Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Nuclear Engineer

$115k - $130k
Full-time

Forge Atomics Inc.

Forge Atomics Humanity faces two critical challenges: securing reliable energy and aggressively lowering our environmental impact. At Forge, we believe nuclear fission is the key to solving both at once. Today Forge is developing the technology to rapidly scale the deployment of nuclear fission. Nuclear Engineer The Nuclear Engineer role is responsible for end-to-end ownership of the nuclear design and safety analysis of our first reactor – Ember – spanning core design and fuel cycle, reactivity control, and radiation release and dose analysis. Nuclear Engineers will advance the design from today's working simulation models through design finalization, licensing, and first criticality, and will build the analysis tools and methods needed to do it at unprecedented speed. Successful candidates will have previously demonstrated extreme ownership in modeling, analyzing, or de-risking complex physical systems, and will be highly motivated to power humanity with abundant, clean energy. Responsibilities Support key aspects of nuclear core design including fuel assembly design, reactivity control through burnable poisons, chemical, and mechanical shim, thermal hydraulics, and fuel cycle design Own reactivity control design and analysis: control rod worth, shutdown margin, reactivity coefficients, chemical and mechanical shim, and transient response Perform radiation shielding and release analysis against regulatory limits Work closely with fluids, structures, components and manufacturing teams to deliver a highly system-optimized and manufacturable design Maintain tight partnerships with fuel procurement supply chain including enrichment service providers and fuel assembly fabricators to ensure high manufacturability of our design Own a significant portion of the nuclear system through initial criticality, extended full power operations, and fleet wide commercial deployment Basic Qualifications Bachelor's degree in nuclear engineering, physics, or a related technical discipline 1+ years of engineering experience designing, analyzing, and building complex hardware (internships and school project team experience qualify) Preferred Skills and Experience Strong interpersonal and collaborative skills, enthusiasm for problem solving, and desire to enable abundant clean energy Experience leading or working on an engineering competition team, i.e. Formula SAE, Baja SAE, Solar Car, Rocketry, Cubesat, or similar Ability to perform trade studies and make clear recommendations using first principles and engineering fundamentals even with partial information Experience working at a nimble engineering organization or in a highly technical position that required a scrappy, entrepreneurial manner to accomplish tasks with tight time or budget constraints Experience with nuclear system design and analysis, including core geometry, reactivity simulations, depletion analysis, and radiation shielding Experience with thermal hydraulics, heat transfer, and fluid flow regimes Experience designing to key regulatory standards such as 10 CFR Part 50/52/53 Experience with radiation release analysis, including source term determination and dispersion analysis Additional Requirements Position will be based in the South Bay area of Los Angeles County and will require relocation if not already local. The position will be full-time in the office. Ability to work extended hours and weekends as necessary Ability to travel to reactor construction sites in other states as necessary Compensation and Benefits Pay range: Level I: $115,000.00 - $130,000.00/per year Level II: $125,000.00 - $150,000.00/per year Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience. Base salary is just one part of your total rewards package at Forge. You may also be eligible for long-term incentives, in the form of company stock or stock options, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, paid vacation, paid parental leave, and various other perks. Employees accrue paid sick leave pursuant to Company policy which satisfies or exceeds the accrual, carryover, and use requirements of the law. Forge is an Equal Opportunity Employer; employment with Forge is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status. 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.

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Nuclear Engineer in El Segundo, CA vacancy
  • $133.5k - $207.9k

    Radiant is seeking a driven Senior Nuclear Engineer to join our team! You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge custom... 
    Suggested
    Weekend work

    Radiant

    El Segundo, CA
    1 day ago
  •  ...based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-...  ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use... 
    Suggested
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant

    El Segundo, CA
    2 days ago
  • $106.5k - $146.48k

     ...based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-...  ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use... 
    Suggested
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant Industries

    El Segundo, CA
    19 days ago
  •  ...it's needed, without crewed vessels, without mobilization delays, and at a fraction of the cost. The Role We are hiring a Robotics Engineer to work hands-on across software, hardware, and system integration for our marine robotics platform. This is a generalist robotics... 
    Suggested

    Standard Subsea

    El Segundo, CA
    4 days ago
  • $90k - $140k

     ...real-time software verification. Responsibilities Work as part of an integrated product team under the direction of a lead Controls Engineer and Program Manager May support multiple programs/products simultaneously Provide effective and efficient design support as the... 
    Suggested
    Casual work
    Immediate start
    Remote work

