Top Tech Jobs & Startup Jobs in Los Angeles, CA

Own the end-to-end design, modeling, testing, qualification, integration, and production scaling of Hall-effect thrusters. Lead plasma physics and performance analysis, life and erosion modeling, vacuum test campaigns, materials and process qualification, spacecraft propulsion interfaces, flight hardware support, failure investigations, and design improvements. Establish the technical roadmap, drive architecture and manufacturing decisions, mentor propulsion engineers, and provide technical leadership across the electric propulsion organization.

Own the design, analysis, development, manufacturing, integration, qualification, and testing of spacecraft mechanical hardware. Create CAD models and drawings, perform FEA, select materials and processes, support production, resolve hardware failures, lead design reviews, and mentor junior engineers.

Lead and manage the procurement organization and global supply managers to drive sourcing strategy, supplier selection, negotiations, PO execution, supplier performance, cost reduction, and production ramp support while ensuring ITAR/FAR compliance and ERP data integrity.

Develop and qualify manufacturing processes, tooling, fixtures, and production systems for high-rate spacecraft assembly. Optimize throughput, yield, quality, and cycle time across propulsion, avionics, and structural systems. Lead hardware transitions from development to production, support design for manufacturability, troubleshoot integration issues, perform root cause analysis, and drive corrective actions. The role also supports factory scaling, process automation, inspection, and manufacturing system development.

Interns will design, prototype, build, and test spacecraft sensor systems. Responsibilities include mechatronic system development, hands-on work with space hardware and ground support equipment, manufacturing and process automation, and learning satellite sensor operation. Interns will complete an impactful engineering project with mentorship and collaborate with broader engineering teams in a fast-paced aerospace environment.

Design and integrate electric propulsion systems for spacecraft buses, including architecture, fluidic systems, instrumentation, testing, and performance budgets. Develop qualification and acceptance plans, support environmental testing, troubleshoot manufacturing anomalies, and ensure design for manufacturability. Decompose requirements, conduct safety analyses and trade studies, manage suppliers, collaborate across engineering disciplines, and support customer relationships and business development.

Lead spacecraft launch integration and launch campaigns, serving as the technical liaison with launch providers. Manage mission requirements, interfaces, schedules, readiness reviews, transportation, pre-launch processing, testing, troubleshooting, regulatory approvals, and anomaly resolution. Mentor and direct launch engineers while developing scalable integration processes and supporting cross-functional mechanical, avionics, and systems engineering teams.

Design and implement flight software for autonomous satellite operations, ensuring reliable functionality through all mission phases. Collaborate across teams to meet requirements and test software.

Write and edit RFIs, RFPs, white papers, presentations, and other proposal materials for government, commercial, and international customers. Own the proposal lifecycle, coordinate technical, pricing, and schedule inputs across cross-functional teams, maintain templates and content libraries, translate complex concepts into persuasive content, and deliver high-quality proposals under tight deadlines.

Drive Apex’s growth in US Government markets by developing pipelines, managing accounts, identifying and closing opportunities with prime contractors, and owning full-cycle deal execution. The role includes account strategy, forecasting, CRM hygiene, executive relationship development, industry event participation, and providing market feedback for product, pricing, and competitive strategy. Candidates need 5+ years of government-space business development or sales experience, quota-carrying experience, satellite-market expertise, and U.S. Person status.