Aravindh Sekar
Certified Microsoft Azure Administrator
https://www.linkedin.com/in/aravindh.sekar
https://github.com/aravindhsekarit
Email :-Phone : -, -
Results-driven System & DevOps Engineer with over 7 years of experience in managing
open systems and hybrid infrastructures. Proven expertise in Red Hat Linux, Windows
Server administration, compliance enforcement (CIS), vulnerability remediation, and
large-scale system upgrades. Adept at resolving complex technical issues, performing root
cause analysis, and ensuring SLA adherence. Hands-on experience with configuration
management (Ansible), scripting (Python, Bash), virtualization, and incident tracking
tools like ServiceNow. Recognized for delivering consistent results in SIT/UAT
environments and contributing to continuous improvement initiatives.
Core Competencies
• Open Systems Administration (RHEL, CentOS, Windows Server)
• CIS Benchmark Compliance & Remediation
• SIT/UAT Environment Management
• Patch Management & OS Upgrades
• Vulnerability Assessment (VA) Tracking & Fixing
• Incident & Problem Management (RCA, PBI Reports)
• Change Management (CRQ Handling, Deviation Raising)
• Automation & Scripting (PowerShell, Bash, Python)
• Configuration Management (Ansible, Puppet)
• CI/CD & DevOps Tools (Jenkins, GitLab CI, GitHub Actions)
• Cloud Infrastructure Management (Microsoft Azure, AWS, GCP)
• Virtualization Platforms (VMware, Proxmox, Hyper-V)
• Containerization & Orchestration (Docker, Kubernetes)
• Monitoring & Logging (Grafana, Prometheus, Nagios)
• IT Infrastructure & Networking (DNS, DHCP, NAT, VPN, VLAN, Firewalls)
• Service & Incident Tracking Tools (ServiceNow, JIRA)
• Active Directory & Group Policy Management (GPO)
• Office 365 Administration (Exchange Online, Teams, SharePoint)
• IT Policy & Documentation Development
• ITIL Framework Familiarity
• Onsite & On-Call Technical Support
• End-to-End IT Project Coordination
• Root Cause Analysis & Preventive Measures Implementation
• Strong Analytical & Communication Skills
Professional Experience
RMZ Oilfield Engineering Pvt Ltd – Chennai, India
Senior System Engineer (Cloud)
Aug 2022 – Present
Roles & Responsibilities:
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Designed and implemented CI/CD pipelines in GitLab for multi-environment deployments
including SIT, UAT, and production.
Developed Infrastructure as Code (IaC) using Terraform, enabling consistent cloud
provisioning in AWS and Azure.
Automated configuration management using Ansible, reducing manual tasks and improving
environment consistency.
Used Docker to containerize monolithic and microservices applications, optimizing delivery
workflows.
Integrated Postman API testing and Selenium UI testing into CI pipelines for automated
test coverage.
Configured and maintained GitLab Runners for efficient CI/CD execution with custom build
agents.
Managed Jenkins pipelines for legacy application builds and integrated GitLab triggers for
hybrid workflows.
Monitored infrastructure and application performance using Prometheus and Grafana with
custom alerts and dashboards.
Integrated Dynatrace for real-time APM (Application Performance Monitoring) and root
cause analysis.
Deployed and managed centralized logging with Elasticsearch, Filebeat, and custom log
parsers.
Built custom Bash and Python scripts for health checks, log rotation, and automation of
repetitive DevOps tasks.
Administered virtual environments with VMware ESXi and Proxmox, ensuring high
availability and resource optimization.
Collaborated with development teams for Git branching strategies, merge request
approvals, and release versioning.
Supported blue-green and canary deployments to minimize downtime and deployment
risks.
Documented all CI/CD workflows, infrastructure standards, and deployment procedures in
Confluence.
Coordinated closely with QA teams to streamline deployment validation and post-release
monitoring.
Worked with Jira for sprint planning, story tracking, and DevOps issue resolution workflows.
Performed root cause analysis (RCA) for build failures, deployment rollbacks, and
environment drift.
Led knowledge transfer sessions for junior engineers on GitLab CI/CD, Terraform, and
Docker best practices.
Ensured compliance with CIS benchmarks and tracked security vulnerabilities across the
DevOps toolchain.
Nachiappa Swamigal Arts College – Karaikudi, India
IT Administrator
Jan 2020 – Aug 2022
Roles & Responsibilities:
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Deployed and maintained on-prem Linux and Windows servers for academic
platforms.
Administered Active Directory, including user/group management and GPO policies.
Configured DHCP, DNS, and firewall rules for stable and secure network operations.
Automated system tasks using Bash and PowerShell scripts for efficiency.
Managed FortiGate firewall, creating access rules and VPN policies.
Implemented basic monitoring using Nagios and custom shell scripts.
Led campus-wide IT infrastructure upgrade with minimal downtime.
Conducted backup strategies using Synology NAS with automated retention
policies.
Supported deployment of internal learning management and ERP systems.
Centauruss IT Service – Trichy, India
System Administrator
Aug 2017 – Dec 2019
Roles & Responsibilities:
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Provided end-user support for hardware, software, and network issues, resolving 50+
tickets weekly with high satisfaction ratings.
Installed and maintained Windows OS, Linux distributions, and performed
troubleshooting for desktops, laptops, and printers.
Configured and maintained basic virtual machines using VMware Workstation and
Hyper-V for development environments.
Assisted in patch management and software updates across user systems and test
servers.
Supported Office 365 user onboarding, password resets, and license allocations.
Contributed to initial network setup and cabling, including switch configurations and IP
allocations.
Handled antivirus deployment and routine scans for all endpoints.
Participated in IT asset inventory tracking and regular internal audits.
Assisted senior admins with basic PowerShell scripting and system automation.
Education:
Bachelor of Computer Applications (BCA)
Alagappa University, India
• Diploma in Computer Engineering
Dote, India
Certification:
• Certified Microsoft Azure Administrator (104)
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