Cowboyspace Mechanical Engineer responsible for the design and integration of large deployable radiators for on-orbit compute payloads. Own structural design, deployment mechanisms, and thermal integration from concept through on-orbit deployment.
Responsibilities
As a Mechanical Engineer – Deployable Radiators, you will be the responsible engineer for the large deployable radiators that reject heat from our on-orbit compute payload and integrate the spacecraft’s liquid cooling loop. This is a structures-first, hands-on role: you will own the structural design of the radiator panels, the mechanisms that stow, restrain, and deploy them, and the thermal integration that turns them into a working radiator. You will own this hardware end to end, from concept and analysis through the ground testbeds used to prove it out, qualification, and on-orbit deployment.
These are large, load-bearing structures that must survive demanding launch and ascent environments while stowed and then deploy reliably into a stiff, flat radiating surface on orbit. You will work closely with thermal, structures, manufacturing, propulsion, power, avionics, and software teams to deliver an integrated solution. We’re looking for a strong structures and manufacturing background paired with solid mechanism design skills—someone who can move quickly, iterate often, and take full ownership of hardware that directly determines whether our payload survives launch and stays cool in orbit.
Own the structural design of the deployable radiator panels from concept through flight, sizing them to survive stowed launch and ascent loads and to deploy into a radiating surface.
Perform structural analysis across the full mission profile, including quasi-static and random vibration launch loads and deployed-state dynamics.
Drive design-for-manufacturing of the panels and their assemblies, including joining and/or bonding methods, and work with suppliers to ensure high-quality, scalable production.
Design the deployment mechanisms that stow, restrain, and deploy the radiators—hinges, latches, and release devices—and the interfaces that carry loads into the spacecraft.
Analyze deployment kinematics, mechanism loads, restraint release, synchronization, and deployment reliability and margin, and design out jam and hang-up risks.
Integrate the radiator panels with the liquid cooling loop and perform the thermal design of the radiator—heat rejection, fin efficiency, and thermal gradients—in partnership with the thermal team.
Design, build, and operate ground testbeds and dev rigs to characterize panels and mechanisms, validate deployment, and de-risk the flight design ahead of qualification.
Develop and execute deployment, structural static/modal, vibration, thermal-vacuum, and qualification/acceptance test programs to verify flight-worthiness.
Author and maintain drawings, interface control documents, analysis reports, test procedures, and release/configuration records.
Diagnose and resolve structural, mechanism, and thermal anomalies during integration and test, applying root-cause analysis and implementing corrective actions.
Qualification
BS or MS in Mechanical EngineeringStrong structural fundamentalsProficiency with FEA for staticProficiency with CAD (eExperience working in fast-pacedHands-on experience with prototyping
Required
BS or MS in Mechanical Engineering, Aerospace Engineering, or a related field
3+ years of experience designing and analyzing lightweight structures and mechanical hardware in aerospace or other high-performance environments
Strong structural fundamentals: strength, stiffness, and buckling lightweight structures, and bonded and mechanically fastened joints
Hands-on experience designing mechanisms such as hinges, latches, springs, and release devices or large structural assemblies
Proficiency with FEA for static, modal, and dynamic analysis of structures
Experience taking hardware from concept through build and test, with hands-on integration and test experience
Proficiency with CAD (e.g., NX, SolidWorks, or similar)
Experience working in fast-paced, hardware-focused development environments
Preferred
Direct experience designing deployable structures—radiators, solar array substrates, antennas, or booms—including stowed restraint, deployment mechanisms, and latching
Experience designing for space environments (thermal, vibration, vacuum) and background in spacecraft structures, mechanisms, or thermal systems
Experience with bonded and welded assemblies and sheet-metal or machined-frame fabrication
Airframe or launch-vehicle primary-structure experience, including significant ascent loads
Familiarity with radiator or thermal-control design and thermal-fluid coupling to cooling loops at the spacecraft system level
Knowledge of aerospace standards (MIL-SPEC, NASA-STD, ECSS) and spaceflight hardware qualification and acceptance margins
Hands-on experience with prototyping, machining, deployment test rigs, and gravity-offload or ambient deployment testing
Startup or early-stage hardware experience; comfort operating with significant technical ambiguity