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Thermal Engineer Remote Jobs in California (NOW HIRING)

Oklo

Reactor Core Thermal Fluids Engineer

Santa Clara, CA · On-site +1

$80K - $175K/yr

We are searching for a Thermal Fluids Engineer to join our Core Thermal-Hydraulics team. Position ... Oklo requires remote employees to travel to headquarters (Santa Clara, CA) twice a quarter annually ...

Rula

Sr. Analytics Engineer (Remote)

Los Angeles, CA · Remote

$112K - $154K/yr

... remote-first company. We currently hire in most U.S. states, with the exception of Hawaii. About the Role We are hiring a Senior Analytics Engineer to join our unified, high-velocity Analytics ...

Innowhyte Inc

We are hiring an AI Engineer specializing in LLMs (Large Language Models), Retrieval Augmented Generation ( RAG ), and Generative AI. The role involves building advanced AI solutions that leverage ...

Muon Space

Staff Optical Engineer

Mountain View, CA · On-site +1

$166K - $223K/yr

... CA or Remote, developing infrared remote sensing instruments. The ideal candidate is a self ... thermal constraints and line-of-sight pointing/jitter, ensuring adequate margins throughout ...

Muon Space

Staff Optical Engineer

Mountain View, CA · On-site +1

$166K - $223K/yr

D. and 5+ years of experience developing imaging systems and infrared remote sensing instruments ... thermal teams. * Ability to obtain security clearance strongly preferred. Nice-to-have Skills

Kairos Power

Senior Nuclear Facility Engineer

Alameda, CA · On-site +1

$118K - $162K/yr

... remote handling, reactor coolant auxiliary systems, reactor systems, safety analysis ... Coordinate with mechanical, civil, and I&C design teams to define spatial, thermal, and functional ...

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Thermal Engineer Remote information

How does a remote Thermal Engineer typically collaborate with cross-functional teams on complex projects?

As a remote Thermal Engineer, you'll frequently work with multidisciplinary teams such as mechanical, electrical, and systems engineers, often using virtual collaboration tools. Regular video meetings and shared project management platforms help maintain clear communication and align on project goals. You'll likely share simulation results, provide design feedback, and troubleshoot thermal issues in real time, ensuring seamless integration of thermal solutions. Building strong relationships and effective communication skills are important to overcome the challenges of distance and coordinate efficiently across different time zones.

What are the key skills and qualifications needed to thrive as a Thermal Engineer Remote, and why are they important?

To thrive as a Thermal Engineer working remotely, you need a solid background in mechanical or thermal engineering, proficiency with heat transfer principles, and a relevant degree such as a B.S. or M.S. in engineering. Familiarity with simulation tools like ANSYS, CFD software, and CAD systems, as well as certifications in thermal analysis, are typically required. Strong problem-solving abilities, effective communication, and self-motivation are crucial soft skills for remote collaboration and project management. These skills ensure efficient thermal system design, accurate analysis, and seamless team integration, which are critical for project success in a remote setting.

What is the difference between Thermal Engineer Remote vs Mechanical Engineer Remote?

AspectThermal Engineer RemoteMechanical Engineer Remote
Required CredentialsBachelor's in Mechanical or Thermal Engineering, certifications like FE or PE often preferredBachelor's in Mechanical Engineering, similar certifications often required
Work EnvironmentDesigning thermal systems, simulations, analysis, often using CAD and thermal modeling softwareDesigning mechanical systems, CAD modeling, and analysis, with broader scope
Industry UsageElectronics, HVAC, aerospace, energy sectorsManufacturing, automotive, aerospace, consumer products
Common Search/ComparisonYesYes

Thermal Engineer Remote and Mechanical Engineer Remote roles share similar educational backgrounds and certifications. Thermal Engineers focus on thermal systems and heat transfer analysis, often in electronics and energy sectors, while Mechanical Engineers have a broader scope in designing mechanical systems across various industries. Both roles are commonly searched for remotely and require proficiency in CAD and simulation tools.

What does a Thermal Engineer do, especially in a remote role?

A Thermal Engineer is responsible for analyzing, designing, and optimizing systems to manage heat transfer and temperature control in various products or environments. In a remote role, they use simulation software and collaborate virtually with engineering teams to solve thermal challenges in electronics, aerospace, automotive, or other industries. Their tasks may include thermal modeling, testing, and documentation to ensure systems operate safely and efficiently. Remote Thermal Engineers rely on digital tools and clear communication to coordinate with clients and colleagues, often working on projects from concept through implementation.
What are the most commonly searched types of Thermal Engineer jobs in California? The most popular types of Thermal Engineer jobs in California are:
What are popular job titles related to Thermal Engineer Remote jobs in California? For Thermal Engineer Remote jobs in California, the most frequently searched job titles are:
What job categories do people searching Thermal Engineer Remote jobs in California look for? The top searched job categories for Thermal Engineer Remote jobs in California are:
What cities in California are hiring for Thermal Engineer Remote jobs? Cities in California with the most Thermal Engineer Remote job openings:
Thermal Engineer Remote jobs near you
Infographic showing various Thermal Engineer Remote job openings in California as of July 2026, with employment types broken down into 93% Full Time, 4% Part Time, and 3% Contract. Highlights an 89% Physical, 4% Hybrid, and 7% Remote job distribution.

