Jobs in the United States

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Added 1 min ago
Collibra Solution Architect and Platform Lead
EY
Jefferson City, MO
The role requires a good working knowledge of the IT infrastructure within EY but more importantly a great perspective on the business and the internal stakeholders we serve. The functional…
Added 5 mins ago
Director, Intelligent Automation & Advanced Analytics
INL Professional
Idaho Falls, ID
Added 5 mins ago
VP, Commercial & Medical Affairs IT Business Partner
Madrigal
PA
…closely with Data, AI, Cybersecurity, Enterprise Architecture, Infrastructure, PMO, and IT Compliance to ensure solutions are scalable, compliant, secure, and aligned to enterprise…
Added 6 mins ago
Internal Audit Analyst
Planet
San Francisco, CA
This is a full-time, hybrid role which will require you to work from our San Francisco office 3 days per week
Added 6 mins ago
Land Mobile Radio (LMR) Technician – Motorola Systems
Fathom Management LLC
Brunswick, GA
You will be the on-site Motorola SME, supporting both infrastructure and subscriber equipment.
Added 7 mins ago
SB
Welder
Stony Brook Structures of Florida
Calverton, NY
- $28 to $36 USD / hour
…integral part of the construction process, as it provides a strong infrastructure foundation. The ideal candidate is a hard worker with great attention to detail and proven experience as a…
Added 7 mins ago
Reliability Engineer
ServiceNow
Santa Clara, CA
Design and enhance Kubernetes-based platforms supporting scalable test infrastructure, release automation, cloud-native workloads, and developer self-service.
Added 7 mins ago
Staff Site Reliability Engineer - Federal
ServiceNow
Santa Clara, CA
The Federal SRE Team has 3 shifts that provide 24x7 production support for our Government Community Cloud infrastructure.
Added 8 mins ago
A
Low Voltage Technician
Aerotek
Brownsburg, IN
- $22 to $26 USD / hour
Work consistently in a full-time schedule of approximately five 10-hour days per week
Added 8 mins ago
Senior Director of AI Diagnostics
Natera
San Carlos, CA
AI infrastructure: Experience building or leading the adoption of MLOps, model registries, or large-scale training environments.
Added 8 mins ago
Senior Director, AI Diagnostics
Natera
Remote, United States
AI infrastructure: Experience building or leading the adoption of MLOps, model registries, or large-scale training environments.
Added 8 mins ago
Software Engineer
Autodesk Inc.
Novi, MI
Contribute to cloud infrastructure and deployment pipelines on platforms such as AWS or Azure.
Added 9 mins ago
IG
Secret Cleared ISSE
Insight Global
Clearfield, UT
- From $78 USD / hour
- Security reviews of infrastructure, servers, routers, network appliances, software, or system changes
Added 10 mins ago
CO
Water/Wastewater Infrastructure Construction Inspector
City of Raleigh North Carolina
Raleigh, NC
- $63,945 to $95,918 USD / year
Raleigh Water is seeking an experienced Water/Wastewater Infrastructure Construction Inspector to join it's team. This role coordinates and oversees the installation, repair, and upgrade of…
Added 10 mins ago
Solution Architect
DynatraceLLC
Boston
The Enterprise Solution Architect is a combination of an infrastructure, automation expert, coder, trusted advisor and cloud services authority who will be responsible for leading the…
Added 11 mins ago
Product Manager
NICE
Atlanta, GA
Working knowledge of enterprise infrastructure: Windows Server, virtualization, databases, networking and storage, and how they affect compatibility and supportability.
Added 12 mins ago
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Sr. Dev Ops Engineer
Astrolab
Remote, United States
- $155,000 to $195,000 USD / year
Astrolab is seeking an experienced Sr. Dev Ops Engineer to stand up infrastructure to support safety critical software development and testing. As a Senior Dev Ops Engineer at Astrolab, you…
Added 13 mins ago
Manager, Cyber and Technology Risk
KPMG LLP
Miami, FL · Orlando, FL · Tallahassee, FL · Tampa, FL
Lead technology risk, cybersecurity, and IT control assessments across cloud, infrastructure, applications, third-party ecosystems, and emerging technologies; evaluate and enhance IT…
Added 13 mins ago
Senior Program Manager
Crux AI
Palo Alto, CA
Built to set the gold standard for integrated AI infrastructure
Added 14 mins ago
Principal Software Engineer (AI)
American Bankers Insurance Company of Florida
United States
Apply infrastructure-as-code and agent-driven automation to make releases faster and more reliable.
Added 16 mins ago
RI
Lead, Fluid Systems Engineering
Radiant Industries
El Segundo, CA
- $150,500 to $207,900 USD / year
…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…
Added 16 mins ago
Full Stack Web Developer
NW Natural
Portland, OR
Candidates must reside within commuting distance of the office or be willing to relocate to the Portland metropolitan area · Minimum of 5 years of experience required for level 3
Added 16 mins ago
Aerodynamics Engineering Intern
REGENT
North Kingstown, RI
…intersection of aerodynamics and software, helping strengthen the infrastructure that carries our CFD simulations from job setup through post-processing. You won't just build and refine…
Added 16 mins ago
Systems Engineer
Humana
Louisville, KY · Arlington, VA · Atlanta, GA · Boston, MA · Charlotte, NC · Chicago, IL · Dallas, TX · Fort Lauderdale, FL · Nashville, TN · New York, NY · Tampa, FL
The engineer works closely with infrastructure, application, security, vulnerability management, and change management teams to resolve patching issues, remediate vulnerabilities, improve…
Added 17 mins ago
SN
Director of AI Solutions Partners
Southern New Hampshire University
Remote, United States
- $96,954 to $155,153 USD / year
Employees must reside in, and work from, one of the above approved states

