IAT Programme Manager in London

Company Description

Publicis Groupe is one of the world’s largest communications holding companies, present in over 110 countries and employing about 100,000 professionals. The Groupe is positioned at every step of the value chain, from consulting to execution, combining marketing transformation and digital business transformation.

Overview

Mars Inc is one of the world’s largest privately owned consumer businesses, with Petcare at the heart of its growth agenda. In 2025, Publicis Groupe won Mars’ landmark global media account (c. US$1.7bn), creating the One Mars operating model and positioning the Mars account as one of the most strategically important, high-profile accounts within Starcom’s global roster. Pet Nutrition is a core growth pillar within the Mars Petcare segment, responsible for offering some of the most loved brands (think Dreamies, IAMS, Whiskas, Pedigree, Cesar and Sheba) to both cat and dog Pet Parents. The Pet Nutrition GLOBAL team is an integrated agency team (IAT) set up to deliver data-driven, audience-led brand and communications campaigns underpinned by media, influencer, ecommerce and content best practice. The One Mars ambition is to consistently drive effectiveness, agility, and scalable excellence. Join the One Mars team and help shape how a global network of specialists across Media, Social & Influencer, Measurement, Commerce, Data and Technology collaborate to deliver world-class marketing for one of the world's most iconic consumer brands.

Why this role?

This is far more than a traditional project management position. As the IAT Programme Manager, you'll sit at the heart of a global, multi-market ecosystem, connecting teams, streamlining delivery, and ensuring ambitious projects move from strategy to execution with clarity and confidence. You'll work closely with senior agency leaders and client stakeholders, helping to build scalable ways of working that enable teams across dozens of markets to perform at their best. Every day you'll influence major decisions, drive operational excellence, and create the frameworks that turn complexity into seamless delivery.

Responsibilities

Drive Programme Excellence

• You'll lead programme governance across multiple workstreams, ensuring every project has clear milestones, ownership, risk management and delivery accountability.
• Build and maintain programme roadmaps across regional, global and local teams.
• Own status reporting, governance forums and decision-making processes.
• Manage risks, issues, assumptions and dependencies (RAID).
• Keep complex initiatives moving forward through proactive planning and problem-solving.

Connect Teams and Capabilities

• Success in this role comes from your ability to bring people together.
• You'll act as the central point of coordination across Media, Social & Influencer, Measurement, Shopper Marketing, Data, Technology & Tools.
• You'll create alignment across teams, clarify responsibilities, remove blockers, and ensure everyone is working towards shared goals.

Shape Better Ways of Working

• You'll have the opportunity to design and improve how teams operate.
• From creating new processes and templates to leading continuous improvement initiatives, you'll help build scalable, repeatable ways of working that enhance quality, speed and efficiency across the organisation.

Influence Senior Stakeholders

• You'll become a trusted advisor to agency leaders and client stakeholders alike.
• Whether facilitating workshops, leading steering committee meetings, or presenting programme updates, you'll play a key role in driving alignment and enabling confident decision-making.

Lead Through Insight and Data

• You'll own and optimise project management tools and reporting frameworks, providing stakeholders with clear visibility of delivery progress, risks, milestones and performance.

Qualifications

WHAT YOU NEED TO SUCCEED

• We're interested in people who are naturally curious, highly organised and confident operating in fast-paced environments.
• Previous experience in programme or project management.
• Experience delivering complex, multi-stakeholder, multi-market initiatives.
• Strong knowledge of governance frameworks, programme delivery and operational excellence.
• Expertise with tools such as Monday.com, Asana, Jira, Smartsheet, Miro or similar platforms.
• Exceptional stakeholder management and communication skills.
• Experience working with senior leadership teams.
• The ability to navigate ambiguity and solve problems proactively.
• A track record of delivering high-value projects (€1m+).
• Experience within global, matrixed organisations.

BONUS POINTS IF YOU HAVE

• Experience within media, marketing, agency or production environments.
• Exposure to transformation or operating model programmes.
• Knowledge of marketing measurement techniques such as MMM or experimentation.
• PRINCE2, PMP, Agile or related programme management qualifications.

Additional Information

Starcom offers a wide range of benefits to support our employees. Full details are shared when you join, but highlights include core benefits such as Pension, Life Assurance, and Private Medical cover, alongside enhanced policies like Reflection Days and Shared Parental Leave. You’ll also have access to a range of additional initiatives.

Publicis Groupe works primarily from the office or our clients' office four days per week. At Starcom, we are proud to be an equal opportunities employer. We welcome and encourage applications from people of all backgrounds, and do not discriminate on the basis of race, ethnicity, nationality, religion or belief, disability, age, citizenship, relationship status, sexual orientation, gender identity, or any other protected characteristic. We are committed to providing a fair, accessible, and inclusive recruitment process. If you have any access needs - for example, related to disability, neurodivergence, or a health condition - please let us know. We’ll work with you to ensure the process works for you. Sharing this information will never impact your application. Guided by our values, we listen with empathy, uplift each other, take responsibility, and embrace change - building a culture where everyone feels seen, respected, and genuinely included.