Senior Frontend Developer

<p></p><p>This range is provided by Harnham. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. </p> <h3>Base pay range </h3> <p>$140,000.00/yr – $160,000.00/yr </p> <p>Direct message the job poster from Harnham </p> <h3>Recruitment Consultant | Data &amp; Software Engineering at Harnham </h3> <p><strong>Senior Frontend React Developer – AI Interface </strong> </p> <p><strong>Location: </strong> Hybrid (U.S.) </p> <p><strong>Compensation: </strong> $140,000 – $160,000 base + equity </p> <h3>About the Company </h3> <p>A rapidly growing AI and cloud technology company is building intelligent, emotionally aware user interfaces that power next-generation human–AI interaction. </p> <p>The company’s mission is to make artificial intelligence feel intuitive, transparent, and human-centered through thoughtful design and cutting‑edge real‑time technology. </p> <p>As part of its expansion, the engineering team is hiring a frontend leader to help shape how users experience and connect with AI through elegant, responsive, and real‑time web applications. </p> <h3>The Role </h3> <p>The Senior Frontend React Developer (AI Interface) will take ownership of building the web experience that defines how users engage with the company’s AI platform. </p> <p>You’ll architect and develop a fast, seamless, and beautiful interface that transforms complex real‑time data streams from AI models into a natural, conversational experience. </p> <p>This role blends technical excellence with design sensitivity — perfect for a frontend engineer who cares deeply about both performance and user emotion in digital interactions. </p> <h3>Key Responsibilities </h3> <ul> <li><strong>Architect &amp; Develop the Frontend: </strong> Lead the development of a modern <strong>React-based application </strong>, making architectural decisions to ensure scalability and maintainability. </li> <li><strong>Build Real-Time AI Experiences: </strong> Implement a live conversational interface integrating with backend services via <strong>WebSockets </strong> for streaming audio, transcriptions, and AI responses. </li> <li><strong>Manage Complex State: </strong> Leverage modern <strong>React Hooks </strong> and state management solutions to handle authentication, conversation history, and live AI session states. </li> <li><strong>Collaborate on UI/UX: </strong> Work closely with designers and product managers to translate wireframes and prototypes into pixel‑perfect, responsive, and emotionally intelligent interfaces. </li> <li><strong>Write High-Quality Code: </strong> Deliver clean, maintainable, and well‑documented code following modern testing and review practices. </li> </ul> <h3>About You </h3> <ul> <li>5+ years of professional frontend development experience with a strong focus on React. </li> <li>Strong understanding of React architecture and modern state management patterns. </li> <li>Proficient in RESTful API integration and asynchronous data handling. </li> <li>Familiarity with Microsoft Azure and cloud deployment workflows. </li> <li>Portfolio demonstrating ability to build clean, beautiful, and intuitive user interfaces. </li> <li>Genuine interest in AI, conversational interfaces, and human‑computer interaction. </li> <li>Bachelor’s degree in Computer Science or a related field, or equivalent hands‑on experience. </li> </ul> <h3>Bonus Points </h3> <ul> <li>Experience with TypeScript. </li> <li>Knowledge of frontend testing tools such as Jest or React Testing Library. </li> <li>Familiarity with UI animation libraries (e.g., Framer Motion). </li> <li>Exposure to avatar or animation‑based UI systems. </li> <li>Experience deploying apps to Azure Static Web Apps. </li> </ul> <h3>Why Join </h3> <ul> <li>Competitive compensation: $140K–160K base + equity </li> <li>Hybrid work flexibility across the U.S. </li> <li>Health, dental, and vision coverage </li> <li>Opportunity to shape the future of human–AI interaction through design and engineering </li> <li>A collaborative, product‑driven team building technology with emotional intelligence at its core </li> </ul> <h3>Seniority level </h3> <p>Mid‑Senior level </p> <h3>Employment type </h3> <p>Full‑time </p> <h3>Job function </h3> <p>Engineering and Information Technology </p> <h3>Industries </h3> <p>Software Development </p> <p>Referrals increase your chances of interviewing at Harnham by 2x </p> <p></p> #J-18808-Ljbffr