Hi, I’m
MANIRAJA NATARAJAN
Bangalore
Summary
Experienced and versatile DevOps / DevSecOps Engineer with 9+ years of IT experience, spanning cloud infrastructure, and Site Reliability Engineering (SRE). Proven expertise in designing, automating, and optimizing secure CI/CD pipelines and security best practices.
Overview
9
years of professional experience
1
Certificate
Work History
ThoughtWorks
Senior Consultant
10.2024 - 10.2025
Job overview
- Migrated deployment pipelines from Octopus Deploy to GitHub Actions (GHA), applying both lift-and-shift and refactoring PowerShell scripts for compatibility.
- Configured SSO Integration, GHES Backup strategy and github update services for robust version control and platform stability.
- Migrated artifact storage from JFrog Artifactory to Amazon S3, ensuring secure.
- Enabled GitHub Advanced Security (GHAS) including CodeQL analysis, Dependabot integration, and secrets scanning using GitHub Actions.
- Implemented Slack and GitHub Actions integration to deliver real-time deployment and build notifications to Slack channels.
- Introduced multiple optimizations in CI/CD pipelines to significantly reduce build and deployment times.
- Set up GitHub Runners, firewall ports, organizations, teams, repositories, and issue management as per best practices.
- Created AWS deployment roles and configured OIDC roles to enable secure communication between GitHub Actions and AWS using short-lived credentials.
- Worked on application stability initiatives as part of Site Reliability Engineering (SRE), leveraging AWS Inspector to identify vulnerabilities.
- Used AWS GuardDuty to monitor and analyze API calls for potential threats and suspicious activities.
- Integrated SAST (CodeQL) and DAST (OWASP ZAP) tools into the CI/CD pipeline for proactive application security testing.
- Payroll - Stack Digital
HTC Global Services
Lead Engineer
06.2023 - 02.2024
Job overview
- Worked across multiple microservices and deployed various APIs to enable seamless integration between services.
- Maintained independent databases for each microservice to ensure resilience and fault isolation.
- Provisioned infrastructure in AWS using Terragrunt by automating the Terraform workflow (init, plan, and apply) to streamline deployments.
- Installed and maintained Ansible, writing numerous playbooks to automate configuration changes and deployments.
- Stored Terraform state files in AWS S3 and implemented regular backups to prevent data loss and recover from unforeseen issues.
- Utilized Rancher console to monitor Kubernetes cluster health, perform immediate deployments, and validate cluster performance.
- Operated within a 21-day sprint cycle, executing minor production releases post each sprint and major releases every quarter.
- Managed the renewal and deployment of SSL certificates via AWS Certificate Manager (ACM) and CloudFront coordinated testing to ensure proper rollout.
- Identified and resolved multiple security vulnerabilities in development and production environments, contributing to overall system hardening.
- Boosted network, system, and data availability and integrity through preventive maintenance and upgrades.
Hewlett-Packard (HP)
Module Lead Engineer
06.2021 - 11.2022
Job overview
- Installed and configured Terragrunt for automated infrastructure provisioning via the command line.
- Led a team of 5 engineers in the MPC project, providing technical guidance and driving infrastructure decisions.
- Gained moderate experience in Python scripting, including writing AWS Lambda functions to fetch content and push data to Splunk dashboards.
- Possess strong foundational knowledge of networking concepts, including routes, firewalls, NAT, endpoints, and port configurations.
- Developed Bash scripts and scheduled cron jobs to automate routine tasks and system maintenance activities.
- Hands-on experience with search technologies such as Amazon ElastiCache for caching and indexing.
- Worked in a hybrid environment comprising both on-premises infrastructure and AWS cloud.
- Administered AWS and GitHub Enterprise (GHE) accounts, supporting development teams based on Jira requests and ticket workflows.
- Payroll - Mphasis
Go-MMT
Area Development Manager
01.2018 - 12.2020
Job overview
- Performed initial setup and configuration of Linux, Windows, and Ubuntu servers on Amazon EC2 for various environments.
- Installed necessary software and tools on end-user machines and servers based on project or team requirements.
- Established and followed safety procedures and operational protocols, prioritizing worker well-being and compliance.
- Identified, documented, and reported unsafe practices or system anomalies to maintain secure working conditions.
- Resolved user requirements and support requests through the Jira Service Desk, ensuring timely and effective ticket closures.
- Conducted research and diagnostics to troubleshoot system issues and provided tailored solutions to restore functionality.
- Managed and configured AWS services based on evolving business needs, including ELB, Route 53, S3, CloudWatch, IAM.
Refabd
Associate Software Engineer
08.2016 - 12.2017
Job overview
- Administered GitHub Enterprise (GHE), including provisioning access for development team members and configuring branch protection rules to safeguard against unauthorized merges or direct pushes.
- Established secure connections between Visual Studio Code (VSC) and GitHub Enterprise using SSH keys and Personal Access Tokens (PAT) to streamline development workflows.
- Built Docker images using Dockerfiles, pushed them to Amazon ECR, and deployed them to ECS services for containerized application delivery.
- Consistently used Terraform (via Terragrunt) as the primary tool to automate infrastructure provisioning and configuration management.
- Conducted research, diagnostics, and troubleshooting to identify and resolve infrastructure and deployment-related issues.
Education
Periyar University
MBA from International Business Management
07.2016
Anna University
Bachelor of Engineering from Electronics And Communication Engineering
07.2014
Skills
- AWS
- Azure
- GCP
- Docker
- ArgoCD
- Helm
- Terraform
- Terragrunt
- Cloud Formation
- Windows-10
- Windows-11
- Ubuntu- LTS 2004
- Ubuntu- LTS 2204
- Terraform Vault
- AWS Secret Manager
- AWS Guardduty
- Inspector
- Rancher
- VSC
- Notepad
- AppMesh
- Jfrog
- ELK
- GitHub Actions
- Jenkins
- Kubernetes
- MySQL
- MongoDB
- CW(AWS)
- Splunk
- Datadog
- Dynatrace
- DockerHub
- Harbor
- ECR
- Fortify
- Blackduck
- Sysdig
- Sonarqube
- Git
- GitHub
- Ngnix
- Ansible
- Python
- Bash
- Powershell
- Yaml
- Groovy
- Go
- Packer
Accomplishments
- Successfully remediated Log4j (Log4Shell) vulnerability across 100+ servers.
- Reduced incident response time (MTTR) by implementing centralized logging and alerting.
- Built dashboards in Splunk for CPU, memory, latency, error rates.
- Performed multiple root cause analysis (RCA) and implemented preventive fixes and updated the same in confluence.
- Reduced cloud service costs by 25-35% through implement rightsize, auto shutting-down, optimizing storages.
Availability
See my work availability
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Available
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Senior Consultant
ThoughtWorks
10.2024 - 10.2025
Lead Engineer
HTC Global Services
06.2023 - 02.2024
Module Lead Engineer
Hewlett-Packard (HP)
06.2021 - 11.2022
Area Development Manager
Go-MMT
01.2018 - 12.2020
Associate Software Engineer
Refabd
08.2016 - 12.2017
Anna University
Bachelor of Engineering from Electronics And Communication Engineering
Periyar University
MBA from International Business Management
Certification
- HashiCorp Certified: Terraform Associate, 11/23
- AWS Certified DevOps Engineer - Professional, 11/23
- Certified Kubernetes Administrator (CKA), 05/25