Heat Transfer Jobs

An onsite Summer 2026 Mechanical Engineering intern role at CesiumAstro focused on designing and testing space structures and thermal systems for satellite communication hardware.

Work on thermal-fluids modeling and CFD-driven design for a fast-moving microreactor program at Antares' Torrance R&D and production facility (US work-authorization required).

Blue Origin seeks a Senior Mechanical Engineer to own the development and integration of thermal components for the Blue Moon Crew Lander on the Lunar Permanence team.

An early-stage engineering role for a motivated Mechanical Engineer 1 to contribute to design, analysis, and prototyping as Monarch scales.

Experienced HVAC/Refrigeration engineer needed to design and optimize industrial refrigeration systems for a manufacturing company working on advanced, high-impact projects.

Lead and own CFD-driven thermal-fluid analysis for heat exchangers at Last Energy, turning simulations into design decisions that guide productized nuclear plant hardware.

Experienced thermal analysis engineer needed to lead system-level thermal modeling and integration for Blue Origin's lunar landers using Thermal Desktop/SINDA across all mission phases.

Be the customer-facing thermal expert who validates thermal designs, runs simulation-driven test cases, and helps integrate our AI assistant into real engineering workflows.

Lead thermal design, analysis, and test for space hardware at Anduril's Space team, driving thermal architecture and verification for mission-critical systems.

AECOM is hiring a Mechanical Engineering Intern in Denver for Summer 2026 to assist with HVAC/MEP design and BIM-based modeling under experienced engineering mentorship.

Senior-level mechanical engineer needed to lead end-to-end hardware design, prototyping, analysis, and test for space systems at a fast-moving defense tech company.