FrontendEngineer

ABOUT FLEX Flex was founded to solve a simple but costly problem: making it easy for health and wellness brands to accept HSA and FSA payments online. We're backed by First Round, Core VC, Rethink Capital power checkout for Equinox, Dermstore, Therabody, and Ultrahuman to name a few. For years, only giants like Amazon and Walmart could process these payments at checkout, leaving smaller merchants - and their customers - to deal with frustrating reimbursement paperwork. Our technology verifies product eligibility in real time, handles split payments for eligible and non-eligible items, and can even issue Letters of Medical Necessity during checkout. With $150 billion in annual HSA/FSA spending potential, we’re giving brands the tools to unlock new revenue and making it easier for consumers to use the benefits they’ve earned.   ABOUT THE ROLE We’re looking for a Frontend Engineer to own developing our applications that merchants and consumers rely on everyday. You’ll work closely with backend engineers, design, and business stakeholders to ship seamless experiences that make HSA/FSA simple, accessible, and easy to use. This is a role for someone who thrives in ambiguity, takes initiative, and is excited about building at an early-stage company.   RESPONSIBILITIES (WHAT YOU’LL DO) - Lead frontend development using React across our multiple applications - Ship high-quality experiences with a bias towards execution - Partner with business stakeholders to ensure we’re addressing the needs of our merchants and consumers - Own and improve our frontend architecture while identifying and closing experience gaps across our applications - Collaborate on cross-functional projects that connect the full Flex experience, from consumer checkout to merchant analytics - Contribute to a culture of learning, problem-solving, and operational excellence QUALIFICATIONS (WHO YOU ARE) - You have 5+ years of experience in software development, with an emphasis on modern frontend technologies