Top Systems Engineer Jobs in Los Angeles, CA

Perform steady-state simulation, modeling, validation, and performance analysis of Environmental Control Systems (ECS/VCS) for various aircraft using Nexsys. Define system requirements, optimize models, support system integration testing, coordinate handoffs across stakeholders, and provide test execution and data analysis support. Travel up to 25%.

Lead spacecraft systems engineering across concept, requirements, design, integration, test, verification, and lifecycle support. Coordinate subsystems, perform trade studies and analyses, apply MBSE, resolve anomalies, manage risk and schedules, and mentor junior engineers to deliver mission-ready satellites.

Serve as technical owner for assigned payload products, focusing on system integration, supplier technical management, interface control, and payload performance. Manage subcontracted development, project scope, schedules, cost estimates, EVM, anomaly resolution, technical trades, and present reviews to leadership. Support on-orbit systems and lead cross-functional efforts in a fast-paced, onsite environment.

As a Senior Mechanisms Systems Engineer, you will lead design and integration of complex mechanical systems, ensuring performance, reliability, and schedule alignment. Responsibilities include defining requirements, leading cross-disciplinary activities, driving development tests, and managing design and test schedules.

Lead development and integration of Salesforce-centered GTM systems: build Apex/LWC solutions, design event-driven integrations, optimize data flows to Snowflake, manage CI/CD with Gearset/Git, write SQL for reporting and data quality, troubleshoot production, and mentor developers while advancing AI-enabled, composable CRM automation.

The IT Systems Engineer designs, develops, and integrates complex systems, focusing on operational support and optimizing system engineering tasks in a collaborative environment.

Responsible for fluid system architecture and function for vehicle subsystems, applying expertise in thermodynamics, design, and validation efforts.

The Vehicle Fluid Systems Engineer will manage fluid system architecture for rockets, conduct fluid analyses, and support hardware design and testing.

Lead architecture, development, and validation of end-to-end aircraft fuel systems. Drive cross-functional integration, system-level modeling (CFD), verification, supplier qualification, ground and flight test support, anomaly root-cause analysis, and mentor engineering teams while contributing to long-term fuel-system technology roadmaps.

Lead integrated stage test campaigns for Terran R: develop and execute test plans, write test sequences, sit console for hotfire tests, troubleshoot systems in real time, decompose requirements, drive verification and risk mitigation, and coordinate cross-functional subsystem investigations. Travel to test and launch sites and work hands-on with hardware through qualification, acceptance, and launch campaigns.

The Information Systems Engineer will design integrations and enhance engineering processes across various business systems, focusing on scalability and efficiency. Responsibilities include collaborating with teams to implement systems solutions, optimizing integrations, monitoring performance, and supporting production applications.

Lead satellite assembly, integration, and test activities through launch, develop and approve procedures, troubleshoot hardware/software integration, run environmental tests (EMI/C, Dynamics, TVAC), improve manufacturing throughput, monitor performance with statistical tools, and coordinate across programs, manufacturing, facilities, and quality to meet delivery targets.

Administer and maintain Millennium's Atlassian/JIRA environments (production, dev, test); build projects, workflows, permissions; monitor server health; perform data migrations; provide user support and training; prepare documentation and coordinate upgrades and maintenance with IT.

As Lead Systems Engineer, you will define and implement mission requirements for space systems, lead cross-functional technical teams, and guide verification efforts, ensuring mission success and operational readiness.

Designs, delivers, and leads the Guidance, Navigation, and Controls subsystem for small satellite programs. Responsibilities include GNC design and analysis, flight control software development and verification, sensor/actuator selection, interfacing with systems and program teams, managing cost/schedule/risk, supporting satellite integration, test, and on-orbit operations, and providing technical leadership and mentorship as the REA for program GNC delivery.

Lead systems engineering across avionics, RF communications, and electrical power subsystems, ensuring requirements traceability, interface management, and integration planning. Mentor junior engineers and represent avionics in design reviews.

The Electrical Engineer II will support design, analysis, and testing of electrical systems for spacecraft, contributing throughout the development lifecycle.

Develops and implements manufacturing processes for satellite structures and propulsion. Reviews designs for manufacturability, creates work instructions/BOMs/SOPs, coordinates vendors, leads transition from low-rate to higher-rate production, and applies root cause analysis and process improvements. Requires second-shift work and eligibility for U.S. security clearance.

Design and lead development of space-based RF payloads and communications subsystems for small satellites. Perform link-budget and antenna analysis, select RF components, collaborate on integration, verify manufacturing and on-orbit operations, and develop SDR and communications technologies to flight readiness.

Lead definition, integration, and verification of external system-to-system interfaces across space, ground, and cross-segment architectures. Develop and baseline ICDs/IRDs, decompose requirements, maintain DOORS-managed configuration, coordinate mechanical/electrical/data/RF/software interfaces, support integration and test planning, resolve interface anomalies, participate in design reviews and working groups, and communicate technical status to leadership and customers.

Lead definition, integration, and verification of external system interfaces across space, ground, and partner segments. Develop and baseline ICDs/IRDs, decompose requirements, coordinate mechanical/electrical/data/RF/software interfaces, support integration/test planning and anomaly resolution, and communicate technical status to stakeholders.

Support factory and site integration and test for ground systems: develop and execute system-level test procedures, conduct dry-runs and run-for-records, present at TRRs/TRBs, analyze test data and drive discrepancy resolution, author test/configuration documentation, support hardware/software/network integration, and participate in site installation and verification activities.

The Avionics Systems Service Engineer assists airline customers with technical problems, troubleshooting avionics issues, and providing solutions to return airplanes to service.

Develop, integrate, and verify vehicle management software for flight systems. Build simulation and hardware-in-the-loop test environments, author and execute V&V test plans, automate test frameworks and CI/CD pipelines, investigate defects, maintain engineering/test documentation, and coordinate cross-functional verification efforts.

Drive supplier quality and material reliability across supply chain, engineering, and manufacturing. Lead containment and root-cause analysis for nonconformances, track yields and escapes, implement corrective actions, improve supplier capability, and incorporate lessons learned into NPI to meet program reliability goals.