Radiant jobs, careers, and hiring context

Explore Radiant careers: 104 open roles hiring now. Find jobs at Radiant with direct links to apply. Funding stage: Series D. Headcount: 201-500. Radiant is pioneering mass-produced portable nuclear microreactors, with its flagship Kaleidos reactor delivering 1 MW of clean, zero-emission power in a shipping container-sized form factor. Valued at $1.8 billion, the company is building its factory in Oak Ridge, Tennessee.

This page summarizes open roles, company profile signals, and official application paths so candidates can quickly evaluate fit before applying. Use the role list below to identify team focus, review location patterns, and jump to source listings. For broader comparison across the market, continue to the full company directory and jobs explorer.

Browse all jobsBack to companies
Open roles
104
Funding stage
Series D
Total funding
$573.62M

Key facts

Radiant is a Series D stage AI startup, founded in 2019, with $573.62M in total disclosed funding. Its most recent round was a $350M Series D in Dec 2025. It currently lists 104 open roles across El Segundo, CA, Oak Ridge, TN, Washington, D.C.. Source: Fast AI Jobs company dataset, updated Oct 2026.

Related topic tags

Climate TechInfrastructureManufacturingDefense Tech

Sample open roles from this company

Role links below go directly to official listing pages. Use them as a fast path while the full interactive view loads.

More Series D AI startups hiring

Legora (306)K2 Space (250)True Anomaly (205)Celonis (194)Base Power (187)Fivetran (176)

Company profile last updated on Oct 15, 2026.