Professional React Developer

Led the UI/UX overhaul of a core product, improving user engagement by 20% and reducing bounce rates by 30%, resulting in increased customer retention. Implemented a scalable and secure authentication system using Keycloak and OpenID Connect, reducing authentication time by 40% and streamlining user access across applications. Integrated Kubernetes into the CI/CD pipeline, automating deployments and reducing deployment time by 40%, while improving system scalability. Implemented Kotlin Coroutines for asynchronous programming, reducing blocking operations and improving app performance by 30%. Mentored junior developers in React, TypeScript, and best practices, helping to improve team output by 25% and accelerate delivery timelines. Refined Kotlin-based backend services to optimize data retrieval, improving API response times by 25%. Optimized front-end performance by refactoring legacy code, improving page load speed by 35%, and contributing to a 15% reduction in bounce rates.

Developed and maintained scalable full-stack applications using React and Node.js, serving over 10,000 active users. Implemented third-party API integrations for multiple clients, streamlining real-time data access and improving operational efficiency by 25%. Developed a user-friendly Android app in Kotlin for a local business to manage customer orders and inventory. Collaborated closely with design and backend teams to deliver a customer-facing application, enhancing the user experience and driving 25% more user engagement. Contributed to the optimization of database management using AWS RDS, improving query performance by 30% and reducing data load times.

Refined UI components and integrated Express.js for efficient back-end routing, improving system performance and overall user interaction speed by 20%. Worked on front-end performance optimization for legacy systems, bringing them up to modern ES standards and reducing technical debt by 15%. Developed real-time data streaming features for clients in the banking and finance sectors, ensuring accurate data delivery and high system uptime.

Developed React applications and integrated them with Node.js back-end services, improving application response times by 30% and creating dynamic, user-friendly interfaces. Created and optimized SQL databases using AWS RDS, streamlining data access and reducing server load by 20%. Collaborated in an agile development environment, participating in sprint planning, code reviews, and issue resolution.

Developed SEO-optimized, server-rendered websites using Next.js, increasing page load speeds by 40% and improving search engine rankings for clients. Designed intuitive, responsive user interfaces using React and GraphQL, improving user engagement by 25%. Worked directly with clients to create custom UI/UX solutions, leveraging tools like Adobe XD to meet their design needs and improve their brand identity.