Senior React Engineer

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.