Senior Experimentation Manager

Who We Are

VML, part of WPP, is a leading creative company that combines brand experience, customer experience, and commerce, creating connected brands to drive growth. VML is celebrated for its innovative and human first, award-winning work for blue chip client partners including AstraZeneca, Colgate-Palmolive, Dell, Ford, Microsoft, Nestlé, The Coca-Cola Company, and Wendy's. The agency is recognized by the Forrester Wave™ Reports, as a Leader among Marketing Creative and Content Service Providers, Commerce Services, Global Digital Experience Services, Global Marketing Services and, most recently, Marketing Measurement & Optimization. In addition, VML’s specialist health network, VML Health, is one of the world’s largest and most awarded health agencies. VML’s global network is powered by 26,000 talented people across 55+ markets, with principal offices in Kansas City, New York, Detroit, London, São Paulo, Shanghai, Singapore, and Sydney.

About WPP

WPP is the trusted growth partner for the world’s leading brands. We unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth. For more information, visit WPP.com.

We are seeking a highly organised and detail-oriented Senior Experimentation Manager to drive the hands-on delivery and execution of our client's experimentation-led growth initiatives. This role is responsible for the precise implementation of defined optimisation strategies, ensuring experiments are set up correctly, run efficiently, and deliver reliable data. You will operate with a high degree of granularity, directly executing within and contributing to the refinement of the experimentation framework established by the Experimentation Lead. Your primary focus will be on the flawless execution of experiments and the reliable delivery of results to ensure measurable business impact through a systematic, data-driven approach.

What you’ll be doing:

Execution of Global Experimentation Activities:

• Manage the day-to-day operations and execute the tactical direction for the client's global testing roadmap, ensuring experiments are launched and monitored effectively.

• Utilise your understanding of the client's business landscape and challenges to support the execution of high-impact, experimentation-based growth opportunities identified by the Experimentation Lead.

• Manage project timelines, dependencies, and resources specific to experimentation initiatives, ensuring the successful, on-schedule, and in-scope delivery of tests and learning agendas.

• Execute resource allocation for experiments, monitor testing throughput, and rigorously track the Return on Investment (ROI) of experimentation within established guidelines.

• Prepare and provide comprehensive performance reporting on experimentation outcomes and insights for the Experimentation Lead and relevant stakeholders.

• Maintain robust relationships with client stakeholders, focusing on clear communication regarding experimentation planning, execution status, and results across global regions.

Experimentation Implementation & Operations:

• Apply the principles of Experimentation-Led Growth (ELG) across the organisation through practical, hands-on application, fostering a mindset of continuous learning and data-driven execution.

• Execute within and contribute to the continuous refinement of the comprehensive ELG framework, methodologies, and best practices, as directed by the Experimentation Lead.

• Collaborate with cross-functional teams to meticulously design, configure, execute, and rigorously analyse experiments that drive key business metrics.

• Operate and contribute to scaling the infrastructure for continuous testing, learning, and iteration, focusing on efficiency and velocity of experiment delivery.

• Translate complex data insights derived directly from experiments into clear findings and actionable recommendations for the Experimentation Lead

Technical Delivery & Platform Execution:

• Execute the technical planning, configuration, and launch of all experimentation programs, leveraging in-depth knowledge of the underlying technology stack crucial for testing. This includes, but is not limited to, advanced experimentation platforms, comprehensive analytics suites (for measurement), and Customer Data Platforms (CDPs) (for audience segmentation).

• Implement and configure integrated solutions by understanding the capabilities, limitations, and interoperability of these experimentation-focused technologies, ensuring they are strategically deployed to maximise testing velocity, accuracy, and deliver against growth objectives.

What we want from you:

This role demands a unique blend of technical expertise, meticulous execution, and strong communication skills.

Deep Technical Expertise & Operational Acumen:

Knowledge of optimisation technologies, including the capabilities and limitations. This includes:

• Experimentation Platforms: (e.g., Adobe Target, Optimizely) - understanding advanced features, server-side vs. client-side testing, and statistical interpretation for setup and analysis.

• Analytics Suites: (e.g., Google Analytics 4, Adobe Analytics, Amplitude) - knowing how to implement advanced segmentation, custom reporting, and effective event tracking for experiment measurement.

• Content Management Systems (CMSs): (e.g., Adobe Experience Manager, Sitecore) - understanding how they support personalisation and content delivery for experiments.

• Customer Data Platforms (CDPs): (e.g., Segment, Tealium) - familiarity with data ingestion, unification, segmentation, and activation for targeting experiments.

