GSE Mechanical Technician II, III, Senior

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. The rockets and satellites we build and launch enable some of the most ambitious and vital space missions globally, supporting scientific exploration, Earth observation, 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 of this is done while we develop Neutron, our forthcoming medium‑lift, reusable launch vehicle for larger constellation deployment.

Neutron is a medium‑lift launch vehicle capable of delivering the mega‑constellations of tomorrow, high‑assurance payloads, and human spaceflight. As a highly reusable launch platform, Neutron will deliver a highly cost‑effective and reliable launch solution leveraging Rocket Lab’s proven execution history with the Electron program.

Based out of Rocket Lab’s Test Facility at Stennis Space Center in Mississippi, the GSE Mechanical Technician supports the Arimedes rocket engine and the Neutron launch vehicle. The role involves building and operating critical test facilities, collaborating with technicians and engineers, and contributing to the overall design, build, activation, and test efforts of the facility.

• Build facility systems of tubing, piping, and mechanical structures.
• Apply mechanical engineering principles to ensure systems meet integrity and cleanliness standards.
• Assist with rocket engine hardware processing and checkout operations.
• Operate high‑pressure gas and cryogenic systems following detailed work instructions and proper PPE.
• Conduct facility checkout and test operations safely, maintaining situational awareness and clear communication.
• Troubleshoot facility and test operation issues.
• Collaborate with GSE teams to design, install, and check out facility systems.

• At least 2 years of experience in facility operations in aerospace, oil & gas, or heavy industry.
• High school diploma or GED.
• Demonstrated experience building and activating facility systems.
• Proven collaborative work ethic.
• Experience with high‑pressure gas and cryogenic systems.

• At least 5 years of experience in facility operations in aerospace, oil & gas, or heavy industry.
• High school diploma or GED.
• Demonstrated experience building and activating facility systems.
• Proven collaborative work ethic.
• Experience with high‑pressure gas and cryogenic systems.

• At least 8 years of experience in facility operations in aerospace, oil & gas, or heavy industry.
• High school diploma or GED.
• Demonstrated experience building and activating facility systems.
• Proven collaborative work ethic.
• Experience with high‑pressure gas and cryogenic systems.

• Experience operating and/or building rocket engine test stands or large industrial complexes.
• Knowledge of industry processes for pressure systems and cleanliness (e.g., NASA, U.S. Air Force, Department of Defense, ASME).
• Post‑secondary education or technical licenses (A&P or similar).
• Experience with rocket engines or launch vehicles.
• Familiarity with liquid oxygen and liquid methane facilities.
• Knowledge of valve types, fittings, flanges, and materials of construction.
• Ability to troubleshoot systems and develop corrective work instructions.
• Basic computer skills in MS Office, e‑mail, and collaborative networks (JIRA or Confluence).
• Experience coordinating with trade disciplines, fabricators, and suppliers to achieve on‑time project delivery.

We’re on a mission to unlock the potential of space to improve life on Earth. The role demands hard work, determination, relentless innovation, teamwork, grit, and an unwavering commitment to achieving seemingly impossible goals. Candidates will thrive under pressure, meet tight deadlines, and focus on delivering solutions rather than dwelling…