Radiant · 11 hours ago
Senior Manufacturing Engineer
El Segundo, CA
Full-time
Onsite
Mid, Senior Level
$134K/yr - $208K/yr
4+ years expRadiant is an El Segundo-based startup focused on building portable nuclear microreactors. The Senior Manufacturing Engineer will collaborate with design engineers to innovate production methods, ensuring quality and reliable delivery of the Kaleidos demonstration unit for testing in 2026.
Clean EnergyEnergyEnergy EfficiencyRenewable Energy
No H1B
Responsibilities
Responsible for the manufacturing and inspection process for critical components and assemblies within the Kaleidos microreactor
Partner with design engineers to develop innovative production methods for complex mechanisms and structures
Develop, qualify, and refine manufacturing processes to meet all design and business requirements including safety, quality, efficiency, and delivery
Develop and execute manufacturing specifications and fabrication instructions
Manage manufacturing bill-of-materials (mBOM) for components and assemblies
Identify and develop appropriate suppliers for component sourcing and fabrication
Identify, plan, and execute capital equipment, machine, and layout upgrades to meet evolving production requirements
Drive initiatives for continuous improvement in manufacturing processes and product quality
Qualification
Required
Bachelor's degree from an accredited institution in mechanical, manufacturing, or other related engineering discipline
4+ years of experience with manufacturing of mechanical products in a production environment, preferably in high-tech or energy sectors
Preferred
Master's degree from an accredited institution in mechanical, manufacturing, or other related engineering discipline
Experience with machining and ancillary operations such as milling, turning, grinding, EDM of materials
Experience with interpreting engineering drawings and models, Geometric Dimensioning & Tolerancing (GD&T)
Experience with inspection systems including manual gauges and coordinate-measuring machine (CMM)
Experience with non-destructive testing/non-destructive evaluation (e.g. fluorescent penetrant inspection, radiography, eddy current)
Experience with custom machine design; electromechanical systems, motors, actuators, linear rails, bearings, lifting/rigging, etc
Experience with design of multi-component assemblies in CAD (NX or similar)
Strong problem-solving skills and attention to detail
Self-motivated with strong organizational, written, and oral communication skills
Demonstrated ability to work collaboratively with design and operations teams
Benefits
Substantial incentive stock plan for all full-time employees.
100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
Sponsored memberships for eligible employees and their dependents.
100% premium coverage for top tier plan + 50% for dependents.
100% premium coverage for top tier plan (including orthodontia) + 50% for dependents.
Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
Daily catered lunch. Free snacks and drinks.
Flexible PTO policy. Remote workday allocation.
Company and team-bonding events, happy hours and in-person camaraderie.
Beautiful El Segundo headquarters close to the Pacific Ocean.
Burgeoning satellite offices in Oak Ridge, TN and Washington, D.C., near Capitol Hill.
Company
Radiant
Radiant develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form.
51-200 employees
Funding
Current Stage
Late StageTotal Funding
$518.82MKey Investors
Boost VC,Draper AssociatesAlumni Ventures,DCVCAndreessen Horowitz
2025-12-17Series D· $300M
2024-11-14Series C· $165M
2023-04-18Series B· $40M
Leadership Team
Doug Bernauer
Chief Executive Officer
Recent News
alleywatch.com
2026-01-23
2026-01-07
The Motley Fool
2026-01-04
Company data provided by crunchbase