Radiant Industries

Lead, Fluid Systems Engineering

El Segundo, CA, United States

$150,500 to $207,900 USD / year

Apply on jobs.ashbyhq.com About employer

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Job details

Pay: $150,500 to $207,900 USD / year
Experience: 8+ years of experience designing, building, and testing fluid systems, with demonstrated technical leadership at a senior or staff level.
Posting language: English
Posted: Nov 10, 2026

Original job description

ABOUT RADIANT

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.

About the Role

Radiant is seeking an impactful Lead, Fluid Systems Engineering to build and lead the team that owns critical Kaleidos fluid systems from preliminary design through build and production. These systems include the primary loop subsystems and the power conversion loop, which convert heat from the reactor core into electrical power. As a player-coach, you will set technical direction at a staff level, stay hands-on in the hardest design and analysis problems, and hire, develop, and lead a team of fluid systems engineers. You will have an instrumental impact on fueling the first new commercial reactor design in over 50 years.

Leadership

Lead, mentor, and grow a team of fluid systems engineers; set clear goals, give regular feedback, and support career development.
Recruit and hire top engineering talent, and build a team culture of ownership, rigor, and constructive communication.
Own team planning, prioritization, and resourcing, including subassembly design, manufacturing, and test schedules.
Partner with leadership and other functional areas to collect requirements, align priorities, and resolve cross-team tradeoffs.

Technical Ownership

Own the architecture and end-to-end engineering of fluid systems and components, including compressors, valves, and heat exchangers, and set the technical bar for the team.
Personally tackle the most complex thermal and fluids analysis, using first-principles hand calculations and finite element tools to drive design decisions, verify performance, and ensure structural integrity.
Lead trade studies to optimize the system and meet program requirements.
Establish and review manufacturing/assembly instructions, test plans, and BOM management.
Drive supplier identification, selection, and development for all components.
Own subsystem risk analysis (FMEA) and ensure design reviews are rigorous.
Provide expertise and clear, constructive feedback to engineers in other functions.

Required Qualifications & Skills

Bachelor’s degree from an accredited institution in Mechanical, Materials, Aeronautical, Civil, or Structural Engineering.
8+ years of experience designing, building, and testing fluid systems, with demonstrated technical leadership at a senior or staff level.
Experience leading or mentoring engineers, formally or informally, and a desire to grow as a people manager.
Experience with fluid system architecture design.
Proficient knowledge of fluid dynamics and thermodynamics.
Proficient knowledge of heat exchanger design and analysis methods.

Desired Qualifications & Skills

Prior experience managing engineers, including hiring and performance feedback.
Knowledge of thermodynamic power cycles.
Experience designing piping systems for thermal growth using hand calculations and FEA tools.
Experience with process piping design and testing codes, such as ASME B31.3 and ASME PCC-2.
Experience with fluid system modeling via MATLAB/Python.
Experience with design for manufacturability and ramping up hardware builds in a production environment.
Experience designing and operating test stands.
Extreme ownership of work and a high degree of responsibility.
Excellent communication across multidisciplinary teams.
Prior nuclear experience is not required.

Additional Requirements

Willingness to work extended hours and weekends as necessary to accomplish our mission.
Must work 100% onsite at El Segundo HQ.

BENEFITS AND PERKS

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.

Apply on jobs.ashbyhq.com About employer

More about this job

Skills

Lead a team
Leadership
Communication skills
Prioritization
Assembly
Structural engineering
Coaching
Architectural design
FEA
The MathWorks MATLAB
Python

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Work requirements

Jobs in the United States