Top Tech Jobs & Startup Jobs in Los Angeles, CA

Build and lead Radiant's investor relations function: develop investor strategy, materials, and reporting; support financings and diligence; manage investor relationships, board materials, investor days, and investor-facing communications across institutional and VC stakeholders.

The role involves managing daily content production across social media, creating visual assets, designing presentations, and drafting press materials for a brand.

The Staff Mechanical Engineer will own the design and production of fluid systems, perform thermal and fluids analysis, and manage suppliers and schedules, ensuring system performance and integrity.

The Senior Mechanical Engineer will design and test fluid systems, perform thermal and fluids analysis, and manage project components, including supplier selection and risk analysis, for nuclear microreactors.

Own Radiant's external media presence: build reporter and podcaster relationships, secure executive bookings and feature coverage, coordinate investor amplification, prepare spokespeople, manage crisis communications, monitor competitors, and report media metrics.

Design and develop mechanisms for safety and control features in the new commercial reactor. Conduct trade studies, analyze designs, and manage integration processes.

Hands-on role assembling, integrating, and preparing turbomachinery hardware (compressors, turbines, rotors, bearings, seals, motors) for first-article testing. Develop assembly instructions, alignment and torque procedures, support rotor stacking, balancing, and tooling. Collaborate with design, test, and manufacturing teams, document builds, troubleshoot issues, and iterate on assembly processes while receiving mentorship and growing technical skills.