Senior Build Engineer, Turbomachinery
Radiant Industries Inc. · El Segundo, CA · Manufacturing and hardware engineering · posted today
Radiant Industries Inc. · El Segundo, CA · posted 12 days ago
By AtiveSite · Published 07/11/2026 · Updated 09/11/2026 · Every figure is linked to its source below.
| Employer | Radiant Industries Inc. |
|---|---|
| Location | El Segundo, California |
| Field | Engineering, Construction and Energy › Manufacturing and hardware engineering |
| Level | not stated |
| Source category | Engineering, Reliability & Quality |
| Posted | 2026-10-28 (12 days ago) |
| Work arrangement | On-site at the location listed |
| Pay | Not published in the source listing |
Radiant is an El Segundo, CA-based company building the world's only mass-produced, transportable nuclear microreactors. The U.S. grid is under growing strain, with power demand accelerating, driving higher utility costs, rising carbon emissions, and interconnection backlogs. Radiant has a solution, transportable, on-site power. Our first reactor, Kaleidos, is 1 megawatt: small enough to be factory-built, transported by land, sea, or air, and deployed wherever power is needed. 1 MW can power 1000 homes for five years. Ship it back and we refuel for a 20 year operating life. We made energy a product that can be used for critical infrastructure like military bases, data centers, hospitals, and remote sites, as well as the commercial main street businesses that keep America running. Founded in 2020, Radiant is under contract to deliver power to the U.S. Army, Navy and Air Force and has signed pre-order agreements with Equinix, with deployments beginning in 2028.
We are looking for a Supply Quality Engineer who builds supplier programs that prevent problems rather than react to them. You will own the development, qualification, and long-term reliability of Radiant's supply base — establishing the processes, standards, and supplier capabilities that ensure the right part arrives to the right standard, every time. While you'll have the technical depth to handle non-conformances and corrective actions when they arise, your primary focus is upstream: strengthening supplier processes, closing capability gaps, and building a supply base that performs without constant intervention.
This is a builder role: the old house is being brought down, and a new foundation is being poured, but we still need to build the structure, apply the finishes, and pass final inspection. You'll own what exists, upgrade aging systems, and create something the industry hasn't seen before.
We're not here to maintain the status quo in nuclear quality — we're here to raise the bar. Radiant is building a supplier reliability program from the ground up with a singular goal: the right part, to the right standard, on time, every time. If you want to do the most meaningful quality work of your career in an industry that hasn't been disrupted in decades, this is that opportunity.
Responsibilities & Duties:
Own the supplier qualification and onboarding process end-to-end — pre-assessments, capability reviews, audit execution, and formal approval to the Approved Supplier List.
Own, refine, and expand quality program documentation — including quality clauses, commodity-specific requirements, and the Supplier Quality Manual — building on existing foundations and authoring what doesn't yet exist.
Develop supplier capability improvement plans — identify process gaps, partner with suppliers to close them, and track progress against defined milestones before problems reach Radiant's dock.
Own Radiant's procurement assurance and acceptance framework — define how items are accepted across supplier types and quality levels, establish purchase order quality requirements, certifications, material traceability, and compliance documentation, and build toward a graded, systematized model.
Execute supplier audits and manage supplier performance — audit against Radiant quality program requirements, author findings to closure, and drive structured improvement plans with emphasis on early intervention over lagging indicators.
Partner cross-functionally with design engineering, manufacturing, and materials teams to translate technical requirements into supplier-facing quality requirements before parts are ordered.
Process and disposition supplier quality issues when they arise — deviation requests, non-conformance reports, supplier corrective action requests, root cause analysis, and verification of corrective action effectiveness.
Required Qualifications & Skills:
Bachelor's degree in Engineering, Quality, Materials Science, or a related technical field
3–6 years of hands-on experience in supplier quality, supplier development, or supplier reliability engineering in a regulated industry (nuclear, aerospace, defense, or medical device)
Demonstrated ability to independently process supplier quality transactions: deviation requests, non-conformance reports, supplier corrective action requests, purchase order quality reviews, and cert package review — without step-by-step guidance
Proven experience owning or drafting quality program documents: quality clauses, supplier requirements, inspection instructions, or equivalent
Working knowledge of ISO 9001, AS9100, or equivalent quality management systems, including supplier audit methods and corrective action management
Desired Qualifications & Skills:
Experience in the nuclear industry or direct familiarity with NQA-1, 10 CFR 50 Appendix B, 10 CFR 21, ASME BPVC Section III and/or VIII
Manufacturing process depth in one or more of the following: machining, welding, casting, forming, special processes, or precision fabrication — sufficient to audit a supplier's process controls and identify gaps
Certified NQA-1 Lead Auditor, or documented progress toward certification
Qualified Inspector status (ASME Section III) or working toward it
Exposure to ISO 17025 accredited laboratories or third-party inspection bodies
Experience at an early-stage company or program where processes were built or advanced, not inherited
Who You Are:
You take full ownership of your domain — you identify what needs to be built or improved, write the procedure when one doesn't exist, and drive it without waiting to be asked.
