Thermal Systems Engineer

Position Overview GTI Energy is seeking a Senior Mechanical Engineer to lead mechanical and thermal system design for enclosed industrial products—including BESS platforms, modular data centers, power skids, and integrated energy infrastructure. The role focuses on designing cooling systems, airflow management strategies, enclosure integration, and mechanical assemblies that perform reliably under real‑world operating constraints. This is not a traditional HVAC or commercial building engineering role; candidates must have experience designing cooling systems for enclosed equipment and industrial systems where space limitations, airflow management, manufacturability, vibration, acoustics, serviceability, and environmental conditions must all be considered simultaneously. Key Responsibilities Thermal System Design & Cooling Integration Design and integrate cooling systems for enclosed industrial equipment including BESS systems, modular data centers, power distribution equipment, and power generation platforms. Size cooling systems based on actual equipment heat loads, thermal rejection requirements, and operating conditions. Develop airflow strategies inside enclosed systems, including ducting, circulation paths, pressure balancing, intake/exhaust placement, and thermal zoning. Design systems for worst‑case ambient conditions, elevated operating loads, and real‑world environmental constraints rather than nominal conditions only. Select and integrate off‑the‑shelf cooling equipment—including HVAC units, heat exchangers, fans, chillers, and thermal management components. Mechanical System Design & Product Development Own mechanical design from concept through production release, including enclosure layouts, mounting systems, access requirements, structural interfaces, and equipment integration. Develop 3D CAD models, assemblies, manufacturing drawings, and BOMs using SolidWorks and related engineering tools. Design for manufacturability, assembly efficiency, serviceability, and long‑term reliability. Support integration of pumps, piping, cable routing, thermal barriers, and mechanical support systems. Coordinate packaging constraints involving electrical systems, structural members, airflow, and maintenance access. Analysis, Validation & Engineering Calculations Perform thermal analysis, airflow modeling, and engineering calculations supporting cooling system performance. Support CFD analysis and interpretation where applicable. Validate mechanical and thermal performance through testing, prototype evaluation, and field feedback. Participate in heat runs, system testing, troubleshooting, and performance optimization activities. Ensure designs meet customer, regulatory, and operational requirements. Cross‑Functional Engineering Collaboration Partner with Electrical Engineering, Structural Engineering, Manufacturing Engineering, NPI, Quality, and Operations teams throughout the product development lifecycle. Collaborate closely with manufacturing teams to ensure designs align with fabrication, welding, assembly, and integration capabilities. Support prototype builds, pilot programs, and production launch activities. Work directly with Supply Chain and vendors on component selection, manufacturability, and technical problem solving. Design for Manufacturing (DFM) & Production Support Drive DFM initiatives focused on reducing complexity, improving repeatability, and supporting scalable production. Design around manufacturing constraints—including weldments, sheet metal fabrication, assembly sequencing, and production tolerances. Resolve production issues quickly and support continuous product improvement efforts. Standardize mechanical design approaches, cooling architectures, and reusable engineering solutions where possible. Continuous Improvement & Technical Leadership Support root‑cause analysis for field issues, thermal failures, or performance deviations. Contribute to engineering standards, design guides, and best practices across product lines. Mentor junior engineers and provide technical leadership on mechanical and thermal design challenges. Drive continuous improvement in performance, cost, manufacturability, and reliability. Requirements Required Qualifications Bachelor’s degree in Mechanical Engineering or a related engineering discipline. 6–12+ years of experience in mechanical engineering, thermal systems design, or product development within industrial or engineered product environments. Experience designing cooling systems for enclosed equipment—not commercial building HVAC systems. Strong experience with thermal management for battery systems, power electronics, industrial skids, generator enclosures, modular data centers, switchgear, or similar products. Experience sizing cooling systems based on actual equipment heat loads and operational requirements. Strong understanding of airflow management inside enclosed systems. Proficiency with SolidWorks or similar 3D CAD platforms. Strong knowledge of manufacturability, fabrication methods, and industrial product integration. Preferred Qualifications Experience supporting BESS, modular data centers, power systems, or industrial energy infrastructure. Experience with CFD analysis and thermal modeling tools. Background in sheet metal, weldments, enclosure design, or industrial packaging. Experience in contract manufacturing or engineered‑to‑order product environments. Familiarity with UL requirements, environmental testing, or industrial compliance standards. Experience operating in fast‑paced, high‑growth engineering organizations. Benefits & Perks Medical, dental, and vision insurance. 401(k) with company match (where applicable). Paid Time Off (PTO) and paid holidays. Sick time in accordance with state and local requirements. Company‑paid life insurance and disability coverage. Career advancement opportunities within a rapidly growing organization. Exposure to advanced manufacturing, modular infrastructure, and large‑scale industrial projects. Collaborative, fast‑paced environment with strong operational and engineering leadership. Employee‑focused culture centered on safety, quality, accountability, and continuous improvement. Benefits eligibility and offerings may vary based on position, location, and employment classification. Equal Opportunity Employer GTI promotes a diverse and inclusive workforce and is an Equal Opportunity Employer that does not discriminate against employees or applicants for employment on the basis of race, color, national origin, ancestry, age, religion, sex, gender, gender identity, gender expression, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, marital status, or any other Federal or State legally‑protected classes. We also value the safety of all employees and work hard to maintain a Drug Free Workplace. #J-18808-Ljbffr