Integration & Test Systems Engineer (Epsilon3 Developer)

About the job

AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet – on land, at sea and in flight.

Position Summary

AST SpaceMobile is seeking an Integration & Test (I&T) Systems Engineer (Epsilon3 Developer) to join our Enterprise Applications team, specializing in Epsilon3 interfaces and integrations for spacecraft Integration & Test operations. As the platform of record for I&T, the successful candidate will design, develop, configure, implement, and maintain Epsilon3-based procedures, test plans, and data integrations that streamline test execution, ensure real-time capture of test and telemetry data, and maintain accurate data flows between Epsilon3, test equipment/GSE, ERP, and PLM systems.

Assembly and manufacturing execution (BOMs, routings, work orders, and work centers) are owned and mastered in Tulip (MES); this role owns everything downstream of the build — Integration & Test procedures, test plans/cases/points, requirements verification, anomaly and non-conformance tracking, and test data acquisition — picking up serialized, as-built units at the handoff from assembly to test. The successful candidate will actively support test readiness reviews, procedure redlines and approvals, requirements traceability, and dashboards, while maintaining Epsilon3 solutions tailored to I&T campaigns across environmental, RF, and functional test. This role partners closely with test, systems, and quality engineering teams to translate real-world I&T needs into robust, user-friendly Epsilon3 solutions that enable scalability and efficiency.