Staff Software Engineer - Experimentation Platform

About Taskrabbit: Taskrabbit is a marketplace platform that conveniently connects people with Taskers to handle everyday home to-do’s, such as furniture assembly, handyman work, moving help, and much more. At Taskrabbit, we want to transform lives one task at a time. As a company we celebrate innovation, inclusion and hard work. Our culture is collaborative, pragmatic, and fast-paced. We’re looking for talented, entrepreneurially minded and data-driven people who also have a passion for helping people do what they love. Together with IKEA, we’re creating more opportunities for people to earn a consistent, meaningful income on their own terms by building lasting relationships with clients in communities around the world. Taskrabbit is a hybrid company with employees distributed across the US and EU and a Built In — Best Places to Work (2022, 2023, 2024, 2025) continually ranked across multiple national and regional categories. Join us at Taskrabbit, where your work will be meaningful, your ideas valued, and your potential unleashed! Prior to applying please note: • This role is hybrid requiring 2 days in office at our San Francisco hub every Tuesday & Wednesday (located at 130 Sutter St, San Francisco, CA). About the Role: The Core Services team is focused on building out shared capabilities and services that impact all other teams at Taskrabbit, and those services are used on almost every portion of our platform. We serve as the foundation that enables our engineering organization to stay on track, move faster, and build scalable, high-impact features. In this role, one of the initial responsibilities will be to lead the integration of our experimentation platform, empowering our product and engineering teams to experiment, test hypotheses, and iterate quickly on new features. As a Staff Engineer, you will help lead a team that designs, builds, evolves, and maintains these foundational systems. Your technical decisions will have a direct and highly visible impact on engineering productivity, product velocity, and the overall experience of our marketplace! Join us in transforming lives, one task at a time. What You’ll Work On: • Lead the architecture, integration, and adoption of our company-wide experimentation platform to enable rapid iteration and feature testing across teams • Design, build, and maintain robust, high-performance TypeScript-based APIs and foundational services • Work closely with Ruby on Rails backend services and integrate shared capabilities into existing application infrastructure • Propose and drive improvements to platform performance, reliability, and developer experience • Guide and mentor other engineers on best practices for feature experimentation, API design, and scalable architecture • Partner with Engineering and Product leadership to establish a unified data-driven experimentation strategy across Taskrabbit • Advise senior leadership on platform capabilities, experimentation architecture, and future strategic initiatives Your core skills: • 8+ years of experience developing modern APIs • Hands-on experience with at least one major experimentation & feature flagging platform (e.g., Optimizely, Growthbook, Statsig, or similar) • Professional experience with AI led agentic software development (e.g. Claude Code, Codex, Cursor, etc) • Experience building and maintaining robust TypeScript-based APIs and services • Exceptionally strong technical design and architecture skills with a focus on scalable shared capabilities • Experience with modern software development workflows, CI/CD pipelines, and containerized environments • Passion for mentoring engineers and elevating team capabilities • Strong written and verbal communication skills with the ability to articulate complex techn