Top Tech Jobs & Startup Jobs in Los Angeles, CA

Oversee global payroll operations for a growing, multi-state employer: manage payroll cycles, ensure compliance with payroll laws and taxes, coordinate timekeeping/HRIS, process new hires/terminations/garnishments, produce audit reports, resolve payroll inquiries, and collaborate with HR and accounting to maintain accurate payroll systems and reporting.

Provides L1/L2 technical support for enterprise applications and systems, serving as the first point of contact for software issues. Responsibilities include ticket and incident resolution, SLA tracking, license provisioning, access control troubleshooting, bug reproduction, user support across multiple locations, and assisting with technical projects. The role requires strong collaboration, independent problem-solving, and familiarity with ITSM tools and enterprise applications in manufacturing or aerospace environments.

The Director, Mission Engineering & Management will oversee program execution for a spacecraft bus product line, managing schedules, budgets, customer relations, and system requirements to ensure successful mission outcomes.

Own end-to-end mechanical engineering projects for Vast’s lunar ecosystem, including power stations, fluid systems, airlocks, nodes, and habitation modules. Lead lunar design trade studies, develop CAD models, drive fabrication and hardware integration, resolve anomalies, and represent systems at design reviews. The role requires hands-on ownership from concept through flight release, qualification, and testing while collaborating across power, thermal, avionics, life support, manufacturing, and systems architecture teams.

Lead full-cycle technical recruiting for multiple engineering disciplines: partner with hiring managers, source passive candidates, manage pipelines and ATS, run interview debriefs, report recruiting metrics, improve hiring velocity, and ensure a high-quality candidate experience while representing Vast's mission.

Design, implement, and support fixtures and tooling for Haven-1 assembly, lifting, and handling. Collaborate with integration, manufacturing, and vehicle engineering to define tooling specs, perform mechanical/FEA analysis, develop operation and maintenance plans, manage project schedules and vendors, iterate tooling improvements, and resolve production issues with technicians and stakeholders.

Lead reliability and design reviews for human-rated artificial-gravity space station systems. Oversee qualification and test completeness, drive engineering standards and processes, capture lessons learned, and partner cross-functionally to ensure design maturity, configuration control, and safe, resilient hardware development.

Support design, build, and operations of human-rated space stations by coordinating launch readiness, assessing and communicating risks, verifying testing and deliverables, supporting technical reviews, investigating anomalies, driving corrective actions, and building a safety-first mission assurance culture.

The Senior Mechanical Engineer will design and analyze structures for space stations, considering environmental impacts and leading subsystem integrations.

Design, implement, and maintain data acquisition and complex control systems for testing space-rated hardware. Develop software tools and standards, troubleshoot test assets, and collaborate with multidisciplinary teams to support robust testing and upgrade requests at the Long Beach test site.