Frontend Engineer

About Keystone AI At Keystone AI , we connect exceptional talent with top opportunities at leading companies across the UK, US, Canada, Europe, and Australia. Our clients include fast-growing startups, SaaS platforms, and digital-first businesses. Unlike traditional outsourcing models, you are placed directly with a client as an in-house team member, contributing to impactful, real-world products. Role Type: Full-time Engagement: Independent Contractor Job Summary We are hiring a Front-End Engineer to build and maintain intuitive, high-performance user interfaces for a rapidly scaling web application. This is a remote front-end developer job ideal for someone who thrives in a product-driven environment and enjoys translating design concepts into responsive, pixel-perfect experiences. You will collaborate closely with designers, backend engineers, and product teams to deliver exceptional UI/UX while ensuring performance, scalability, and maintainability. Key Responsibilities Develop and maintain responsive, high-quality user interfaces using React.js and modern JavaScript (ES6+) Translate UI/UX designs into clean, scalable, and reusable code Optimize applications for maximum speed, performance, and cross-browser compatibility Collaborate with product managers, designers, and backend engineers to deliver new features Write clean, maintainable, and well-documented code following best practices Integrate APIs and work closely with backend services Participate in code reviews and contribute to improving development processes Requirements 5+ years of experience in front-end development Strong proficiency in JavaScript, HTML5, and CSS3 Hands-on experience with React.js (or similar frameworks like Vue or Angular) Experience with state management tools (e.g., Redux, Zustand, or Context API) Familiarity with RESTful APIs and asynchronous programming Solid understanding of responsive design and cross-browser compatibility Experience with version control systems (e.g., Git) Strong attention to detail and a passion for building exceptional user experiences Experience with TypeScript Familiarity with Next.js or server-side rendering frameworks Experience with modern styling tools (e.g., Tailwind CSS, Styled Components) Understanding of testing frameworks (Jest, Cypress) Exposure to performance optimization and accessibility standards Benefits 💰 Competitive salary based on experience and seniority 🌎 Fully remote role with flexible working hours 🚀 Work on impactful, user-facing products with a global reach 📈 Clear career progression in a high-growth tech environment 🎯 Collaborative, product-driven culture with strong engineering standards 🤝 Direct placement with the client—no outsourcing layers Originally posted on Himalayas