Top Systems Engineer Jobs in Los Angeles, CA

Design and analyze C-17 aircraft payload and cargo handling systems, including structural components, repairs, and modifications. Use FEA and CAD tools to assess performance, safety, and reliability. Conduct root cause analysis, develop corrective actions, prepare engineering documentation, and support certification and regulatory compliance. Collaborate with engineering, maintenance, operations, customers, suppliers, and agencies while providing technical leadership and mentoring to junior engineers.

Leads mission systems engineering for first-of-kind space vehicles and missions. Develops physics-based simulations, mission concepts, flight plans, and operational planning tools; supports system trade studies, technology integration, and performance verification. Collaborates with multidisciplinary teams, customers, and subject matter experts while presenting technical reviews and leading integrated development efforts across space and ground systems.

Leads software systems engineering for SATCOM mission planning tools supporting space and ground systems. Responsibilities include requirements, architecture, API and backend development, frontend interfaces, integration, testing, deployment, code reviews, security, performance improvements, and technical mentoring. The role requires Python, JavaScript, TypeScript, Agile and DevSecOps experience, an active U.S. Secret clearance, U.S. citizenship, and full-time onsite work in Seal Beach, California.

Develops system architectures using MBSE and SysML, decomposes requirements, maintains traceability, analyzes mission threads and use cases, and supports engineering milestone reviews. The role translates customer reference architectures, ensures model compliance, improves MBSE processes and tools, mentors systems engineers, and supports customer relationships. The position is fully onsite in El Segundo, California, and requires U.S. citizenship, export-control eligibility, and the ability to obtain a Secret clearance.

Develop and maintain software requirements, architecture, algorithms, interfaces, APIs, backend services, and user interfaces for SATCOM mission-planning systems. Work throughout the Agile and DevSecOps lifecycle, including design, coding, integration, testing, deployment, code reviews, automation, security, and performance improvements. Support CI/CD pipelines, Kubernetes optimization, databases, geospatial visualization, and software for space systems and ground segments.

Develops mission engineering threads, operational scenarios, and systems-of-systems assessments for integrated missile warning and tracking. Analyzes capability gaps, risks, requirements, dependencies, interfaces, and end-to-end kill chains across space sensors, ground systems, communications, data processing, and command-and-control architectures. Collaborates with Space Force, government, industry, and joint-service partners to improve mission integration and inform enterprise priorities.

Designs, analyzes, tests, and supports satellite electrical power and harness subsystems throughout the spacecraft lifecycle. Responsibilities include requirements development, verification planning, battery and power regulation modeling, harness analysis, power budgeting, architecture and sizing, fault-tolerance assessments, anomaly resolution, and cross-functional integration. The role supports satellite development and sustaining engineering, including solar array sizing, battery capacity determination, electromagnetic compatibility, mission operations, and root cause analysis.

Owns vehicle fluid subsystem architecture for launch vehicles, including schematics, control schemes, component selection, sizing, and fluid and thermal analyses. Leads design and manufacturing reviews, defines validation testing, supports integrated vehicle testing and launch operations, and applies thermodynamics, fluid dynamics, and heat transfer expertise. Requires Python or similar programming for scientific computing and automated test or simulation data analysis.

Develop and maintain requirements, architectures, algorithms, interfaces, and designs for satellite command-and-control software. Lead software development in scaled Agile and DevSecOps environments, integrate software components, support customer demonstrations, and perform Product Owner, Technical Lead, Scrum Master, Release Train Engineer, or Integration and Test responsibilities. Manage development schedules, integration activities, and cost baselines while supporting high-performance ground systems.

Architects, designs, specifies, develops, integrates, tests, and qualifies real-time satellite payload models for software and hardware-based system simulators. Responsibilities include requirements analysis, software architecture and design, code reviews, test planning, system-level CONOPS development, functional decomposition, trade studies, and collaboration with multidisciplinary engineering teams. The role is fully onsite and supports defense, government, and commercial satellite programs in an agile CI/CD environment.

Develops and verifies RF communication systems for spacecraft, including space stations and satellites. Responsibilities include link budgets, coverage analysis, RF component ownership, requirements and verification, regulatory analyses, testing, integration, vendor coordination, design reviews, and mission operations support. The engineer collaborates across mechanical, thermal, avionics, manufacturing, test, and mission assurance teams to deliver and operate space-qualified RF products.

