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Mars UK • USA-Illinois-Chicago | United States of America

Sr. Manager, External Manufacturing (2 Roles- Co-Man and Co-Pack)

Employment type:  Full time
Salary:  $134,400 – $184,800 per annum
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Job Description

Job Description:

Sr. Manager, External Manufacturing (2 Roles- Co-Man and Co-Pack)

The External Manufacturing Manager (EMM) roles provide leadership representing Mars interests with multiple 3rd party co-manufacturing and co-packaging suppliers, managing the relationships based on agreed contractual terms and conditions, and ensure compliance to all regulatory and quality standards. The EMM will act as direct liaison between Mars and the external 3rd party sites, ensuring quality products are safely manufactured in sanitary conditions and at competitive costs.

The EMM is responsible for the management of external manufacturing start-up, execution of new product launch, inventory and materials management, productivity improvements and supplier performance.

What are we looking for?

  • Bachelor's degree in supply chain management, engineering, basic science, manufacturing, or related disciplines.

  • Minimum of 8 years of supply chain, commercial, logistics, manufacturing, planning or related business function with managerial experience.

  • Demonstrated knowledge of supply chain process, with emphasis on production planning, quality, and manufacturing operations.

  • Working knowledge of Food and Drug Laws, OSHA requirements, contract management, etc. Understanding of Mars Operating Policies preferred.

  • Must have a broad understanding of the major functions across supply chain and the ability to work directly with individuals at all levels and functions.

  • Must possess an understanding of lean manufacturing techniques and philosophies.

What would your key responsibilities be?

External Supply Network Capability: Collaborate with a wide network of suppliers and manufacturing technologies and bring a basic understanding of segment technologies and the external suppliers who operate in the space.

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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
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Flexa
Supply Chain Management: Partner with cross-functional partners (Supply, R&D, Activity Management, Supply Planning, S&F, and Commercial) to address capacity constraints and efficiencies, optimize conversion costs, support quality improvements, and deliver growth projects with our co-manufacturing suppliers.

Manufacturing Conversion: Manage the manufacturing of products across multiple co-manufacturing and co-packaging suppliers. Indirectly manage Supply Chain Analysts in the overall operation of the external manufacturing supply chain network (materials management, inbound, production reporting, outbound). Responsibilities include raws and packs management, material planning, production scheduling, ensuring adherence to production plans, coordinating responses to customer demand fluctuations while delivering quality, safety and cost targets. Responsible for coordinating cycle counts and physical inventory counts at each ex-man site and for PO creation for materials and equipment to be determined as expense. Manage the relationship with co-manufacturers based on agreed upon terms and conditions and Scope of Work. Operational lead on discussions for new product execution, continuous improvement opportunities, and compliance requirements (i.e. Quality).

Food Safety and Product Quality: Ensure the continuous production of safe and defect-free products consistent with the Mars Principles. HACCP and Food Safety proficiency is required, as this role is responsible for enforcing compliance to the Q&FS standards and requirements, working directly with External Manufacturing Quality Teams.

Goal Setting and Measurement: Establish vendor performance standards, goals, and metrics aligned with the External Manufacturing strategy, and will lead supplier performance business reviews. Participate in the development of budgets and KPI targets and provide business updates through S&OP and other weekly operations meetings.

Strategy Development: Participate with the leadership and other functional leaders in the development and implementation of short- and long-term continuous improvement strategies that will drive a more effective and efficient external network performance.

Communications: Interact with other functional areas to expedite, coordinate, communicate, and facilitate project management, while providing leadership to assure smooth project implementation, and will act to escalate issues to an appropriate level to ensure business objectives are met.

What can you expect from Mars?

Work with diverse and talented Associates, all guided by the Five Principles.

Join a purpose driven company, where we’re striving to build the world we want tomorrow, today.

A strong focus on learning and development support from day one, including access to our in-house Mars University.

An industry competitive salary and benefits package, including company bonus.

The base pay range for this position at commencement of employment is between the range listed below, however, base pay offered may vary depending on multiple individualized factors, including but not limited to job-related knowledge, skills, and experience. The total compensation package for this position will include variable pay, medical and dental benefits, participation in 401k plan, and paid time off benefits. Details of participation in these benefit plans will be provided if an applicant receives an offer of employment.

The pay range shown is applicable to all US locations listed within the job posting:USD 134,400.00 - USD 184,800.00

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Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

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