Jobs in the United States

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Added 5 mins ago
Customer Success Engineer - Instaclustr
NetApp
United States
Working alongside the Customer Success Manager (CSM), you will lead the technical customer engagement. The CSM drives the overall customer success plan; you bring the technical depth to…
Added 6 mins ago
Category sourcing manager, Technology/Hardware (Nashville, TN)
Starbucks Coffee Company
Nashville
The category sourcing manager, technology is a senior individual contributor and enterprise category leader responsible for setting the vision and commercial direction for a broad portfolio…
Added 7 mins ago
Retail Construction Project Manager
US AMR-Jones Lang LaSalle Americas, Inc.
Plano, TX · Phoenix, AZ
Technical Construction Knowledge: Strong working knowledge of architectural drawings, building systems, construction methods, and space planning principles. Ability to read and interpret…
Added 10 mins ago
Operations Manager, EPIC Lab
Applied Materials, Inc
Santa Clara, CA
The Operations Manager, EPIC Lab, is responsible for leading day-to-day lab operations to drive performance across Safety, Quality, Output, and Cost objectives by partnering closely with…
Added 10 mins ago
Senior Product Marketing Manager
Unity Technologies SF
San Francisco, CA · NY · Mountain View, CA
As a Product Marketing Manager, you'll own the marketing for product releases and features. You'll align on your work and then run it on your own judgment. Working with Product,…
Added 12 mins ago
Process Development Associate Scientist, Drug Product Visual Inspection Sciences
Amgen Inc.
CA
Let’s do this. Let’s change the world. In this vital role you will Amgen’s Drug Product Process Engineering team in the Drug Product
Added 17 mins ago
Fraud Analytics and Innovation Leader - Authentication
Merrill Lynch, Pierce, Fenner & Smith Inc
United States
Bachelor's degree preferably in a quantitative or technical discipline such as mathematics, statistics, operations research, engineering, computer science, finance, or business; Tableau…
Added 19 mins ago
Technical Project Manager – Pulsed Power Hardware Systems Engineering
x Varian Medical Systems, Inc.
United States
We are looking for a motivated technical project manager to join our Beam Generation Group, which develops the radiation-producing subsystem at the heart of Varian Radiation Oncology…
Added 22 mins ago
MT
Principal Account Manager, Hyperscaler
Micron Technology
San Jose
- $142,800 to $287,700 USD / year
JR117343 Principal Account Manager, Hyperscaler
Added 24 mins ago
RI
Quality Manager
Rivet Industries
San Jose, CA
- $175,000 to $215,000 USD / year
- Bachelor's degree in engineering or a related technical field
Added 26 mins ago
MQ
Senior Product Engineering Program Manager
Monarch Quantum
San Diego, CA
- $125,000 to $175,000 USD / year
Join our fast-paced and passionate team as a Senior Product Engineering Program Manager. As we scale, you will be instrumental in building our foundation from the ground up. This is a…
Added 27 mins ago
Principal Project Manager - Highway Design/Construction - Transportation
Parsons Transportation Group
OH
Works with Project Managers, Regional Managers and Technical Managers to appropriately assign engineering staff for the benefit of project delivery and pursuit success.
Added 27 mins ago
Sr. Project Manager- FAA (Dallas, TX)
Parsons Government Services Inc.
TX
Based at the project site, the On-Site Project Manager will serve as a primary interface among the FAA, Parsons’ program leadership, designers, contractors, subcontractors, vendors,…
Added 27 mins ago
Engineering Manager - Bridge Design/Build/Construction
Parsons Transportation Group
IN
Parsons is now hiring an Engineering Manager who can lead a team of professionals working on our expanding portfolio of infrastructure projects!
Added 29 mins ago
Desktop support-Windows operating system
NTT DATA Services, LLC
McKinney
Must have a valid driver’s license and personal vehicle for travel between client offices if necessary
Added 31 mins ago
CH
Senior Construction Manager
CPS HR Consulting (Client Recruitments)
Greenwood Village, CO
- $135,000 to $155,000 USD / year
…northwest Douglas County. Reporting to the Capital Programs Manager, the Senior Construction Manager will support planning and preconstruction and help lead projects through construction,…
Added 32 mins ago
Product Manager, Sites & Studio
Bask Health
Remote, United States
This is a hands-on technical product management role focused on making website-building tools intuitive, flexible, and reliable. You'll work closely with engineering, design, and…
Added 32 mins ago
Product Manager, Merchant Platform & Commerce
Bask Health
Remote, United States
This is a hands-on technical product management role focused on making complex business workflows intuitive, reliable, and scalable. You'll work closely with engineering, design, and…
Added 32 mins ago
Product Manager, Data & Intelligence / BaskQL
Bask Health
Remote, United States
This is a hands-on technical product management role focused on making complex data easier to explore, interpret, and act on. You'll work closely with engineering, design, and…
Added 32 mins ago
Junior Product Manager, Patient Experience
Bask Health
Remote, United States
Previous internship or early-career experience in product management, software engineering, or a related technical role.
Added 32 mins ago
Associate Product Manager, New Grad
Bask Health
Remote, United States
We're looking for an Associate Product Manager, New Grad to help build and improve the software that powers Bask Health's telehealth platform.
Added 32 mins ago
Associate Product Manager
Bask Health
Remote, United States
Previous experience in an associate product manager, product management intern, software engineering, or related technical role.
Added 32 mins ago
Apprentice Product Manager
Bask Health
Remote, United States
…curious, takes initiative, and wants to develop into a strong technical product manager. You'll gain exposure to product discovery, technical planning, development, testing, and launches…
Added 35 mins ago
Manufacturing Systems Engineering (MSE) Manager – Level 3
Northrop Grumman
Dulles · Gilbert
Northrop Grumman’s Space Sector is seeking a Manufacturing Systems Engineering (MSE) Manager – Level 3 to join our team. The primary location(s) of the work will be in Dulles, VA and…
Added 35 mins ago
Field Engineer OR Principal Field Engineer (F-35 Product Support Engineer)
Northrop Grumman
Fort Worth
Must have an active Department of Defense (DOD) Secret or higher-level security clearance

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

Applications open in a new tab.

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