Jobs at Antares

Leads manufacturing process development and production launch for nuclear reactor assemblies. Responsibilities include DFM/DFA, assembly process flows, tooling and equipment development, manufacturing documentation, mBOMs, configuration control, readiness reviews, floor troubleshooting, cross-functional collaboration, and mentoring engineers. The role supports hardware from engineering release through prototype, qualification, final integration, and scalable production while meeting rigorous quality and traceability requirements.

Own key monthly, quarterly, and annual close activities, including journal entries, reconciliations, accruals, variance analysis, financial reporting, audits, tax support, and compliance. Support government contract accounting, manufacturing and inventory accounting, technical accounting, internal controls, ERP improvements, and process automation while helping build Antares’ accounting infrastructure as it scales into production.

Execute direct and indirect procurement, purchase order management, supplier performance tracking, delivery follow-up, and procure-to-pay improvements. Partner with Finance and Accounts Payable on approvals, invoice matching, exceptions, and payment visibility. Build dashboards and reports, maintain supplier data, document procurement procedures, and support scalable supply chain processes in a fast-changing hardware environment.

Design, analyze, qualify, and deploy heat exchanger systems and associated piping for advanced energy applications. Responsibilities include thermal and structural analysis, piping flexibility, pressure and thermal-load evaluation, material and fabrication development, test article and validation testing, hardware integration, failure investigation, and design improvement. The role requires collaboration across engineering, manufacturing, materials, quality, and testing teams to deliver reliable, manufacturable high-temperature hardware.

Design and analyze heat exchangers, piping, manifolds, and pressure-containing components for advanced energy systems. Evaluate thermal stresses, fluid mechanics, structural integrity, thermal expansion, and mechanical loads. Support materials selection, fabrication, testing, hardware validation, failure investigations, and design improvements. Collaborate with engineering, manufacturing, materials, quality, and testing teams to mature reliable hardware from concept through production.

Lead technical recruiting for aerospace and technology roles by partnering with hiring managers, sourcing passive candidates, managing pipelines, advising on market dynamics, building talent maps, and closing high-quality talent. The role also involves recruiting analytics, employer branding collaboration, process improvement, and support for critical technical hiring. Requires onsite work in Torrance, California, with occasional long hours and weekends as needed.

Develop and maintain quality processes for nuclear microreactor manufacturing, including nonconformance management, calibrated hardware procedures, material certification, supplier qualification, root-cause investigations, and regulatory compliance. Collaborate with engineering, production, and supply chain teams to mitigate quality risks, improve processes, and document procedures and findings. The role requires supporting critical milestones, potentially including long hours and weekends.

Supports the Chief Nuclear Officer through complex calendar, meeting, travel, and communication coordination. Prepares agendas, briefings, presentations, reports, and follow-up materials; manages confidential projects and documents; liaises with internal teams, partners, candidates, investors, and government officials; conducts light research and analysis; tracks deliverables and project timelines; and helps manage the Washington, DC office.

The Receptionist manages the front desk, welcomes and verifies visitors, maintains access procedures, coordinates meetings and catering, supports shipping and office supplies, and handles administrative tasks. The role requires consistent onsite coverage, professional communication, organization, discretion, and comfort with workplace technology. This position supports employees, candidates, vendors, executives, and guests while helping maintain a smooth, welcoming, and well-stocked office environment.

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.

Lead supply chain strategy for complex nuclear energy systems, including supplier identification and development, design-for-manufacturing reviews, quality coordination, make-versus-buy analysis, should-cost modeling, performance reporting, and prototype hardware execution. The role supports scaling from prototyping to full-rate production across commodities such as machined components, controls, shielding, thermal management, turbomachinery, and fuel.

Develop and execute supply chain strategies for complex microreactor components, including supplier identification, qualification, onboarding, supplier quality, design-for-manufacturability feedback, make-versus-buy analysis, should-costing, metrics, and prototype hardware delivery. The role partners closely with engineering and quality teams to mature suppliers and scale production from prototyping to full-rate manufacturing.

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.