Product Engineering Lead at Centaur (W19) $150K - $195K • 0.05% - 0.20% Quality-first data labeling for model evaluation and training Boston, MA, US / Remote (US) Full-time US citizen/visa only 6+ years About Centaur At Centaur, we label data at scale to enable breakthroughs in medical AI. Our novel approach uses collective intelligence to aggregate medical opinions from experts and students all over the world. Our labeling customers include leading AI companies and prominent research organizations. We're funded by SignalFire, Matrix, Accel, and Y Combinator. About the role Centaur is looking for a generalist product engineer to play a lead role in the development of our mobile app, DiagnosUs. DiagnosUs is a unique app where users compete to be the best at annotating datasets used by AI researchers to train and evaluate their models. Responsibilities: Writing and reviewing backend code, striking an appropriate balance between speed and maintainability. Reviewing iOS (Swift) and Android (Kotlin) code, ensuring that it does not just fulfill the product requirements but also meets our standards of quality code. Managing releases to the App Store and Google Play, including responding to rejections. Shepherding changes that require the mobile frontends, the backend, databases, and infrastructure to be in sync with each other. Contributing to design and product decisions, especially around feasibility and scalability. Collaborating with product managers to write and maintain specs, tickets, and documentation. Requirements: 5+ years in full-time product engineering roles, including team leadership experience. Experience shipping production code at a fast-changing startup. Experience submitting apps to the App Store or Google Play and handling rejections. A taste for quality and simplicity in code and design. Preferred: 10+ years in full-time product engineering roles, including team leadership experience. Experience writing iOS and Android frontend code. Experience with products that deal with payments and fraud. Experience with obscure file formats. Experience with non-standard security features such as SSL pinning and app attestation. Pay & benefits: The annual US base salary range for this role is $150,000 - $195,000. This salary range will be narrowed during the interview process based on a number of factors, including the candidate's experience, qualifications, and location. Additional benefits include: Equity grant in a Series B company Generous PTO and parental leave Work remote Yearly professional development stipend Technology We use React.js and Swift on the frontend, and Python and Swift (Vapor) on the backend. Our data store is PostgreSQL, and we're hosted on AWS. Centaur faces a wide variety of difficult technical problems, from efficiently serving millions of images and videos to our users, to ensuring our platform is secure and our valuable data sets remain private, to performing complex analysis on our users' performance and building machine learning models to take our decision making capabilities to the next level. Interview Process Our interview process: Phone screen Technical interviews Team interviews Offer