Job descriptionWe are looking for an experienced thermal engineer to play a central role in the architecture, design, and validation of Generac's clean energy products, with a strong emphasis on innovative thermal solutions across power electronics and energy storage systems. Roles and Responsibilities - Architect, design, model, and validate thermal solutions for Energy Storage Systems (ESS) and power electronics - Build CFD models and instrumented thermal test vehicles to validate designs against simulation - Create thermal solutions that balance performance, form, and function across the product portfolio - Optimize designs for thermal performance, DFM/DFA, acoustics, size, reliability, and cost - Provide clear, actionable thermal design guidance to cross-functional engineering teams - Size and select components for passive, forced-air, liquid, and two-phase thermal solutions - Manage thermal supplier relationships, supporting component selection, validation, and integration - Partner with validation and reliability teams to define thermal test parameters and acceptance criteria - Collaborate with software and firmware teams to establish thermal policies for control algorithms Minimum Qualifications - Bachelor's degree in mechanical engineering or a related field - Minimum 7 years of hands-on experience in thermal design and electronics cooling - Willingness to travel up to 30%, including international travel Knowledge, Skills, and Abilities - Expert-level knowledge of heat transfer, thermodynamics, and fluid mechanics - Expertise modeling passive cooling, forced-air, liquid cooling, two-phase systems, battery thermal behavior, and solar radiation - Proficiency sizing and selecting fans, radiators, heat sinks, heat pipes, and related components - Experience with instrumentation and data acquisition methods for thermal validation - Expert proficiency in Ansys, Flotherm, Star-CCM+, or a comparable CFD package Preferred Qualifications - Master's degree in mechanical engineering with a specialization in heat transfer - Demonstrated record of bringing thermally complex products from development into volume production - Experience with thermal solutions for outdoor NEMA/IP-rated products - Background in validation testing, product reliability, and failure analysis - Proficiency with 3D CAD tools (Creo or SolidWorks preferred) - Experience designing thermal solutions specifically for battery energy storage systems - Familiarity with battery pack failure modes, including thermal runaway, outgassing, and propagation - Working knowledge of UL 9540A regulatory requirements and associated testing - Excellent written and verbal communication skills