Senior Multiphysics Engineer, High Speed Reacting Flow

Anduril
United States
Workplace: OnsiteFull timeUSD 146,000 - 194,000 annuallyFunction: Administration & Executive AssistanceExperience: 5+ yearsEducation: mastersSkills: ["Technical writing","Presenting results","Analysis","Model validation"]

Own internal flow, combustion, and heat-transfer analysis for air vehicle propulsion systems. Run CFD for internal/high-speed reacting flows, starting from hand/1D models and refining with 3D CFD to predict heat loads, pressures, and surface temperatures. Validate against static fire and ground tests, support nozzle/insulation/case decisions, and build repeatable analysis workflows. Collaborate across aerodynamics, thermal, structures, materials, and test teams.

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Anduril
Anduril
2 days ago

Senior Multiphysics Engineer, High Speed Reacting Flow

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Last checked: 3 hours agoStatus: Live

Job Summary

Own internal flow, combustion, and heat-transfer analysis for air vehicle propulsion systems. Run CFD for internal/high-speed reacting flows, starting from hand/1D models and refining with 3D CFD to predict heat loads, pressures, and surface temperatures. Validate against static fire and ground tests, support nozzle/insulation/case decisions, and build repeatable analysis workflows. Collaborate across aerodynamics, thermal, structures, materials, and test teams.
Location: United States
Workplace: Onsite
Employment Type: Full time
Job Function: Administration & Executive Assistance
Seniority: Mid level

Key Responsibilities

  • •Run CFD analysis of internal and high-speed flows with and without combustion.
  • •Start with hand calculations and 1D models for sizing, then use 3D CFD to refine designs.
  • •Predict heat loads, surface temperatures, and pressures to inform thermal and structural teams.
  • •Compare predictions against static fire and ground test data and improve the models.
  • •Support design decisions for rocket nozzle, insulation, and case design; collaborate with cross-functional engineering teams.

Pay and Benefits

Salary: USD 146,000 - 194,000 annually
Perks:Health InsuranceDentalVision

Key Requirements

  • •Master’s degree in Aerospace, Mechanical, Chemical Engineering, Engineering Physics, or a related field.
  • •5+ years of experience in CFD, aerothermal, thermal, or combustion analysis.
  • •Foundational understanding of compressible flow including shocks, choked flow, and supersonic nozzles.
  • •Strong first-principles understanding of heat transfer and fluid dynamics, including conduction, convection, radiation, and transient thermal behavior.
  • •Experience using commercial CFD code such as STAR-CCM+ or Fluent, including meshing and driving cases to convergence.
Experience:5+ years
Education:Master's in Aerospace engineering, Mechanical Engineering, Chemical Engineering, Engineering Physics
Skills:Technical writingPresenting resultsAnalysisModel validation
Languages:English
Tech Stack:CFDSTAR-CCM+FluentMeshingPythonMATLABNASA CEACanteraCHEMKINSTAR-CCM+ Java macrosFluent journalingUDFs

Eligibility

Security Clearance:U.S. secret

Company Brief

Anduril
Designs and builds advanced defense systems combining autonomous aircraft, sensors, and AI-driven software for military and national security applications, focused on modernizing battlefield capabilities and distributed sensing.
Industry: Defense Technology
Company Size: Enterprise (1,001+ employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series E+
Headquarters: Costa Mesa, United States
Founded: 2017
WebsiteLinkedIn