Principal Assembly, Integration & Test; AIT Engineer - EGSE

Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.

At Cesium Astro
, we develop and pioneer out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. Our dynamic, cross‑functional environment allows team members to learn, develop, and engage across the organization. If you seek hands‑on, interactive, and autonomous work, Cesium Astro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward‑thinking individuals to join our team.

We are looking to add a Principal Assembly, Integration & Test (AIT) Engineer I specializing in Electrical Ground Systems Test to our team, providing expertise, peer leadership, and daily lab work supporting AI&T operations. If you are excited about working in a dynamic environment and are passionate about developing critical test systems for leading‑edge spacecraft and aerospace communication systems, we would like to hear from you.

The satellite team is creating a new business pipeline through internal investments and future contracts. Become part of Cesium Astro’s growth, success, and future!

• Define requirements, designs, and provide ongoing support for electrical ground support equipment (EGSE) development for testing a satellite.
• Work with Systems Engineering to establish test plans and maintain requirements verification test matrix.
• Work with Program Management to build AI&T schedules that inform master schedules.
• Support on‑orbit mission operations with knowledge gained from integration/test activities.
• Validate all electrical interfaces between test equipment and flight hardware.
• Provide expert guidance and peer review for satellite assembly, integration, and test campaigns.
• Develop and execute acceptance/qualification testing activities including vibration, acoustic, shock, propulsion static fires, EMI/EMC, RF, self‑compatibility, ground compatibility, day‑in‑the‑life (DITL), and thermal vacuum testing.
• Lead anomaly reporting as well as root‑cause and corrective action implementation with sound engineering judgement and excellent communication skills.
• Troubleshoot electrical issues during subsystem and component integration and test.
• Lead and participate in integration and test readiness reviews along with post‑operational briefings.
• Analyze, document, and present integration and test data to support verification activities.
• Author test procedures and lead/conduct test activities.
• Support satellite AI&T and launch operations effort (sequence of activities, required facilities, special test equipment, personnel, schedule, risks, opportunities).
• Work both independently and in teams to achieve integration and test objectives.
• Identify, support, and help enforce safety policies and practices for assembly, integration, and test activities.
• Work onsite in the lab and cleanroom daily for AI&T operations.

• Minimum of a B.S. degree in aerospace, electrical, or related engineering discipline.
• Minimum of 9 years experience, including prior significant roles on spacecraft or related systems assembly, integration, and test operations.
• Prior experience in multiple stages of satellite and component/GSE development, including early design for test, test operations, and operational missions.
• Experience in requirements management, system design, integration, and test.
• Proficiency in at least one scripting language such as Python, with willingness to learn new ones.

• Test experience with RF communication systems.
• Test experience with EMI/EMC compatibility and mitigation.
• Experience using COSMOS and Grafana.

$150,000 - $180,000 a year

Cesium Astro considers several factors when extending an offer, including but not limited to the role and associated responsibilities, a candidate’s work experience,…