We are seeking an experienced Optimisation Principal to lead experimentation-led growth (ELG) initiatives for our key global clients. In this role, you will define and execute data-driven growth strategies, champion a culture of continuous testing and learning, and integrate modern tech stacks to deliver measurable ROI and long-term business impact.

What You’ll Be Doing

1. Strategy & Innovation

• Drive Growth Strategy: Define and deploy scalable Experimentation-Led Growth (ELG) frameworks, methodologies, and best practices tailored to client business objectives.
• Cultivate Testing Culture: Champion an evidence-driven mindset across client organisations, shifting teams from basic A/B testing to sophisticated, hypothesis-led experimentation.
• Insights to Action: Lead cross-functional teams in designing, executing, and analysing experiments, translating complex data into strategic growth initiatives.

2. Global Client & Stakeholder Partnership

• Strategic Ownership: Act as the principal advisor for all global optimisation activities, building trusted relationships with senior client stakeholders across diverse regions.
• Performance Storytelling: Deliver strategic forecasting, executive-level performance reporting, and actionable recommendations tied to core business KPIs.

3. Program & Commercial Management

• End-to-End Delivery: Oversee global program operations, managing resources, timelines, and budgets to ensure on-schedule, in-scope execution.
• Commercial Rigour: Maximise resource allocation, monitor program throughput, and rigorously measure ROI to justify financial investment.

4. Technical Solution Architecture

• Tech Stack Integration: Architect integrated technical solutions, ensuring seamless interoperability across experimentation platforms, analytics suites, CMSs, CDPs, and personalisation engines.
• Infrastructure Guidance: Oversee technical planning and delivery to ensure underlying data pipelines and tools effectively support client growth targets.

What We’re Looking For

• Visionary Leadership: Extensive experience leading global growth/optimisation strategies, driving organisational change, and managing multi-region client portfolios.
• Deep Technical Stack Expertise: Hands-on mastery and architectural understanding of:
• Experimentation: Adobe Target, Optimizely (client/server-side, statistical rigor).
• Analytics: GA4, Adobe Analytics, Amplitude (segmentation, event tracking).
• CDP & Personalisation: Segment, Tealium, Dynamic Yield, Braze (data unification, activation, real-time engines).
• CMS & Data Infra: AEM, Sitecore, data warehousing, governance, and pipelines.
• Data & Statistical Rigour: Advanced proficiency in statistical analysis for A/B testing, data synthesis, and translating metrics into business strategy.
• Flawless Program Execution: Demonstrated ability in Agile/Waterfall delivery, resource planning, risk management, and budget oversight for complex, global accounts.
• Cross-Functional Collaboration: Strong influencer capable of uniting product, engineering, marketing, and data science teams around shared growth goals.

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  WPP Enterprise Solutions

WPP Enterprise Solutions designs, builds, and operates the growth systems that competitive businesses rely on. In a world where Al is reshaping how companies drive growth, we lead clients in business transformation and marketing modernisation, connecting strategy directly to execution.  

Our 12,000 experts in engineering and platforms, commerce, consulting, content transformation, CRM, and CX, work within a unified global operating unit across 40+ markets. WPP Enterprise Solutions works alongside best-in-class partners including Adobe, AWS, Braze, Google, Microsoft, Salesforce, and Shopify, as well as innovators in AI, to deliver growth solutions tailored to the needs of our clients’ businesses. We have received distinction as a leader in Commerce Services and CX Strategy Consulting by the Forrester Wave™  

To find out more, visit enterprisesolutions.wpp.com and follow us on LinkedIn. 

WPP Enterprise Solutions is part of WPP, the trusted growth partner for the world's leading brands. Powered by exceptional talent and our agentic marketing platform WPP Open, WPP unites cutting-edge media intelligence and data solutions, creativity, production, enterprise solutions and expert strategic counsel.

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