Network & Systems Engineer
99%+ Uptime, <15min RTO

Proxmox VE pfSense IBM Power5/550 SAN + LTO Tape

I run a 3-node home data center on Dell PowerEdge with Proxmox VE, PBS, and pfSense firewalling 30+ devices. Hands-on with enterprise hardware. Building towards SRE/Platform Engineering.


View Lab Tour Download CV

About Me

I'm an Infrastructure Engineer running a production-grade home data center. My lab simulates enterprise environments on Dell PowerEdge R320/R310/R210 with Proxmox VE clustering, dedicated Proxmox Backup Server, and pfSense firewall.

I have hands-on experience with IBM Power5/550 systems, IBM SAN storage, and LTO tape loaders. I run quarterly disaster recovery tests with <15min RTO and maintain 99.2% uptime tracked via Uptime Kuma.

Currently learning Ansible for infrastructure automation. Open to Network Engineer, SRE, and Platform Engineer roles in Colombo/Remote. I don't just study systems — I operate them 24/7.

Sushen's home data center rack with Dell PowerEdge and IBM Power servers

Tech Stack

Virtualization & High Availability

Production clustering, backups, and container orchestration.

Proxmox VE Proxmox Backup Server VMware ESXi LXC Containers Docker ZFS 99% Uptime

Enterprise Hardware & Storage

Hands-on with server, storage, and backup infrastructure.

Dell PowerEdge R320/R310/R210 IBM Power5/550 IBM System x/p IBM SAN LTO Tape RAID Config <15min RTO

Networking & Security

Firewall, routing, VPN, and intrusion detection for 30+ devices.

pfSense MikroTik Cisco CCNA VLANs WireGuard VPN HAProxy Suricata IDS

Systems & Monitoring

Linux/AIX administration and observability stack.

IBM AIX (LPARs, VIOS) RHEL/Ubuntu Windows Server AD Grafana Prometheus Zabbix Uptime Kuma

8.7/10 Enterprise Home Lab

3-Node Proxmox Cluster

Core: Dell R320 (Proxmox VE) + R310 (PBS) + R210 (pfSense). Hosts 12+ VMs/LXCs including self-hosted Ollama, LibreSpeed, Pi-hole. 99.2% uptime last 90 days. Quarterly DR tests with <15min RTO using LTO tape.

Proxmox VE PBS pfSense ZFS HA

Full Lab Tour + Diagram

IBM Power + SAN Environment

Hands-on with IBM Power5/550 running AIX. Configured LPARs, VIOS, and NIM. Integrated with IBM SAN storage and LTO tape loaders for enterprise backup workflows. Used for testing legacy app migration.

IBM AIX LPARs VIOS SAN Zoning LTO Tape

EventHub — Android App

Event management app with Firebase real-time data, user auth, and XML UI. Built in Android Studio with Java. Demonstrates full-stack mobile development.

Android Java Firebase

Downloads & Resources

Curriculum Vitae

Network & Systems Engineer CV with metrics: 99% uptime, <15min RTO, IBM Power + Proxmox + pfSense. Updated Oct 2026.

Download CV

Lab Network Diagram

Full draw.io diagram of 3-node cluster: R320/R310/R210, VLANs, pfSense, IBM Power, SAN, LTO. Edit it yourself.

Download .drawio

GitHub Profile

Source code for EventHub, Rainfall Monitor, and homelab configs. Includes Proxmox + pfSense Ansible playbooks (WIP).

View GitHub

Education & Certs

2022 - 2026

BSc (Hons) Computer Science & Network Engineering

SLIIT City University

2025

CCNA — Cisco Certified Network Associate

TurnKey IT Campus

2024

Certificate in DevOps

NetXperts

2025

Certificate in Java Programming

Informatics Institute of Technology

Contact Me

Open to Network Engineer, SRE, and Platform Engineer roles in Colombo/Remote. Let's talk about Proxmox, IBM Power, or your infrastructure.

Emailsushenjayasuriya@gmail.com
Phone074 373 5771
LinkedInsushen-jayasuriya
LocationNegombo, Sri Lanka | Remote

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