Senior Mechanical Engineer, Design & Thermal (Hybrid)

Trystar Inc; Burnsville (MN); Hybrid; USD 105,000 - 130,000; Full time

Job summary

Trystar Inc. in Burnsville, MN is seeking a Senior Mechanical Engineer to own mechanical design from requirements to release, including packaging and CAD layouts, with strong thermal analyses to optimize power equipment.

You will independently develop thermal and fluid models, evaluate cooling concepts, and design thermal-management components while coordinating with electrical, testing, and manufacturing teams. Hybrid work across Trystar sites with up to 20% travel.

Qualifications

• Requires a bachelor's degree in mechanical engineering and 7+ years of relevant experience.
• Hands-on mechanical design, packaging, CAD models and drawings; thermal/fluids modelling.
• Strong cross-functional communication and documentation skills.

Responsibilities

• Own mechanical design from requirements through finished-product release packages.
• Develop enclosures and assemblies using sheet metal, plastics, and extrusions.
• Coordinate PCB mounting and electrical packaging with other engineers.
• Independently develop thermal and fluid models, define assumptions and limits.
• Evaluate cooling concepts and design thermal-management components.
• Lead cross-functional mechanical design reviews and DFMEA/IP reviews.
• Plan prototype builds, perform thermal/flow tests and correlate results.
• Prepare manufacturing work packages and documentation for release.

Skills

Mechanical design

Packaging

CFD

FEM

CAD: SolidWorks

Prototype testing

Test correlation

Cross-functional communication

Education

Bachelor's degree in mechanical engineering

Tools

SolidWorks

Job description

Trystar Inc. in Burnsville, MN is seeking a Senior Mechanical Engineer to own mechanical design from requirements to release, including packaging and CAD layouts, with strong thermal analyses to optimize power equipment.

You will independently develop thermal and fluid models, evaluate cooling concepts, and design thermal-management components while coordinating with electrical, testing, and manufacturing teams. Hybrid work across Trystar sites with up to 20% travel.