VIJAYA RAJAN
Chennai
Summary
Dynamic Linux System Administrator with a proven track record at EXPEDITORS, specializing in scalable infrastructure design and CI/CD automation. Proficient in Docker and Kubernetes, I excel in optimizing deployment processes while fostering collaboration. My expertise in Terraform and Python drives efficiency, ensuring robust and secure environments for microservices.
Overview
14
14
years of professional experience
Work History
Linux System Administrator
EXPEDITORS
CHENNAI
03.2024 - Current
- Designed and deployed scalable infrastructure on Microsoft Azure, utilizing Virtual Machines and Azure Kubernetes Service (AKS).
- Managed Azure resources using Terraform modules to ensure reusable templates for environment creation.
- Built end-to-end CI/CD pipelines in GitLab to automate build, test, and deployment processes for microservices.
- Configured linting and image validation pipelines to enforce Dockerfile best practices and container security compliance.
- Implemented GitLeaks scanning in CI/CD pipelines to detect accidental exposure of secrets in source repositories.
- Developed Python-based automation scripts for interacting with SOAP APIs and transforming data into custom formats.
- Streamlined data comparison workflows, automating backend validation and custom data synchronization processes.
SPECIALIZN INFO ENGGR II
Mphasis Limited
Bangalore
07.2022 - 02.2024
- Worked with Amazon Web Services' Elastic Container Service (ECS), specifically in setting up and managing ECS clusters and deployment lifecycles
- Worked with Amazon ECS capacity providers, which are a key component of Amazon Web Services' container management service
- Terraform to provision and manage various AWS resources, including VPCs, EC2 instances, ECS clusters, task services, ALBs, ASGs, and capacity providers.
- Git for version control and managing code repositories, including working with branches, merging code, and resolving conflicts. Additionally, I have experience working with GitHub to collaborate with team members, manage pull requests, and contribute to open-source projects.
- Jenkins cicd tool integrate with GitHub using multi branch pipeline we deploy into staging as well production.
- Orchestrated Docker container cluster using kubernetes.
- Built and deployed Docker containers for implementing micro services architecture from monolithic architecture.
- Develop automation processes to enable teams to deploy, manage, configure, scale, and monitor their applications through the use of tooling or scripting, reducing the time to get features into production.
LINUX ADMINISTRATOR
Radiant Cash Management Services
Chennai
08.2018 - 07.2022
- I was responsible for managing the infrastructure life cycle from installing, configuring, and maintaining high availability On-premise Kubernetes Clusters.
- Deploy pod manifest file with deployment with multiple replicas. Monitor pods using promethus with grafana dashboard.
- Implemented AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups. Wrote ansible YAML files and modules to deploy, configure, and manage services.
- Managed GitHub repositories and permissions, including branching and tagging. Installation, configuration and maintaining services such as Apache, MySQL Troubleshooting and Configuration of SSH, FTP, NFS and APACHE, Nginx Automating tasks through Scripting for various System admin tasks.
- Optimize Apache Web Server using MultiProcessing Module (MPM). Securing Apache with SSL Certificates, Fixing Errors.
- SSL Configuration / Renewal.
- Ability to understand and write basic SQL queries. Experience requiring a strong knowledge of pcs clustering.
LINUX ADMIN
Aalan Infotech
Salem
09.2016 - 07.2018
- Lead large IT projects, including the design and deployment of new IT systems and services.
- Prior experience in security area desired including encryption, key management, attestation infrastructure, mitigation of low-level system vulnerabilities.
- Knowledge of OS kernel internals, including memory management, resource management, and interrupt architecture.
- Analyze business requirements by partnering with key stakeholders across the organization to develop solutions for IT needs.
- Troubleshoot hardware and software issues related to internal IT.
- Installation of Linux operating systems on Hardware and Virtual environment.
- Installed packages using rpm and yum local repository.
- Monitoring disk status, system processes, memory activity and network by using main system utilities ps, free, vmstat, uptime, mdstat, gnome-system-monitor, netstat and top utilities.
- Services management Starting, stopping and managing services using chkconfig, service and System-config-services.
- Zimbra mail server installation and configuration, creating email ids and domains using shellscript, restrict email sent to other domains and monitor mail queue, mailbox log.
- Whm and cpanel installation and configuration group mail id creation and handling server issues.
- Centos webpanel installation and configuration.
- Install and configure Pfsense firewall.
DESKTOP SUPPORT ENGINEER
Zebronics
Chennai
08.2011 - 08.2016
- Managing and maintaining all the Windows and Linux Servers.
- Installation, configuration and maintaining services such as Apache, MySQL and Mysql database backup and restore.
- Automating daily backups using shell script.
- Zabbix monitoring tool installation to monitor server health. FTP installation and configuration on ubuntu and centos7. Samba, nfs server installation and configuration for file sharing.
- Monitor production systems, applications and network performance through the use of various Network Management and Application Monitoring Tools.
- Configuration and management of AD Infrastructure.
- Providing software installation and Troubleshooting OS related problems.
Education
BACHELOR OF ENGINEERING - COMPUTER SCIENCE
Dhanalakshmi Srinivasan Engineering College
Perambalur01.2008
Skills
- Linux
- Docker
- Kubernetes
- Ansible
- Terraform
- Git
- Python
- Shell script
- Prometheus
- Grafana
- MySQL
- MongoDB
- Ubuntu
- Redhat
- Centos
Timeline
Linux System Administrator
EXPEDITORS
03.2024 - Current
SPECIALIZN INFO ENGGR II
Mphasis Limited
07.2022 - 02.2024
LINUX ADMINISTRATOR
Radiant Cash Management Services
08.2018 - 07.2022
LINUX ADMIN
Aalan Infotech
09.2016 - 07.2018
DESKTOP SUPPORT ENGINEER
Zebronics
08.2011 - 08.2016
BACHELOR OF ENGINEERING - COMPUTER SCIENCE
Dhanalakshmi Srinivasan Engineering College