Staff Frontend Engineer

Join Keystone AI and help modernize the future of veterinary software and the pet parent healthcare experience. Our suite of platforms features a market-leading procurement marketplace, an ultra-modern home delivery ecommerce experience, and a next-generation practice management system. More than 25,000 hospitals across all 50 states rely on Keystone AI daily, supporting tens of thousands of veterinarians who care for tens of millions of pets each year. We are modernizing the 50 billion dollar plus animal health industry by giving veterinary organizations the tools to focus more on patient care. Backed by Y Combinator and top venture investors in Silicon Valley, New York and Miami, Keystone AI is a fast-growing, mission-driven company. We are searching for talented and passionate people who want to help shape the future of veterinary care. About the Position As a Staff Frontend Engineer, you’ll lead the architecture and evolution of the user facing experience across Keystone AI’s platforms. You’ll own critical frontend systems that power how tens of thousands of veterinary professionals and millions of pet parents interact with our products daily; from clinical workflows to patient care tools. This role goes beyond implementation. You’ll define frontend strategy, establish best practices, and shape how our applications scale in performance, usability, and maintainability. You’ll work closely with product, design, and backend teams to deliver seamless, high-quality user experiences at scale. About Our Team We’re a fast-moving team solving big challenges in a field that’s rapidly adopting technology. Our platform powers every aspect of veterinary clinic operations, from medical records to pet parent experiences. At Keystone AI, engineers work across the stack and have a holistic view of the platform. You’ll have the opportunity to work closely with users, influence the product roadmap, and make a real difference in an industry that impacts millions of animals and their caregivers. We operate in a fully remote environment, giving you the flexibility to do your best work while staying deeply connected to a fast-moving, highly collaborative team. What You’ll Do Lead the architecture, design, and delivery of large scale frontend applications across web and mobile Build and evolve high performance React and React Native applications Define and enforce frontend best practices, including performance optimization, accessibility, and maintainability Develop shared component libraries, design systems, and frontend infrastructure to improve team velocity Drive improvements in application performance, reliability, and user experience Partner closely with product managers, designers, and backend engineers to deliver cohesive, user centered features Mentor junior front end engineers Influence technical direction and frontend strategy across multiple product areas Debug and resolve complex frontend and cross stack issues What We’re Looking For 8+ years of software engineering experience, with a strong focus on frontend development Experience building Claude/Cursor skills to help streamline FE best practices Bachelor’s degree required, CS or technical degree preferred Deep expertise in JavaScript/TypeScript and modern frontend frameworks (especially React) Experience architecting and scaling complex frontend applications and systems Strong understanding of performance optimization, state management, and frontend architecture patterns Experience building and maintaining design systems or shared component libraries Familiarity with mobile development (React Native or similar) is a plus Solid understanding of APIs and backend interactions (REST, GraphQL, etc.) Proven ability to lead projects and mentor engineers Strong communication skills and a product-oriented mindset Comfortable operating in fast paced, evolving environments Tools We Use Backend: Python (Django, Django Rest Framework) Frontend: JavaScript (React, React-Query), TypeScript Datastores: Postgres, Elasticsearch, Redis, Clickhouse Mobile: React Native Version Control: Git Benefits (Full Time Roles) 100% remote within the USA Medical, Dental, and Vision Insurance Automatic 401k contribution Employee referral program At home office set up Bi-annual company retreats Open vacation policy Equity Monthly team events The typical base pay range for this role across the U.S. is: $170,000/year - $230,000/year + significant bonus + equity + benefits. There is a different range applicable to specific work locations. For Colorado, the salary range is: $190,000 - $220,000 + bonus + equity + benefits. This salary range is a good faith estimate of what Keystone AI may pay for this position at the time of posting. Actual compensation may vary based on skills, qualifications, and experience. The range reflects the base hourly rate or annual compensation (as applicable), and does not include bonus, equity or other incentives. In addition to base compensation, Keystone AI offers a comprehensive benefits package