Yassine Zayet

I’m a Full-Stack Engineer focused on building scalable APIs and real-time platforms, backed by 4 years of experience delivering production-ready features end to end.

At Karriery, I developed a full-stack web application with Node.js, React, and MongoDB, translating Figma designs into responsive interfaces and cutting UI bug reports by 25%. I implemented JWT authentication and Socket.io real-time event handling, then strengthened reliability with automated Selenium testing achieving 90%+ coverage. The result was measurable growth, including a 38% increase in active users and revenue growth.

In a remote role with an online learning platform, I built RESTful APIs to serve 500+ concurrent users with under 200ms response time, and optimized a PostgreSQL schema to reduce query time by 40%. I maintained a WebSocket-based real-time tutoring platform with 99.9% uptime, prioritizing both performance and user experience.

I’m currently pursuing a Master’s in Software Engineering and remain passionate about distributed systems and developer tooling. I enjoy turning complex requirements into clean APIs, dependable backends, and polished front ends that scale with real user demand.