Senior Growth Engineer (Frontend or Backend)

About Faire Faire is an online wholesale marketplace built on the belief that the future is local — independent retailers around the globe are doing more revenue than Walmart and Amazon combined, but individually, they are small compared to these massive entities. At Faire, we're using the power of tech, data, and machine learning to connect this thriving community of entrepreneurs across the globe. Picture your favorite boutique in town — we help them discover the best products from around the world to sell in their stores. With the right tools and insights, we believe that we can level the playing field so that small businesses everywhere can compete with these big box and e-commerce giants. By supporting the growth of independent businesses, Faire is driving positive economic impact in local communities, globally. We’re looking for smart, resourceful and passionate people to join us as we power the shop local movement. If you believe in community, come join ours. About this role: At Faire we have a business unit focused on Retailer Growth that oversees core growth strategies from top of funnel, to onboarding, to helping Retailers get up and running to be successful on Faire. We are looking for a Senior Growth Engineer (Frontend or Backend) who thrives at the intersection of product, experimentation, and engineering. We are looking for someone who wants to own meaningful business outcomes and impact, not just ship features. Depending on your strengths, you may focus primarily on frontend or backend systems, but you will operate with end-to-end ownership of growth initiatives and measurable impact. You will partner closely with Product, Design, Data Science, Analytics, and Marketing to turn hypotheses into experiments, and experiments into scalable growth engines. What you’ll do: Own and deliver growth experiments end-to-end, from ideation to implementation and analysis. Build customer-facing features that improve funnel conversion, onboarding success, and engagement. Design and implement scalable APIs and services (backend focus) or intuitive, high-performance user interfaces (frontend focus). Partner with Data Science and Analytics to define success metrics and interpret experiment results. Contribute to experimentation frameworks and growth tooling infrastructure. Share ownership of product decisions and help shape growth strategy through technical insight. Write clean, secure, tested, and maintainable code that scales to millions of users. Help improve engineering quality, velocity, and operational efficiency within the Growth organization. We’re excited about you because you: Have 5+ years of professional software engineering experience. Have strong experience in either: Backend development (e.g., Kotlin, Java, C#, APIs, databases, distributed systems), or Frontend development (e.g., React, TypeScript/JavaScript, modern UI frameworks, performance optimization). Have shipped customer-facing features with measurable impact. Care deeply about experimentation, A/B testing, and data-informed decision making. Are comfortable working in fast-moving, hypothesis-driven environments. Take ownership and think beyond implementation, connecting technical decisions to business outcomes. Have a strong foundation in computer science fundamentals or equivalent industry experience. Are curious, resourceful, and excited to solve ambiguous problems. Bonus / Nice to haves: Experience working on growth, activation, onboarding, or monetization teams. Experience leading major growth initiatives or owning a growth surface area. Experience in marketplace, e-commerce, or B2B SaaS environments. Familiarity with experimentation platforms and feature flagging systems. Experience collaborating closely with Data Science or Analytics teams. Exposure to lifecycle marketing, CRM systems, or data pipeline integrations. Technologies we use teach: (Experience in similar technologies is welcomed) Backend: Kotlin, Java, JUn ... (truncated, view full listing at source)