Top Tech Jobs & Startup Jobs in Los Angeles, CA

Own end-to-end electrical harness design for testbed and safety-class nuclear systems, including CAD routing, schematics, component selection, safety requirements, release packages, BOMs, supplier qualification, quality processes, and in-house builds. Direct harness technicians, manage tooling and workmanship standards, support supplier communications and nonconformances, and administer harness design software and automation.

Own Antares’ long-range financial model and develop analyses for manufacturing economics, reactor deployments, contracts, capital allocation, pricing, fundraising, and growth planning. Evaluate investments, unit economics, government and commercial programs, and market opportunities. Partner with technical and business teams and prepare materials for leadership, the board, investors, lenders, and strategic partners.

Leads end-to-end development of advanced space payloads, from concept and simulation through prototyping, integration, and operational deployment. The role develops mission concepts, evaluates payload performance, makes technology investment and make-versus-buy decisions, engages government and commercial stakeholders, and drives technical reviews. Strong multidisciplinary expertise in physics, sensing, thermal-fluid systems, power systems, engineering economics, and space operations is required, along with leadership of complex defense, energy, intelligence, or NASA-related programs.

Leads Antares’ communications and marketing function, developing strategy aligned with business objectives, customer engagement, stakeholder relations, events, internal communications, executive messaging, brand and digital presence, crisis management, and content production. Advises senior leadership, prepares executives for high-profile engagements, manages external partners, and builds the team and budget. The role supports defense, government, commercial, international, investor, regulatory, community, and employee audiences while helping the company scale through rapid growth and major milestones.

Own the full lifecycle of tooling and ground support equipment for microreactor manufacturing, assembly, testing, transportation, installation, maintenance, and decommissioning. Design detailed CAD models and drawings, perform mechanical analysis, collaborate with fabrication teams and suppliers, commission equipment, and support factory and field operations. Develop safe, ergonomic, reliable solutions for lifting, handling, alignment, testing, and deployment of complex hardware in safety-critical environments.

Develop infrastructure and tooling for cloud and on-premises applications and compute workloads. Responsibilities include improving deployment automation, integrating systems, creating Grafana dashboards and alerts, standardizing Python data projects, migrating cluster infrastructure to Rocky Linux and Warewulf, building storage and compute-usage tools, optimizing cloud costs, and documenting quality processes. The role is onsite in Torrance, California, and includes substantive software and systems projects.

Develop and test embedded software connecting to reactor hardware. Responsibilities include hardware-in-the-loop validation, failure investigation, automated testing, telemetry instrumentation, system monitoring, and integrating signals into HMI and Grafana. The intern will complete starter assignments and a long-duration technical project culminating in a deliverable and presentation while working onsite with cross-functional engineering teams.

Develop inspection methods for mechanical and electrical systems, qualify inspection equipment, characterize measurement uncertainty, validate hardware, and improve inspection repeatability. The intern will collaborate across design, manufacturing, testing, supply chain, and materials teams while owning a long-term technical project culminating in a presentation.

Develop and execute supply chain strategy for advanced nuclear microreactor prototyping and production. Responsibilities include supplier identification and onboarding, commodity strategy, design-for-manufacturing collaboration, supplier quality coordination, logistics development, supply chain systems and process creation, performance reporting, procurement, materials management, and ensuring hardware delivery for engineering milestones. The role requires cross-functional work in an ambiguous startup environment and travel to suppliers.

Own turbomachinery hardware for nuclear reactors from concept through production. Lead design, analysis, manufacturing, testing, qualification, supplier coordination, requirements development, verification planning, technical risk reduction, issue resolution, and corrective actions. Coordinate aerodynamics, mechanical design, structures, rotordynamics, bearings, thermal analysis, manufacturing, and test teams while balancing performance, reliability, cost, manufacturability, risk, and schedule.