Abhishek Kumar

About Abhishek Kumar

DevOps Engineer | 3+ Years of Experience | AWS Cloud, Terraform, CI/CD, Kubernetes | Cost Optimization & InnovationAs a DevOps Engineer with over 3 years of experience, I have a proven track record in optimizing cloud infrastructure and automating deployment pipelines, driving cost efficiency, and bringing innovative solutions to complex challenges in AWS environments. My expertise in containerization, orchestration, and infrastructure-as-code (IaC) has enabled teams to scale faster while reducing operational costs.Key Achievements->Reduced cloud infrastructure costs by 20% by utilizing Docker as a Jenkins worker node agent, effectively streamlining build processes and minimizing the need for additional resources->Provisioned and managed AWS services (EC2, VPC, S3, IAM, DynamoDB) using Terraform, ensuring a robust, consistent infrastructure across multiple teams and environments->Played a key role in migrating workloads to AWS EKS (Elastic Kubernetes Service), which improved scalability and streamlined container orchestration. Deployed applications using Helm charts, simplifying Kubernetes management and enhancing operational efficiency->Implemented CI/CD pipelines using Jenkins, integrated with GitHub and Argo CD for continuous delivery to AWS EKS. Introduced Docker-based builds to optimize resource usage and enhance pipeline speed->Leveraged Maven for building Java-based applications and integrated SonarQube for static code analysis, improving code quality and reducing vulnerabilities->Worked closely with development and operations teams to design scalable, resilient cloud architectures, ensuring alignment with business goals while adopting cutting-edge technologies.Key Technical Skills: AWS (EC2, VPC, S3, IAM, DynamoDB, EKS), Terraform, Docker, Helm, Git, GitHub, Jenkins, Argo CD, Maven, SonarQube, CI/CD, Kubernetes

Experience

1. Devops Engineer

   Tata Consultancy Services

   Jan 2020 — Present

   Building CI/CD pipeline with Jenkinsfile for JAVA Application.Automating Build and release process by integrating tools such as GitHub for Source Code, Maven for build, SonarQube for Static Code Analysis, Nexus to store the Artifact.Configuring Slave Nodes with Master Node in Jenkins to perform specific task.Creating users and managing users permission for different teams in Jenkins.Email notification setup for the team after the execution of Jenkins job.Managed Jenkins slave version,installation of softwares on servers using Ansible as Configuration management tool.AWS EC2 Instance, S3, DynamoDB, IAM User & IAM Policies, provisioning with Terraform.Dockerizing Java Spring Boot Application.Dockerizing Java Web Application with External Tomcat.Dockerizing Python Flask Application.Pushing the Docker image to private registry.Writing manifests file pod.yaml,service.yaml, replicaset.yaml, Deployment(blue- green).yaml for kubernetes cluster.Managed AutoScaling-Horizontal Pod Scaling for Kubernetes cluster based on Metric Server.Spring Boot App Deployment with MySQL DB using Config Map & SecretSetting up Prometheus and Grafana in Kubernetes cluster using Helm Chart.Kubernetes cluster Monitoring using Prometheus and Grafana.Managed Log Aggreggation using EFK.Routeing traffic from external sources to the services in the kubernetes Cluster using Ingress resource.Setting up of AWS S3 event Triggering by using Shell Scripting.Creating Bash Scripts for taking backup for log files in every 24 hours using Cron job.To create and manage AWS infrastructure with almost zero downtime.Creating AMI(Amazon machine Images) from AWS console in multiple regions.Managing S3 Buckets,Route 53 gateway in AWS.Creating various alarms using AWS Cloud Watch for all the QA and PROD servers and also getting notification when alarm is triggered via AWS SNS Service.

Education

• Haldia Institute of Technology

  Applied electronics and Instrumentation Engineering

• Haldia Institute of Technology

  Bachelor