Senior Engineer

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), is searching for a Mechanical Engineer for an opportunity with one of our premier clients in Oshkosh, WI.

Position Summary

The Senior Engineer - Mechanical designs, develops, and integrates functional, reliable, and cost-effective mechanical components and systems for heavy-duty vehicles. This role is responsible for performing engineering analysis, designing and re-designing components, and supporting the development and integration of mechanical systems into both existing and new vehicle platforms. This position requires a strong understanding of mechanical engineering principles, hands-on problem-solving ability, and experience applying engineering practices to automotive, heavy-duty vehicle, mobile equipment, or similar complex mechanical systems.

Key Responsibilities

Mechanical Design & Development

• Design and develop functional, reliable, and cost-effective mechanical components and systems for heavy-duty vehicles.
• Perform engineering analysis and design or re-design components for integration into existing and new vehicle platforms.
• Evaluate designs for performance, safety, reliability, manufacturability, and cost.
• Perform engineering calculations and utilize analytical and mathematical methods to evaluate and optimize system and component performance.
• Support the selection of appropriate parts, components, materials, and technologies based on engineering requirements.
• Provide integration and execution support for vehicle and component design activities.
• Develop solutions to moderately complex engineering problems using established engineering principles, standards, and practices.

Project & Technical Ownership

• Take responsibility for assigned projects, components, or technical workstreams of limited to moderate complexity.
• Manage multiple engineering projects and priorities as required.
• Develop project plans, technical approaches, engineering analyses, and supporting documentation.
• Maintain project documentation related to engineering analysis, research, testing, decisions, and historical records.
• Communicate project status, technical findings, risks, and recommendations to engineering leadership and stakeholders.
• Make sound engineering decisions based on analysis, available data, established practices, and business requirements.

CAD, Drawings & Engineering Documentation

• Create, review, and maintain 3D CAD models, assemblies, layouts, engineering drawings, specifications, and Bills of Material (BOMs).
• Ensure engineering designs and documentation comply with applicable company and industry standards.
• Enforce proper use of engineering criteria, drawing standards, design practices, and documentation processes.
• Support engineering changes and product updates through established engineering processes.
• Prepare technical proposals, quotations, reports, presentations, and other engineering documentation.

Vehicle Integration & Production Support

• Provide technical assistance and engineering support to manufacturing and production operations.
• Investigate and resolve mechanical issues identified through production, testing, field performance, supplier feedback, or internal customers.
• Analyze reported engineering issues and develop practical, effective corrective actions.
• Support vehicle and component testing, validation, troubleshooting, and implementation activities.
• Communicate technical issues and resolution status clearly to appropriate stakeholders.
• Provide timely engineering support to help maintain production and business continuity.

SGA is an Equal Opportunity Employer and does not discriminate on the basis of Race, Color, Sex, Sexual Orientation, Gender Identity, Religion, National Origin, Disability, Veteran Status, Age, Marital Status, Pregnancy, Genetic Information, or Other Legally Protected Status. We are committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, and our services, programs, and activities. Please visit our company EEO page to request an accommodation or assistance regarding our policy.