Damian Chelverajan

PROFILE

AWS-focused Cloud & Infrastructure Engineer with 15+ years’ (3+ in AWS Cloud) experience across system administration, cloud platforms, and enterprise IT operations. Skilled in designing, deploying, and supporting AWS environments including EC2, S3, IAM, Lambda, CloudWatch. Adept at automation using PowerShell and Bash, infrastructure monitoring, and implementing secure, scalable solutions. Proven record of working with cloud migrations, optimizing costs, and improving service reliability in global enterprises.

KEY ACHIEVEMENTS

Strengthened cybersecurity by implementing Privileged Access Management (PAM), migrating CommBank’s CommBiz domain user accounts to CyberArk (Privas), and improving compliance and account security 2023-2024.
Identified and Resolved (RCA) critical system errors in a core IIS-based business application used by CommBank’s CommBiz online platform, preventing operational disruption and improving system stability 2023-2024.
Reduced ongoing AWS infrastructure costs at Maxamation by optimizing cloud architecture and resource utilization, delivering significant cost savings 2022-2023.
Enabled seamless remote operations for WellDone Int’l by adapting IT infrastructure (servers, network, desktops) to support work-from-home capabilities during 2020–2021.
Delivered enterprise infrastructure projects at Virtusa Global, including Lenel Access Control, CCTV, and Security systems, completing a full migration within 12 months 2014-2017.
Achieved USD 50K annual savings by designing and deploying a global managed print solution, standardizing processes across multiple continents 2014-2016.

CORE SKILLS

CloudOps & SysOps – AWS (EC2, S3, Lambda, IAM, CloudWatch, Systems Manager), Azure basics, Terraform/CloudFormation (learning), Docker, Kubernetes (learning).
Automation & Scripting – PowerShell, Bash, CI/CD (ACDC, Octopus, Git Basics).
Infrastructure – Windows Server (2008–2022), Linux (CentOS, Ubuntu), VMware ESXi, Hyper-V.
Networking & Security – Cisco routing/switching, VPNs, F5 BigIP, Wireshark, Security Hardening, Endpoint Protection (McAfee, Symantec).
Observability & Monitoring – Splunk, AppDynamics, Grafana, AWS CloudWatch.
Service Management – ITIL Framework, Incident/Problem/Change Management, Project Delivery.

PROFESSIONAL EXPERIENCE

Infrastructure & Cloud Operations Engineer

Habitat3 (Project Based - Remote, Sydney) | Jan 2025 – Sept 2025

Provide advanced technical support for Windows Virtual Environments (Windows Servers) and Microsoft Office deployments in cloud environments.
Troubleshoot and resolve issues with third-party professional services applications (medical and accounting).
Maintain and patch Windows servers, collaborating with teams on AWS and Azure cloud solutions.
Document knowledge base articles and streamline technical processes.

Infrastructure Engineer

Commonwealth Bank of Australia (Sydney) | Oct 2023 – Nov 2024

Administer Windows Servers (EC2) running on AWS Infrastructure.
Delivered production deployments working with DevOps Teams via Octopus Deploy and ACDC, managing infrastructure monitoring with Splunk and AppDynamics.
Administered SSL certificates, F5 BigIP load balancers, and production server smoke testing.
Managed incident response for P1–P3 issues, leading root cause analysis and change planning.

System & Infrastructure Support Engineer

Maxamation (Remote, Sydney) | Dec 2021 – Oct 2023

Administered AWS services (EC2, S3, Security Groups, IAM, CloudWatch, Lambda) for SaaS production workloads.
Managed Linux and Windows servers, deploying applications through Git, and automating workflows using Bash and PowerShell.
Developed Python scripts to maintain and automate alerts and resource management within AWS Lambda.
Supported Office 365, JIRA, and cloud-based collaboration platforms.

IT Officer

WellDone International (Nowra, NSW) | Nov 2019 – Dec 2021

Managed hybrid infrastructure (Windows, CentOS, VMware ESXi, Hyper-V) and network devices (Mikrotik).
Supported remote call centre operations, deploying PBX systems, backup strategies, and patch management.

Earlier Career

Virtusa, Firstsource Dialog, Creative Cohort, Hellocorp (Sri Lanka) | 2002 – 2019

Progressed from Systems Engineer to Senior IT Consultant, delivering enterprise server, network, and security projects globally. (Please refer to LinkedIn for details).

(Content based on the provided resume document - DamianChelverajan_Resume2025.docx)

Damian Chelverajan

PROFILE

KEY ACHIEVEMENTS

CORE SKILLS

PROFESSIONAL EXPERIENCE

EDUCATION & CERTIFICATIONS

HOBBIES & INTERESTS