Radiant Jobs - Page 2
Open positions at Radiant, newest first. Each listing links to the company's own application page.
- Open positions
- 95
Newest Radiant openings
Senior Accounting Manager
On-siteEl Segundo, CA (On-site) · 23 days ago
We are seeking an experienced Accounting Manager to lead and manage day-to-day accounting operations, ensure compliance with GAAP, and support the month-end close and reporting processes.
- Full-time
- Director
- 5+ years
- U.S. GAAP
- ERP systems
- internal controls
El Segundo, CA (On-site) · 23 days ago
Radiant is seeking a Senior Safety Analysis Engineer to lead reactor safety analyses supporting the design, testing, and deployment of Kaleidos.
- Full-time
- Senior
- 5+ years
- RELAP5-3D
- thermal-hydraulics
- deterministic safety analysis
El Segundo, CA (On-site) · 23 days ago
Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe…
- Full-time
- Senior
- 3+ years
- Oracle Fusion
- SAP S/4HANA
- NetSuite
El Segundo, CA (On-site) · 30 days ago
Radiant is seeking a Senior Software Engineer to own the frontend for our in-house telemetry and fleet management platform.
- Full-time
- Senior
- 5+ years
- React
- TypeScript
- WebSockets
Mechanisms Engineer
On-siteEl Segundo, CA (On-site) · 30 days ago
Radiant is seeking a highly motivated Mechanisms Engineer to design and develop critical mechanisms within Kaleidos.
- Full-time
- Senior
- 3+ years
- mechanism design
- finite element analysis (Abaqus, Ansys)
- stress analysis
D.C., WA (On-site) · 30 days ago
Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe…
- Full-time
- Mid-level
- calendar and travel coordination
- executive support
- office coordination
El Segundo, CA (On-site) · 30 days ago
Radiant is seeking a Staff Manufacturing Engineer to help transition Kaleidos from a first-of-a-kind reactor build into a repeatable, scalable production system.
- Full-time
- Lead / Staff
- 8+ years
- DFM/DFA
- GD&T
- tolerance analysis
El Segundo, CA (On-site) · 30 days ago
Radiant is seeking a Senior Manufacturing Engineer to help transition Kaleidos from a first-of-a-kind reactor build into a repeatable, scalable production system.
- Full-time
- Senior
- 5+ years
- DFM/DFA
- GD&T
- tolerance analysis
Construction Manager
On-siteOak Ridge, TN (On-site) · 30 days ago
We are building a first-of-kind advanced nuclear manufacturing facility in Oak Ridge, Tennessee and are seeking a hands-on Construction Manager / Owner’s Representative to drive execution…
- Full-time
- Lead / Staff
- 7+ years
- construction sequencing
- schedule control
- change management
El Segundo, CA (On-site) · 30 days ago
Radiant is looking for an Indirect Procurement Associate to support sourcing and procurement of indirect goods and services - Facilities, IT, Professional Services, MRO, consumables, and…
- Full-time
- Entry level
- 1+ years
- supplier evaluation
- contract support
- ERP/MRP systems
Supply Reliability Engineer
On-siteEl Segundo, CA (On-site) · 30 days ago
We are looking for a Supply Reliability Engineer who builds supplier programs that prevent problems rather than react to them.
- Full-time
- Senior
- 3+ years
- ISO 9001
- AS9100
- supplier audit
Senior Build Engineer, Turbomachinery
Direct ATSEl Segundo, CA · 30 days ago
Radiant is seeking a highly motivated Senior Build Engineer to lead the assembly, integration, and build execution of high-performance turbomachinery systems for our portable nuclear…
El Segundo, CA (On-site) · 30 days ago
Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and implementing nuclear-specific testing operations at our 2026 demonstration.
- Full-time
- Mid-level
- 2+ years
- MCNP
- OpenMC
- Serpent
Buyer, Direct Commodities
Direct ATSEl Segundo, CA · 30 days ago
Radiant is seeking a proactive and strategic Buyer to manage the sourcing, negotiation, and acquisition of direct commodities, components, materials, and services necessary for our…
Technical Program Manager
On-siteEl Segundo, CA (On-site) · 30 days ago
Radiant is building a first-of-its-kind reactor, and delivering it to some of the most demanding customers in the world.
- Full-time
- Lead / Staff
- 5+ years
- program management
- complex capital equipment delivery
- cross-functional dependency management
El Segundo, CA (On-site) · 30 days ago
Radiant is seeking a highly motivated Senior Mechanical Engineer to design and develop critical structures within Kaleidos.
- Full-time
- Senior
- 6+ years
- finite element analysis
- Abaqus
- Ansys
El Segundo, CA (On-site) · 30 days ago
Radiant is seeking a Staff Loads & Dynamics Engineer to own and execute structural loads, vibration, and dynamic analyses for complex mechanical systems associated for Kaleidos, the…
- Full-time
- Lead / Staff
- 5+ years
- finite element analysis
- ANSYS
- Abaqus
El Segundo, CA · 30 days ago
Radiant is seeking an Engineering Manager, HIL, to lead the electrical engineering team responsible for test infrastructure and system integration for Kaleidos, Radiant's commercial microrea
Staff Structures Engineer
On-siteEl Segundo, CA (On-site) · 30 days ago
Radiant is seeking a highly motivated Staff Structures Engineer to design and develop critical structures within Kaleidos.
- Full-time
- Lead / Staff
- 7+ years
- finite element analysis
- Abaqus
- Ansys
Lead Nuclear Engineer
On-siteEl Segundo, CA (On-site) · 30 days ago
Radiant is seeking a Lead Nuclear Engineer to provide technical and people leadership within the nuclear design and analysis organization supporting Kaleidos.
- Full-time
- Lead / Staff
- 5+ years
- MCNP
- OpenMC
- neutron transport theory
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