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Mars UK • USA-Ohio-Lewisburg | United States of America

Operational Excellence (MSE) Manager

Employment type:  Full time
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Job Description

Job Description:

The Operational Excellence Manager—known internally as the Mars Supply Excellence (MSE) Manager—plays a key role in driving operational excellence, loss elimination, and sustainable performance improvement within a dedicated production area at our Royal Canin manufacturing site in Lewisburg, Ohio.

As a key member of the site operations team, you will support the implementation and execution of the Factory Mars Operating System and Run to Target practices. You will use performance data to identify losses, develop action plans, coach teams through structured problem-solving, and ensure operating standards are documented, followed, and continuously improved.

This hands-on, floor-focused role partners closely with Production Leaders, Area Coordinators, and frontline associates to improve equipment reliability, strengthen Daily Management Systems, and build associate capability. You will support Daily Direction Setting, improve the integrity of Line Event Data Systems, and drive sustainable improvements that reduce unplanned downtime, minimize planned interruptions, and improve safety, quality, efficiency, and reliability.

What are we looking for?

  • Bachelor’s degree in Engineering, Supply Chain, Business, or a related technical field
  • Three or more years of experience in manufacturing, operations, engineering, continuous improvement, or a related technical function
  • Lean Six Sigma Green Belt certification; Black Belt certification is preferred
  • Hands-on experience with Total Productive Maintenance, Autonomous Maintenance, Kaizen, SMED, and structured loss-elimination work
  • Experience leading and developing others, including providing coaching, performance feedback, direction, and accountability
  • Strong data-analysis, root-cause problem-solving, communication, and floor-level influencing skills
  • Experience with Daily Management Systems, Daily Direction Setting, CIL, centerlines, changeovers, anomaly handling, CMMS, or performance-reporting tools is preferred; experience in food, pet food, CPG, packaging, pharmaceutical, or another regulated manufacturing environment is a plus

What will be your key responsibilities?

  • Own and support the execution of Daily Management Systems within the assigned production area, including Changeover, Centerlines, Clean, Inspect and Lubricate, and Anomaly Handling
  • Lead Daily Area Value Stream connection-point meetings and support effective Daily Direction Setting
  • Analyze performance data, identify key losses, and integrate findings into the Factory Mars Operating System
  • Drive loss elimination through line-loss analysis, root-cause problem-solving, and the development of focused 90-day action plans
  • Lead Autonomous Maintenance process-improvement teams focused on reducing downtime, improving operating standards, and eliminating recurring losses
  • Support and coach Pillar activities within the Value Stream by developing analytics, standards, and improvement plans
  • Partner with Production Leaders to strengthen team performance, skills development, process discipline, and associate capability
  • Provide direction, coaching, development, and performance support to Area Coordinators
  • Improve the accuracy and integrity of Line Event Data Systems while ensuring critical operational standards are documented, followed, and sustained
  • Champion MSE Autonomous Maintenance deployment and support the achievement of Safety and Quality standards and objectives within the assigned area

What can you expect from Mars?

  • Work with talented associates in a collaborative and purpose-driven environment guided by the Five Principles of Mars
  • Make a visible impact on a world-class manufacturing operation
  • Access industry-leading learning and development opportunities through Mars University
  • Build your career within one of the world’s most recognized food and pet care companies
  • Receive competitive compensation, an annual incentive opportunity, and a comprehensive benefits package

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Working at Mars UK

Hybrid

Core hours 11–3

Company benefits

Open to part-time employees
Open to job sharing
Open to compressed hours
Sabbaticals
Enhanced maternity leave – 26 weeks at 90% pay
Enhanced paternity leave – 26 weeks at 90% pay
24 days annual leave + bank holidays
“Pawternity” leave
Pregnancy loss leave
Bank holiday swaps
Shared parental leave
Adoption leave
Family health insurance
Pregnancy support
Neonatal leave
Faith rooms
Meditation space
Dog friendly office
Dog friendly co-working space
Annual bonus
Employee discounts
Cinema discounts
Referral bonus
Joining bonus
Cycle to work scheme
Electric Car Salary Sacrifice
Enhanced pension match/contribution
Theme park discounts
Lunch and learns
In house training
Learning license
Studying sabbaticals
Open to part time work for some roles
Menopause support
On-site gym
On-site barista
Secure on-site parking
On-site catering
Private booths
On-site wellness room
Collaboration spaces

Awards & Accreditations

1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2026
3rd - Best Workplace Benefits

3rd - Best Workplace Benefits

Flexa awards 2026
Most loved - Large companies

Top 5 - Most loved - Large companies

Flexa awards 2026
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2026
1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2025
2nd – Pet Friendly

2nd – Pet Friendly

Flexa awards 2025
Most Flexible Company

Top 5 - Most Flexible Company

Flexa awards 2025
Most Inclusive Company

Top 5 - Most Inclusive Company

Flexa awards 2025
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2025
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2025
Best Workplace Culture

Best Workplace Culture

Flexa awards 2025
Best Workplace Benefits

Best Workplace Benefits

Flexa awards 2025
1st – Large companies

1st – Large companies

Flexa100 2024
Consumer Goods

Consumer Goods

Industry awards 2023
3rd – Large companies

3rd – Large companies

Flexa100 2023
Retail & Ecommerce

Retail & Ecommerce

Industry awards 2022
Flex spring

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Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

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