Nandhakumar S. Selvarajan
Tirupur,TamilNadu
Summary
AWS DevOps Engineer with 6+ years of experience designing and implementing scalable solutions using AWS and Terraform . Proficient in deploying and managing containerized applications using Docker and Kubernetes , and implementing CI/CD pipelines with Jenkins .
Overview
16
16
years of professional experience
Work History
Staff Engineer
Altimetrik
12.2021 - Current
- Provision & manage all the AWS resources efficiently by using the IaC tools like Terraform (or) CloudFormation.
- Successfully deployed the CI Jenkins Pipeline with the stages: SCM Checkout, Preparation, Linting, Unit Testing, SonarQube Quality Scan, Veracode Scan and integrated with Hooks & Webhooks (If any PR opened & code changes) in the Bitbucket Repo for the automated build by using Jenkins.
- Successfully deployed the CD Jenkins Pipeline with the stages: SCM Checkout, Create Zip of Code Base, Copy Code Base to Build Server, Build Docker Image, Docker Image Scan, Download_WizCLI, Auth_With_Wiz, Wiz Image Scan, Push Docker Image to ECR, Update ECS with new Image.
- After successful services/applications deployment, performing the various tests against the ML models (Model Registration, Versioning, Testing & Promoting) via UI Dashboard.
- Performing the API calls related to the ML models via Postman client for the various actions (Model Registration, Versioning, Testing, Promoting & Calculation).
- Troubleshooting the AWS ECS containers by checking the logs for the various errors on the AWS end.
- Used Cloud Watch & Splunk for monitoring AWS cloud resources and the applications that deployed on AWS end.
- Successfully set up the log push from CloudWatch to Splunk for the environments (Dev, UAT & Prod) & integrated the Splunk alerts into ServiceNow.
- Successfully set up the Lambda functions for the various tasks (ECS Task/Service Down, Certificate Expiry, AWS Sage Maker Status change).
- Generating vulnerabilities (Cloud Configuration, Infra & Container) from Panaseer & Wiz tool then analyze, investigate, identify the root cause of the security issues & fix them on the environments.
- Generating the Veracode Report & worked with Vendor (Veracode Support team) to fix the vulnerabilities related to the Python & terraform codes.
- Analyzing & fixing the SonarQube Scan Reports, Veracode Scan Reports & Wiz Scan Reports.
- Co-ordinating with different teams (Network Team, Security Team, Development Team, ... etc.) related to my tasks.
- Creating & performing the change activities in the Production environment via Change ticket with the Change Advisory Board (CAB) approval.
- Attended the Daily Stand-Up meeting with the client and provided proper updates for the user stories.
- Worked with a support team to fix the non-compliant issue for the EC2 instances.
- Closing the JIRA tickets as per the Sprint time & also updating the ticket notes in the comment section.
- Preparing the KB documents & uploading them to the Confluence page for the team's reference.
- Provided the KT session to the new joiners and helped them to successfully onboard.
Senior System Engineer
NTT
01.2019 - 12.2021
- Implemented security best practices within the AWS environment, safeguarding sensitive data and ensuring compliance with industry regulations.
- Optimized cloud resource usage through continuous monitoring and cost analysis.
- Setting up the Windows Failover Cluster for the Windows 2019 EC2 Instances.
- Performed failover cluster testing in different scenarios.
- Upgraded the Application License on the host machines.
- Proposed the solution & successfully set up to move the data from On-Prem to AWS via AWS Data Sync Service.
- Performed the performance test for the data movement from On-Prem to AWS.
System Engineer
DXC Technology
11.2016 - 01.2019
- Mentored junior team members, contributing to their professional growth and development.
- Established best practices for knowledge sharing, fostering a culture of continuous learning and improvement.
Subject Matter Expert
Microland
05.2015 - 11.2016
- Mentored junior administrators on Windows administration tasks, fostering a supportive learning environment and promoting professional growth.
- Maintained high-availability systems through regular patching and proactive maintenance tasks, ensuring optimal performance at all times.
- Reduced downtime for critical applications by proactively monitoring server health and addressing potential issues.
Senior System Engineer
Wipro Technology
10.2013 - 05.2015
- Reduced downtime with proactive system monitoring and prompt troubleshooting of server issues.
- Collaborated effectively with cross-functional teams for seamless integration of new applications into existing infrastructure.
Graduate Engineer Trainee
HCL Technology
11.2008 - 10.2013
- Shadowed designers and engineers to learn ways to implement methodologies.
- Participated in regular progress meetings with project stakeholders, keeping them informed about status updates.
- Prepared standard reports and documentation to communicate results to senior management.
Education
Bachelor of Engineering - Electronics and Instrumentation
Government College of Technology
Coimbatore04.2008
Diploma - Electronics and Communication
Nachimuthu Polytechnic
Pollachi04.2004
XII -
Gandhi Kala Nilayam, Hr. Sec. School
Karattumadem03.2002
X -
Government High School
Udukkampalayam04.2000
Skills
- Operation System : Windows & Linux
- Cloud : AWS
- IaC Tools : Terraform & CloudFormation
- SCM Tools : Git, Gitlab, GitHub & BitBucket
- DevOps Tools : Jenkins, Docker, Kubernetes, ECS, EKS & Ansible
- Security Tools : Wiz, Panaseer, SonarQube & Veracode
- Scripting : Powershell, Shell & Python
- Monitoring Tools : CloudWatch, Splunk
- JIRA & ServiceNow
Accomplishments
- Have been awarded 'Comnet Jewel – Consistent Performer' award from the Management for my consistent performance and member of Gold Club.
- Has been awarded 'Most Valuable Player' award from the Client for my rapid performance.
- Has been appreciated for completing the automation activities in the Project.
Languages
English
Kannada
Tamil
Telugu
Disclaimer
Hereby I declare that all the Information furnished above is correct, & I assure you that I will fulfil all your job requirements to the fullest satisfaction. I expect your favorable reply at the earliest.
Hobbies
- Volunteering at the ashram on weekends to serve food to elderly people.
- Playing cricket with friends on Sundays.
- Travel with family to explore new places, capturing stunning landscapes through photography.
Timeline
Staff Engineer
Altimetrik
12.2021 - Current
Senior System Engineer
NTT
01.2019 - 12.2021
System Engineer
DXC Technology
11.2016 - 01.2019
Subject Matter Expert
Microland
05.2015 - 11.2016
Senior System Engineer
Wipro Technology
10.2013 - 05.2015
Graduate Engineer Trainee
HCL Technology
11.2008 - 10.2013
Bachelor of Engineering - Electronics and Instrumentation
Government College of Technology
Diploma - Electronics and Communication
Nachimuthu Polytechnic
XII -
Gandhi Kala Nilayam, Hr. Sec. School
X -
Government High School
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