At MERGE, we are Built Different . We are a marketing and technology agency purpose-built for the intersection of health and wellness—where human impact matters most. By weaving storytelling through technology, we move beyond traditional engagement to Whole Human Marketing. This approach recognizes that humans are multidimensional and complex, and uses AI to ensure every brand interaction feels natural, contextual, and relevant.
This commitment to human-first innovation is what brings us together and propels us forward. We are united by our North Star: to unite people and brands to empower healthier, happier lives. Emerge to the Top of Your Career At MERGE, we strive to create a superior work experience where talented and ambitious people grow. An experience that encourages people to think higher and feel deeper. An experience where people engage their minds and hearts to do the best work of their careers.
As our Director, Experimentation, Decision Science, you will… Play a pivotal role on our consulting team, working directly with clients to design, manage, and scale high-impact experimentation and personalization programs. Serving as a trusted advisor across web, digital, and media channels, you will consult on scaling client experimentation programs and drive hands-on program execution. In this role, you will mature client testing capabilities, maximize ROI, and unlock deeper customer insights to drive business growth.
What You’ll Do Design comprehensive cross-channel experimentation roadmaps and learning agendas aligned with client business goals across web, app, and paid/owned media channels Formulate data-driven hypotheses, determine experiment feasibility, and define primary/secondary KPIs, target audiences, and statistical parameters (sample size, experiment duration, confidence intervals) Drive audience segmentation and personalization strategies to deliver tailored user experiences across key digital touchpoints Oversee and facilitate the complete experimentation workflow—from ideation, targeting setup, and variant build specs to post-launch quality assurance Collaborate closely with engineering, analytics, UX/UI, and media teams to validate tag implementation, audience integration, and parameter tracking prior to test launches.
Monitor live test health, audience distribution, and data integrity to troubleshoot mid-flight anomalies or tracking issues Evaluate multivariate, A/B, and personalization experiment results, translating complex outputs into compelling, executive-ready stories and strategic next steps Work with analysts to quantify conversion lift, financial impact, and projected annual ROI to clearly demonstrate program value to senior executives Act as a strategic consultant to assess client experimentation programs, benchmark maturity against industry standards, and deliver action plans to elevate client capabilities Advise client stakeholders throughout the experimentation lifecycle, establishing governance, standardized documentation, intake processes, and prioritization frameworks Advise and support clients throughout the experimentation execution process by sharing expert experimentation guidance and best practices with all client-side stakeholders Promote a continuous "test-and-learn" culture by facilitating cross-functional insights-sharing forums and training sessions Upskill client and internal agency teams on experimentation best practices, statistical literacy, and testing tool capabilities Cross-pollinate winning experiment concepts across different media formats, site sections, and client portfolios to maximize output efficiency What You’ll Bring Bachelor’s degree in Marketing, Business, Statistics, Psychology, Human Factors, or equivalent practical experience 5+ years of web, digital or media experimentation experience Direct experience running A/B, multivariate, and personalization experimentation programs across web, mobile, or digital media platforms Proven track record of managing externa