Summary
Overview
Work History
Education
Skills
Languages
Digital Credentials
Certification
Accomplishments
Timeline
Generic

Dharshini Ellappan

Gonzales,LA

Summary

  • Over 12 years of IT experience, including over 7 years as a Cloud/DevOps Engineer focused on designing and managing cloud infrastructure, CI/CD pipeline configuration, build, deployment, and release management in AWS and Azure environments.
  • Skilled in configuration management and continuous deployment using GitLab, Docker containerization, Linux, and Kubernetes container orchestration.
  • Proficient in Infrastructure as Code (IaC) using Terraform, and experienced with AWS and Azure DevOps services.
  • Strong expertise in Docker for container runtime, and working with Kubernetes and Helm for container orchestration.
  • Experienced in provisioning Kubernetes clusters using Rancher (Rancher Kubernetes Engine).
  • Implemented disaster recovery strategies for Kubernetes clusters using Velero and Restic.
  • Hands-on experience with Jenkins, GitLab CI/CD, and Maven build tools.
  • Skilled in Ansible for configuration management using roles, modules, and playbooks.
  • Worked extensively with AWS services such as EC2, S3, VPC, EKS, RDS, SNS, EFS, Auto Scaling, Route 53, NAT Gateway, and monitoring tools like Splunk and Dynatrace.
  • Experienced in data warehouse development and testing, including project planning, requirements gathering, design, testing, defect tracking, and support.
  • Extensive experience in ETL methodology for data extraction, transformation, and loading using Informatica PowerCenter.
  • Proficient in both manual and automated testing, including system integration, user acceptance, functionality, regression, and data validation testing.
  • Performed and documented unit testing to validate ETL mappings, and verified data pre- and post-load.
  • Monitored daily ETL loads using Informatica PowerCenter; resolved load failures, and coordinated with data providers for issue resolution.
  • Experienced with various SDLC methodologies, including Agile-Scrum and Waterfall.
  • Provided application support to resolve production issues and maintain system stability.
  • Conducted data analysis and validation based on the business rules defined by the Data Governance team.
  • Strong communication, documentation, and team collaboration skills, with an analytical mindset, and the ability to manage multiple tasks in a fast-paced, quality-driven environment.

Overview

13
13
years of professional experience
1
1
Certification

Work History

Sr. DevOps Engineer

IBM Corporation
Baton Rouge, LA
08.2020 - Current
  • Designed and implemented CI/CD pipelines using Azure DevOps, Jenkins, Git, Maven, and Nexus across Azure, AWS, and GCP.
  • Automated infrastructure provisioning with Terraform and CloudFormation for scalable, fault-tolerant, multi-tier environments on AWS and Azure.
  • Managed Kubernetes clusters (EKS, AKS) using Terraform and Helm; configured multi-zone/region deployments, and implemented sealed secrets.
  • Developed and deployed containerized applications with Docker and Kubernetes; built minimal, multi-stage Docker images, and hosted them in Harbor, ECR, and ACR.
  • Integrated SonarCloud and Trivy into pipelines for code quality and security scans; remediated image vulnerabilities.
  • Configured the Application Load Balancer as an Ingress Controller with access restrictions; implemented Docker and Kubernetes security best practices.
  • Automated provisioning and configuration using Ansible (Python/YAML) for Azure VMs and container scanning tasks.
  • Built .NET Core CI/CD pipelines for Azure App Services; leveraged Docker for local testing and build agent containers in Azure DevOps.
  • Worked on Splunk (Enterprise Security, ITSI) for log analysis, custom dashboards, KPI setup, and anomaly detection; wrote complex SPL queries.
  • Installed and configured the Prometheus Operator with alerting via Slack and email; integrated CloudWatch log analysis for automated security actions.
  • Experienced in OpenShift and Fargate integration with EFS; managed microservices deployments, and configuration updates.
  • Performed infrastructure automation using PowerShell, Shell, and Bash; developed scripts to streamline release tasks.
  • Maintained environment-specific configurations using separate values files, and automated deployments through Jenkins dashboards.
  • Enabled auto-scaling based on performance tests; collaborated with AWS Support on resource tuning, and issue resolution.
  • Used GCS (Coldline) for backup solutions; managed bucket policies, and permissions.

DevOps Engineer

IBM Corporation
East Lansing, MI
11.2015 - 01.2018
  • Designed and implemented build processes using MSBuild for deploying applications on Apache Tomcat.
  • Developed Ansible playbooks for operational tasks, such as VM backups, snapshot management, start/stop operations, and tagging.
  • Deployed foundational and workload infrastructure using Terraform golden repositories across Azure, AWS, and GCP.
  • Provisioned environments for Development, QA, UAT, and Security teams.
  • Configured automated CI/CD pipelines for daily and end-to-end deployments.
  • Resolved support tickets and developed automation scripts to streamline routine tasks.
  • Troubleshot and resolved build and deployment issues during application rollouts.
  • Integrated SonarQube into DevOps pipelines for static code analysis and quality enforcement.
  • Managed builds and deployments across multiple environments, with consistent delivery practices.
  • Executed a proof of concept (POC) for Docker, and optimized container-based deployment processes.
  • Analyzed logs to diagnose and fix application and container-level issues.
  • Configured Network Security Groups with customized inbound rules to allow secure access from private network ranges, enhancing overall system security.

