Lead reactor kinetics modeling and calculations for safety analyses and Digital Twin simulations, document methods, and support nuclear analyses.

The Quality Assurance Manager will lead QA processes, ensuring compliance with NQA-1 and ASME standards, driving continuous improvements, and fostering a QA culture.

The Nuclear Systems Engineer will design procedures for reactor operations, ensuring compliance and enhancing human-machine interfaces, while gaining operational experience.

Design and test helium circulator turbomachinery for a nuclear microreactor, oversee engineering tasks, and perform thermal/fluids analysis.

The Government Affairs Strategist will develop strategic initiatives to influence public policy, build government relationships, and protect Radiant's priorities at the federal level.

Lead business generation with the U.S. government to secure funding for nuclear microreactors, focusing on DOD and related agencies. Establish requirements and drive growth in military logistical superiority.

The Senior Controls Systems Engineer will lead the design, development, and validation of control systems for a nuclear microreactor, overseeing algorithms and hardware tests.

The Mechanical Integration Engineer will manage the integration of turbomachinery and electrical systems, ensuring safety and structural integrity while optimizing efficiency. Responsibilities include design strategy, communication with hardware teams, and conducting hardware verification activities.

The Senior Software Engineer will enhance simulation performance, create data analysis tools, and automate software testing while collaborating with teams on a nuclear microreactor project.

As a Mechanical Engineering Intern, you will work on the design, assembly, and testing of the Kaleidos Development Unit while learning from a mentor and cross-functional team.

Manage and maintain Microsoft-based infrastructure, software rollouts, compliance, and automations to support engineers in a high-performing IT environment.

The Senior Power Electronics Engineer designs high voltage power electronics for a nuclear power generator, including inverters and DC-DC converters while optimizing performance and conducting simulations.

As a Senior Fluids Systems Engineer, you will design and manage fluid systems related to the Kaleidos microreactor, including performing thermal analysis, component selection, and leading critical engineering tasks from design to production.

The Director of Accounting will manage all accounting activities, ensure compliance with US GAAP, lead audits, and improve financial controls.

The Senior Automation and Controls Engineer will design, build, and implement automated production systems, manage projects, and ensure compliance with safety and electrical regulations.

The Senior Manufacturing Engineer will collaborate with design engineers, manage manufacturing processes, and drive continuous improvements in production for the Kaleidos microreactor.

The Senior Materials Engineer will test and validate materials and manufacturing processes for the Kaleidos nuclear microreactor, contributing to the development of a portable, clean energy source.

The Lead Manufacturing Engineer will design and implement production processes for a nuclear microreactor, leading teams to improve manufacturing efficiency and product quality.

The Senior Technical Recruiter will manage the full-cycle recruitment process, partner with hiring managers, drive university recruitment, and enhance recruitment strategies in a fast-paced startup environment.

Develop turbomachinery for a supercritical CO2 heat engine, optimize designs, and oversee prototype testing to support portable clean power solutions.