Manufacturing Optimization Engineer III

M&M Manufacturing

As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway— you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing you with diverse learning and working opportunities, and fostering a culture where everyone’s empowered to be their best.

Manufacturing Optimization Engineer III

Who We Are

M&M Manufacturing, a Marmon Holdings company that is part of Berkshire Hathaway, is one of the nation’s largest producers of sheet metal products for the air distribution and ventilation market. We manufacture a broad range of HVAC ductwork, fittings, and accessories for residential and commercial construction, with a strong commitment to safety, quality, continuous improvement, and customer success.

As part of Marmon Holdings, Inc., a Berkshire Hathaway company, M&M Manufacturing combines the close-knit partnership of a smaller business with the resources and connectivity of a global organization. Here, people are encouraged to do work that matters, lead at every level, and win a better way through collaboration, continuous improvement, and meaningful results.

What You’ll Do

As a Manufacturing Optimization Engineer III, you will help M&M improve manufacturing performance by turning observations, data, and operational needs into practical, sustainable solutions. You will work closely with plant leaders, frontline teams, engineering, maintenance, and the group automation team to strengthen processes, support change, and identify where technology can create measurable value.

• •Participate in Gemba walks and evaluate manufacturing operations to identify process gaps, waste, and improvement opportunities.
• •Map and improve end-to-end value streams to increase throughput, strengthen material flow, reduce waste, and improve process consistency.
• •Lead Lean initiatives, Kaizen events, standard work development, root cause analysis, and other continuous improvement activities.
• •Partner with plant managers and operational leaders to build alignment, support change adoption, and sustain improvements over time.
• •Evaluate facility layouts, equipment utilization, tooling, work methods, and production processes to recommend practical improvements.
• •Identify and scope automation opportunities based on validated operational needs, then collaborate with automation and technical resources through implementation.
• •Translate data, observations, and stakeholder feedback into prioritized improvement roadmaps with clear goals, owners, and measurable outcomes.
• •Use performance data and manufacturing metrics to guide decisions, track results, and communicate progress.
• •Present findings, recommendations, implementation plans, and business impacts to plant and senior leadership.
• •Contribute to the EZ Filter baseline project during the first 90 days, helping establish achievable goals, optimize the line layout, and prepare the process for future automation.

What You’ll Need

• •Bachelor’s degree in Industrial, Manufacturing, Mechanical, Systems Engineering, or a related field.
• •Five or more years of experience in manufacturing engineering, process improvement, continuous improvement, manufacturing operations, or manufacturing transformation.
• •Strong knowledge of Lean manufacturing, value stream mapping, standard work, root cause analysis, and waste reduction methods.
• •Demonstrated experience implementing process improvements and helping teams adopt operational changes.
• •Project management experience with the ability to independently manage priorities and drive work through completion.
• •Experience supporting automation-related initiatives by defining process requirements, validating benefits, or coordinating with technical resources.
• •Working knowledge of AutoCAD and intermediate Microsoft Excel skills, including data analysis.
• •Strong analytical, problem-solving, facilitation, communication, and interpersonal skills.
• •Ability to influence and build trust across operations, engineering, maintenance, quality, and leadership teams.
• •Ability to work onsite in Fort Worth, spend significant time on the manufacturing floor, and travel approximately 10% to 15% between company locations, vendors, and occasional trade shows.

What Wil Set You Apart

• •Experience in automotive, sheet metal, metals, HVAC, or a similar industrial manufacturing environment.
• •Six Sigma Green Belt, Black Belt, Lean certification, or equivalent continuous improvement experience.
• •Experience facilitating Kaizen events, change management activities, or cross-functional improvement workshops.
• •Exposure to automation, robotics, Industry 4.0, or digital manufacturing tools.
• •Experience with SolidWorks, Power BI, digital factory modeling, simulation tools, or data visualization.
• •Experience translating operational needs into clear process requirements for engineering, automation, maintenance, or IT partners.
• •Practical experience with preventative maintenance programs.

What You’ll Gain

You will join a team where your contributions can make a visible difference. In addition, eligible employees may receive:

• •Competitive compensation aligned with the role, experience, and location.
• •Medical, dental, prescription, and vision coverage.
• •A 401(k) plan with company match.
• •Opportunities to learn, build new skills, and contribute to meaningful business results.
• •Meaningful work with a direct impact on production efficiency, process consistency, safety, quality, and operating performance.
• •The ownership to identify opportunities, recommend solutions, and help shape how improvements and automation are implemented.
• •The opportunity to lead change alongside M&M plant managers and influence outcomes across multiple functions.
• •Exposure to advanced manufacturing, automation, and practical operational technology strategies.
• •Visibility with senior leadership and collaboration with engineering resources across the Marmon Plumbing & Refrigeration Group.
• •Career development within a global organization that values initiative, continuous improvement, integrity, and results.

Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law .

We are an equal opportunity employer, and all applicants will be considered for employment without attention to their membership in any protected class. If you require any reasonable accommodation to complete your application or any part of the recruiting process, please email your request to careers@marmon.com, and please be sure to include the title and the location of the position for which you are applying.