Designs, integrates, configures, and optimizes IT infrastructure throughout its lifecycle. Installs and administers operating systems, servers, virtualization, storage, and Office 365 environments; supports high availability and security; documents procedures; researches automation; and leads DevSecOps adoption for ground-support computing infrastructure. Requires collaboration with engineering teams on requirements, schedules, deployments, and costing.

Leads end-to-end space system integration and test programs spanning spacecraft, ground systems, software, hardware, and external interfaces. Develops test requirements, procedures, scripts, and configurations; performs laboratory and flight hardware testing; troubleshoots technical issues; supports verification, validation, launch readiness, and mission operations. Coordinates multifunctional teams, presents status to leadership, improves processes, and leads small projects while managing technical scope, cost, and schedule.

Designs and integrates complex aerospace mechanical systems, supporting architecture trade studies, requirements-based engineering, validation and verification, system testing, technical presentations, and documentation. The role focuses on thermodynamics and thermal management within cross-functional teams, including planning performance, environmental, and vibration tests. Candidates will work in Torrance, California, on a hybrid schedule and must meet U.S. export-control requirements.

Designs, integrates, verifies, and tests satellite ground systems. Develops requirements, interface documents, architecture, test plans, and reports. Performs system analyses for reliability, safety, maintainability, security, and affordability. Works in agile teams, mentors staff, and supports requirements management, system integration, verification, and customer delivery to ensure mission success.

Develop and integrate space payload emulators using Xilinx SoC/FPGA platforms, embedded Linux, firmware, drivers, and hardware/software interfaces. Build Java or JavaScript GUIs for telemetry, command, and control. Perform board bring-up, lab debugging, system integration, and testing with multidisciplinary engineering teams. Use Xilinx toolchains, version control, and modern software practices while providing technical leadership during integration campaigns.

Designs, develops, integrates, tests, and sustains satellite ground and mission control systems. Responsibilities include defining hardware and software requirements, developing integration and test plans, supporting customer and government-furnished systems, leading mission-control testing, designing mission data interfaces, supporting on-orbit operations, and contributing to proposals. The role is fully onsite and requires an active U.S. Secret clearance and U.S. citizenship.

Leads reliability, maintainability, and system safety engineering across the aerospace systems lifecycle. Responsibilities include reliability and maintainability analysis, human factors assessments, functional hazard analysis, safety requirements decomposition and verification, FMECA, systems integration, model-based development, customer interaction, and coordination of small engineering teams. Requires a technical bachelor’s degree and at least one year of systems engineering experience.

Lead design and technical strategy for spacecraft Command & Data Handling architectures. Perform trade studies, requirements and ICD definition, signal integrity/EMI analysis, vendor selection, integration/test oversight, FDIR collaboration, and mentor engineering staff to ensure mission-ready avionics and electrical hardware.

Leads development of MILSATCOM ground mission planning systems, including requirements analysis, architecture and interface design, software integration, system testing, verification, and customer demonstrations. Coordinates engineering, software, supplier, and test teams; manages requirements, risks, issues, and technical interfaces; supports working groups and resolves cross-functional technical issues. The role requires active Top Secret clearance, U.S. citizenship, a bachelor’s degree, and at least five years of engineering experience.

Design and verify RF, digital, and optical satellite communication systems, develop and validate fixed-point multi-rate DSP architectures, perform link budgets and performance analysis, support ASIC/FPGA system design and prototype demonstrations, and lead integration, verification, and trade studies.

Owns Terran R vehicle RF systems, including architecture trades, link budgets, frequency planning, antenna coverage analysis, RF hardware development, integrated testing, and anomaly investigations. Establishes RF analysis standards, leads cross-disciplinary technical work, and mentors junior engineers. The role requires extensive flight-system RF experience, hands-on test equipment use, electromagnetic simulation, and Python or MATLAB automation.

Own end-to-end power system architecture and power electronics development for lunar systems, including circuit design, simulations, PCB design, packaging, bring-up, validation, environmental qualification, and reliability analysis. Lead power architecture tradeoffs, radiation and thermal mitigation, fault-tolerant design, qualification campaigns, and technical reviews. Mentor junior engineers and establish scalable design standards and processes across programs.

Designs, develops, analyzes, and verifies RF, digital, and optical communications payloads for space applications. Responsibilities include requirements development, trade studies, system algorithms, MATLAB-based simulations, link and performance analysis, supplier oversight, hardware procurement, design reviews, integration, testing, troubleshooting, and on-orbit operations support. The role supports satellite programs throughout their full life cycle and requires active U.S. Secret clearance and 100% onsite work.

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.