Bengaluru, India · 5+ Years in IT Infrastructure & Security
I'm a System Administrator with 5+ years of hands-on experience in IT infrastructure, endpoint security, and network operations — currently transitioning into a DevOps / Cloud Infrastructure role.
My work spans Linux server administration, Windows Server environments, SIEM operations (Wazuh), endpoint security (Trend Micro Apex One, Netwrix DLP), and network security (FortiGate, SonicWall, pfSense). I'm now building on that foundation to design, automate, and secure cloud-native infrastructure using modern DevOps tooling.
I document my journey at Ghost Ping Security — covering sysadmin workflows, security tooling, and DevOps lab notes.
Deepening AWS architecture skills (EC2, VPC, IAM, RDS, CloudWatch)
Building CI/CD pipelines with Jenkins and GitLab
Infrastructure-as-Code with Terraform
Container orchestration with Docker
Preparing for CompTIA Security+
Open to: Associate DevOps | Cloud Support | Infrastructure Engineer roles
A structured skill-building path documenting real lab work and production-ready scripts.
| Domain | Tools & Technologies | Status |
|---|---|---|
| Cloud Infrastructure | AWS EC2, VPC, IAM, S3, RDS, CloudWatch | Active |
| CI/CD Pipelines | Jenkins, GitLab CI, GitHub Actions | Active |
| Containerization | Docker, Docker Compose | Active |
| Infrastructure as Code | Terraform | In Progress |
| Configuration Management | Ansible | Hands-on Experience |
| Monitoring & Alerting | Nagios, Wazuh, Syslog-NG | Production Experience |
| Scripting & Automation | Bash, PowerShell | Production Experience |
Infrastructure & Sysadmin
├── Active Directory (Users, GPO, OUs, Domain Services)
├── Linux Server Administration (Ubuntu, RHEL-based)
├── Windows Server (2016/2019 — AD DS, DNS, DHCP, File Server)
├── Virtualization (VMware ESXi, Hyper-V, Proxmox, XenCenter)
└── Network Administration (TCP/IP, DNS, DHCP, VPN, Routing)
Security Operations
├── SIEM: Wazuh (Agent deployment, rule tuning, alerting)
├── Endpoint Security: Trend Micro Apex One, Netwrix DLP
├── Firewall: FortiGate, SonicWall, pfSense — policy configuration
├── VAPT: Nessus vulnerability scanning, Nmap, Kali Linux tooling
└── Incident Response: Log analysis, event correlation, triage
DevOps & Automation
├── CI/CD: Jenkins pipelines, GitLab CI
├── IaC: Terraform (AWS resource provisioning)
├── Containers: Docker, Docker Compose
├── Config Mgmt: Ansible playbooks
└── Scripting: Bash automation, PowerShell administration
Cloud (AWS)
├── Compute: EC2 (launch, AMI, security groups, key pairs)
├── Identity: IAM (users, roles, policies, MFA)
├── Networking: VPC, subnets, route tables, NACLs
├── Storage: S3 (bucket policies, versioning, lifecycle)
└── Monitoring: CloudWatch (metrics, alarms, log groups)
| Certification | Issuer | Year |
|---|---|---|
| Certified Ethical Hacker (CEH v13) | Edureka / EC-Council | 2026 |
| Jenkins Developer | Simplilearn | 2025 |
| Git and GitHub Professional | Simplilearn | 2025 |
| Linux Fundamentals | Simplilearn | 2025 |
| Master in Network Administration | Jetking | 2020 |
| CompTIA Security+ (In Progress) | CompTIA | 2026 |
Projects aligned with Associate DevOps, Cloud, and Infrastructure roles.
| Repository | Description | Stack |
|---|---|---|
| aws-infrastructure-lab | AWS CLI v2 setup with PGP verification, IAM credential auditing, EC2/VPC/S3 labs, and structured reporting scripts | AWS, Bash, IAM |
| linux-administration-scripts | Production-grade Bash scripts for server hardening, user management, log parsing, and automated provisioning | Bash, Linux |
| nagios-monitoring | Hybrid Nagios Core setup: AWS-hosted server with NRDP passive check submission from on-prem LAN nodes | Nagios, Bash, AWS EC2 |
| gitlab-administration | GitLab self-hosted setup, CI/CD pipeline configurations, runner management, and admin playbooks | GitLab, Docker, CI/CD |
Stats widgets will populate once public repositories are pushed. Check back after repos go live.
I'm open to roles in Associate DevOps Engineering, Cloud Support, Infrastructure Engineering, and Junior SOC / SecOps positions.
- LinkedIn: linkedin.com/in/arun-k-a1b8b71b8
- Blog: ghostpingsecurity.blogspot.com
- Resume: bold.pro/my/arun-kumarv-178050
- GitHub: github.com/arun641
"Infrastructure is only as reliable as the team that automates it."