Senior Thermal Design and Analysis Engineer

GALAXEYE SPACE SOLUTIONS PRIVATE LIMITED; Bengaluru Urban; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

GALAXEYE SPACE SOLUTIONS PRIVATE LIMITED is seeking a Senior Thermal Design and Analysis Engineer to own the spacecraft bus thermal design and analysis from concept through flight qualification, focusing on the satellite bus thermal system.

The role requires delivering high-fidelity thermal models, defining passive and active thermal control, and coordinating across structures, avionics, EPS, propulsion, payload, and AIT teams.

Qualifications

• Bachelor's or Master's degree in Mechanical, Aerospace, or Thermal Engineering.
• 3–6 years of spacecraft or aerospace thermal design and analysis.
• Hands-on experience with Siemens NX Space Systems Thermal (TMG) within Simcenter 3D.
• Strong understanding of spacecraft heat transfer and orbital environments.
• Experience developing thermal models and performing orbital thermal analysis.
• Ability to validate simulations with first-principles thermal calculations.
• Experience supporting TVAC or thermal balance testing and model correlation.
• Knowledge of spacecraft materials, coatings, MLI, and thermal hardware.

Responsibilities

• Own spacecraft bus-level thermal design and analysis from concept through flight qualification.
• Define the thermal control architecture for the spacecraft bus (passive and active).
• Develop and maintain Thermal Mathematical Models (TMMs) using Siemens NX Space Systems Thermal within Simcenter 3D.
• Perform steady-state and transient orbital thermal analyses.
• Perform first-principles thermal calculations for radiator and heater sizing and margins.
• Design and implement passive thermal control measures including coatings, MLI, heat paths, and interface conductance.
• Design active thermal control systems including heater sizing, zoning, redundancy, and control philosophy.
• Define thermal requirements, temperature limits, and verification matrices for subsystems.
• Collaborate with structures, avionics, EPS, propulsion, payload, and AIT teams for thermal compatibility.
• Ensure corroboration of design with TVAC and thermal balance testing.
• Perform thermal analysis for avionics and electronics components where required.
• Investigate and resolve thermal anomalies during integration and environmental testing.

Skills

First-principles engineering

Thermal design

Orbital thermal analysis

Heat transfer

TVAC testing

Modeling & simulation

Cross-functional teamwork

Education

Mechanical/Aerospace/Thermal Eng

Tools

Siemens NX Space Systems Thermal (TMG)

Simcenter 3D

FloTHERM

Job description

GALAXEYE SPACE SOLUTIONS PRIVATE LIMITED | Full time

Senior Thermal Design and Analysis Engineer

Banglorenorth, India | Posted on 07/23/2026

You will be joining the Satellite Bus team and working on building the spacecraft bus thermal system . You will own the thermal design and analysis of the satellite bus , ensuring all subsystems operate within allowable temperature limits across mission phases. The role involves developing and maintaining high-fidelity thermal models, defining passive and active thermal control strategies, and supporting integration and environmental testing to deliver a flight-ready spacecraft.

Responsibilities :

Own spacecraft bus-level thermal design and analysis from concept through flight qualification.

Define the thermal control architecture for the spacecraft bus (passive and active).

Develop and maintain Thermal Mathematical Models (TMMs) using Siemens NX Space Systems Thermal (TMG) within Simcenter 3D.

Perform steady-state and transient orbital thermal analyses .

Perform first-principles thermal calculations for radiator sizing, heater sizing, and thermal margins.

Design and implement passive thermal control measures including coatings, MLI, heat paths, and interface conductance.

Design active thermal control systems including heater sizing, zoning, redundancy, and control philosophy.

Define thermal requirements, temperature limits, and verification matrices for spacecraft bus subsystems.

Work closely with structures, avionics, EPS, propulsion, payload, and AIT teams to ensure thermal compatibility.

Ensure corroboration of design with thermal vacuum (TVAC) and thermal balance testing .

Perform thermal analysis for avionics and electronics components where required.

Investigate and resolve thermal anomalies during integration and environmental testing .

Requirements

Must-have Qualifications :

Bachelor’s or Master’s degree in Mechanical, Aerospace, or Thermal Engineering .

3–6 years of experience in spacecraft or aerospace thermal design and analysis.

Mandatory hands‑on experience with Siemens NX Space Systems Thermal (TMG) within Simcenter 3D .

Strong understanding of spacecraft heat transfer and orbital thermal environments .

Experience developing thermal mathematical models and performing orbital thermal analysis .

Ability to validate simulation results using first-principles thermal calculations .

Experience supporting TVAC or thermal balance testing and model correlation .

Solid understanding of spacecraft materials, thermal coatings, MLI, and thermal hardware .

Good-to-have :

Experience with Earth observation satellites .

Familiarity with ISRO / ESA / NASA spacecraft thermal standards .

Experience with electronics/PCB thermal analysis tools (e.g., FloTHERM or equivalent).

Exposure to bus–payload thermal interface design .

Experience working in private aerospace or hardware-focused startups .

Experience across at least one spacecraft development lifecycle .

What we look for :

Strong first-principles engineering mindset and analytical thinking.

Ability to take ownership of subsystem design and drive it to flight readiness.

Comfortable working in cross‑functional hardware teams .

Hands‑on approach with willingness to support integration and environmental testing

Fair compensation will be provided as per market standards

Experience rapid growth and start-up culture

Flexible Working Hours

Open to exploring, discussing and implementing new ideas and processes

Opportunity to work closely with the Founding Team at GalaxEye

Get a chance to work with Advisors holding senior positions and decades of experience