Gurleen Kour

I’m a frontend developer with 3 years of experience building scalable mobile and web applications with React and React Native. I focus on creating seamless UI experiences while driving performance optimization and reliable API integration.

In my recent work, I delivered React features through fast-paced Agile sprints, including an interactive video platform with swipe-based playback and branching logic. I also implemented next-video preloading and background buffering to reduce playback latency and improve video start time, and built a social media MVP with onboarding, contact sync, and push notifications.

I’ve contributed across the stack where it mattered—supporting backend services with Node.js and FFmpeg workflows for video processing and cloud storage. On the web, I built a Next.js platform using infinite scroll patterns (windowing) to keep performance strong for large datasets, and I supported product stability by integrating monitoring and crash reporting.

Earlier, I contributed to a field-sales mobile app in React Native, strengthening reliability with offline-first architecture using Realm DB and background synchronization in low-connectivity environments. I improved usability through dynamic forms with dependency logic and validations, automated AWS S3 uploads with multi-tenant asset handling, and integrated Razorpay payments while using Crashlytics and Sentry to reduce crash rates and improve app stability.