    ThinKom Solutions Inc

    Hawthorne, CA
    5 days ago
  • $130k - $190k

     ...offices in Washington, D.C., San Francisco, San Diego, Seattle, and London. Role Overview CHAOS is seeking a skilled Control Systems Engineer to join our hardware engineering team. In this role, you will design, build, and maintain HIL simulation environments that enable... 
    Work experience placement
    Casual work
    Relocation package

    Chaos Industries

    El Segundo, CA
    5 days ago
  • $106.5k - $146.48k

     ...based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-...  ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use... 
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant Industries

    El Segundo, CA
    19 days ago
  •  ...Job Description Job Description Description As a Senior Manufacturing Engineer (Solar Modules) at Impulse , you will work with cross-functional teams to build solar modules for space applications. You will own the build and testing of solar modules in production... 
    Permanent employment
    Full time

    Impulse Space

    Redondo Beach, CA
    12 days ago
  •  ...Robotics Software Engineer We are looking for a Robotics Software Engineer to advance the autonomy and intelligence of our USV systems. This role focuses on developing and optimizing path planning algorithms, managing edge compute environments, and ensuring software... 

    Splash Industries

    El Segundo, CA
    5 days ago
  • $95.5k - $181.7k

     ...Senior Thermal Engineer – Onsite Date Posted: 2026-05-04 Location: 2000 E El Segundo Blvd, BLDG E01, El Segundo, CA, United States of America (Onsite) Security Clearance: U.S. citizenship required; ability to obtain and maintain a U.S. government issued security clearance... 
    Temporary work
    Work at office
    Relocation package
    Flexible hours

    Raytheon

    El Segundo, CA
    5 days ago
  • $158k - $247.28k

     ...based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-...  ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use... 
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant

    El Segundo, CA
    3 days ago
  • $85k - $110k

     ...financing strategies, Rangeview rewrites both the cost curve and the power structure of making metal parts. Job Summary As a Production Engineer, you will take ownership of Rangeview's production processes and turn legacy manufacturing practices on their head in order to... 
    Permanent employment
    Currently hiring
    Weekend work

    Rangeview

    El Segundo, CA
    3 days ago
  • $75k - $125k

     ...to changing the foundational assumptions for everything we do in space. What You’ll Do: Space Kinetic is looking for a Thermal Engineer to assist with thermal analysis, hardware design, hardware acquisition, and test within the simulation group of the Mechanical Engineering... 
    Permanent employment
    For subcontractor
    Flexible hours

    Space Kinetic

    El Segundo, CA
    1 day ago
  • $107.5k - $150k

     ...CA Employment Type Full time Location Type On-site Department Engineering Mechanical Engineering Compensation $107.5K – $150K. Offers equity...  ...startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-... 
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Cantos Ventures

    El Segundo, CA
    2 days ago
  •  ...Job Type: Full‑time Title: Sr. Manufacturing Engineer Reports To: Plant Manager Location: Culver City, CA Company Overview The Electronic Component Segment of ARXIS brings together the industry’s most distinguished electronics and manufacturing experts, in an elite portfolio... 
    Full time
    Work at office

    Quantic Electronics

    Culver City, CA
    4 days ago
  •  ...We are seeking a Senior Power Electronics Engineer II (2025140)to join our growing spacecraft payload development team In this position, you will contribute across the entire development lifecycle of next-generation power electronics hardware for satellites and space... 
    Shift work

    CesiumAstro

    El Segundo, CA
    5 days ago
  • $108k - $154k

     ...Production / Advanced Manufacturing Engineer El Segundo, California, United States Compensation: $108,000 – $154,000 annually + equity Location: El Segundo, CA Work Policy: Onsite Level: L2 experienced through L3IC senior Hiring Count: 1 Core KPIs: Production ramp, equipment... 
    Permanent employment
    Full time
    Weekend work

    Rangeview, Inc.

