Mechanical Engineer

Endeavour has an exciting opportunity for someone passionate about sustainability and eager to be part of an innovative company that’s on a journey to transform the world’s infrastructure. We are seeking a Mechanical Engineer to join a dedicated engineering team responsible for the mechanical packaging, structural design, thermal-fluid management, and commercial release of high-power, grid-connected converters for utility-scale energy storage, data centers, and industrial electrification. This role requires technical depth in structural mechanics, thermodynamic heat transfer, and physical packaging architectures to design complex, multi-megawatt (multi-MW) cabinet-type power conversion systems. The team owns the entire electro-mechanical lifecycle, spanning initial volumetric trade studies, detailed component-level and system-level thermal/structural (CFD/FEA) designs, and ruggedized enclosure design. The ideal candidate has a proven, referenceable track record of translating complex, heavy-industrial electro-mechanical hardware assemblies from initial concept through prototyping, validation, and regulatory approval to high-volume production. Working in a collaborative, concurrent engineering environment, you will partner with electrical, firmware/controls, compliance, reliability, and manufacturing teams, as well as external suppliers, to transition complex novel physical designs into robust, production-ready platforms. This role requires an agile, self-motivated professional who is comfortable navigating a fast-paced environment. You must be highly organized, an excellent communicator, and capable of operating with complete discretion. We are highly selective because our mission demands it. We look for passionate changemakers who balance extreme talent with self-awareness and humility. In return, we offer a flexible, autonomous environment with endless opportunities for growth. Are you ready to #JoinTheJourney? Key Responsibilities Include but are not limited to: Mechanical Architecture & Cabinet Design: Lead the physical packaging and structural design of multi-MW, industrial-grade cabinets and utility enclosures, including IP-rated and outdoor-rated power equipment. Drive comprehensive trade studies on design, architecture, materials, and manufacturing processes. Thermal Management & Multi-Physics Simulation: Design, model, simulate, and implement advanced thermal dissipation systems (forced-convection air and liquid cooling, including cold plates, thermal interface materials, and optimized airflow paths). Familiarity with structural finite element analysis, thermal computational fluid dynamics, vibration, and fatigue assessments. Power Stacks & Electro-Mechanical Integration: Design and pack high-density electronic assemblies, PCBA interfaces, custom magnetic components, insulators, heavy-duty busbars, and high-voltage/high-current connectors. Balance electrical isolation, EMI/EMC shielding, and mechanical constraints. Documentation & PLM Releases: Create detailed 3D CAD models and professional 2D drawings utilizing Geometric Dimensioning and Tolerancing (GD&T). Perform tolerance stack-up analyses. Assist with engineering documentation, Bills of Materials (BOMs), and help manage engineering change orders (ECOs) through PLM systems. FMEA, Validation, & DVP&R: Participate in mechanical Failure Mode and Effects Analysis (FMEA) and Design Verification Plan and Report (DVP&R) activities. Prototype Development & Lab Testing: Physical prototype fabrication, electro-mechanical assembly, custom test-rig setup, and hands-on mechanical testing of new designs. Support root-cause analysis of pilot or production failures and drive iterative hardware revisions. DFA/DFM & Production Scaling: Collaborate with industrial design, quality, manufacturing, and external suppliers to optimize Design for Manufacturability (DFM), Design for Assembly (DFA), assembly procedures, and tooling strategies. Develop detailed assembly procedures and instructions to support scalable, high-yield production. Skills & Requirements Education / Experience Education: Bachelor’s or Master’s degree in Mechanical Engineering or a related technical field (PhD degree in Mechanical Engineering is a plus). Experience: 10+ years of industry experience in mechanical design and product packaging for power electronics, industrial, or energy products. CAD & Simulation Mastery: Expert-level proficiency in CAD modeling software, including 3DEXPERIENCE (CATIA V5/V6), SolidWorks, NX, or Creo. Theoretical and practical understanding of physics, dynamics, heat transfer, and materials. Advanced Multi-Physics Tooling: Strong background in advanced structural, thermal, and vibration analysis using commercial software (e.g., Ansys, Comsol) Manufacturing Process Knowledge: Demonstrated experience in designing and packaging for injection molding, die casting, extrusion, and sheet metal forming. Working knowledge of metals (aluminum, steel), engineering plastics, ceramics, structural insulators, gaskets, and potting compounds. Mass Production Track Record : Referenceable hands-on experience taking complex, physical electro-mechanical designs from early-stage concept all the way through physical prototyping, supplier tooling development, pilot runs, and successful high-volume production deployment. Safety & Regulatory Compliance: Familiarity with the documentation, testing, and design integration required to meet international regulatory standards (e.g., UL, IEC, NFPA, ISO, etc.). Communication & Collaboration: Exceptional communication skills with the ability to actively participate in technical deep-dives, help coordinate concurrent engineering timelines, and collaborate with suppliers on DFM feedback and tolerance negotiations. Specific Skills / Abilities High proficiency in modern PLM databases (e.g., 3DEXPERIENCE, Windchill, etc.) to manage configurations, CAD assemblies, BOMs, and multi-site manufacturing releases. Experience with medium- to high-voltage systems and insulation coordination (creepage, clearance, potting, sealing). Why Work Here Innovate at Speed : Thrive in a fast-paced, entrepreneurial environment where your ideas actually matter. Own Your Work : Enjoy the flexibility and autonomy to execute and do your best work. Learn from the Best : Collaborate daily with top-tier, experienced industry experts. Elevate Your Craft : Be part of a respectful, continuous-learning culture driven by excellence. Make a Real Impact : Join a team of dedicated changemakers building solutions that benefit people and the planet. About GridTran GridTran is at the forefront of a massive energy transformation, shifting the world toward a sustainable, flexible, and DC-powered grid. We specialize in advanced, proprietary power conversion—powering everything from renewable energy systems to the rapidly expanding AI ecosystem. Our single-stage "grid-to-rack" technology (35kV AC to 800V DC) delivers highly efficient, 24/7 reliable power for AI datacenters with fast time-to-token, at lower costs and emissions than traditional fossil fuels. By seamlessly integrating solar, energy storage, and grid stabilization, we are building the resilient energy infrastructure of the future. As a proud part of the Endeavour ecosystem, we offer our team unparalleled opportunities for innovation and cross-collaboration. About Endeavour Endeavour is rethinking the infrastructure model for the benefit of all. Instead of relying on big, centralized systems that often leave communities locked into outdated networks, we are building an integrated technology stack using modular components that can be repeated and scaled. Operating as a purpose trust, we create a continual cycle of innovation by investing in breakthrough technologies to build faster, cleaner infrastructure for data, energy, materials, and water. We tackle the industry’s most complex challenges by deploying scalable, modular solutions across the AI ecosystem—including carbon-neutral energy and revolutionary data center cooling. Our team of passionate changemakers is driven by a shared mission to build regenerative systems that give back more than they take. To work at Endeavour is to collaborate with proven experts, cut through the unnecessary to get things done, and know you are making a lasting impact on people and the planet. Position : Mechanical Engineer Full-Time or Part-Time : Full-Time Reports to : Founder / CTO Location : (On-Site) Marietta/Atlanta, GA Contact: [email protected]

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