Available for opportunities

Vinuk
Rathnayake

// Database Administrator · Data Engineer · Automation Enthusiast

Managing enterprise MS SQL Server & Oracle environments across multi-client production infrastructures. Bridging DBA expertise into Data Engineering via Azure & AWS cloud certifications. Recognized with the US Award 2025 for the Kmart–Target DC Consolidation.

99.9% SLA Uptime

Yrs Experience

10+ Live Projects

Get in touch ↗ View projects

vinuk.json

// profile.json — last updated 2026
{
  "name": "Vinuk Rathnayake",
  "location": "Colombo, LK",
  "role": "DBA → Data Engineer",
  "stack": [
    "MS SQL Server 2016-2022",
    "Oracle 11g-19c",
    "Python", "PowerShell",
    "Bash", "Azure", "AWS"
  ],
  "ha_architecture": true,
  "uptime_sla": "99.9%",
  "award": "US Award 2025",
  "mba": "Fintech & Data Analytics",
  "seeking": "Data Eng / Senior DBA"
}

02 · Technical Stack

Skills & Technologies

🗄️

Database Administration

MS SQL Server 2016–2022 Oracle 11g–19c MySQL AlwaysOn AG Query Optimization Backup & Recovery

☁️

Cloud Platforms

Microsoft Azure AWS Microsoft 365 Entra ID Intune RHEL

⚙️

Automation & Scripting

Python PowerShell Bash T-SQL Podman Process Automation

📡

Monitoring & Observability

SolarWinds Nagios Oracle OEM Alerting RCA Incident Mgmt

🏗️

High Availability & DR

AlwaysOn AG Failover Clustering Disaster Recovery Replication Log Shipping

📋

Frameworks & Methodology

ITIL / ITSM Service Desk Ops Change Management SLA Governance Knowledge Mgmt

03 · Career History

Work Experience

Junior Database Administrator

Cube Networks — Sri Lanka

Nov 2024 – Present

Led migration from standalone SQL Server to SQL Server 2022 AlwaysOn Availability Groups, improving resilience and failover capability across production workloads
Maintained 99.9%+ SLA uptime across mission-critical MSSQL and Oracle databases for multi-client environments
Reduced transaction log growth by 50% through backup optimization, workload analysis, and targeted tuning
Automated database housekeeping tasks across Oracle and MSSQL using Python and PowerShell scripts
Utilized SolarWinds, Nagios, and Oracle OEM for proactive monitoring; conducted RCA to eliminate recurring incidents

⭐ US Award 2025 — Kmart–Target DC Consolidation

Cloud Support Engineer

The British School in Colombo — Sri Lanka

May 2024 – Nov 2024

Administered Microsoft 365, Intune, Entra ID, and Google Workspace for 1,400+ students and staff
Improved device compliance and identity governance posture by ~40% through structured policy enforcement
Reduced account provisioning time by 60% via PowerShell and batch automation scripts
Deployed Xibo CMS digital signage platform on RHEL using Podman containers — eliminated manual updates across 5 locations (99% overhead reduction)

Infrastructure Analyst — Oracle DBA

HCL Technologies Sri Lanka

Mar 2022 – May 2024

Administered Oracle production databases within a global managed services model — 99.9%+ availability under strict SLA governance
Achieved 95% first-call resolution rate for database incidents and service requests
Earned 80%+ quarterly performance ratings in a competitive enterprise evaluation framework
Designed a centralized knowledge base improving team troubleshooting efficiency by ~30%

Project Management & IT Infrastructure

Audissey Custom AV Solutions — Sri Lanka

Dec 2020 – Nov 2021

Managed and maintained internal IT systems ensuring uninterrupted business operations across a leading custom AV engineering firm
Assisted in installation, configuration, and commissioning of state-of-the-art audiovisual systems for commercial and non-commercial clients
Acted as client-facing technical liaison — resolving installation challenges and coordinating project timelines for on-time delivery
Reduced recurring technical issues by implementing standardized configuration procedures

04 · Portfolio

Featured Projects

PROJECT_01

Kmart–Target DC Consolidation

Led critical database migrations as part of a large-scale retail data center consolidation for two major global brands. Leveraged ITIL compliance and critical thinking to ensure data integrity and system availability throughout high-stakes transitions. Recognized with the US Award 2025 by Cube Networks for this contribution.

PROJECT_02

SQL Server AlwaysOn HA Migration

Designed and executed migration of application databases from standalone SQL Server environments to SQL Server 2022 Always On Availability Groups. Includes pre-flight validation scripts, failover testing runbooks, and rollback procedures — maintaining 99.9%+ SLA throughout transition.

PROJECT_05

Xibo CMS Digital Signage Platform

Deployed a centralized digital signage platform on Red Hat Enterprise Linux using containerized Podman services with a MySQL backend. Enabled real-time content broadcasting across 10+ campus displays at The British School in Colombo — eliminating manual updates across 5 campus locations (99% overhead reduction).

PROJECT_06

Azure Data Pipeline — DP-700 Study

End-to-end Azure data engineering pipeline built as part of DP-700 certification preparation. Ingests raw data via Azure Data Factory, applies transformations in Azure Synapse Analytics, and loads to Azure SQL for downstream reporting. Mirrors real-world enterprise data engineering patterns.

05 · Credentials

Certifications & Education

Amazon Web Services

AWS Certified Cloud Practitioner

CLF-C01 Earned

Kingston University

BSc (Hons) Computing Science — Network Security

Jan 2025 – Jan 2026 Earned

Cardiff Metropolitan University

Higher National Diploma — Network Technology & Cyber Security

Sep 2022 – Sep 2024 Earned

Anglia Ruskin University

MBA — Fintech & Data Analytics

Apr 2026 – Apr 2027 In Progress

Microsoft Azure

Azure Database Administrator Associate

DP-300 In Progress