As a DevOps engineer, I designed and implemented a CI/CD pipeline for microservices using Git, CircleCI, Docker, and Kubernetes, which automated build, test, and deployment and significantly reduced release time. I configured NGINX as a reverse proxy and load balancer for our services on AWS EC2 (Amazon Linux), improving reliability and performance. I also introduced infrastructure as code with Terraform and centralized secret management using Infisical, making our environments more secure, consistent, and easier to manage.