EDWIN SAM - Jenkins (CI/CD)

Summary

1 year and 3 months of experience in IT, specializing in CI/CD and AWS DevOps. Proficient in leveraging AWS services for deployment, monitoring, and backup operations. Adept at developing, managing, and optimizing critical deployments using configuration management, containerization, and DevOps practices.

Overview

1

year of professional experience

Work History

Jenkins (CI/CD)

Teynampet, Chennai

07.2024 - Current

Developed and maintained CI/CD pipelines for multiple projects across frontend and backend applications (Node.js, React, PHP).
Designed parameterized pipelines for dynamic project selection, Git branches, and Docker deployment strategies.
Managed Docker image lifecycle: built, tagged (commit hash + build number), and deployed containers to production.
Automated container management: stopped/removed old containers and pruned outdated images.
Integrated GitHub repositories for application code and Jenkins automation using secure credentials.
Coordinated environment-specific configurations, copying necessary config files, dependencies, and third-party packages.
Ensured reliable production deployments with minimal downtime using containerized deployments and restart policies.
Monitored pipeline execution logs for multiple projects to enable fast troubleshooting and issue resolution.
Configured and managed Apache & Nginx web servers to host frontend and backend applications.
Deployed websites and web applications on EC2 instances with proper port mapping and high availability.
Set up virtual hosts, SSL certificates, and reverse proxy configurations for multiple domains and microservices.
Monitored server performance and logs; troubleshot downtime, connection errors, and misconfigured routes.
Integrated web server hosting with automated Docker container deployments through CI/CD pipelines.
Managed domains and subdomains using GoDaddy, including DNS records and propagation troubleshooting.
Configured and maintained SSL certificates (including wildcard SSL) for secure web applications.
Applied SSL to Apache/Nginx servers and implemented HTTP → HTTPS redirection, CORS policies, and WebSocket support.
Edited server configuration files for optimal domain routing, SSL, and protocol settings.
Coordinated with domain registrars and hosting providers to resolve issues and maintain uptime.
Designed and managed cron jobs on Linux servers to automate repetitive tasks for multiple development teams.
Scheduled backups, script executions, log rotations, and other operational tasks according to project schedules.
Monitored cron job execution, troubleshot failures, and ensured timely task completion.
Customized cron job scripts in collaboration with developers for application-specific needs.
Implemented AWS backup strategies using Data Lifecycle Manager (DLM) for EC2 instances and EBS volumes (AMIs and snapshots).
Performed manual EC2 volume backups and automated database backups using mysqldump for MySQL.
Configured and managed S3 backups, storing critical data in S3 Deep Archive for long-term retention.
Monitored backup jobs, verified integrity, and implemented retention policies to optimize storage.
Configured AWS Lambda functions with CloudWatch triggers to automatically start/stop EC2 instances during predefined hours.
Implemented DLM policies to manage lifecycle of EC2 AMIs and EBS snapshots.
Ensured regular backup creation, automated retention, and cleanup to maintain compliance and optimize storage.
Configured basic monitoring and alerting for applications and infrastructure using Prometheus and Grafana.
Created dashboards to visualize CPU, memory, disk usage, and container health metrics.
Monitored AWS resources using CloudWatch and set up alerts for threshold breaches.
Worked with AWS services including EC2, S3, Lambda, RDS, EFS, IAM, DLM, and CloudWatch.
Assisted in provisioning EC2 instances, S3 buckets, and EFS volumes for hosting applications.
Supported RDS deployments, automated snapshots, and backups using DLM.
Configured IAM roles and permissions for secure resource access.
Assisted in deploying serverless functions using AWS Lambda for automation tasks.
Estimated AWS costs and monitored cloud expenditure, whenever needed.
Downscaled database instances from higher-end to required amount to reduce operational costs.
Identified and terminated underutilized resources and reassigned Elastic IPs.
Containerized multiple Python (Flask, Streamlit, chatbot, voice models, MMV) and PHP applications for dev, UAT, and production.
Built and ran Docker images using docker build and docker run, managing ports, volumes, and environment variables.
Implemented container lifecycle management: stopping/removing old containers, tagging images, and pruning outdated images.
Created multi-project deployments with isolated environments for frontend, backend, APIs, and databases.
Assisted in linking containers to Jenkins pipelines for automated builds and deployments.
Managed exposed ports and mapped services for minimal downtime and reliable access.
Gained hands-on exposure to Kubernetes (EKS) for orchestrating Dockerized applications.
Assisted in deploying and managing pods, services, and deployments in development and UAT clusters.
Practiced scaling, self-healing, and rolling updates using Kubernetes deployments.
Monitored basic cluster health and pod status using kubectl commands and logs.
Collaborated with senior engineers to understand cluster configuration, node groups, and networking.
Integrated Jenkins with Docker and Nexus, facilitating seamless build and deployment automation.
Collaborated with the Cyber Security team to generate monthly VAPT (Vulnerability Assessment and Penetration Testing) reports.
Assisted in the implementation of AWS security services including WAF (Web Application Firewall), GuardDuty, and Inspector for monitoring and protecting cloud workloads.
Monitored security alerts, assisted in remediation of vulnerabilities, and ensured compliance with security best practices.
Contributed to strengthening application and infrastructure security through proactive measures and continuous collaboration with the security team.

Education

B.Sc. - Physics

Loyola College

05-2023

Skills

DevOps & Cloud: Jenkins, Docker, Kubernetes (EKS), AWS (EC2, S3, Lambda, RDS, IAM, CloudWatch, DLM, EFS)
Containerization & Deployment: Dockerfile creation, image building, container management, multi-project deployments
CI/CD: Jenkins pipelines for automated build, test, and deployment
Web Servers: Apache, Nginx, SSL (including Wildcard), domain/subdomain configuration

Scripting & Automation: Bash, cron jobs for scheduled tasks and backups
Monitoring & Logging: Prometheus, Grafana, CloudWatch
Databases & Backups: MySQL, PostgreSQL, MongoDB, mysqldump, S3 Deep Archive, AMI & snapshot backups
Programming / Frameworks: Python (Flask, Streamlit, chatbots, MMV, voice models), PHP (Laravel, custom apps)

Languages

English: Professional working proficiency

Tamil: Native / Full professional proficiency

Timeline

Jenkins (CI/CD)

07.2024 - Current

B.Sc. - Physics

Loyola College

Hobbies and Interests

Learning new DevOps tools and cloud technologies, Exploring AI/ML projects and automation scripts, Playing chess and solving puzzles