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Senior Statistician

Job in London, Greater London, W1B, England, UK
Listing for: Optimizely
Full Time position
Listed on 2026-09-09
Job specializations:
  • IT/Tech
    Data Scientist, Data Analyst
Job Description & How to Apply Below
We're not here to add to the noise. We're here to cut through it- with AI that actually works for marketers.

From AI-powered content creation to world-class CMS and the industry's most trusted experimentation platform, Optimizely is the tool modern marketers actually want to use. AI-Ready. Set. Go.10,000+ brands including H&M, Pay Pal, and Zoom already get it. So do Gartner, Forrester, and IDC, who consistently recognize us as leaders in Mar Tech.

But here's the thing about building great products: it takes great people. Our 1,600+ Optimizers across 12 global offices are curious, collaborative, and refreshingly human. We don't do corporate speak. We do real conversations, big ideas, and genuinely care for the work we make together.

If you want to be part of a team that's shaping the future of marketing technology — and actually enjoys doing it — you're in the right place.

Find us on Instagram: @optimizely

Introduction

Rigorous statistical analysis is a core to all experimentation products  will get on customer calls to articulate how we maintain statistical accuracy in our products as well as triage questions around statistical inference. You will educate internal and external stakeholders about fundamental as well as cutting edge statistics concepts via webinars, speaking engagements, blog posts, and white papers.  You will also have the opportunity to work with our product and engineering teams to build new statistics/ML features for all of Optimizely’s products.  

You will have also have the opportunity to partner with experts in academia and research to explore and identify the latest trends and next great innovations that Optimizely should invest in.

Job Responsibilities Product and Feature Development Collaborate with product managers and engineering teams to design and implement new statistical and machine learning features across Optimizely’s product suite. Conduct rigorous testing and validation of new statistical methods and ensure seamless integration into the platform. Analyze product performance data to optimize existing features and provide actionable recommendations for improvement. Leverage AI agents to deploy new statistical capabilities.

Research and Innovation Partner with academic and industry researchers to explore cutting-edge statistical methods and machine learning innovations. Identify emerging trends in experimentation and statistics that could enhance Optimizely’s offerings. Propose and prototype advanced statistical techniques to solve challenging business problems faced by customers. Quality Assurance and Compliance Develop and enforce statistical standards and best practices for all experimentation processes.

Monitor and evaluate statistical algorithms to ensure accuracy, reliability, and scalability. Provide internal stakeholders with guidance on statistical compliance and methodologies to safeguard the credibility of experiment results. Education and Thought Leadership Develop and deliver educational content on statistics, including webinars, blog posts, white papers, and public speaking engagements. Simplify complex statistical concepts for both technical and non-technical audiences to promote understanding of experimentation best practices.

Represent Optimizely at conferences and industry events, showcasing expertise in experimental design and statistical analysis. Customer Engagement and Support Conduct customer calls to explain how statistical accuracy is maintained across Optimizely’s experimentation products. Triage and resolve customer inquiries related to statistical inference and experimentation methodologies. Assist customers in designing statistically valid experiments tailored to their needs and objectives. Cross-Functional Collaboration Partner with sales, customer success and onboarding teams to offer statistical expertise during customer onboarding and key engagements.

Serve as a statistical advocate within the organization, fostering a culture of rigorous data-driven decision-making. Collaborate with marketing teams to showcase Optimizely’s statistical capabilities in external communications. Knowledge and Experience3+ years of industry or educating…
Position Requirements
10+ Years work experience
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