Mechanical Design Engineer - Outdoor Solar & ESS Inverters (EE26121)

TMEIC Corporation Americas•Roanoke, VA

16d

About The Position

Design, develop, and validate mechanical systems for outdoor photovoltaic (PV) and energy storage system (ESS) inverter platforms. The role supports reliable performance, environmental protection, manufacturability, and serviceability in harsh outdoor conditions. It involves developing mechanical architecture and design documentation, integrating cooling systems, evaluating designs, coordinating prototype builds and testing, and improving products based on validation and field findings. The engineer collaborates with electrical, thermal, controls, sourcing, manufacturing, and testing teams, and may contribute to proposal, field, and client-facing activities. The position also includes general employee accountabilities: delivering assigned work, advising the manager, communicating early when work cannot be delivered as specified, collaborating across teams, exemplifying company values, complying with policies and regulations, proactively recommending improvements, and using business tools and processes effectively. Domestic and international travel of less than 20% may be required, occasionally with limited notice.

Requirements

Bachelor’s degree in mechanical engineering, aeronautical engineering, or a related field, or equivalent through education and/or work experience.
At least 3 years of demonstrated mechanical design experience in power electronics, inverters, switchgears, transformers, outdoor industrial equipment, or related mechanical systems.
Demonstrated experience with 3D CAD tools such as SolidWorks, Creo, NX, or equivalent.
Demonstrated experience with multiphysics simulations, including FEA/CFD, using tools such as COMSOL or ANSYS Maxwell.
Understanding of structural design, materials, and manufacturing processes such as sheet metal, casting, machining, or related fabrication methods.
Understanding of thermal management and cooling systems for power electronics.
Familiarity with outdoor equipment environmental design requirements, including IP and/or NEMA ratings.
Successful working relationships with clients, suppliers, and internal and external contacts.
Positive personal leadership, interpersonal, organizational, administrative, and communication skills.
Demonstrated continuous improvement in areas of responsibility.
Proficiency in Microsoft Office programs.
Availability for domestic and international travel of less than 20% as needed, occasionally with limited notice.

Nice To Haves

At least 5 years of demonstrated mechanical design experience in power electronics, inverters, switchgears, transformers, outdoor industrial equipment, or related mechanical systems.
Demonstrated experience designing equipment to meet UL, IEC, or other standards relevant to outdoor electrical equipment.
Demonstrated experience with liquid cooling system design.
Demonstrated experience working with global teams.
Demonstrated experience developing and onboarding domestic and global suppliers.

Responsibilities

Design inverter mechanical systems, including enclosures, structural frames, mounting systems, internal layouts, and component packaging, to meet product and project requirements.
Develop 3D models, detailed drawings, bills of material, and engineering documentation for manufacturing, assembly, and product release.
Define mechanical architecture, clearances, accessibility, and serviceability requirements in coordination with electrical, thermal, controls, sourcing, manufacturing, and testing teams.
Design outdoor-rated enclosures and mechanical systems to address ingress protection, ventilation, sealing, condensation control, corrosion, solar loading, ambient temperature, altitude, acoustic, and vibration requirements.
Integrate cooling components and mechanical features, including airflow paths, ducting, heat sink structures, fans, heat exchangers, and pumps, in collaboration with thermal and electrical teams.
Perform structural, vibration, tolerance stack-up, manufacturability, and thermal-stress evaluations to validate designs and reduce product risk.
Coordinate prototype builds, environmental testing, mechanical testing, and validation activities; identify and implement required design modifications.
Analyze field issues and root causes, and implement mechanical design improvements to reduce failures and improve reliability.
Apply design-for-manufacturability, assembly, serviceability, and cost principles to improve fabrication, assembly, localization, supplier qualification, and lifecycle cost.
Participate in design reviews and provide technical input to proposal, field, and client-facing activities as needed.
Deliver assigned work, advise the manager, and give early notice when work cannot be delivered as specified.
Collaborate with peers and cross-organizational contacts; exemplify company values and comply with company policies, procedures, regulations, and laws.
Recommend viable improvements proactively and ensure effective use of business tools and processes.