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Mars UK • GBR-Berkshire-Slough | POL-Mazowieckie-Sochaczew | United Kingdom

Global Rewards Process Owner (18-month Assignment)

Employment type:  Contract
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Job Description

Job Description:

Global Rewards Process Owner 18-month assignment / FTC, Mars Global Services

T3

In support of Kellanova integration into Workday, this role will be the Subject Matter Expert for designing necessary Rewards solutions to ensure a smooth and successful migration of the Kellanova Associates into Mars Workday. These solutions can include re-designing an existing process, influencing a policy change for easier deployment while aligning all critical stakeholders on the recommended solution.

What are we looking for?

  • Proven track record in project management, ideally within digital or transformation environments
  • Comprehensive process design and problem-solving skills, with the ability to turn ambiguity into clear, actionable solutions
  • Ability to influence and challenge stakeholders (including senior leaders) without formal authority
  • Experience working cross-functionally across business and technical teams in complex organisations
  • Excellent stakeholder management and communication skills, able to simplify complex topics and drive decisions
  • Digitally savvy, resilient, and adaptable, with a collaborative mindset, emotional intelligence, and a passion for continuous learning
  • Exposure to Rewards, P&O, or people processes is a plus

What will be your key responsibilities?

  • Work closely with the P&O Solutions WD Integration Lead, who is the subject matter expert on Workday, to identify the best technical solution that will ensure an efficient process and a great experience.
  • Act as the single point of contact with the Rewards CoE on all WD integration matters, build a strong partnership, gain and sustain the trust to support the CoE in making the decisions we need in service of the integration.
  • Identify workaround solutions when facing unexpected challenges and work closely with the P&O Solutions Lead and the deployment partner (external consultant) to identify the best way forward. Will often need to engage Rewards CoE and other senior stakeholders to get their buy in and support.
  • Stay on top of all change management impact resulting from the integration and ensure we have a plan to address each one of them.

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.
  • Best-in-class 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.
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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

Working at Mars UK

Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

Hiring in countries

Argentina

Australia

Austria

Belgium

Brazil

Bulgaria

Canada

China

Czechia

Denmark

Egypt

France

Germany

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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