Designed and developed RESTful APIs to integrate front-end and back-end systems, optimizing communication and reducing response time by 30%. Built scalable backend services with Node.js and Express, improving data processing efficiency by 40%. Implemented unit testing with Jest and Mocha, achieving code coverage above 90% and reducing bugs by 25%. Refactored legacy systems using MVC and Microservices to improve maintainability and scalability. Collaborated in an agile environment, contributing in sprint planning, standups, and retrospectives. Mentored junior engineers and maintained database integrity in PostgreSQL and MongoDB, optimizing queries for a 20% improvement in responsiveness. Researched and implemented new technologies to stay ahead of industry trends.

Senior Software Engineer at Unqork

July 1, 2017 - December 1, 2022

Developed full-stack web applications using React and Node.js; designed and optimized REST APIs, improving data retrieval speed by 35%. Refined codebase using Singleton and Factory design patterns to ensure maintainability. Utilized TypeScript to enhance type safety and code quality. Conducted unit testing and employed Test Driven Development (TDD) to ensure stable, high-performing features. Collaborated with the team to design and launch new features based on customer feedback, improving product usability by 25%. Assisted in integrating NoSQL databases like MongoDB, enhancing system flexibility and scalability.

Software Engineer at Yeti

June 1, 2013 - June 1, 2017

Built dynamic web applications using JavaScript and React, improving load times and enhancing user experience. Designed and maintained RESTful APIs to ensure smooth data flow between client and server. Improved MySQL query performance, reducing page load time by 15%. Participated in code reviews, providing feedback to improve code quality. Collaborated with designers and product managers to launch key features that increased customer retention by 10%.