Remote Frontend Engineer

About FlexFlex 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 RoleWe’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 applicationsShip high-quality experiences with a bias towards executionPartner with business stakeholders to ensure we’re addressing the needs of our merchants and consumersOwn and improve our frontend architecture while identifying and closing experience gaps across our applicationsCollaborate on cross-functional projects that connect the full Flex experience, from consumer checkout to merchant analyticsContribute to a culture of learning, problem-solving, and operational excellenceQualifications (Who You Are)You have 5+ years of experience in software development, with an emphasis on modern frontend technologies and building delightful user interfacesYou have a strong understanding of modern web development best practicesYou’re resourceful, curious, and comfortable learning new tools quicklyYou thrive in fast-paced, dynamic environments and enjoy wearing multiple hatsYou’re collaborative and enjoy working across teams to solve problemsYou have an execution mindset and always keep the end user in mindYou're proficient at leveraging AI tools to ship faster Nice to HaveExperience with building frontend applications with ReactBackground in creating financial systems or tools leveraged by either merchants or consumers Why Join FlexA mission-driven team making healthcare spending effortlessEarly-stage impact - your work will directly shape our growth and successCollaborative, high-trust, and transparent cultureCompetitive compensation and equity packageFlexible, remote-friendly work environment