Senior Data Scientist

About the role

Join Relay, a high-impact fintech company, as a Senior Data Scientist. In this role, you will elevate Relay's data capabilities, build predictive models, support experimentation, and help the business make smarter, faster decisions. You will work closely with various teams, translate complex business questions into actionable insights, and mentor junior data scientists. Enjoy competitive salary, equity, comprehensive health benefits, flexible vacation, and a hybrid work environment. Key missions: Elevate Relay's data capabilities by building predictive models and supporting experimentation across the organization.. Own predictive modeling work across critical business domains, including customer lifetime value (LTV), churn, retention, and early-signal customer quality assessment.. Partner closely with GTM, Sales, Finance, and Product to translate ambiguous business questions into well-framed analytical problems with measurable outcomes. Profile: - You're a clear, confident communicator who can bridge the gap between technical work and business decisions — written, verbal, and visual - You bring strong business instincts — you understand why a metric matters, not just how to compute it, and you're energized by solving real stakeholder problems - You thrive in ambiguous, fast-moving environments and have a track record of ramping quickly into new domains and delivering value within weeks, not months - You have hands-on experience building and deploying predictive models (e.g., LTV, churn, lead scoring) and can walk through your methodology and the business impact it drove - You have experience with A/B testing and experimentation, can design experiments from first principles, and can communicate results in a way that's digestible to non-technical audiences - You're deeply comfortable with SQL and Python, and can use them appropriately to run statistical analyses and solve complex problems - Familiarity with Snowflake and dbt is a strong plus; comfort working within a modern analytics stack is expected - You crave autonomy: We trust our team with big challenges and the freedom to solve them. If you’re someone who takes initiative, is comfortable taking risks, and seeks input when needed, you’ll find the freedom here empowering - You’re energized by complexity and ambiguity: You enjoy tackling problems that don’t come with a playbook. You’re comfortable building from scratch, iterating as you go, and collaborating to shape the best path forward - You care about impact, not noise: You care deeply about the substance of your work. You measure success by results, not recognition and you let your work speak for itself - You treat comfort as a red flag: You seek growth. When things feel too comfortable, you lean into change. You’re excited about stepping into the unknown and navigating new terrain to create something better alongside your team - You own your work: You take pride in your work, follow through on commitments, and feel a deep sense of responsibility for outcomes, not just tasks - You push relentlessly for reinvention: You’re built to constantly ask, “How can this be better?” Change excites you and you drive it - You seek out feedback: We value directness, clarity, and respect. We believe honesty fuels great work and career growth. You see feedback as a tool for learning and improvement, and you know that open, honest dialogue is key to achieving the best results — together - You’re here for more than a job: At Relay, everything we do is in service of our mission to help small businesses thrive. To drive impact and have purpose here, that mission must matter to you too - Research shows that women-identifying and other marginalized individuals often apply only if they meet 100% of the qualifications. But no one is a perfect match on paper. If this role excites you, we’d love to hear from you and figure out together if it’s a great fit