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Mars UK • GBR-London-London | United Kingdom

Senior Global Media Operations Manager

Employment type:  Full time
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Job Description

Job Description:

Senior Global Media Operations Manager

Location: UK or US

As the Global Senior Media Operations Manager, you will drive commercial value, investment efficiency, and operational excellence for Mars Pet Nutrition's global media ecosystem. In this role, you’ll establish rigorous standards across media investment, ad-operations, reporting, and data taxonomy to maximize ROI across media channels. This is a highly analytical and operational role with a focus on governance; you’ll be responsible for translating operational data into high-impact strategic insights for global brands and local operating entities.

What are we looking for?

  • Significant experience in digital media planning, strategy and / or ad-operations

  • Deep expertise managing multi-million-dollar investment budgets including planning, channel allocation and reporting

  • Experience building, scaling or managing biddable media operations and / or search operations; hands-on ad platform experience a plus

  • Experience with both brand-building and performance marketing channels

  • Demonstrated ability to align stakeholders across functions and markets around a common process or way of working

  • Proven & demonstrable project management, change leadership, and problem-solving skills.

  • Excellent relationship builder to upskill, engage and inspire teams

  • BSC or Business Degree and / or equivalent media experience

What will be your key responsibilities?

Media Investment & Planning

  • Drive global media investment governance, scenario planning, and PESO framework implementation to maximize investment effectiveness, consumer relevance, and sustainable growth.

Ad Operations & Data Taxonomy

  • Establish, standardize and govern global ad operations excellence through standardized taxonomy, tracking, and data governance to enable accurate and consistent media performance reporting

Data, Technology & Measurement

  • Scale media measurement and ad-tech capabilities, embedding MMM insights into planning and decision-making while driving best-in-class standards.

  • Codify and deploy data and measurement best practices across markets, and enhance Search performance through dynamic bidding and keyword optimization.

Finance & Reporting

  • Partner with Finance to manage media budgets, governance, forecasting, and reporting processes.

  • Deliver global Search & Social performance reporting and support leadership investment reviews with ROI benchmarks and key insights

Commercial & Financial Acumen

  • This role requires high autonomy to design, build, and continuously refine reporting dashboards, operational workflows, and investment pipelines in a fast-paced environment.

What can you expect from Mars?

  • Work with over 140,000 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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#1 MOST FAMILY FRIENDLY COMPANY

Working at Mars UK

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
“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
Flex spring

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Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

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