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October 17, 2026
Senior Space Thermal Systems Engineer
Senior • On-site
Praha, Czech Republic
Quick Facts
Role: Senior Space Thermal Systems Engineer
Description
Design, develop, and verify spacecraft thermal systems from concept through operation. Perform thermal design and analysis, develop and maintain thermal models, and support thermal control concepts and design trade-offs. Translate thermal requirements into design, verification, and documentation inputs while ensuring ECSS compliance.
Responsibilities
Perform thermal design and analysis for spacecraft structures, equipment, payloads, and subsystems
Develop and maintain thermal models
Support definition of spacecraft thermal control concepts and thermal design trade-offs
Analyze thermal requirements and translate them into design, verification, and documentation inputs
Prepare thermal budgets, predictions, margins, assumptions, and interface data
Support specification and technical coordination of thermal hardware and supplier inputs
Prepare inputs for thermal verification, including test predictions, instrumentation, data evaluation, and model correlation
Participate in environmental test campaigns and support preparation of test reports
Prepare technical documentation (specifications, analysis reports, procedures, compliance inputs, review data packages)
Present technical results to internal teams, customers, suppliers, and international project partners
Support proposals, technical work package definition, effort estimates, and review preparation
Requirements
Master’s degree in aerospace engineering, mechanical engineering, thermal engineering, applied physics, or a comparable technical field
5 to 10 years of experience as a spacecraft thermal systems engineer or equivalent experience
Solid knowledge and hands-on experience with ECSS standards
Experience with thermal engineering for spacecraft/aerospace applications
Good understanding of heat transfer principles and practical engineering analysis
Experience with thermal analysis, thermo-elastic modeling, calculations, and requirements interpretation
Ability to work with models, boundary conditions, material properties, assumptions, margins, and interface data
Experience with at least one relevant simulation, analysis, or engineering calculation tool
Ability to work in interdisciplinary and international project teams
Experience with the full satellite lifecycle (Phases A, B, C, D, E)
Strong communication and organizational skills
Fluency in written and spoken English
Willingness to travel within Europe and represent the company at conferences and industry events
Benefits
Work on cutting-edge space technology projects with direct impact on real missions
Access to advanced software and satellite control systems
Participation in national and international space projects
Stable working background and access to top technologies
5 weeks of vacation
Meal allowance
Allowance for supplementary pension insurance
Allowance for leisure activities
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