EngineeringOn-site

Software Engineer (Thermal & Fluid Analysis)

SpaceX · On-site

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Last seen by MeritLog September 8, 2026Source: GreenhouseSource version: greenhouse-job-board-v1

MeritLog read this listing from SpaceX's Greenhouse job board and last checked it on September 8, 2026.

Source: the employer's Greenhouse job board. Open the original listing for current details.

Job details

Work model: On-site
Salary: Not listed by source
Location: Starbase, TX
Occupation: Software Developers(O*NET 15-1252.00)

Hiring context

How this role compares at SpaceX

SpaceX has 2,341 live roles in MeritLog’s catalog across 11 job families, and 1,417 of them are in engineering. 197 of those listings publish a pay range, a disclosure rate of 8%.

SpaceX concentrates this hiring in:

Counted across the job boards MeritLog tracks, at the time this page was served. Pay comparisons use only listings that publish a complete range in the same currency and period.

What the role asks for

What you'd do

Design software and workflows that improve mission critical analysis throughput
Build infrastructure to support thermal and fluid systems analysis
Automate analysis workflows to speed up mission and design iteration
Support simulation and validation with test and flight data
Collaborate with engineers to improve reliability and performance of spacecraft systems
Write clean, scalable code and maintain strong documentation

What they're asking for

Bachelor’s degree in computer science, engineering, physics, mathematics, or a related fieldEducation
1+ years of experience coding in Python, JavaScript, and/or Rust (including internship or academic experience)Experience
Familiarity with thermal or fluid systems in spacecraft or aerospace applicationsSkillPreferred
Strong background in Python and data processingSkillPreferred
Experience automating engineering workflows or simulationsSkillPreferred
Knowledge of and/or experience in MATLAB, C/C++, Git, Thermal Desktop, ANSYS Workbench, Siemens STAR-CCM+SkillPreferred
Understanding of thermal/fluid networks (0-D or 1-D modeling)SkillPreferred
Excellent communication and documentation skillsSkillPreferred
Interest in making engineering tools easier to use and more scalableSkillPreferred
Familiarity with high performance computingSkillPreferred
Must be willing to work extended hours and/or weekends as neededSkillPreferred
To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.SkillPreferred

Parsed by MeritLog from the employer’s own posting. The full description follows below.

Job description

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SOFTWARE ENGINEER (THERMAL & FLUID ANALYSIS) The Thermal & Fluid Analysis team supports the design and testing of Starship’s thermal and fluids systems. These include active and passive thermal control, propellant feed systems, gas systems, thermal protection, and in-space propellant management among many other subsystems. These systems must perform reliably in extreme environments from launch to recovery. In this role, you will develop software tools to support analysis, improve design processes, automate workflows, and subsequently deploy the new software/workflows to the analysis and engineering community. Your work will enable making informed decisions more quickly and thus reducing the time required to realize a self-sustaining colony on Mars. This role requires strong software development skills and an interest in simulation, thermal design, and fluid systems. Experience with thermal & fluid system modeling technique and simulation is a major plus. RESPONSIBILITIES: • Design software and workflows that improve mission critical analysis throughput • Build infrastructure to support thermal and fluid systems analysis • Automate analysis workflows to speed up mission and design iteration • Support simulation and validation with test and flight data • Collaborate with engineers to improve reliability and performance of spacecraft systems • Write clean, scalable code and maintain strong documentation BASIC QUALIFICATIONS: • Bachelor’s degree in computer science, engineering, physics, mathematics, or a related field • 1+ years of experience coding in Python, JavaScript, and/or Rust (including internship or academic experience) PREFERRED SKILLS AND EXPERIENCE: • Familiarity with thermal or fluid systems in spacecraft or aerospace applications • Strong background in Python and data processing • Experience automating engineering workflows or simulations • Knowledge of and/or experience in MATLAB, C/C++, Git, Thermal Desktop, ANSYS Workbench, Siemens STAR-CCM+ • Understanding of thermal/fluid networks (0-D or 1-D modeling) • Excellent communication and documentation skills • Interest in making engineering tools easier to use and more scalable • Familiarity with high performance computing ADDITIONAL REQUIREMENTS: • Must be willing to work extended hours and/or weekends as needed ITAR REQUIREMENTS: • To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. SpaceX is an Equal Opportunity Employer; employment with SpaceX is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status. Applicants wishing to view a copy of SpaceX’s Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should reach out to EEOCompliance@spacex.com.

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