Jobs at Radiant Industries

Designs and develops critical nuclear reactor mechanisms, including actuators and valves. Responsibilities include trade studies, material selection, thermomechanical and kinematic analysis, CAD-based assembly design, manufacturing and testing, BOM management, supplier development, scheduling, and FMEA. The role requires collaboration across engineering disciplines and ownership of mechanism integration from design through testing. This position is fully onsite in El Segundo and may require extended hours or weekend work.

Supports indirect procurement across IT, facilities, MRO, professional services, consumables, and R&D. Responsibilities include supplier evaluation, sourcing, SOW and contract support, purchase order tracking, vendor coordination, cost and quality analysis, technical supply chain risk identification, and process improvement. The role partners with engineering, operations, finance, and production, requiring strong mechanical aptitude, analytical skills, communication, and willingness to work onsite with occasional supplier travel.

Supports sourcing and procurement for nuclear microreactor components, materials, and services. Responsibilities include purchase order tracking, supplier relationship management, quote and cost analysis, supplier risk assessments, performance metrics, supplier evaluation, negotiation preparation, contract-term review, and translating technical requirements into sourcing criteria. The role requires collaboration with engineering, supplier development, quality, and operations teams and is fully onsite in El Segundo with travel to supplier locations up to 30%.

Owns manufacturing and inspection processes for complex nuclear reactor components and assemblies. The role drives DFM/DFA, develops and qualifies production processes, creates manufacturing documentation and tooling, resolves defects, supports suppliers, and improves production repeatability, yield, throughput, cost, and scalability. Requires hands-on collaboration with design, quality, test, supply chain, technicians, and production personnel in a fully onsite environment.

Own manufacturing and inspection processes for complex nuclear reactor hardware, driving DFM/DFA, process qualification, tooling, documentation, supplier development, quality controls, and production scalability. Partner with design, quality, test, supply chain, and operations teams to troubleshoot manufacturing issues, implement corrective actions, and improve repeatability, throughput, yield, and cost. This hands-on role supports hardware builds, integration, and transition from prototype development to repeatable production.

Own the frontend of Radiant’s telemetry and fleet management platform for portable nuclear reactors. Build reliable, performant React and TypeScript interfaces for data analysis, device configuration, telemetry monitoring, and mission-critical operations. Collaborate across the Mission Software team and company stakeholders while contributing to complex UI systems, debugging, code reviews, and hardware-connected applications. This is a fully onsite role in El Segundo with occasional extended hours and weekend work as needed.

Supports the design, modeling, analysis, testing, validation, and troubleshooting of electrical systems, components, hardware, and instrumentation for portable nuclear microreactors. Collaborates with mechanical, software, and nuclear engineering teams; contributes to schematics, documentation, technical reports, laboratory work, and prototyping.

Assist with tooling for simulation software and contribute to internal products supporting simulation and analysis results. The role requires a software-related degree, familiarity with object-oriented programming in languages such as Python, C++, or C#, and basic software development and Git knowledge. Candidates should be graduating in December 2026 or Spring 2027. Interest in simulation tools, software testing, distributed development, and hardware or physics is encouraged.

Contribute to the design, analysis, testing, integration, and validation of portable nuclear microreactors. The role owns engineering deliverables from concept through build, supports system-level testing and troubleshooting, collaborates across disciplines, and communicates results through design reviews, technical reports, and presentations. Candidates should have a mechanical or aerospace engineering degree, strong engineering fundamentals, hands-on design-and-build experience, and proficiency with CAD, analysis tools, and laboratory instrumentation.

Develop and refine DOE- and NRC-compliant reactor operating procedures integrating hardware, software, simulators, digital twins, and human-machine interfaces. Collaborate with multidisciplinary engineering teams to improve operator workflows, procedure usability, testing, commissioning, and safe reactor operations. Support software and hardware testing while applying human factors principles to operational documentation and interfaces.

Develop, analyze, fabricate, and improve production tooling for complex reactor mechanisms and structures. The role partners with design and manufacturing engineers, supports semi-remote reactor fueling and defueling operations, and identifies suppliers for tooling components and fabrication. Candidates should have an engineering degree, mechanical design experience, analytical and finite element analysis knowledge, and familiarity with electromechanical systems and lifting equipment.

Support supplier contracts, purchase orders, sourcing negotiations, delivery performance, cost savings, supply chain risk mitigation, and procurement process improvements. The coordinator will help maintain supplier relationships and ensure materials arrive on schedule for Radiant’s microreactor development and operational needs.

Administer Teamcenter and NX, including user access, engineering support, deployments, upgrades, testing, licensing, documentation, training, vendor coordination, CAD configuration, templates, libraries, and organizational standards. The role supports engineering users and maintains PLM and CAD data integrity while developing deeper platform ownership under the PLM Architect.

Owns Radiant’s Microsoft 365 GCC High, Entra identity infrastructure, IAM automation, Intune endpoint management, email security, Purview information protection, SaaS platforms, and AWS workloads. The role builds automated joiner-mover-leaver processes, manages access and compliance controls, supports CMMC evidence collection, delivers platform projects, and maintains networking fundamentals. This is a fully onsite, high-ownership systems administration position requiring occasional extended hours and weekend work.

Lead verification of safety-critical FPGAs for nuclear reactor safety, control, instrumentation, sensor processing, actuator handling, and communications. Develop SystemVerilog UVM/OVM testbenches, verification plans, regression suites, constrained-random tests, and coverage analysis. Collaborate with RTL, hardware, embedded software, and test engineers to resolve bugs and close functional coverage. The role is fully onsite in El Segundo and may require extended hours or weekends.

Owns visibility and delivery across Radiant’s IT and security program portfolio. The role establishes tracking systems, operating cadences, integrated schedules, risk management, reporting, and escalation processes across infrastructure, construction, compliance, and site programs. It coordinates IT buildout with facilities and contractors, supports CMMC and NIST compliance tracking, produces technical documentation and executive updates, and drives accountability across teams without direct authority. The position is fully onsite in El Segundo with up to 15% travel.

Design, analyze, fabricate, and improve custom production equipment for manufacturing and assembling portable nuclear microreactors. Collaborate with design and manufacturing engineers, develop semi-remote fueling and defueling equipment, and manage suppliers for components and fabrication. The role requires mechanical equipment design, CAD modeling, fabrication drawing development, GD&T, and analytical or finite element analysis methods. This position is fully onsite in El Segundo and may require extended hours or weekends.

Designs and develops critical reactor structures, including shielding, container, graphite, and metallic systems. Performs trade studies, material selection, thermomechanical and dynamic structural analyses using hand calculations and finite element tools. Leads assembly, manufacturing, integration, testing, BOM management, supplier development, schedules, and subsystem FMEA. Collaborates across engineering disciplines and works onsite in El Segundo, with extended hours as needed.

Own full-cycle technical recruiting to source, assess, and close top talent across technical and corporate roles. Partner with hiring managers and leadership to define hiring strategies, develop structured processes, drive proactive sourcing and employer branding, represent Radiant at events, and use data to improve recruitment outcomes.

Own top-of-funnel sourcing to build pipelines of passive technical and corporate talent. Design outreach campaigns, leverage sourcing tools, track pipelines, provide market intelligence, represent Radiant at events, and partner with recruiters and hiring managers to fill engineering-heavy roles.