You solve problems from first principles — when a standard doesn't map cleanly to the situation, you reason from the underlying requirement rather than defaulting to precedent or guesswork.
Attention to detail is non-negotiable — in a safety-critical, auditable environment, imprecision in a quality record, a clause, or an audit finding has real downstream consequences.
You hold suppliers — and yourself — to a high standard, and you're energized by preventing failures rather than resolving them — you'd rather fix the supplier's process than write the corrective action.
You care about the mission: bringing clean, reliable energy to places that need it most, and you understand that quality in this industry is not bureaucratic overhead — it's a safety imperative.
You thrive in a fast-paced, resource-constrained environment where the work is hard and the stakes are real.
Additional Requirements:
Must be willing to work extended hours and weekends as necessary to accomplish our mission.
Must work 100% onsite at El Segundo HQ.
Stock: Substantial incentive stock plan for all full-time employees.
Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
One Medical: Sponsored memberships for employees and their dependents.
Vision: 100% top tier plan coverage + 50% for dependents.
Dental: 100% top tier plan coverage, orthodontia extra, 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.
Nuclear Engineering Certificate Program: 100% covered educational program with Penn State University, for eligible employees, to rapidly upscale into nuclear.
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.
Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s full-time new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.
The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com.
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.
Field: Engineering, Construction and Energy Sub-niche: Manufacturing and hardware engineering All jobs at Radiant Industries Inc. Jobs in California Jobs in El Segundo, CA California state guide
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El Segundo, CA is not one of the cities with its own page in our guides, so here is the state: California.
California is in the West region (Pacific division) and has 39,287,376 residents (the 1st largest of the 50 states and DC by population), with a median age of 37.9. Its economy produced about $4,438,822 million in the latest four quarters (BEA), 1st among states and DC, equal to $112,983 per resident.
The unemployment rate was 5.1% in 2026M09, which is 49th lowest of 51 (1st is the lowest). Employers had job openings equal to 3.6% of employment, 37th highest of 51, a measure of how hard it is to hire. The median wage across all occupations is $58,240 a year ($28.00 an hour), 14% above the national median ($58,240 against $50,980).
The occupations with the most jobs in California are Home Health and Personal Care Aides (970,150 jobs, median $34,320); Fast Food and Counter Workers (449,840 jobs, median $42,280); Retail Salespersons (376,460 jobs, median $38,440); Laborers and Freight, Stock, and Material Movers, Hand (355,500 jobs, median $44,710); Registered Nurses (338,940 jobs, median $140,270). Among occupations with at least 2,000 jobs, the best paid are Airline Pilots, Copilots, and Flight Engineers (median $353,900); Psychiatrists (median $353,500); General Internal Medicine Physicians (median $313,890). Compared with the nation, the state is most specialised in farming, fishing, and forestry (4.1 times the national share of workers) and healthcare support (1.5 times the national share of workers).
Prices are above the national average in California: the regional price parity is 110.7 against 100 for the whole country (51st lowest of 51). Median gross rent is $2,036 a month and the median household income $99,122, so a year of rent equals 24.6% of income; the median home value is $734,700. The state minimum wage is $16.90 (the higher of state and federal rates applies to most workers). State income tax on wages: Graduated, top rate 13.30%. It is not a right-to-work state, so union contracts can require fees from covered workers. It runs a state paid family and medical leave programme.
27.0% of residents were born abroad and 37.1% of adults hold a bachelor's degree or higher. Among workers, 65.7% drive alone, 2.9% use public transit and 17.2% work from home; 19.4% commute 45 minutes or more.
Places within 50 miles (straight line) of El Segundo, CA that have a guide, with what living there costs. No pay estimate is shown because the title did not match one occupation.
