Eng Thona
Active
Infrastructure Systems: 100% Operational

Eng Thona

Senior System & Infrastructure Administrator

Designing resilient, high-availability virtualization clusters, storage fabrics, and zero-trust networking platforms for financial institutions.

Production Uptime:99.9%
RPO (Recovery Point):< 15 Mins
Data Loss Incidents:0.00%
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Senior System & Infrastructure Administrator with 5+ years of experience in financial-grade server, virtualization, storage, and network infrastructure (VMware, Proxmox, Windows Server, Active Directory, Oracle ZFS ZS3). Proven track record in high-availability environments, zero unplanned downtime migrations, disaster recovery, and system security (hardening, patch management, MFA). Experienced in developing AI-powered automated reporting systems for compliance audits.

5+
Years of Systems & Infrastructure Experience
100%
Data Integrity & Zero Unplanned Downtime
40+
Enterprise VMs Migrated to Proxmox VE
99.9%
Maintained Infrastructure Uptime
01

Technical Skills

Systems & Applications

  • Windows Server
  • Active Directory
  • Group Policy
  • DNS
  • DHCP
  • Microsoft 365 Administration
  • Zabbix
  • SolarWinds
  • Bash & PowerShell scripting

Virtualization & Platforms

  • VMware ESXi & vCenter (Install, Configure, Manage)
  • Proxmox VE & Cluster Management
  • Live VM Migration (ESXi to Proxmox)
  • Windows Server
  • Linux (Red Hat & Kali Linux)

Networking & Security

  • Cisco Nexus/Catalyst
  • Oracle ES1 (SEFOS)
  • FortiGate (NGFW & Policy Management)
  • VLAN Design
  • LACP
  • Multi-subnet Routing
  • Site-to-Site & Remote VPN
  • Kaspersky Security Center
  • Cisco Duo MFA
  • Bitwarden
  • System Hardening & Patch Management

Storage & Backup

  • Oracle ZFS Storage Appliance (ZS3)
  • QNAP NAS
  • NFS
  • SMB
  • Veeam Backup & Replication
  • Veritas
  • Disaster Recovery Planning
02

Experience

Internal Movement / Group Transfer (Oct 2021 — Present)

Progression:System & Infrastructure Administrator → Senior System & Infrastructure Administrator

May 2026 — Present

Senior System & Infrastructure Administrator at LSPD Microfinance Plc.

  • Administered Windows Server, Active Directory, Group Policy, DNS, DHCP, and Microsoft 365, including user, license, mailbox, and access management.
  • Architected and deployed high-availability core banking server infrastructure.
  • Planned and executed data center network high-availability migration across Cisco, Oracle ES1, FortiGate, and VMware infrastructure.
  • Designed secure network architecture using NGFW and VLAN segmentation.
  • Managed VMware ESXi integrated with Oracle ZFS Storage Appliance.
  • Developed Disaster Recovery, backup, and snapshot strategies using Veeam.
  • Investigated and resolved infrastructure and security incidents while maintaining system hardening and patch compliance.
  • Core Banking
  • VMware ESXi
  • Oracle ZFS
  • Cisco
  • Oracle ES1
  • FortiGate NGFW
  • Veeam DR
  • Patch Compliance
Oct 2021 — May 2026

System and Infrastructure Administrator at Ly Hour Pay Pro Plc.

  • Managed Windows Server, Active Directory, Group Policy, DNS, DHCP, and Microsoft 365 environments.
  • Orchestrated live migration of 40+ enterprise VMs from VMware vSphere/ESXi to Proxmox VE with zero unplanned downtime.
  • Managed Oracle ZFS Storage Appliance and QNAP enterprise storage.
  • Maintained FortiGate/WatchGuard firewall policies, Site-to-Site/Remote Access VPNs, and network security.
  • Configured Cisco Nexus/Catalyst switching, VLANs, LACP, and multi-subnet routing.
  • Managed endpoint security using Kaspersky Security Center.
  • Supported Disaster Recovery, backup, system hardening, patch management, and infrastructure monitoring.
  • Proxmox VE
  • VMware ESXi
  • Live VM Migration
  • Cisco Catalyst/Nexus
  • QNAP NAS
  • Kaspersky Security
  • FortiGate

// Disaster Recovery Datapath

Compute Environment
Enterprise Nodes:
VMware / Proxmox VE
ZFS Core▼
Primary Storage
Oracle ZFS (ZS3) &
QNAP Enterprise NAS
Backup Sync▼
Secondary Site
Disaster Recovery
Site (DRS)
03

AI Case Study: Intelligent Reporting

Designed and deployed a secure, automated data extraction pipeline mapping core banking transactional flows. Integrated anomaly detection models to optimize internal audit cycles.

85%

Manual Reporting Overhead Reduced

100%

Audit Compliance & Zero Prod Impact

// Core Banking Extraction & AI Audit Pipeline
Hover or tap nodes to inspect specs
[DB Node]

Core Banking DBs (Oracle / PostgreSQL)

Read-Only Replica
Hourly read-only replica transaction extraction with zero impact on production banking transactions.
Secure Hourly Log Stream / TLS▼
[Pipeline Node]

FastAPI Ingestion & Anomaly Detection Model

Isolation Forest + Schema Check
Data sanitization, schema anomaly mapping, and prompt-driven classification.
Docker Container / Celery Workers▼
[Audit Node]

Automated BI Dashboard & Audit Reports

85% Overhead Reduction
Real-time compliance verification reducing manual audit overhead by 85%.
Oracle / PostgreSQLPythonFastAPICelery WorkersDockerTLS 1.3 StreamAutomated BI Audit
04

Credentials

Education

Bachelor of Computer Science

Build Bright University (BBU)

2020 – 2024

Certifications

Verify

Sunrise Institute of Technology

May 2023

Achievements

  • Data Center Relocation: Successfully orchestrated full physical-to-virtual data center migration with zero unplanned downtime and 100% data integrity.
  • Performance Optimization: Improved network performance through comprehensive VLAN redesign and firewall optimization.
  • Reliability: Increased server uptime through proactive monitoring and structured backup planning.
  • Collaboration: Recognized for fast issue resolution and strong teamwork in high-pressure environments.
05

Endorsements & References

“Thona demonstrates high-caliber technical execution across core banking infrastructure, high-availability data center networking, and enterprise security. A reliable engineer who consistently maintains zero-downtime reliability.”

AC

Mr. Am Chumno

Head of IT Department · LSPD Microfinance Plc.

(+855) 10 471 674

“Thona played a pivotal role in our infrastructure operations, notably executing the live migration of 40+ enterprise virtual machines to Proxmox VE and managing enterprise storage with zero unplanned service disruption.”

HS

Mr. Hor Saphy

Acting Head of IT Department · Ly Hour Pay Pro Plc.

(+855) 99 601 111
06

Get in Touch

bash - thona@cluster-node-1

Looking for a reliable administrator to keep your infrastructure secure and highly available? I'm open to new opportunities and collaborations.

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Designed & built by Eng Thona · 2026