9.2

/10

Transparency ranking

Job Description

Job Description:

As the Digital Core TCO (Total Cost of Ownership) Leader, you will be the FP&A Associate responsible for modeling and managing the end-to-end cost view of Mars’ global Digital Core transformation program. This role is pivotal in helping program and enterprise leadership make informed decisions by providing a comprehensive and dynamic view of the financial implications of design, scope, deployment, and operating model choices.

You will work cross-functionally with MGS and segment finance teams, DT teams, transformation leaders, and external partners to assess the TCO of each system within scope, and build forward-looking cost models that support scenario planning, trade-off analysis, and long-term investment strategy.

What are we looking for?

  • Bachelor’s degree in Finance, Accounting or related field (MBA or CPA a plus)
  • 5+ years of experience in FP&A, financial modeling, or investment analysis roles—ideally within a large transformation or technology program
  • Proven ability to build complex financial models that drive strategic decision-making
  • Experience with enterprise systems or technology-related costing (e.g., ERP, SaaS, infrastructure) preferred
  • Strong business acumen and ability to translate technical discussions into financial insights
  • Excellent communication skills with the ability to influence and collaborate across functions and levels
  • Detail-oriented with a proactive, solution-oriented mindset

What will be your key responsibilities?

  • Develop and maintain detailed Total Cost of Ownership models for all systems and components within the Digital Core program (including SAP S/4HANA and edge systems).
  • Support strategic decisions by modeling financial scenarios across different operating models, deployment timelines, and program choices.
  • Provide insight into run and maintain costs vs. transformation investments to help optimize resource allocation and long-term value delivery.
  • Support business case development and ongoing updates, aligning assumptions and inputs with evolving program scope.
  • Coordinate with segment finance and functional leads to gather input, align assumptions, and ensure coherence across cost models.
  • Communicate financial impact of options clearly to finance and non-finance stakeholders, enabling data-driven decision-making.
  • Ensure accuracy, transparency, and version control of TCO models to maintain a single source of truth.

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
Neo-natal 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
LinkedIn 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 (male:female)

57:43

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