Optimisation Principal

Vmlenterprisesolutions; Greater London; On-site; GBP 90,000 - 150,000; Full time

Job summary

WPP Enterprise Solutions is seeking an experienced Optimisation Principal to lead experimentation-led growth (ELG) initiatives for its global clients in London. You will define data-driven growth strategies and champion a culture of continuous testing and learning to deliver measurable ROI.

In this role you will align cross-functional teams, manage senior stakeholder relationships across regions, and oversee end-to-end program delivery, ensuring projects stay on time and within budget while

Qualifications

• Experience leading global ELG or growth initiatives across multiple regions.
• Ability to translate data into strategic growth actions.
• Proven track record of managing senior client stakeholders.

Responsibilities

• Define and deploy ELG frameworks and best practices tailored to client objectives.
• Champion an evidence-driven testing culture across client organisations.
• Lead cross-functional teams to design, run, and analyse experiments.
• Translate insights into strategic recommendations tied to core KPIs.

Skills

Growth strategy

Experimentation

Stakeholder management

Data analytics

Technical architecture

Tools

Adobe Target

Optimizely

GA4

Adobe Analytics

Amplitude

Segment

Tealium

Dynamic Yield

AEM

Sitecore

Job description

Who We Are

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 modernization, 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. VML, part of WPP, supports WPP Enterprise Solutions by helping brands activate transformation through creativity and experience.

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

• 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.
• 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.
• 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.
• 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.