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Mars

Master Data Controller and Key User

Salary:  £39,500 – £49,500 per annum
Location:  GBR-Somerset-Castle Cary | DEU-Baveria-Buchloe | GBR-London-London | ITA-Milan-Milan | POL-Malopolskie-Niepolomice | NLD-North Brabant-Veghel | FRA-Nord-Les Rues des Vignes | DEU-North Rhine-Westphalia-Cologne | DEU-North Rhine-Westphalia-Frechen | DNK-Capital-Copenhagen | FRA-Gard-Aimargues | GBR-Leicestershire-Waltham | ESP-Barcelona-Barcelona | ESP-Madrid-Madrid | United Kingdom
Location flexibility:  1 office day / week, 2 office days / week, 3 office days / week, 4 office days / week
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Job Description

Job Description:

Master Data Controller & Key User

📍 UK - Castle Cary - Hybrid working

📍 Europe (France, Germany, Netherlands, Belgium, Poland, Spain, Italy)

💷 UK £ 39.500 - £ 49.500 Dependent on experience
🎁 + Performance Bonus & Exceptional Benefits

🕒 37.5 Hrs per week – Mon – Fri

📝 Fixed Term Contract – 12 Months

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

Royal Canin is embarking on a major business transformation programme, introducing new technology, standardised processes, enhanced data and analytics, and dedicated change management to support future growth.

As part of the first implementation wave in 2027, the European Key Accounts (EKA) team is seeking a Master Data Controller & ERP Key User to provide critical operational support during the transition.

This role combines responsibility for maintaining accurate end-to-end master data across major European customers with acting as the key user for the Microsoft Dynamics Navision ERP system. Working with pan-European stakeholders in a fast-paced, entrepreneurial environment, you will support daily operations, drive system improvements, lead technical projects, and play a key role in ensuring business continuity throughout the transformation journey.

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⭐ 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

✅ What We’re Looking For

  • Experience in a Supply Chain, Logistics, Master Data, or Operations role, ideally within an FMCG environment.

  • Hands-on experience working with ERP systems, preferably as a Key User or Super User (Navision, SAP, Oracle, or similar).

  • Strong understanding of master data management, including product data, GTINs, GS1 standards, and data governance principles.

  • Knowledge of EDI processes and system integrations, with the ability to diagnose and resolve data and transaction issues.

  • Experience supporting system testing, upgrades, and User Acceptance Testing (UAT) activities.

  • Advanced Microsoft Excel skills, with strong analytical capabilities and excellent attention to detail.

  • Fluent English (written and verbal) is essential; French language skills would be advantageous.

Key Responsibilities

  • Maintain accurate and aligned master data across customer and internal systems, ensuring uninterrupted order processing and supply chain operations.

  • Collaborate with key European customers to manage product catalogues, pricing, logistics parameters, and promotional data.

  • Lead master data activities for new product launches, product changes, and lifecycle management to ensure seamless market introduction.

  • Act as the Navision ERP Key User, providing first-line support, troubleshooting system issues, and driving continuous system improvement.

  • Manage EDI integrations and system interfaces, resolving data transmission issues and ensuring effective communication with customers and partners.

  • Coordinate system testing, upgrades, and enhancement projects while representing the business within the European ERP Key User community.

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

Working at Mars

Hybrid

Core hours 11–3

Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

Hiring in countries

Argentina

Australia

Austria

Belgium

Brazil

Canada

China

Czechia

Egypt

Estonia

France

Germany

Guatemala

Hungary

India

Japan

Office Locations

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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