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Mars

Factory Packaging and RM Planner

Location:Β  GBR-Somerset-Castle Cary | United Kingdom
Location flexibility:Β  1 office day / week, 2 office days / week, 3 office days / week, 4 office days / week
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Job Description

Job Description:

πŸ“ Castle Cary, Somerset
πŸ’· Β£39,300 - Β£44,300 DOE
🎁 + Performance Bonus & Exceptional Benefits

πŸ•’ 37.5 Hrs per week – Mon – Fri

🌟 Why Join Us?

We care about the world and your future. Mars offers competitive compensation and benefits along with some great perks, like fun freebies and best-in-class development. As a Mars Associate, you have our ongoing commitment to your growth and development as you work across our world-famous brands. The world we want tomorrow starts with how we do business today, and we're here to support you every step of the way.

πŸ’Ό The Role

The Planner is responsible for ensuring uninterrupted availability of Raw Materials and Packaging Materials to support factory operations while balancing inventory, warehouse capacity, and working capital objectives.

The role manages material replenishment, supplier coordination, and inbound material flow by working closely with Commercial, Regional Planning, Production Planning, Logistics, suppliers, and logistics partners to secure production continuity.

The role acts as the key stakeholder for material planning parameters and inventory policies while ensuring compliance with Safety, Quality, and Food Safety standards

⭐ What’s in it for you?

  • Career growth opportunities with structured development & Mars University
  • Private healthcare + equal parental leave
  • Generous pension (up to 9% contribution)
  • Life assurance (4x salary)
  • Gym membership & wellbeing support
  • Annual leave starting at 24 days, rising to 32 with service
  • Free perks on site: parking, Lavazza coffee, tea, fruit twice a week, and access to our employee shop

βœ… What We’re Looking For

  • Experience in Supply Chain Planning, Material Planning, Logistics, Inventory Management, or a related function.
  • Strong analytical and problem-solving skills with the ability to identify and resolve operational challenges.
  • Effective communication and stakeholder management skills, with the ability to build collaborative working relationships.
  • High attention to detail and ability to manage multiple priorities in a fast-paced environment.
  • Team-oriented with a growth mindset, proactive approach, and strong sense of ownership.
  • Commitment to Safety, Quality, and Food Safety standards and best practices.

πŸ”§ Key Responsibilities

  • Develop and manage material replenishment plans to ensure timely material availability and support uninterrupted production.
  • Monitor material supply, inventory levels, and planning parameters, proactively identifying risks and implementing mitigation actions.
  • Manage inventory performance, including stock accuracy, excess and obsolete inventory, and continuous improvement initiatives.
  • Coordinate with suppliers, procurement, logistics, and warehouse teams to ensure efficient inbound material flow and issue resolution.
  • Track inbound shipments, escalate supply, quality, or logistics risks, and drive corrective actions to minimise operational impact.
  • Support compliance, traceability, customs processes, and operational readiness while acting as a key planning contact within the factory.

🌍 What You Can Expect from Mars

  • Work alongside 130,000+ Associates worldwide guided by our Five Principles
  • Be part of a purpose-driven company shaping β€œthe world we want tomorrow”
  • Access world-class training & development from day one
  • Join a company with an industry-leading salary and benefits package
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Working at Mars

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
β€œPawternity” 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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Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

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