● Designed and implemented high-performance RESTful APIs capable of processing 2,000+ requests per second for 200+ concurrent users, utilizing Node.js, Express, and PostgreSQL.
● Doubled system capacity and eliminated bottlenecks by refactoring synchronous operations to a queue-based processing system using PGBoss, reducing blocked API calls by 120% and improving overall response times by 85%.
● Boosted application scalability and maintainability by migrating monolithic legacy applications to containerized microservices architecture on AWS ECS Fargate using Docker, improving deployment flexibility and resource utilization.
● Executed cloud optimization initiative, reducing infrastructure costs $120,000/year through systematic audits of EC2 instance types and optimization of S3 storage lifecycle policies.
● Accelerated deployment cycles from 60 minutes to five by designing and implementing robust GitHub Actions CI/CD workflows with automated testing; release frequency increased by 400% while maintaining code quality and stability.
● Engineered enterprise-grade reliability solutions achieving 99.999% uptime with comprehensive monitoring and alerting systems (CloudWatch, Datadog, PagerDuty), using custom dashboards to support proactive issue resolution across distributed services.