Lead Mechanical Engineer – Thermal, Space Vehicle and Payload

🔥 12 hours ago

🐊 Florida, Maryland – Remote

🐊 Florida – Remote 🦀 Maryland – Remote

💵 $106k - $197k / year

⏰ Full Time

🟠 Senior

🧑‍🔧 Mechanical Engineer

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L3Harris Technologies

WebsiteLinkedInAll Job Openings

10,000+ employees

🏭 Manufacturing

💼 Consulting

📦 Logistics

Manufacturing • Consulting • Logistics

L3Harris Technologies is a global aerospace and defense technology innovator, specializing in providing advanced solutions across air, land, sea, space, and cyber domains. The company focuses on delivering capabilities in areas such as autonomous systems, command and control, electronic warfare, and resilient communications, supporting both national security and commercial markets. Committed to innovation, L3Harris Technologies aims to advance technologies that enable their customers to effectively tackle the most complex challenges.

📋 Description

• Serve as the technical lead for spacecraft-level thermal design, defining architecture, strategies, and requirements for high-reliability space vehicles • Develop detailed thermal models and analyses for all mission phases, including worst-case hot/cold environments, eclipse conditions, orbital variations, and mission-specific scenarios • Lead creation and validation of thermal control hardware, including radiators, coatings, heat pipes, surface finishes, insulation, heaters, and conductive interfaces • Own thermal performance budgets and flow-down of requirements to payloads, avionics, structures, and propulsion subsystems • Evaluate thermal impacts of system trades, configuration changes, power profiles, and operational timelines • Direct development of thermal math models using Thermal Desktop, SINDA/FLUINT, ESATAN-TMS, or equivalent • Provide leadership during spacecraft hardware build, integration, and test, including TVAC planning, execution, anomaly resolution, and correlation of test results to analysis • Guide environmental considerations for space platforms including radiation, conduction, convection-free behavior, material properties, surface degradation, and mission life effects • Collaborate with systems engineering, mechanical design, power, RF, digital hardware, manufacturing, and mission assurance teams • Mentor junior and mid-level engineers and drive continuous improvement in thermal engineering processes • Prepare thermal requirements, analysis reports, review packages, test plans, and verification matrices

🎯 Requirements

• Bachelor of Science Degree in Engineering and a minimum of 9 years of prior relevant experience, or Graduate Degree in Engineering and a minimum of 7 years of prior related experience, or in lieu of a degree, minimum of 13 years of prior related experience • 5+ years professional experience using Thermal Desktop • Prior or current professional experience with thermal design and analysis for space environment/products • 2+ years of experience as an IPTL or providing technical leadership to an engineering team • Ability to obtain a US security clearance • Experience designing for a space environment • Deep understanding of spacecraft materials, thermal coatings, MLI, conductive interfaces, and active thermal control elements • Demonstrated success in developing, validating, and correlating thermal models to TVAC results • Experience working on government, DoD, or national security space missions • Knowledge of mission-specific environments such as GEO, LEO, cislunar, or deep space • Broad knowledge of thermal-fluids physics including heat conduction and convection of multi-phase flows • Experience creating and overseeing the development of thermal testing control logic in SINDA/FLUENT • Familiarity with structural-thermal-optical (STOP) analysis, deployment mechanism thermal behavior, or thermal considerations in RF/high-power payloads • Experience with reliability assessments, derating, and long-duration thermal performance modeling

🏖️ Benefits

• Relocation assistance is available to qualified applicants • Health and disability insurance • 401(k) match • Flexible spending accounts • EAP • Education assistance • Parental leave • Paid time off • Company-paid holidays • 9/80 schedule with every other Friday off

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