Reactor Core Thermal Fluids Engineer

Oklo

Santa Clara, CA • On-site, Remote

$80K - $175K/yr

Full-time

Medical, Retirement

Re-posted 25 days ago

Job description

Thanks for your interest in Oklo! We are searching for a Thermal Fluids Engineer to join our Core Thermal-Hydraulics team.
Position Description
The Core Thermal-Hydraulics team at Oklo is responsible for analyzing fluid flow and heat transfer within a reactor core. The work includes engineering analyses of thermal-fluid dynamics, clear and thorough documentation of the analyses, as well as interfacing with design teams. A engineer on the team will contribute to the development, qualification, and validation of methods for modeling coolant flow within reactor cores using one-dimensional models, intermediate-fidelity subchannel models, and high-fidelity computational fluid dynamics models.
Specific responsibilities may include:
  • Modeling core thermal-hydraulic behavior using
    • subchannel codes such as DASSH, MOOSE-Subchannel, or COBRA-TF
    • one-dimensional systems codes such as SAS4A/SASSYS-1 or RELAP
    • first principles approaches and in-house flow network models
    • 3-D computational fluid dynamics
  • Developing and documenting methods to analyze core thermal-hydraulic behavior at steady-state and during transients
  • Automation, verification, and validation of modeling and simulation tools in support of analyses
  • Collaborating cross-functionally to define design requirements, and providing technical feedback to quick-iterating design teams

Minimum Qualifications
  • Bachelors, Masters, or PhD in a technical field, such as nuclear, mechanical, or aerospace engineering
  • Proficiency with thermal fluids (thermal-hydraulics) analysis methods and first principles
  • Able to write clear and concise documentation
  • Experience with
    • low-fidelity and intermediate-fidelity (e.g., porous body and correlation-based) models for heat transfer and fluid flow
    • numerical methods and software development for heat transfer and fluid flow problems
    • data processing (e.g., pre-processing, post-processing, scripting)

Bonus Qualifications
  • Fluency with Python
  • Demonstrated success in qualification and validation of analyses
  • Experience with
    • CI/CD computing environments
    • reactor systems codes (RELAP or similar)
    • subchannel analysis codes (COBRA-TF or similar)
    • high-fidelity computational fluid dynamics analysis

Competencies
We are looking for a Thermal Fluids Engineer that is:
  • Willing and able to learn quickly
  • Deeply skilled in analysis of heat transfer and fluid flow in confined geometries
  • Eager to work on a dynamic team, receive constructive feedback, and grow with us
  • Excited to think creatively, critically, and reflectively about the problems they are solving
  • Familiar with the importance of high-quality documentation

About Oklo travel requirements:
Oklo requires remote employees to travel to headquarters (Santa Clara, CA) twice a quarter annually, based on business or team needs, including attendance at team meetings, off-sites, and other company events or gatherings. Some travel to other sites is also required for this position. For the first two weeks of onboarding, employees are required to be in person at headquarters in Santa Clara, CA.
About Oklo compensation:
Salary: $80,000-$175,000
Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits.
We are looking to fill this position immediately!
About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.
#CHOP: Oklo's ValuesCollaboration: We go further, together. We bring diverse perspectives, listen actively, and build trust through transparency and respect. We work across disciplines, sharing ownership to turn complex challenges into shared successes.
Humility: We are team players who act for the good of the company and for the world. We are focused on our mission, not personal recognition.
Ownership: We take pride in what we do and how we do it. We are proactive in finding solutions and see tasks through to completion. We are committed to delivering on our promises to provide clean, reliable, and affordable energy.
Pathfinding: We chart new ground where no path exists by approaching challenges with curiosity, courage, and creativity while navigating ambiguity.
Candidates should be aware that employment may be contingent upon successful completion of a drug screening, and employees may be subject to drug testing at any time in accordance with company policy and applicable laws.
Recruitment Fraud Disclaimer
Oklo is aware of recent recruitment fraud attempts targeting job seekers. Please be cautious of anyone claiming to represent Oklo who does not contact you from an official Oklo email address.
All legitimate communications from our recruiting team- including application updates, interview requests, and job offers - will come exclusively from an @oklo.com email. Oklo will never ask for sensitive personal information, payments, or account credentials during the hiring process.
If you receive suspicious outreach or have concerns about the authenticity of any communication claiming to be from Oklo, please contact us through the official channels listed on our website.

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