Staff Mechanical Engineer – Power Electronics Enclosures

RiseMe; Burnsville (MN); On-site; USD 110,000 - 140,000; Full time

Job summary

Trystar is seeking a Staff Mechanical Engineer to lead design efforts for power conversion solutions across MN, TX, NC, and NH. This role requires in-person presence in the office and offers a path to shape advanced electrical equipment and packaging.

You will design, analyze, and validate mechanical systems for rack-mounted equipment and modular power devices, collaborating with R&D, manufacturing, and suppliers while mentoring junior engineers to ensure quality and timely delivery.

Qualifications

• Bachelor's degree in Mechanical Engineering or equivalent.
• 7+ years of mechanical design engineering experience in power electronics packaging.
• Experience with power electronic system design within electrical equipment, heavy industry, or military sectors.
• Proficiency with ERP and CAD systems, especially SolidWorks.
• Knowledge of ASME, NEMA, UL, IEC and other mechanical standards.
• Experience generating BOMs and detailed drawings for sheet metal, plastic, extruded parts.
• Proficient with Microsoft Office and cloud services.
• Willingness to travel up to 20% in the USA/Canada.

Responsibilities

• Perform complete mechanical design, including layout, part/assembly modeling, drawings, and mechanical requirements definition.
• Support advanced engineering analysis, including system-level thermal analysis, FEA, and CFD simulations.
• Define, design, prototype, validate, and support mechanical systems for products such as Rack-Mounted equipment, modular power devices, UPSs, Rectifiers, Inverters, and more.
• Lead mechanical design reviews and provide technical guidance across multiple product lines at Trystar sites.
• Work with hardware design engineers to develop PCB mounting and packaging requirements.
• Develop detailed 3D CAD models and drawings, including complex surfaces, routed assemblies, and mechanical enclosures.
• Collaborate with cross-functional teams (QA, Manufacturing, Assembly) to improve product designs, documentation, and manufacturability.
• Design and validate assembly and test fixtures; support prototype builds and production launches.
• Manage BOMs, documentation for new and existing parts, using database tools (e.g., Empower, PDM, Epicor)
• Answer vendor questions regarding mechanical parts (change requests, obsolescence, substitution).
• Define and document mechanical requirements and best practices for enclosures of power conversion systems.
• Contribute to efforts to standardize design practices across sites.
• Provide technical mentorship and guidance to design engineers, test technicians, fabrication, and assembly personnel.

Skills

Power electronics design

CAD (SolidWorks)

Documentation & BOMs

ERP familiarity

Microsoft Office

Travel readiness

Education

Bachelor's degree in Mechanical Engineering

Tools

SolidWorks

ANSYS

COMSOL

Job description

Trystar is seeking a Staff Mechanical Engineer to lead design efforts for power conversion solutions across MN, TX, NC, and NH. This role requires in-person presence in the office and offers a path to shape advanced electrical equipment and packaging.

You will design, analyze, and validate mechanical systems for rack-mounted equipment and modular power devices, collaborating with R&D, manufacturing, and suppliers while mentoring junior engineers to ensure quality and timely delivery.