Informatica Lead

IBM Corporation
East Lansing, MI
09.2016 - 01.2018
  • Coordinated with clients to gather and analyze business and technical requirements for data integration projects.
  • Led offshore and onsite teams, effectively delegating tasks, and ensuring timely project delivery across geographies.
  • Designed and developed history interfaces to cleanse and reload corrected data in the Enterprise Data Warehouse (EDW).
  • Replaced legacy Edward data with accurate, validated data sets using Informatica ETL workflows.
  • Prepared and reviewed project documentation, including Join Reports, Stats Master, Capacity Planning, DB Object Workbooks, and Test Plans.
  • Created and maintained optimized WLM (Workload Management) schedules for efficient job execution and monitoring.
  • Collaborated with DBA teams for table backups, DDL changes, and database performance optimization.
  • Published and managed data models, and supported database object version control.
  • Developed and executed Unit Test Plans and SIT (System Integration Testing) Plans to ensure data accuracy and reliability.
  • Implemented and tracked DDL changes through standardized change request processes.
  • Oversaw end-to-end ETL workflows, job monitoring, and performance tuning to meet SLA, and project goals.

Informatica Developer

IBM Corporation
East Lansing, MI
05.2012 - 09.2016
  • Developed and maintained ETL mappings, sessions, and workflows using Informatica PowerCenter for data extraction, transformation, and loading from various sources.
  • Designed and implemented complex transformations using Expression, Aggregator, Lookup, Joiner, and Router components.
  • Created reusable Mapplets and Worklets to improve development efficiency and consistency.
  • Involved in data analysis, source-to-target mapping (STTM), and technical specification documentation.
  • Optimized Informatica mappings and sessions to enhance performance and reduce data load times.
  • Worked closely with DBAs and data modelers for performance tuning and schema optimization.
  • Scheduled and monitored ETL workflows using Informatica Scheduler, Control-M, or other enterprise schedulers.
  • Participated in unit testing, system integration testing (SIT), and supported user acceptance testing (UAT).
  • Implemented error handling, logging, and data validation mechanisms in workflows and mappings.
  • Collaborated with business analysts and QA teams to understand business requirements, and deliver accurate data solutions.
  • Assisted in migrating ETL code between development, test, and production environments.
  • Performed data profiling and analysis to ensure data quality and integrity throughout the ETL process.
  • Supported production processes, handled incident tickets, and performed root cause analysis for data-related issues.

Education

Bachelor's Degree - Electronics and Communication Engineering

Udhaya School of Engineering
TamilNadu, INDIA
01.2010

Skills

Cloud : Amazon Web Services (AWS), Microsoft Azure Cloud
Version Control : GIT (GitHub), Subversion, Bitbucket
Scripting Languages : Python, Shell, Bash
CI/CD Tools : Docker, Jenkins, Kubernetes
Build Tools : ANT, Maven
Repositories : Nexus, Artifactory
Configuration Management Tools : Ansible, Chef, Puppet
Other Tools : Jira, Splunk, Nagios, Mozilla SOPS
Web Servers : Apache Tomcat, WebLogic, WebSphere, JBOSS
Databases : Oracle, SQL Server, MySQL, DB2
Monitoring : Kafka
Operating Systems : Windows 98/XP/NT/2000/2003/2008, Linux

Languages

English, Fluent

Digital Credentials

  • IBM watsonx.data Technical Essentials, 2025
  • Machine Learning with Python, 2025
  • Databricks Accredited Generative AI Fundamentals, 2024
  • Databricks Lakehouse Fundamentals, 2024
  • Python for Data Science, 2020

Certification

  • Project Management Professional (PMP)® - 2023
  • Microsoft Certified: Azure Fundamentals - 2023
  • AWS Certified Cloud Practitioner - 2023
  • Microsoft Certified: Azure AI Engineer Associate - 2025

Accomplishments

• IBM Excellence Award IBM Corporation, December – 2012.

• IBM Excellence Award IBM Corporation, December – 2014.

Timeline

Sr. DevOps Engineer

IBM Corporation
08.2020 - Current

Informatica Lead

IBM Corporation
09.2016 - 01.2018

DevOps Engineer

IBM Corporation
11.2015 - 01.2018

Informatica Developer

IBM Corporation
05.2012 - 09.2016

Bachelor's Degree - Electronics and Communication Engineering

Udhaya School of Engineering

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Dharshini Ellappan