Full-Time

Senior Thermal Analyst

Posted on 9/5/2025

Astra

Astra

201-500 employees

Small-satellite launch services provider

Compensation Overview

$130k - $165k/yr

Alameda, CA, USA

In Person

Category
Aerospace Engineering (1)
Required Skills
Python
MATLAB
VBA
FEM/FEA
Excel/Numbers/Sheets
Requirements
  • 3+ years' professional experience with thermal analysis in space applications
  • Demonstrated experience with thermal analysis software (Siemens, Thermal Desktop, SINDA/FLUINT)
  • 2+ years of experience with thermal cycling / TVAC test planning, test set-up, results correlation, and system verification
  • 2+ years of experience in development and/or selection of thermal control hardware, such as: surface finishes, interface materials, MLI blankets, heat pipes, radiators, temperature sensors, and heaters
  • You are comfortable with data processing tools ranging from Excel to custom scripts built with VBA, Python, MATLAB, etc.
  • You have a strong understanding of commonly used materials & their thermal/mechanical behavior
  • You have demonstrated ability of working with design engineers symbiotically to create efficient designs that satisfy broad requirements
  • You have shown familiarity with anchoring models to test data
  • You own analysis projects from beginning to end, with minimal oversight
  • You are self-motivated with strong organizational, communication and documentation skills
  • Bachelor’s degree in in Mechanical Engineering, Aerospace Engineering, or related technical discipline
Responsibilities
  • Responsible for thermal design, analysis and test of spacecraft and space components mounted internal and external to the spacecraft bus
  • Support architectural trades & parametric analyses using first order principles and preliminary thermal analysis on spacecraft and subsystems for orbital conditions and vehicle operating modes
  • Develop automated scripts enabling rapid analysis updates accommodating trades (operational modes, duty cycles, structural distortion mapping)
  • Design, analyze and select thermal hardware such as: heat pipes, multi-layer insulation, surface finishes and interface materials as needed for bus and payload components
  • Identify and procure materials, processes, and facilities necessary to deliver a qualified spacecraft thermal system and components
  • Define and execute test setups for thermal cycling and TVAC tests for development and qualification testing at subsystem and vehicle level, and correlate test results with mission operations models
  • Develop standards to be used on thermal analyses; define tools & acceptable post-processing methods
  • Correlate system models to test data and provide the test & operations team with test sequences and other guidance about safe product operations
  • Improve the existing analytical capabilities, processes, and tools
  • Help design tests, guide instrumentation selection & location to validate and refine models
  • Develop, document, & present the load cases and results in a clear, concise manner so that they can correlate to past analyses as well as inform future analyses
  • Own and report on subsystem schedule, cost, and deliverables
Desired Qualifications
  • Advanced degree (Master’s or PhD) in Mechanical Engineering, Aerospace Engineering, or related technical discipline
  • 5+ years of industry experience with space thermal engineering
  • Experience developing hardware and spacecraft that have been to space, and which successfully operated as intended
  • Experience with interpreting and correlating data from on–orbit telemetry
  • Experience with mechanical CAD (NX or similar) and PLM (Teamcenter or similar)

Astra Space focuses on launching small satellites. It provides cost-effective and efficient launch services using small, agile rockets designed to deliver small payloads into low Earth orbit. Customers include commercial companies, government agencies, and research institutions that need reliable access to space for satellite missions. The rockets work by carrying a small satellite into orbit and deploying it once in space; companies pay Astra to transport their satellites to their orbital destination. Astra differentiates itself from competitors by targeting the small-satellite market with affordable, streamlined launches and a leaner, faster path to orbit, aiming to simplify and reduce the cost and complexity of getting to space. The company’s goal is to make space access easier and more affordable for a broad range of customers, expanding access to space and enabling satellite-based services.

Company Size

201-500

Company Stage

IPO

Headquarters

Alameda, California

Founded

2016

Simplify Jobs

Simplify's Take

What believers are saying

  • Forecasts $45M revenue in 2025, 700% growth over 2024, breakeven EBITDA.
  • Secured $44M DoD contract for Rocket 4 cargo missions.
  • $13M Q4 2025 contracts for 36 systems delivering in 2026.

What critics are saying

  • Rocket 4 delays past 2026 test due to 75% first-stage completion.
  • Rocket Lab's Neutron diverts smallsat contracts from Astra's 600kg capacity.
  • $50M capital raise fails, halting production after privatization buyout.

What makes Astra unique

  • Astra ships 110 satellite engines since January 2025 with 100% reliability.
  • Rocket 4 enables tactically responsive launches from U.S. or Australia.
  • Dr. Alan Weston leads mobile launch system development since March 2025.

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Benefits

Competitive Medical (HMO & PPO)/Dental/Vision plans

Company paid Short Term Disability and Long Term Disability plans

401K with company match

Flexible Spending Account

Commuter benefits

Caregiving support benefits

Company perks, like PetPlan, curated gym/travel/products discounts

Free lunch

Company events

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

-1%
The Associated Press
Jan 20th, 2026
Astra ships 110 satellite engines, achieves breakeven EBITDA on $45M revenue

Astra has shipped 110 satellite engine systems since January 2025, surpassing a key milestone set when the company went private in 2024. The Alameda-based space technology firm achieved this with approximately 100 employees whilst developing its new rocket and mobile launch system for a 2026 test flight. The company forecasts $45 million in 2025 revenue, representing 700% growth over 2024, and expects to reach breakeven EBITDA. Astra closed $13 million in contracts during Q4 2025 for 36 additional systems scheduled for 2026 delivery. All deployed satellite engines are performing nominally with 100% mission reliability. The company has progressed its new rocket development to approximately 75% first-stage and 90% upper-stage design completion. Astra has engaged Nasdaq Private Markets and Siebert as advisors for a private capital raise.

Bizmart Space
Apr 23rd, 2025
Astra's Rocket 4 Targets Pentagon-Backed Cargo Missions

Aiming to redefine global military logistics, Astra Space is developing its Rocket 4 launch system as a fast-response vehicle for suborbital and orbital cargo delivery missions, backed by a $44 million contract from the U.S. Department of Defense.

Astra Space, Inc.
Mar 21st, 2025
Astra Appoints Missile Defense Pioneer Dr. Alan Weston to Lead Rocket Program

Alameda, CA - March 21, 2025 - Astra announced today that Dr. Alan Weston has joined the company as Head of Launch Program, bringing decades of leadership in space launch, missile systems, and national defense to deliver the world's most mobile and manufacturable launch system.

9to5Google
Mar 6th, 2025
Google 'Astra' ready to launch as it joins the main Gemini team alongside new VP

Making this change helps accelerate product development, with Astra officially announced last May at I/O 2024.

Payload
Oct 29th, 2024
Inside Astra's Rocket Reinvention

Astra is raising a $50M capital round to support the development of its launch vehicle, dubbed Rocket Four, CEO Chris Kemp told Payload.

INACTIVE