Senior Mechanical Engineer – Heavy-Duty Vehicle Design

Software Guidance & Assistance, Inc. (SGA, Inc.); Oshkosh (WI); On-site; USD 90,000 - 120,000; Full time

Job summary

Software Guidance & Assistance, Inc. (SGA, Inc.) in Oshkosh, WI, is seeking a Senior Mechanical Engineer to design, develop, and integrate mechanical components and systems for heavy-duty vehicles.

You will apply engineering principles to create reliable, cost-effective solutions and support both existing and new platforms. The role emphasizes hands-on problem solving, analysis, and collaboration with design, manufacturing, and test teams to ensure robust performance across vehicle programs.

Qualifications

• Strong understanding of mechanical engineering principles.
• Hands-on problem-solving ability.
• Experience applying engineering practices to automotive/heavy-duty vehicle systems.

Responsibilities

• Design and develop functional, reliable mechanical components and systems for heavy-duty vehicles.
• Perform engineering analysis and component redesign for integration into vehicle platforms.
• Evaluate designs for performance, safety, reliability, manufacturability, and cost.
• Create and maintain 3D CAD models, drawings, and BOMs.
• Provide engineering support to manufacturing, testing, and field performance.

Skills

Mechanical design

Engineering analysis

CAD modeling

Project management

Documentation

Vehicle integration

Problem solving

Tools

3D CAD

BOM management

Job description

Software Guidance & Assistance, Inc. (SGA, Inc.) in Oshkosh, WI, is seeking a Senior Mechanical Engineer to design, develop, and integrate mechanical components and systems for heavy-duty vehicles.

You will apply engineering principles to create reliable, cost-effective solutions and support both existing and new platforms. The role emphasizes hands-on problem solving, analysis, and collaboration with design, manufacturing, and test teams to ensure robust performance across vehicle programs.