Design Engineer - PT

Introduction

At Senneca, we embrace the entrepreneurial spirit of the innovators that created our brands from traffic doors, to cold storage doors to fiberglass doors and beyond. We are committed to exceeding our customers’ expectations and to provide doors that offer safety and protection to our customers’ most important assets…people, products, capital investments and processes.

Overview

We are searching for an experienced Part-time Design Engineer - PT at our Mankato, MN facility.

Flexible hours: Great for experienced designers, career‑shifters or those with education and strong technical aptitude!

We’re looking for someone who loves solving problems, creating clarity from complexity, and bringing ideas to life. If you have experience in design, drafting, manufacturing, engineering, or even just a strong technical mindset — we’d love to talk. Whatever you’ve done, whatever you bring — let’s have a conversation.

Responsibilities

Create manufacturing drawings and documentation based on customer orders and specifications.
Develop submittal drawings for customer approval.
Build Bills of Materials in our ERP system for project‑specific needs.
Work in 3D parametric modeling software.
Support the plant with technical questions during manufacturing.
Create installation instructions and parts manuals that are clear and user‑friendly.

Requirements

What You Might Bring

(These are helpful — not hard requirements. If you have related experience, we want to hear from you!)

Background in Mechanical Engineering Technology, Architectural Technology, Manufacturing Technology, Drafting, or similar — or equivalent experience.
Around 4+ years of education, design or drafting experience (but again — let’s talk if you’re close!).
Experience with 3D parametric modeling (Inventor, CREO, SolidWorks).
Familiarity with SolidWorks.
Ability to create clear instructions, documentation, or process guides.

Why This Role Works for Part‑Time Talent:

Flexible hours
Great fit for someone wanting to stay in the field without a full‑time schedule.
Opportunity to contribute meaningfully to real projects and support a high‑performing team.

If you’re curious, interested, or think you might be a fit — reach out. Let’s talk about what you bring and how it could work here.

Additional Skills / Attributes:

Ability to prioritize and manage multiple projects effectively.
Strong attention to detail and accountability.
Ability to work independently in a part-time capacity.
Strong communication skills across teams.
Proven problem-solving ability.
Solid mathematical aptitude.
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