Senior Manufacturing Engineer

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."> Senior Manufacturing Engineer-Senneca Holdings-Mankato, MN

Senior Manufacturing Engineer

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.

Mankato, MN

Senneca Holdings

Senneca Holdings is a diversified management and holding company whose companies are focused on the specialty door industry. Senneca oversees the operations of its companies, allocates resources among them, and helps to improve the performance of its operations. Senneca seeks out acquisition opportunities that strengthen our position in a business segment as well as companies that will diversify our portfolio of specialty doors.

Note: You will always speak directly with a Senneca team member before receiving any offer of employment. Senneca will never extend a job offer without a formal interview process.

https://senneca.com/

keywords: position summary,benefits,leadership,operations,education,experience,knowledge,skills

Full Time

Overview: 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.

Application note: To help us prioritize candidates who are aligned with the on-site nature of this role, please include a brief statement in your application confirming your ability to work on-site in Mankato, Minnesota (or your relocation plan and timing).

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.

Benefits

• 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

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Responsibilities:

• 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

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Requirements:

• 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

Preferred Qualifications

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

Tools & Equipment

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

Work Environment & Physical Requirements

• 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

Expected Behaviors

• 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

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