SYSTEMS ENGINEERING · ENTERPRISE INFRASTRUCTURE

Sushen Jayasuriya

Architecting enterprise systems. Virtualizing workloads. Engineering resilient infrastructure.

Systems Engineering Undergraduate specializing in Enterprise Infrastructure and IBM Power Systems. Skilled in server virtualization (Proxmox VE / VMware ESXi), Linux/AIX administration, and high-availability architecture.

ENTERPRISE DOMAINS SPECIALIZATION
ENTERPRISE SYSTEMS
IBM Power5/6 · AIX · RHEL
VIRTUALIZATION
Proxmox VE · VMware ESXi · ZFS
NETWORKING
Cisco CCNA · MikroTik OSPF · pfSense
DEVELOPMENT
Java · Firebase · EventLK · C#
01 / ABOUT ME

Designing resilient systems and delivering reliable IT operations.

Systems Engineering Undergraduate specializing in Enterprise Infrastructure and IBM Power Systems. Skilled in server virtualization, Linux/AIX system administration, and high-availability architecture.

Passionate about architecting dependable enterprise solutions, managing bare-metal hypervisor clusters, configuring multi-VLAN segmentations, and deploying automated disaster recovery pipelines with zero data loss.

// CORE COMPETENCIES & SPECIALIZATIONS

IBM Power5/6 & AIX Virtualization · Proxmox VE & VMware ESXi Clusters · ZFS Resilient Storage · Cisco Routing & Switching (CCNA) · MikroTik OSPF & pfSense Firewalls · Docker & LXC Microservices · Java Android & Firebase Realtime Sync.

02 / PILLARS

Engineering Focus

Enterprise reliability, hypervisor virtualization, and resilient network design.

01

ENTERPRISE SYSTEMS

Deploy and manage IBM Power Systems with POWER5/6 architecture, configuring AIX LPARs and RHEL server environments for high availability.

02

VIRTUALIZATION & STORAGE

Architect Proxmox VE and VMware ESXi clusters, configuring resilient ZFS storage pools, automated snapshot schedules, and disaster recovery.

03

NETWORK ENGINEERING

Implement multi-site topologies with 5+ VLANs, strict firewall rules, WireGuard/IPsec tunnels, and OSPF dynamic routing via MikroTik and pfSense.

04

SOFTWARE & CLOUD

Engineer full-stack applications in Java (EventLK) with real-time Firebase synchronization, CI/CD automation, and hybrid cloud integrations.

03 / EXPERIENCE
2024 — PRESENT // HANDS-ON EXPERIENCE ● ACTIVE INFRASTRUCTURE

Enterprise Infrastructure Implementation

Enterprise Lab Environment (Production Standards)

Architected and managed a full enterprise-grade lab environment mimicking production standards. Deployed IBM Power Systems with POWER5/6 virtualization, hosting multiple AIX LPARs for testing HA scenarios. Engineered resilient storage using Proxmox VE clusters with ZFS, ensuring zero data loss during simulated disk failures. Configured multi-site network topologies with 5+ VLANs, strict firewall rules, and OSPF routing via MikroTik/pfSense.

IBM Power5/6 AIX (UNIX) Proxmox VE ZFS Storage pfSense MikroTik (OSPF) 802.1Q VLANs RHEL / Linux
2024 — PRESENT // SOFTWARE PROJECTS ● UNIVERSITY / PERSONAL

Software Development & Automation

University & Personal Projects

Developed "EventLK," an Android application serving test users with real-time Firebase synchronization. Automated software deployment pipelines and maintained driver updates across Windows/Linux ecosystems. Collaborated with peer teams to troubleshoot C/C++ code, reducing debugging time for academic projects.

Java Android SDK Firebase Realtime DB Git & GitHub C / C++ CI/CD Automation
2023 — PRESENT // VIRTUALIZATION ● HYBRID CLOUD

Cloud & Virtualization Projects

Personal Lab & Cloud Sandbox

Built virtualized environments using VMware ESXi and Proxmox. Created cloud-like infrastructure with VM templates, snapshots, and backups. Configured containers (LXC, Docker) for development/testing use cases and integrated cloud services (AWS/GCP basics) for hybrid-lab experiments.

VMware ESXi Proxmox VE Docker LXC Containers AWS / GCP Basics PBS Backup Server
04 / FEATURED WORK

Projects & Case Studies

A look at hands-on enterprise systems, virtualization architectures, and applications.

CASE STUDY // 01 (ENTERPRISE SYSTEMS)

IBM Power Systems Virtualization & Resilient ZFS Cluster

What it is: A multi-node enterprise infrastructure lab environment mimicking corporate datacenter operations with UNIX workloads and redundant storage.

What I did: Virtualized IBM Power5/6 servers hosting multiple AIX LPARs for high availability testing. Configured clustered Proxmox VE nodes with ZFS mirroring, ensuring zero data loss during simulated disk failures. Established multi-VLAN segmentation with pfSense and MikroTik OSPF routing.

Outcome: Validated high-availability failovers and zero-data-loss storage recovery protocols under simulated production load.

IBM Power5/6 · AIX · Proxmox VE · ZFS · MikroTik · pfSense
Enterprise Infrastructure & High Availability
AIX LPARs, ZFS Resiliency, OSPF Routing
CASE STUDY // 02 (SOFTWARE DEVELOPMENT)

EventLK — Real-Time Android Event Platform

What it is: A full-stack mobile event platform developed in Java and Android SDK with live Firebase backend synchronization.

What I did: Engineered the Android mobile application, integrated Firebase Real-Time Database for seamless multi-user synchronization, implemented user authentication, and managed automated build delivery.

