Prinicpal Engineer, Structural Integrity

Antares
Los Angeles
Workplace: OnsiteFull timeUSD 190,000 - 250,000 annuallyFunction: Finance & AccountingSkills: ["Mentoring","Technical leadership","Engineering judgment","Cross-functional collaboration","Method development"]

Build and own Antares structural integrity methods and tools for high-temperature reactor components, connecting material behavior, testing, modeling, and design requirements to demonstrated component fitness. Serve as technical authority for structural integrity and materials modeling, applying ASME Section III (Division 5) equivalency and R5/R6 life-assessment methods. Translate test data into models and allowables, develop high-temperature damage methods, and guide engineers across materials and structural analysis.

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FursaFursa
Antares
Antares
3 days ago

Prinicpal Engineer, Structural Integrity

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Last checked: 1 hour agoStatus: Live

Job Summary

Build and own Antares structural integrity methods and tools for high-temperature reactor components, connecting material behavior, testing, modeling, and design requirements to demonstrated component fitness. Serve as technical authority for structural integrity and materials modeling, applying ASME Section III (Division 5) equivalency and R5/R6 life-assessment methods. Translate test data into models and allowables, develop high-temperature damage methods, and guide engineers across materials and structural analysis.
Location: Los Angeles
Workplace: Onsite
Employment Type: Full time
Job Function: Finance & Accounting
Seniority: Mid level

Key Responsibilities

  • •Build and own the Antares structural integrity framework covering design, qualification, operation, inspection, aging, and fitness for service.
  • •Serve as the technical authority for structural integrity and materials modeling across Antares.
  • •Lead application of equivalency applicable ASME Section III, Division 5 for high-temperature components.
  • •Bring R5 and R6 methods into the Antares framework for high-temperature life assessment, fracture, defect tolerance, and remaining life.
  • •Translate material test data into qualified material models, design properties, allowables, and acceptance criteria used in structural analysis.

Pay and Benefits

Salary: USD 190,000 - 250,000 annually
Equity and Bonus:Equity

Key Requirements

  • •Principal or Distinguished-level engineer with deep expertise in structural integrity, materials modeling, or high-temperature component design.
  • •Demonstrated ability to establish technical methods and frameworks used across an organization.
  • •Strong understanding of metallic behavior under temperature, time, irradiation, and cyclic loading.
  • •Deep experience with creep, fatigue, creep-fatigue, fracture, crack growth, and nonlinear structural analysis.
  • •Significant experience with ASME Section III, preferably Division 5, including exposure to Sec 11 rules/practices.
Skills:MentoringTechnical leadershipEngineering judgmentCross-functional collaborationMethod development
Tech Stack:ASME Section IIIDivision 5Sec 11R5R6Finite-elementConstitutive modeling

Eligibility

Nationality:US National

Company Brief

Antares
Designs and builds compact nuclear microreactors for remote, defense, industrial and space applications, focusing on transportable, low-footprint reactors and associated fuel and manufacturing capabilities.
Industry: Nuclear Energy
Company Size: Small (11 to 50 employees)
Growth: Growth Stage Startup
Funding: Series B
Headquarters: Los Angeles, United States
Founded: 2023
Glassdoor
Glassdoor: 3.5
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