| Place ⇅ | Distance from the job city ⇅ | Median rent ⇅ | Median home value ⇅ | Median household income ⇅ | Commute 45+ min ⇅ | Rent as % of occupation pay ⇅ | Open jobs there ⇅ |
|---|---|---|---|---|---|---|---|
| Hawthorne, CA | 4 mi | $1,782 | $863,400 | $75,848 | 18.8% | n/a | Jobs |
| Inglewood, CA | 6 mi | $1,787 | $792,800 | $72,750 | 22.6% | n/a | — |
| Torrance, CA | 7 mi | $2,280 | $1,074,700 | $116,217 | 17.5% | n/a | Jobs |
| Los Angeles, CA | 8 mi | $1,933 | $921,200 | $81,939 | 22.2% | n/a | Jobs |
| Santa Monica, CA | 8 mi | $2,402 | $1,755,500 | $114,885 | 14.1% | n/a | Jobs |
| Carson, CA | 11 mi | $1,956 | $704,400 | $108,703 | 17.4% | n/a | — |
| Compton, CA | 11 mi | $1,664 | $580,200 | $78,465 | 19.2% | n/a | Jobs |
| South Gate, CA | 14 mi | $1,531 | $636,300 | $74,571 | 23.7% | n/a | — |
| East Los Angeles, CA | 17 mi | $1,494 | $643,100 | $68,741 | 21.9% | n/a | — |
| Downey, CA | 17 mi | $1,937 | $796,600 | $90,699 | 23.6% | n/a | — |
| Bellflower, CA | 17 mi | $1,830 | $705,700 | $78,722 | 20.3% | n/a | — |
| Long Beach, CA | 17 mi | $1,871 | $806,600 | $87,430 | 21.0% | n/a | Jobs |
| Lakewood, CA | 18 mi | $2,347 | $827,200 | $119,177 | 20.4% | n/a | — |
| Norwalk, CA | 20 mi | $2,090 | $644,700 | $100,085 | 21.9% | n/a | — |
| Burbank, CA | 20 mi | $2,192 | $1,089,100 | $97,082 | 16.6% | n/a | Jobs |
| Alhambra, CA | 20 mi | $1,939 | $857,800 | $88,024 | 23.0% | n/a | — |
| Glendale, CA | 21 mi | $2,182 | $1,102,300 | $88,393 | 16.9% | n/a | Jobs |
| Whittier, CA | 24 mi | $1,906 | $822,600 | $97,201 | 28.1% | n/a | — |
| Pasadena, CA | 24 mi | $2,265 | $1,093,300 | $105,192 | 18.3% | n/a | Jobs |
| Buena Park, CA | 24 mi | $2,206 | $838,800 | $110,550 | 20.9% | n/a | — |
We could not match this title to one occupation, so here are the other sub-niches in Engineering, Construction and Energy, where your skills may carry over:
Construction and field engineering (447) Energy and utilities (599)
How far El Segundo, CA is from the 20 largest US cities, in straight-line miles (not driving distance). Click a column to sort.
| From ⇅ | Straight-line distance (miles) ⇅ | Population of that city ⇅ |
|---|---|---|
| Los Angeles, CA | 8 mi | 3,857,263 |
| San Diego, CA | 106 mi | 1,389,526 |
| San Jose, CA | 302 mi | 990,138 |
| Phoenix, AZ | 365 mi | 1,642,323 |
| San Francisco, CA | 369 mi | 830,235 |
| Denver, CO | 850 mi | 718,877 |
| Seattle, WA | 969 mi | 754,195 |
| Oklahoma City, OK | 1,191 mi | 697,125 |
| San Antonio, TX | 1,208 mi | 1,479,835 |
| Fort Worth, TX | 1,217 mi | 963,194 |
| Austin, TX | 1,233 mi | 979,539 |
| Dallas, TX | 1,250 mi | 1,307,930 |
| Houston, TX | 1,379 mi | 2,328,253 |
| Chicago, IL | 1,753 mi | 2,711,226 |
| Indianapolis, IN | 1,820 mi | 885,860 |
| Columbus, OH | 1,988 mi | 914,802 |
| Charlotte, NC | 2,128 mi | 903,844 |
| Jacksonville, FL | 2,154 mi | 977,670 |
| Philadelphia, PA | 2,403 mi | 1,579,706 |
| New York, NY | 2,463 mi | 8,483,844 |
| City ⇅ | Straight-line distance ⇅ | Open jobs ⇅ |
|---|---|---|
| Culver City, CA | 7 mi | 8 |
| Los Angeles, CA | 8 mi | 734 |
| Compton, CA | 11 mi | 3 |
| Beverly Hills, CA | 12 mi | 4 |
| Huntington Park, CA | 13 mi | 2 |
| Encino, CA | 18 mi | 4 |
| Burbank, CA | 20 mi | 6 |
| Costa Mesa, CA | 34 mi | 20 |
| Newport Beach, CA | 38 mi | 2 |
| Anaheim, CA | 38 mi | 50 |
| Irvine, CA | 41 mi | 49 |
| Carlsbad, CA | 85 mi | 3 |
| Bakersfield, CA | 106 mi | 30 |
| San Diego, CA | 106 mi | 454 |
| El Cajon, CA | 114 mi | 1 |
Radiant Industries Inc. is the employer in this listing. See all its open jobs here →
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A private-sector role in engineering, construction and energy (manufacturing and hardware engineering) listed 12 days ago. The full description is on this page and on the employer's page.
El Segundo, CA.
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It was posted on 2026-10-28 (12 days ago). Jobs older than 90 days are not shown.
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