Mechanical Engineer

selinc· Schweitzer Engineering Laboratories, Inc.
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📍 Idaho - LewistonFull time

About this role

Mechanical Engineer (Multiple Levels) – Plastics / Tool & Die Engineering

We are hiring Mechanical Engineers at multiple levels in Lewiston, ID. Whether you are early in your career and looking to grow as a mechanical engineer or have several years of experience, we have a place for you on our team.

 

What you will do
In this position, you will be working with internal and external customers to solve plastic injection molding problems. This includes both consulting on part design and designing tooling that meets the needs of the production teams. Consulting often consists of working with R&D Engineers to implement plastic part Design for Manufacturability while considering the part function and assembly context. In addition to the mechanical design, you would also perform mold flow analysis utilizing Moldex3D FEA software. The results of these efforts inform the mold design work you will perform to ensure the production team has a high-quality, reliable tool.

 

 

A typical day in the role might include:

Consulting

• Plastic part design

• Design for manufacturability reviews

• FEA - mold flow analysis

Tooling Design

• Quoting internal tool builds

• Writing mold specifications, getting external tooling quotes, and managing the project including review of vendor tool designs

• Mold design

• Future tooling design opportunities may include press brake tooling, punch tooling, progressive dies, and other areas as Vertical Integration continues to grow.

 

 

Other Essential Duties and Responsibilities
1. Perform the following mechanical engineering functions:
-- assembly design
-- plastic and metal part design
-- tolerance studies
-- design for manufacturability/assembly
-- component selection and specification
-- thermal analysis and design
2. Qualify and monitor tooling vendors.

3. Generate and maintain accurate Bills of Material. Provide accurate labor and material estimates.

4. Review, support, approve and provide recommendations for improvements to documentation, mechanical designs, and manufacturing process design.

5. Maintain current and accurate project notebooks.

6. Mentor ME Interns, Designers, and Associate ME’s.

7. Follow and apply SEL Values, Principles of Operations, and World Class Manufacturing Principles.

8. Understand. Create. Simplify.

9. Other duties as assigned.

 

 

This job might be for you if you are a US Citizen and if you: 
B.S. and/or M.S. in Mechanical Engineering
2+ years’ experience in three or more of the following areas:
-- electromechanical packaging design
-- heat transfer
-- materials and processes
-- mechanics
-- computer-aided design
Strong problem-solving skills
Strong project management experience
Strong writing, documentation, and speaking skills
Ability to learn new skills and assume new responsibilities
Ability to work effectively in a team environment
Background check results satisfactory to SEL
Negative drug test result(s)

Preferred Qualifications
2+ years SolidWorks or TopSolid experience
Injection mold design experience

Industrial plastics

Thermal modelling

Finite Element Analysis

 

Location

Lewiston, ID – This position is located in Lewiston, ID where you'll enjoy an unmatched quality of life. Enjoy the smaller town life: country space, freedom from traffic, easy access to recreational activities in nearby mountains, rivers, and forests, as well as great schools and universities.

Competitive pay. Superior benefits. Inspiring work.

People are at the core of our company and we hire employee-owners. We welcome you to learn more about how we support employees.

  • We’re 100% employee owned. Retirement benefits include an employer funded stock ownership plan (ESOP) and personal 401(k) options.
  • We offer top tier medical, prescription, dental, vision, life, and disability insurance.
  • We recognize the importance of a healthy life balance and offer: 10 paid holidays, annual vacation accrual starting at 12 days, 9 paid sick days, and paid family and medical leave that covers 90% of your pay.
  • We foster growth and development of our employees through avenues such as STEM courses, apprenticeships, tuition assistance, and engineering development programs.  
  • Ask our team about other benefits including wellness, fertility, adoption, and flexible spending benefits.

Pay Range Data –

$91,500 - $124,500 annually - Associate Mechanical Engineer

$100,600 - $144,400 annually - Mechanical Engineer

We set starting pay based on job-related factors such as your experience, training, knowledge, and skills. Depending on your background, we may consider you for a different level, with compensation aligned accordingly.

 

Communication with Applicants 

We communicate with all applicants. If you do not receive a response about your application, please check your SPAM filter or reach out to us at careers@selinc.com.

SEL is an Equal Opportunity Employer: Vets/Disabled.

Frequently Asked Questions

Is the salary disclosed for the Mechanical Engineer position at selinc?
The salary for this Mechanical Engineer role at selinc is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Mechanical Engineer position at selinc located?
This Mechanical Engineer role at selinc is based in Idaho - Lewiston. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Mechanical Engineer role at selinc full-time or part-time?
This is listed as a Full time position. It is posted as a Mechanical Engineer role in the Schweitzer Engineering Laboratories, Inc. department at selinc.
Which team or department does the Mechanical Engineer at selinc belong to?
This Mechanical Engineer position is part of the Schweitzer Engineering Laboratories, Inc. department at selinc. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Mechanical Engineer position at selinc?
Click the "Apply Now" button on this page. You will be redirected to selinc's official application portal hosted on workday where you can submit your application directly.
When was the Mechanical Engineer job at selinc posted?
This Mechanical Engineer position at selinc was posted on Sep 25, 2026. Apply as soon as possible — early applications are often reviewed first.
Mechanical Engineer
selinc
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