Outcome: Successfully deployed to test users with real-time cloud data consistency and responsive UI performance.

Java · Android SDK · Firebase Realtime DB · Git
Mobile App & Cloud Database Engineering
Real-Time State Sync, User Auth, Mobile Architecture
CASE STUDY // 03 (VIRTUALIZATION & CLOUD)

Multi-Hypervisor Cloud Virtualization Lab

What it is: A hybrid virtualization testing lab integrating VMware ESXi, Proxmox VE, and containerized microservices with cloud connections.

What I did: Configured ESXi and Proxmox hypervisors, established automated VM template deployments and snapshot schedules, and deployed Docker and LXC containers for rapid test environments.

Outcome: Established a flexible, rapid-provisioning testbed with hybrid cloud integration for AWS and GCP experiments.

VMware ESXi · Proxmox VE · Docker · LXC · AWS/GCP
Virtualization & Hybrid Cloud
VM Templates, Container Workflows, Backup Policies
05 / PERSONAL HOMELAB

"I don't only learn infrastructure from documentation. I experiment with it."

Running a physical 3-node Dell PowerEdge homelab gives me hands-on experience with hardware troubleshooting, hypervisor clustering, network segmentation, and backup schedules outside of production environments.

Dell PowerEdge R320 (Proxmox VE)

Compute virtualization node running Proxmox VE, hosting test VMs, LXC containers, and self-hosted utilities.

Dell PowerEdge R310 (PBS)

Dedicated Proxmox Backup Server testing deduplication, incremental snapshot backups, and recovery testing.

Dell PowerEdge R210 (pfSense)

Edge firewall and routing node managing multi-VLAN segmentation, WireGuard tunnels, and firewall rules.

Explore the Homelab Tour & Architecture Diagram
06 / TECHNICAL STACK

Technical Foundations

A transparent view of tools and technologies I have worked with or am actively learning.

DEVOPS & CI/CD
ArgoCD (GitOps) Docker (Hands-on) Jenkins (Hands-on) Git (Working knowledge) GitHub Actions (Hands-on) Ansible (Hands-on)
CLOUD & SYSTEMS
Linux (Ubuntu / RHEL) (Hands-on) Google Cloud (Working with) Bash Scripting (Hands-on)
PLATFORMS & AUTH
ThingsBoard (Deployment / Customization) Keycloak (Auth Integration)
ORCHESTRATION
Kubernetes (Hands-on / Learning) Proxmox VE (Hands-on) LXC Containers (Hands-on)
NETWORKING
Cisco (CCNA Foundation) pfSense (Hands-on) MikroTik (Hands-on) WireGuard VPN (Hands-on) VLANs (Hands-on)
OBSERVABILITY
Prometheus (Hands-on) Grafana (Hands-on) Uptime Kuma (Hands-on)
DEVELOPMENT
Java (Foundation) JavaScript (Working knowledge) Firebase (Hands-on)
07 / JOURNEY

Career & Education

Chronological timeline of professional experience, university studies, and certifications.

NOW // PRESENT

DevOps Intern

UTECH Sri Lanka

Gaining real-world experience supporting DevOps workflows, CI/CD pipeline automation, Docker containerization, Linux systems, ThingsBoard, and Keycloak integrations.

2022 — 2026

BSc (Hons) Computer Science & Network Engineering

SLIIT City University

Academic studies focused on computer networks, distributed systems, operating system concepts, and software engineering.

2025

CCNA — Cisco Certified Network Associate

TurnKey IT Campus

Training covering IP routing protocols, switching architectures, VLAN configurations, subnetting, and network security foundations.

2024

Certificate in DevOps

NetXperts

Practical coursework covering Docker containerization, continuous integration workflows, and deployment automation concepts.

2025

Certificate in Java Programming

Informatics Institute of Technology (IIT)

Object-oriented programming, data structures, algorithms, and application development fundamentals.

08 / EXPLORING

Currently Exploring

Technologies and concepts I am actively diving into as I develop my skills.

[EXPLORING]

Kubernetes & Cloud Native

Learning Kubernetes deployments, service networking, config maps, ingress controllers, and Helm charts.

[BUILDING]

CI/CD & Automation Workflows

Writing Ansible playbooks and exploring GitOps patterns for repeatable infrastructure and application deployments.

[LEARNING]

Cloud-Native Observability

Experimenting with Prometheus metric exporters, PromQL queries, and high-fidelity Grafana monitoring dashboards.

[STUDYING]

Platform & SRE Principles

Studying site reliability engineering fundamentals, incident post-mortems, and building resilient systems.

09 / RESOURCES

Downloads & Files

Official documents, verified CV, and source code repositories.

/cv/Sushen_Jayasuriya_CV.pdf

Curriculum Vitae

Official CV detailing Enterprise Infrastructure specialization, IBM Power Systems, CCNA certification, SLIIT degree, and references.

Download CV (PDF)
/lab (Command Center)

Interactive Homelab Center

Interactive 3-node Dell PowerEdge server rack, pfSense multi-VLAN topology map, and live CLI console.

Explore /lab
/repositories/github/sushenjayasuriya

GitHub Repositories

Source code repositories for applications (EventLK), automation playbooks, and homelab configurations.

View GitHub
10 / CONTACT

Let's Connect

Available for Enterprise Systems, Virtualization, and Network Engineering opportunities.

sushen@node: ~/connect
sushen@node:~$ ./connect --with=sushen
Email: sushenjayasuriya@gmail.com
Phone: 074 3735 771
Web: sushenjayasuriya.org.lk
Location: Negombo, Sri Lanka
visitor@devops:~$

Send a Message

Feel free to reach out regarding Enterprise Systems opportunities, collaboration, or technical discussions.