Spacecraft Thermal Engineer

About The Team

Mission Solutions - The Platforms
Mission Solutions builds on Umbra's expertise in remote sensing and spacecraft operations to engineer platforms purpose-built for U.S. and allied defense and intelligence missions. Whether it's a custom payload, a full-stack spacecraft, or the infrastructure behind an entire constellation, our team delivers secure, resilient systems tailored to exacting requirements and built on timelines that match the urgency of the mission.

About The Job

We are seeking a skilled and motivated professional to join our multidisciplinary engineering team as a Spacecraft Thermal Engineer to support Umbra's Mission Solutions business unit. This is a unique role, providing you with both ownership and oversight of new and innovative spacecraft products to support a variety of Mission Solutions customer mission sets.

Key Responsibilities

• Create entire spacecraft thermal analysis models to inform spacecraft design, including:
• Collaborating with cross-functional teams to define and refine requirements.
• Developing initial concept analysis models.
• Working closely with other engineers across the company to optimize designs for performance and manufacturability.
• Creating detailed analysis documentation, including analysis reports, reduced node/element models.
• Partnering with technicians and manufacturing engineers to develop and execute test plans.
• Create system and subsystem thermal analysis modes.
• Run on orbit thermal analysis of whole spacecrafts and use test data to correlate your models.
• Support early design efforts for Mission Solutions pursuits and captures.
• Provide thermal engineering support to other engineering teams as needed.
• Travel up to 15% may be required between Umbra facilities in California and Northern Virginia, as well as to partner and customer locations.
• Performing other duties as required.

Requirements

• Bachelor of Science in Engineering, Physics, or a related field.
• 3-5+ years of professional experience in thermal engineering or a related discipline, preferably within aerospace or high-reliability systems.
• Strong foundation in first-principles analysis in complex environments.
• Demonstrated experience developing and executing thermal models for spacecraft, subsystems, and electronic components.
• Experience performing component- and board-level thermal analysis to support design and validation efforts.
• Hands-on experience with thermal vacuum (TVAC) testing and correlating analytical models to test and/or on-orbit data.
• Proficiency with industry-standard thermal analysis tools such as Thermal Desktop or Icepak.
• Prominent ability to translate analysis results into actionable design recommendations and drive thermal design improvements.
• Strong communication and collaboration skills, with the ability to work effectively across multidisciplinary engineering teams.
• Ability to obtain and maintain a U.S. Government security clearance.

Desired Qualifications

• 8-10+ years of professional experience in thermal engineering or a related discipline, preferably within aerospace or high-reliability systems.
• Comfortable working in a dynamic, fast-paced development environment.
• Multi-disciplinary mechanical engineer with desire to lead & support a full development.
• Proficiency in CAD software, with experience in design and drafting to ASME Y14.5 standards.
• Experience with assembly, integration, testing including developing and executing test plans.
• Experience with mechanical analysis & STOP analysis (structural, thermal, optical, performance).
• Proficiency in programming languages such as Python, C++, Arduino, or MATLAB.
• Experience with delivery of a spacecraft or subsystems to stakeholders.
• Experience working with RF devices and understanding of their basic principles.
• Active security clearance.