutron, our upcoming medium-lift, reusable launch vehicle for larger constellation deployment. Our Space Systems business designs and builds our extensive line of satellites, payloads, and their components, including spacecraft that have been selected to support NASA missions to the Moon and Mars and components used on the James Webb Space Telescope.  SPACE SYSTEMS At Rocket Lab, we’re not just launching rockets — we're building the future of space. Our Space Systems team builds everything from complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and more. Our Space Systems team has enabled more than 1,700 missions, ranging from interplanetary exploration, in-space manufacturing to national security and defense initiatives. The team has built spacecraft, payloads, and components for missions to the Moon and Mars, working with partners including NASA, the Space Development Agency, and the U.S. Space Force. Whether it’s a single high-performance spacecraft, constellation, or the vertically integrated components that help them get to space — our world class Space Systems team is empowering some of the boldest and most ambitious space missions. PRINCIPAL/SENIOR PRINCIPAL ENGINEER - TS/SCI CLEARANCE Based at Rocket Lab’s global headquarters in Long Beach, California, the  Principal/Senior Principal Engineer  is responsible for overseeing our various satellite programs. You will support the Space Systems Chief Engineer, with deliverables required for internal leadership, board of directors, and investors. (Please note: this position can be hired at the Principal Engineer or Senior Principal Engineer level) WHAT YOU’LL GET TO DO: Provide oversight and review of spacecraft system engineering, including: Requirement derivation System and subsystem requirement verification techniques Vehicle performance budgets Test methods and data analysis Simulation and analysis Technical leadership in future architectures, platform, and payloads for future missions both internal and external Assist or lead system and subsystem architectural developments for existing missions Assist with program and product management YOU’LL BRING THESE QUALIFICATIONS AS PRINCIPAL ENGINEER: Bachelor’s degree in engineering or other technical discipline Active TS/SCI clearance U.S. citizenship is required, due to program requirements 12+ years of experience supporting satellite or spacecraft programs Understanding of spacecraft subsystems and their associated components Thorough understanding of the space environment, orbital mechanics, and rigid body dynamics Experience with satellite operations YOU’LL BRING THESE QUALIFICATIONS AS SENIOR PRINCIPAL ENGINEER: Bachelor’s degree in engineering or other technical discipline Active TS/SCI clearance U.S. citizenship is required, due to program requirements 15+ years of experience supporting satellite or spacecraft programs Understanding of spacecraft subsystems and their associated components Thorough understanding of the space environment, orbital mechanics, and rigid body dynamics Experience with satellite operations THESE QUALIFICATIONS WOULD BE NICE TO HAVE: Master’s or PhD in an engineering or other technical discipline Experience with MATLAB, Python, and STK Experience with testing electrical subsystems and assemblies, thermal vacuum or random vibration, and hardware-in-the-loop (HITL) testing Ability to work in a dynamic environment with competing priorities This position may require prolonged periods of sitting, standing, walking, computer work, and occasional exposure to moderate levels of noise, dust, and fumes in production areas. Level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience. Base salary is just one component of our total rewards package at Rocket Lab.  Employees may also receive company equity and access to a robust benefits package including: top tier medical HMO, PPO & a 100% company-sponsored medical HSA plan option, dental and vision coverage, 3 weeks paid vacation and 5 days sick leave per year, 11 paid holidays per year, flexible spending and dependent care savings accounts, paid parental leave, disability insurance, life insurance, and access to a 401(k) retirement plan with company match. Other perks include: Discounted employee stock purchase program, subsidized EV charging stations, onsite gym, food and drinks, and other discounts. Eligibility for benefits may vary based on employment status, please check with your recruiter for a comprehensive list of the benefits available for this role. Benefit programs are subject to change at the company’s discretion. Base Pay Range (CA Only) $180,000 — $250,000 USD   WHAT TO EXPECT   We’re on a mission to unlock the potential of space to improve life on Earth, but that’s not an easy task. It takes hard work, determination, relentless innovation, teamwork, grit, and an unwavering commitment to achieving what others often deem impossible. Our people out-think, out-work, and out-pac