Mechanical Engineer I
3Si
This job at a glance
- Who can apply
- New grads and up to 3 years · Bachelor's degree
- Must know
- Project managementCAD
- Nice to have
- SolidWorks
- Work
- On-site in Jefferson City
- Pay
- Not stated by the employer.
- Skill demand
- CAD54%SolidWorks27%Project management11%of 132 similar entry-level jobs posted in the US this week
- Listed
- Nov 5, 2026 · still open
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About the Role
This is an opportunity for a detail-oriented Mechanical Engineer to join the engineering team in Jefferson City, MO. The role involves applying engineering knowledge, building hands-on design experience, and contributing to the development of production-ready components and assemblies. The position supports products from concept through production, with an emphasis on designing parts for injection molding and high-volume manufacturing. The engineer will develop knowledge of Design for Manufacturability (DFM), tooling considerations, and material selection, while optimizing designs for cost, quality, and manufacturability.
Key Responsibilities
- Design and develop mechanical components and assemblies to meet project specifications and applicable industry standards.
- Collaborate with engineers, project managers, manufacturing and quality personnel, and tooling vendors to support product development.
- Utilize CAD software for design creation and modification, ensuring accuracy and adherence to project timelines.
- Prepare and update technical drawings, specifications, and related documentation for manufacturing and assembly.
- Support prototype development, testing, and analysis; document results and help identify opportunities for design improvements.
- Participate in design reviews and assist with resolving design and manufacturing issues throughout the product lifecycle.
- Learn and apply DFM principles, including material selection and tooling considerations for injection molding and/or die casting.
- Continue developing technical skills and knowledge of mechanical design, materials, and manufacturing processes.
Requirements & Tech Stack
- Foundational understanding of mechanical engineering principles, materials, and manufacturing processes.
- Interest in learning about injection molding and/or die casting, including part design and tooling considerations.
- Strong attention to detail and a practical approach to problem-solving.
- Ability to organize tasks, manage competing priorities, and communicate progress with guidance.
- Effective communication and teamwork skills, with a willingness to ask questions, seek feedback, and learn from others.
Qualifications
- Bachelor’s degree in Mechanical Engineering or a related field required.
- 0–3 years of relevant mechanical engineering or product design experience.
- Familiarity with CAD software through coursework, academic projects, internships, or professional experience; SolidWorks experience preferred.
- Exposure to injection molding, die casting, or DFM through coursework, projects, or work experience is a plus.
Position is based in Jefferson City, MO.
In-Person requirement M-F, 8:00 am to 4:30 pm CT.
Less than 5% of travel.