LAKKUMANAN SHUNMUGAM
Johns creek,GA
Summary
Experienced DevOps professional with over 10 years in Information Technology. Skilled Senior DevOps Engineer proficient in establishing CI/CD pipelines, scripting deployment processes, automating cloud resource provisioning with Terraform, managing Kubernetes clusters, and implementing monitoring SLIs and SLOs.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Senior Devops Engineer
Tata Consultancy Services
01.2019 - Current
- Collaborated with a premier American fashion and beauty retail giant (Macy's) to execute comprehensive Google Cloud migration strategy, encompassing supply chain management, merchandising, and corporate system applications previously housed on-premises
- Function as DevOps/Platform Engineer, delivering Continuous Integration and Continuous Deployment/Delivery solutions for services catering to Supply Chain, Merchandising, and corporate domains
- Developed user-friendly self-service tool enabling developers to autonomously create Jenkins pipelines and Git repositories with default folders and files for new microservices, significantly reducing dependency on DevOps team by 50%
- Decreased manual cloud infrastructure setup by 80% by implementing Terraform and crafting customized Terraform modules for diverse infrastructure needs
- Migrated continuous deployment from Spinnaker platform to ArgoCD using GitOps model, empowering developers to deploy from Git using tags. This initiative significantly reduced DevOps team's deployment dependency by 90%
- Developed and implemented Liquibase automation scripts to streamline and version database modifications, resulting in reliance on DBA intervention in 60% reduction and mitigating restrictions associated with DDL changes
- Overseeing operations for 100+ Google projects, managed 150+ GKE engines, and effectively coordinated functionality of 500+ microservices
- Collaborated closely with customer business and IT teams to analyze system design and architecture, providing solutions that enhance system availability, optimize costs, and evaluate existing systems to determine their effectiveness and suggest changes to meet organizational requirements, identifying improvement opportunities
- Established continuous monitoring system, leveraging Prometheus, Grafana and ServiceNow tools track for latency, http response code, unavailability, performance issues ensuring proactive identification and resolution of issues.
Websphere Commerce Administrator
Tata Consultancy Services
01.2018 - 12.2018
- Managed and upheld operational integrity of an e-commerce platform (paris.cl) for a leading retailer in South America and Specializing in diverse product lines, including fashion, electronics, beauty, and household goods, company caters to a wide consumer base across region
- Working as a system Administrator in huge team that supports .com website. Majorly working on WebSphere Commerce Servers and working on a project setting up tomcat servers for some of newer applications that are being built. This being a retail environment We faced with daily challenges with traffic related problems and site availability with more than 50k orders hits coming in everyday.
- Configured and maintained WAS Application, IHS, and Solr servers through UNIX, including making configuration changes, starting, and stopping JVM, Nodes, DMGRs, and analyzing runtime logs for errors
- Executed and resolved real-time issues on preprocess, build index, stage prop and index prop utilities
- Server Installation, version upgrade and, JVM addition and reduction based on demands and requirements.
Websphere Commerce Administrator
Tata Consultancy Services
03.2013 - 12.2017
- Managed and upheld the operational integrity of an e-commerce platform (store.hp.com) for a leading manufacturer of personal computers, printers, and associated supplies
- Working as a system Administrator in a huge team that supports the .com website. Majorly working on WebSphere Commerce Servers and working on a project setting up tomcat servers for some of the newer applications that are being built. This being a retail environment we are faced with daily challenges with traffic related problems and site availability with more than 100k orders coming in everyday.
Education
Bachelor of Science - Mechanical Engineering
Anna University
Chennai, India04.2012
Skills
- CICD - Jenkins, Spinnaker & ArgoCD
- Automation - Terraform & Ansible
- Container & orchestration - Docker & Kubernetes
- Cloud - Google Cloud Platform
- Scripting - Bash & Python
- Monitoring - Prometheus & Grafana
- Version control - Gitlab
- Operating system - Linux
Certification
Certified Kubernetes Administrator
Google Cloud Certified Professional Cloud Architect
Timeline
Senior Devops Engineer
Tata Consultancy Services
01.2019 - Current
Websphere Commerce Administrator
Tata Consultancy Services
01.2018 - 12.2018
Websphere Commerce Administrator
Tata Consultancy Services
03.2013 - 12.2017
Bachelor of Science - Mechanical Engineering
Anna University