During my time at BigTech Inc, I developed and maintained essential internal tools utilized by over 1,000 engineers company-wide. I also implemented a new automated testing framework which successfully reduced QA time by 50%. Beyond these primary responsibilities, I actively contributed to various open-source projects and improved internal documentation resources.

At StartupX, I built core product features using React, Node.js, and PostgreSQL, successfully serving over 500,000 users. I implemented a CI/CD pipeline that dramatically reduced deployment time from 2 hours down to just 15 minutes. Additionally, I led the crucial migration from a monolithic architecture to microservices and optimized our cloud usage, achieving a 35% reduction in AWS infrastructure costs.

In this role, I led the development of a microservices architecture that served over 1 million daily users, achieving a 40% reduction in latency. I also architected and implemented real-time collaboration features using WebSocket, which significantly increased user engagement by 60%. Furthermore, I mentored five junior engineers, established best practices for code review and documentation, and introduced TypeScript along with robust testing practices, resulting in a 45% decrease in production bugs.