Senior Manufacturing Engineer

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.

Our Senior Manufacturing Engineer leads continuous improvement initiatives using Lean methodologies in a fast-paced manufacturing environment. This is a fully on-site role based in southern Minnesota and requires daily, in-person collaboration with production teams.

If you’re looking for an opportunity to make a real impact, help set the standard, and reflect the core values of an organization, we invite you to join One Team Senneca Holdings.

• Medical, dental, and vision coverage
• 401(k) with company match
• 3 weeks PTO
• 9 paid holidays (2026)
• Career development and tuition assistance
• Diverse, inclusive, and welcoming culture

• Uphold and promote Senneca’s Mission and Values while ensuring compliance with all safety policies and procedures
• Lead selected projects including research, justification, implementation, startup, training, and achieving target conditions
• Support manufacturing operations in meeting customer demand and production goals
• Oversee the creation, correction, and interpretation of drawings, BOMs, routings, and system transactions
• Provide direct supervision to maintenance associates and mentorship to Manufacturing Engineers
• Drive make‑vs.‑buy decisions to optimize cost and efficiency
• Lead or support capital projects, product line transfers, lean initiatives, and robotic welding improvements
• Collaborate cross‑functionally with Production, Quality, Engineering, and Sales teams
• Promote a positive culture, safe work environment, and respectful workplace

• Bachelor’s degree in Manufacturing, Mechanical, or Production Engineering (or equivalent experience)
• Minimum 5 years of engineering experience in a manufacturing environment
• Experience with 3D drawings, process improvement, and capital projects
• Strong knowledge of automation and manufacturing systems
• Proven problem‑solving skills including root cause analysis and corrective actions
• Strong collaboration and communication skills
• Proficiency in Microsoft Office

• Experience with lean manufacturing principles (5S, waste reduction, flow optimization)
• Proficiency in CAD/Solid Works for 2D and 3D design
• Knowledge of ISO and AWS standards
• Experience working with ERP systems

• Proficiency with ERP systems, CAD/Solid Works, and maintenance software
• Familiarity with manufacturing machinery, equipment, and measurement tools

• Work performed on the production floor with exposure to noise, temperature changes, and mechanical equipment
• Required use of PPE including safety glasses, safety shoes, and hearing protection
• Ability to sit, stand, and walk for extended periods
• Ability to lift, push, or pull up to 50 lbs

• All employees are expected to embody Senneca’s Mission and Values:
• Doorway to Success – Exceed customer expectations
• I Am They – Take ownership of problems and solutions
• Feel the Learn – Develop oneself and others
• Speak Up and Listen – Communicate openly to drive positive change