Factory Packaging and RM Planner

Mars; Castle Cary; On-site; GBP 39,000 - 44,000; Full time

Benefits offered by this job

Private healthcare

Pension (up to 9% contribution)

Life assurance (4x salary)

Gym membership & wellbeing support

Annual leave 24–32 days

On-site perks: parking, Lavazza coffee

Job summary

Mars at Castle Cary, Somerset is seeking a Planner in Supply Chain to ensure uninterrupted availability of Raw Materials and Packaging Materials for factory operations, balancing inventory, warehouse capacity and working capital.

You will coordinate replenishment, liaise with Commercial, Production Planning, Logistics and suppliers to secure production continuity, and apply inventory policies with a strong focus on Safety, Quality, and Food Safety standards.

Qualifications

• 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.

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, elevate 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.

Skills

Supply chain planning

Analytical skills

Stakeholder management

Job description

£39,300 - £44,300 DOE

Why Join Us?

We care about the world and your future.

Job Description

Castle Cary, Somerset

£39,300 - £44,300 DOE

+ Performance Bonus & Exceptional Benefits

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.

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

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.

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, elevate 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 "the world we want tomorrow"
• Access world-class training & development from day one
• Join a company with an industry-leading salary and benefits package