    El Segundo, CA
    4 days ago
  •  ...Senior Thermal Modeling Engineer Radiant is seeking a driven Senior Thermal Modeling Engineer with expertise in CFD and thermal FEA modeling...  ...forward to unlock commercialization of the first mass‑produced nuclear reactor. Responsibilities and Duties Own and execute thermal... 
    Full time
    Remote work
    Flexible hours
    Weekend work

    Radiant Industries

    El Segundo, CA
    4 days ago
  •  ...characterization. Create and maintain a material database. Work closely with Structures, Electrical, GNC, Propulsion and System Engineering functional teams. Map temperatures on structural finite element models. Interface with Manufacturing and Production to monitor component... 
    Permanent employment
    For subcontractor
    Flexible hours

    Space Kinetic

    El Segundo, CA
    10 hours ago
  •  ...Sr. Principal Manufacturing Engineer Location: Redondo Beach, CA (Onsite) Work Shift: First Shift US Citizenship Required seeking a Sr. Principal Manufacturing Engineer to join our pioneering team at our Redondo Beach, CA location. In this highly... 
    Shift work
    Day shift

    Trispoke Managed Services Pvt Ltd

    Redondo Beach, CA
    5 days ago
  • $110k - $140k

     ...Title: Manufacturing Engineer Location: Inglewood, CA 90302 Duration: Permanent / FTE Salary: $110K - $140K **This position must meet export control compliance requirements. All applicants must be "U.S. persons" within the meaning of ITAR , as defined: a U.... 
    Permanent employment
    Temporary work
    For contractors
    Local area
    Flexible hours

    Everest Consultants

    Inglewood, CA
    3 days ago
  • $100k - $160k

     ...Manufacturing Engineer Icarus was founded on the belief that the Stratosphere is the Forgotten Frontier and that reclaiming it will define the next era of aerospace and what is possible from the sky. We build solar-powered aircraft that fly at 60,000 ft for weeks at... 
    Work experience placement
    Day shift

    Icarus Inc

    El Segundo, CA
    5 days ago
  • $83.4k - $125.2k

     ...employees are not only part of history, they’re making history. Northrop Grumman Aeronautics Systems has an opening for an Industrial Engineer (Level 2) or a Principal Industrial Engineer (Level 3) to join our team of qualified, diverse individuals in El Segundo, CA . The... 
    Relocation package
    Shift work

    Northrop Grumman

    El Segundo, CA
    5 days ago
  • $100k - $140k

     ...possible in energy. Our mission is to make clean, high‑temperature nuclear power scalable—unlocking abundant energy for industry, hydrogen...  ...and next‑generation manufacturing. We are a team of builders, engineers, and operators who believe nuclear energy should be fast to... 
    Permanent employment
    Shift work

    Valar Atomics

    Hawthorne, CA
    4 days ago
  •  ...Senior Manufacturing Engineer We are seeking a highly skilled Senior Manufacturing Engineer to join our team in the Electronics (RF) Manufacturing industry. As a Senior Manufacturing Engineer, you will be responsible for overseeing the production process and ensuring... 

    Empower RF Systems

    Inglewood, CA
    5 days ago
  •  ...based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-...  ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use... 
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant

    El Segundo, CA
    5 days ago
  •  ...Thermal Engineer As a Thermal Engineer at Impulse, you will be responsible for thermal management of spacecraft from concept, analysis, and design, to implementation, testing, and flight while working closely with a fast-paced, agile team that strives to make a high... 
    Permanent employment
    Full time

    Impulse Space

    Redondo Beach, CA
    4 days ago
  •  ...Thermal Engineer (All Levels) Venturi Astrolab, Inc. (Astrolab) is pioneering new ways to explore and operate on distant planetary bodies. We are singularly focused on designing, building, and operating a fleet of multi-purpose commercial planetary rovers to extend... 
    Home office
    Flexible hours

    Astrolab

    Hawthorne, CA
    4 days ago
  •  ...Manufacturing Engineer III The Marvin Group is a Strategic Partner for Global Alternate Mission Equipment and Sustainment. The Marvin Group, a leading defense contractor, plays a crucial role in the development and manufacturing of various systems for military aerospace... 
    Permanent employment
    For contractors

    The Marvin Group

    Inglewood, CA
    5 days ago
  • $115k - $170k

     ...Senior Manufacturing Engineer Amca is building America's new industrial base. Since the 1990s, our ability to build new aviation and military systems and maintain the ones we already have has eroded. Today, the gap between what the nation needs to produce and what... 
    Permanent employment
    Full time

    Amca Llc

    El Segundo, CA
    5 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Nuclear Engineer. Be the first to apply!