Full-Time

Principal Engineer

Structural Integrity of Metallic Systems, Structures & Components

Posted on 12/19/2024

Kairos Power

Kairos Power

501-1,000 employees

Designs, licenses, and demonstrates advanced reactors

Compensation Overview

$166.7k - $208.4k/yr

Alameda, CA, USA

Remote

Some travel may be required (up to 10%) to other Kairos Power offices and meeting locations.

Category
Software Engineering (1)
Required Skills
Python
MATLAB
C/C++
Requirements
  • MS or PhD degree in Mechanical, Nuclear, or Materials Engineering, Materials Science, Applied Mathematics, or related field strongly preferred
  • 15+ years of experience with FEA required; APDL & Usermat (Ansys) or UMAT (Abaqus) experience strongly preferred
  • Knowledge of inelastic deformation and failure mechanisms of ductile structural components operating at high temperature and under irradiation required and preferred, respectively
  • Knowledge of Fracture Mechanics is required; Experience in application and knowledge of Construction and Fitness-for-Service codes (e.g., ASME III & XI, API 579, UK R5/R6, BS-7910, RCC-MRx) is preferred
  • Working experience with scientific & scripting programming languages (e.g., C++, Fortran, Python and Matlab)
  • Working experience with model calibration and optimization techniques as well uncertainty quantification
Responsibilities
  • Lead the extension and application of structural integrity assessment methods and procedures to future commercial FHR units
  • Conduct and review defect tolerance (DTA) and fitness-for-service (FFS) assessments of KP-FHR SSCs
  • Support the company’s design-for-construction and materials qualification efforts by performing and reviewing Finite Element Analysis (FEA) of metallic SSCs
  • Lead the development, verification and validation of deformation and damage models of high carbon stainless steels
  • Collaborate cross-functionally with various engineering teams on efforts such as uncertainty quantification (UQ), software Quality Assurance (SQA), software and hardware acquisition, and support of management and work program leadership in meeting company’s licensing milestones and deliverables
  • Other duties as assigned
Desired Qualifications
  • Knowledge of inelastic deformation
  • Knowledge of Fracture Mechanics
  • Ability to function in a fast-paced company environment with minimal direction and adjust workload based upon changing priorities
  • Team player with excellent interpersonal, written, presentation, and verbal communication skills
  • Ability to work with highly collaborative team
  • Ability to problem solve quickly and efficiently
  • Ability to proactively collect, manage and transfer knowledge
  • Ability to seek different and novel ways to create efficiencies when working on problems, challenges and issues
  • Prioritizes and ensures safety of oneself and others

Kairos Power designs, licenses, and demonstrates advanced nuclear reactors, headed by the KP-FHR which uses fluoride salt coolant and high operating temperatures to generate electricity. The system focuses on low water use and near-zero carbon emissions, pursuing an integrated path from design to regulatory licensing and demonstration to prove safety and economics. The company distinguishes itself by aiming to beat natural gas on cost and by a clear licensing/demo program coupled with environmental and grid-resilience performance. Its goal is to scale safe, affordable nuclear technology through government support, investments, licensing deals, and long-term service agreements to help decarbonize electricity.

Company Size

501-1,000

Company Stage

Grant

Total Funding

$20K

Headquarters

Alameda, California

Founded

2016

Simplify Jobs

Simplify's Take

What believers are saying

  • Google-TVA deal secures 50 MWe offtake for Hermes 2 by 2030.
  • DOE Nuclear Dominance program accelerates TRISO fuel supply by 2033.
  • BWXT partnership scales commercial TRISO production for deployments.

What critics are saying

  • Hermes 1 completion slips to 2029, delaying Hermes 2 operations.
  • TerraPower's 42-month Wyoming reactor steals Google data center contracts.
  • NRG PALLAS tests expose TRISO cracking, forcing NRC redesigns.

What makes Kairos Power unique

  • KP-FHR uses TRISO pebble fuel and Flibe salt coolant from Oak Ridge origins.
  • First NRC-permitted power-producing Gen IV reactor with Hermes 2.
  • Factory-built modules from Albuquerque campus enable modular SMR assembly.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Paid Vacation

401(k) Company Match

401(k) Retirement Plan

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

2%

2 year growth

1%
NucNet
Sep 3rd, 2025
Kairos And BWXT To Collaborate On Commercial Production Of Triso Nuclear Fuel

Kairos is developing Generation IV fluoride salt-cooled high-temperature reactor (KP-FHR) technology.

Chattanooga Times Free Press
Aug 18th, 2025
TVA, Google team up on advanced nuclear reactor project

Kairos Power will sell electricity to the Tennessee Valley Authority through an agreement announced Monday, and TVA will pass clean energy credits to its customer Google, which operates two data centers in the region.

Teknovation.biz
Jun 3rd, 2025
Ornl And Elementl Power Collaborate On A Data-Driven Approach For New Nuclear

Oak Ridge National Laboratory (ORNL) and Elementl Power have teamed up to advance a data-driven siting approach for advanced nuclear projects. The work started through a U.S. Department of Energy... The post ORNL and Elementl Power collaborate on a data-driven approach for new nuclear appeared first on Teknovation.biz.

Teknovation.biz
May 8th, 2025
Kairos Power Completes First Installation Of Nuclear Safety-Related Concrete For The Hermes Low-Power Demonstration Reactor

Kairos Power announced on Thursday that the company has completed the first installation of nuclear safety-related concrete for the Hermes Low-Power Demonstration Reactor, marking the start of “nuclear construction” on... The post Kairos Power completes first installation of nuclear safety-related concrete for the Hermes Low-Power Demonstration Reactor appeared first on Teknovation.biz.

NEI Magazine
Mar 28th, 2025
NRG PALLAS to test fuel for Kairos SMR

Netherlands research institute NRG PALLAS has signed a contract with US-based Kairos Power to assess materials and fuels that will be used in the small modular reactors (SMRs) Kairos is developing to power Google data centres.

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