Do you love the challenge of building efficient, high-performance applications? At Povio, we craft digital products that make a difference, collaborating with iconic names like Volkswagen, the founder of Reddit, Serena Williams, and Arnold Schwarzenegger. Our journey began at Y Combinator, and from the start, we've embraced the challenges of working with top startups, innovators, and emerging technologies. Today, that increasingly includes AI - both in the products we build and the way we build them. We're looking for a Senior React Engineer to join our team and help us create world-class solutions for our global clients. What You’ll Do: Develop robust, scalable React applications using modern tools and libraries such as TanStack Router, TanStack Query, and TypeScript. Use AI-assisted and agentic workflows to accelerate every stage of development - from technical planning and implementation to testing, documentation, and iteration. Ensure your applications are fast, smooth, and responsive by focusing on performance and quality. Collaborate with clients and internal teams to meet project goals and deliver on time. Explore and adopt new tools and technologies (especially in AI) to improve development speed and product quality. Recent Challenges We’ve Solved: Rendering 30,000 markers on a map simultaneously - without crashing the browser. Keeping the GUI smooth while updating maps with massive datasets. Developing a lazy-loading, infinite scroll image list optimized for underperforming mobile devices. Streaming an LLM's response token-by-token into the UI while keeping the interface responsive and interruptible. What We’re Looking For: 6+ years of web development experience, with at least 3 years in JavaScript frameworks like React. Expertise in Single Page Application (SPA) design patterns and front-end security, with familiarity in OWASP top 10. Deep understanding of front-end performance optimization - minimizing render times, smooth animations, and hitting 60fps. Hands-on experience with AI-powered developer tools (Cursor, Claude Code, Copilot…) and agentic approaches, paired with the engineering judgment needed to validate the outcome. Solid experience with HTML, CSS, and modern front-end technologies. Passion for keeping up-to-date with the latest web development trends. Strong communication skills and the ability to collaborate effectively with team members and clients. A team-first, humble attitude, where solving problems and helping others succeed is a priority. Why You’ll Love This Role: International Exposure: work with top U.S. and European companies, growing your skills in global markets. Top-Level Mentorship: get coaching from industry-leading engineers and advisors, helping you grow professionally. Talented Team: collaborate with a passionate, driven team of experts who support each other’s success. Direct Impact: your work will make a real difference on high-impact projects with forward-thinking clients. Modern Engineering Practices: be at the cutting edge of AI-assisted, agentic, and spec-driven development with the freedom to keep exploring as the industry evolves and ship more without dropping quality. If you’re ready to join a team that values quality, innovation, and collaboration, apply today! Questions? Reach out to Agrina at agrina.sadiku@povio.com and she'll be happy to help.