Multiphysics Engineer, High Speed Reacting Flow

Anduril
United States
Workplace: OnsiteFull timeUSD 129,000 - 171,000 annuallyFunction: Administration & Executive AssistanceExperience: 5+ yearsEducation: mastersSkills: ["Technical writing","Presenting results","Building workflows","Model validation","Collaboration"]

Own internal flow, combustion, and heat transfer analysis for air vehicle propulsion systems. Run CFD for internal and high-speed reacting flows, starting with hand calculations and 1D models then refining with 3D CFD to predict heat loads, pressures, and surface temperatures. Validate against static fire and ground test data, improve models, and collaborate across aerodynamics, thermal, structures, materials, and test teams while presenting results and building repeatable analysis workflows.

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Anduril
Anduril
6 hours ago

Multiphysics Engineer, High Speed Reacting Flow

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Last checked: 4 hours agoStatus: Live

Job Summary

Own internal flow, combustion, and heat transfer analysis for air vehicle propulsion systems. Run CFD for internal and high-speed reacting flows, starting with hand calculations and 1D models then refining with 3D CFD to predict heat loads, pressures, and surface temperatures. Validate against static fire and ground test data, improve models, and collaborate across aerodynamics, thermal, structures, materials, and test teams while presenting results and building repeatable analysis workflows.
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.
  • •Use hand calculations and 1D models to size designs, then refine with 3D CFD.
  • •Predict heat loads, surface temperatures, and pressures to support thermal and structural teams.
  • •Set up gas properties and chemistry appropriate to modeled conditions.
  • •Compare predictions against static fire and ground test data and improve models.

Pay and Benefits

Salary: USD 129,000 - 171,000 annually
Equity and Bonus:Equity

Key Requirements

  • •Master’s degree in Aerospace, Mechanical, Chemical Engineering, Engineering Physics, or a related field.
  • •Ability to obtain and maintain a U.S. secret security clearance.
  • •5+ years of experience in CFD, aerothermal, thermal, or combustion analysis.
  • •Foundational understanding of compressible flow (shocks, choked flow, supersonic nozzles) and heat transfer fundamentals (conduction, convection, radiation, transient thermal behavior).
  • •Experience using commercial CFD tools (e.g., STAR-CCM+, Fluent) including meshing and driving cases to convergence, plus programming in Python or MATLAB.
Experience:5+ yearsCFDAerospaceCombustionPropulsionAerothermal
Education:Master's
Skills:Technical writingPresenting resultsBuilding workflowsModel validationCollaboration
Languages:English
Tech Stack:PythonMATLABSTAR-CCM+FluentNASA CEACanteraCHEMKIN

Eligibility

Security Clearance: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