• A strong understanding of data infrastructure and operations, particularly data pipelines, warehousing, and governance related to experimentation, to ensure data quality for experiments.

Flawless Execution & Program Management:

• Adept at managing and executing projects, meticulously planning, configuring, launching, and overseeing multiple, complex global initiatives, always ensuring on-time and in-scope delivery.

• Proficiency in agile or waterfall methodologies, resource allocation, dependency management, and risk mitigation specific to experimentation projects.

• Instrumental in implementing and contributing to the optimisation of efficient processes, creating and refining repeatable frameworks for experimentation setup, technical delivery, and reporting.

Data-Driven Acumen & Commercial Awareness:

• Embodies data-driven decision-making, leveraging insights derived from experiments to inform recommendations and measure impact. This includes strong analytical skills, statistical understanding for A/B testing, and the ability to interpret complex datasets from experiment results.

• Understands the commercial implications of your work, consistently tying technical delivery and experiment results back to measurable business value and tracking Return on Investment.

• Proficiency in ROI calculation and performance reporting.

• Excels at performance reporting and communicating complex results and insights clearly and compellingly to diverse audiences.

Exceptional Client & Stakeholder Partnership:

• Success in this role hinges on building and maintaining strong working relationships with key client stakeholders across all levels and global regions. You will be a trusted partner in execution, practicing active listening and expert expectation management around experiment delivery.

• Collaborates effectively across functions internally. You'll work seamlessly with product, engineering, marketing, and data science teams, ensuring smooth execution and fostering a truly collaborative environment.

Overall, we're seeking a highly organised, accountable, and results-driven individual with a strong systemic view, understanding how all the pieces fit together to ensure continuous, measurable impact through expertly executed experiments.

What we can offer you:

Alongside the opportunity to work with some of the most exciting brands around the world, we’ll also prioritise your career development and help you grow your skills. We’ll empower you to make a difference, allow you to be yourself, and respect who you are.

Permanent only:
We offer a great benefits package including a discretionary bonus scheme, training opportunities, competitive pension, medical insurance, life assurance, social events, opportunities to buy and sell holidays, family friendly policies, discounts with hundreds of retailers and much more.

Our culture thrives on our core values, designed for impact-driven individuals: Heart, Brains and Courage.

We lead with Heart, fostering empathy and trust where genuine connections and human-centric work flourish.
We empower your Brains for innovation, valuing relentless curiosity and collaborative intelligence to solve complex challenges.
And we champion Courage, inspiring you to speak up, embrace experimentation, and advocate for bold solutions that push our thinking to be better than yesterday.

AT VML Enterprise Solutions

Our Enterprise Solutions division houses strategic consultants, creative and technical architects and skilled developers and operators that together help some of the world’s leading organisations to deliver outstanding digital experiences across all major routes to market worldwide: marketplaces, online retailers, D2C, B2B and social platforms. With over 4,200 experts in 55 operational centres across 34 countries, our capabilities span the entire buying journey from customer acquisition, through engagement, to conversion and loyalty, driving multi-channel growth for world-leading brands.

We work with some of the most exciting brands such as The Coca-Cola Company, EY, Bosch, Unilever, Ford, DFS, Mercedes-Benz, Johnson & Johnson, Nestlé, Sainsbury’s, Selfridges, Shell and Tiffany & Co. We’ve built over 500 platforms for brands and retailers and generate in excess of $29bn annually for our clients and work with over 50 strategic partners including Adobe, SAP, Salesforce, HCL, Shopify, Sitecore, BigCommerce, commerce tools and Acquia. Our reputation is based on our people, and we believe we have some of the best in the business.

As our business grows internationally, we’re looking for new people to join us on our journey to inspire and take a key role in shaping some of the best commerce solutions, services, and websites in the world. Working as a team, no problem is insurmountable; we share in our client’s successes and believe that anyone can show creative bravery no matter what their role is in the team.

#LI-EMEA #LI-AS1

We believe the best work happens when we're together, fostering creativity, collaboration, and connection. That's why we’ve adopted a hybrid approach, with teams in the office an average of four days a week. If you require accommodations or flexibility, please discuss this with the hiring team during the interview process.

WPP (VML) is an equal opportunity employer and considers applicants for all positions without discrimination or regard to characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.

VML is a WPP agency (NYSE: WPP). For more information, please visit  www.vml.com, and follow along on Instagram, LinkedIn, and X.

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