Thermal/Hydraulics Engineer

Ocean Atomics LLC

$90K — $120K *
Energy & Utilities
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in nuclear or mechanical engineering required (advanced degree preferred)
  • Experience in reactor thermal/hydraulic design and analysis
  • Proficiency with thermal/hydraulic and/or CFD codes (e.g., COBRA, VIPRE, STAR-CCM+, or equivalent)
  • Strong grounding in fluid mechanics, heat transfer, and two-phase flow
  • Experience integrating experimental or test data into analytical models

Responsibilities

  • Design and analyze coolant flow through the core and primary systems, focusing on pressure drop and heat transfer
  • Develop and refine thermal-hydraulic analysis methods, including system and CFD analyses
  • Establish thermal margins and operating limits to inform design and safety analyses
  • Collaborate with the testing team to prioritize campaigns and define instrumentation
  • Incorporate test data into models to validate and improve design accuracy

Benefits

  • Opportunity to work on cutting-edge nuclear technology
  • Collaboration with interdisciplinary teams
  • Involvement in foundational reactor systems design
  • Access to advanced thermal-hydraulic analysis tools
  • Support for professional development and continued education
Full Job Description
Role Summary

The Thermal-Hydraulics engineer performs design and analysis of coolant flowing through the core, primary systems, and safety systems under normal and transient conditions. This role is foundational to the reactor systems design, and the effects of ship motions and ship-driven space constraints demand uncommon levels of innovation and skill.

What You'll Do
  • Design and analyze coolant flow through the core and primary systems, evaluating pressure drop, flow distribution, mixing, and heat transfer to optimize performance.
  • Develop and refine thermal-hydraulic analysis methods, models, and correlations (e.g., subchannel, system, and CFD analyses) to support core and primary system design.
  • Establish thermal margins and operating limits (e.g., DNBR, flow-induced effects) and feed results into design and safety analyses.
  • Partner with the testing team to prioritize test campaigns, define instrumentation and conditions, and target the data most valuable to the design.
  • Incorporate test data into analytical models via validating, calibrating, and benchmarking to reduce uncertainty and improve design fidelity.
What You Bring
  • Bachelor's degree in nuclear or mechanical engineering required (advanced degree preferred).
  • Experience in reactor thermal/hydraulic design and analysis.
  • Proficiency with thermal/hydraulic and/or CFD codes (e.g., COBRA, VIPRE, STAR-CCM+, or equivalent).
  • Strong grounding in fluid mechanics, heat transfer, and two-phase flow.
  • Experience integrating experimental or test data into analytical models.


Don't meet every bullet? We'd still like to hear from you. If you're excited by the mission and most of this resonates, apply.

Export control notice

This role involves access to information subject to U.S. export control laws, including unclassified nuclear technology governed by the U.S. Department of Energy under 10 CFR Part 810. Depending on a candidate's status, access may require DOE authorization, which Ocean Atomics may apply for. Any offer is contingent on your ability to work in compliance with these requirements. We evaluate all applicants regardless of citizenship or national origin, except where required by law.

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