14+ Years of Experience

Cloud, Infrastructure
& VoIP Excellence

Enterprise architect specializing in scalable cloud infrastructure, virtualization, disaster recovery, and advanced VoIP telecommunications systems.

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Deepu Raj Devarajan

Core Technical Expertise

Specialized skills in cloud platforms, virtualization, VoIP systems, and enterprise infrastructure management

☁️ Cloud Infrastructure

  • Microsoft Azure (IaaS/PaaS)
  • Virtual Networks & Security
  • Load Balancing & Storage
  • Backup & Disaster Recovery
  • Cost Optimization

🖥️ Virtualization Platforms

  • Hyper-V Failover Clustering
  • VMware vSphere/ESXi
  • High Availability & DRS
  • Live Migration
  • XCP-ng

📞 VoIP & Telephony

  • Asterisk PBX Design & Implementation
  • SIP Trunking & IP PBX Configuration
  • Call Centers (ACD, IVR, Recording)
  • VoIP QoS & Network Optimization
  • High Availability VoIP Systems

🖧 Server Administration

  • Windows Server 2019/2022
  • Linux (RHEL/CentOS)
  • Active Directory & DNS
  • Patch Management
  • Performance Tuning

🔒 Security & Recovery

  • Disaster Recovery Planning
  • RTO/RPO Management
  • SSL/TLS Certificates
  • Firewall Management
  • Network Security

🗄️ Database Administration

  • Microsoft SQL Server
  • MySQL & MariaDB
  • Azure Databases
  • Backup & Recovery
  • Query Optimization

Professional Journey

Delivering enterprise-scale infrastructure and VoIP solutions across global organizations

City Doctor Healthcare

IT Specialist
April 2025 - Present
  • Manage enterprise IT infrastructure across multiple clinic locations ensuring 99.9% availability
  • Design and implement backup/disaster recovery frameworks utilizing cloud and on-premises solutions
  • Monitor and optimize infrastructure performance across distributed facilities
  • Manage system patching, security compliance, and operational stability

Phykon Solutions

Infrastructure Operations Lead
Nov 2022 - July 2024
  • Architected enterprise VMware infrastructure supporting 300+ concurrent users with HA/DRS
  • Managed AWS infrastructure and reduced costs by 30% through optimization
  • Designed comprehensive backup and disaster recovery with quarterly testing
  • Reduced IT services costs by 35% through vendor negotiations

Deepija Telecom

Senior Infrastructure & VoIP Engineer
Feb 2019 - Nov 2022
  • Designed and deployed high-availability Asterisk PBX infrastructure supporting 200+ concurrent agents
  • Architected disaster recovery strategy with documented RTO/RPO compliance for VoIP systems
  • Implemented SIP trunking, IVR, ACD systems, and call recording for contact centers
  • Optimized VoIP network QoS and performance monitoring for call quality

INDMAX IT Services

Senior Engineer - IT Infrastructure
Nov 2014 - Jan 2019
  • Led enterprise cloud integration and virtualization deployment initiatives
  • Managed IT service management with ticketing and incident response
  • Ensured SLA compliance and operational excellence across projects

Key Achievements

Delivering measurable results and enterprise-scale solutions

⚡

Enterprise Scale

Managed infrastructure supporting 300+ concurrent users with 99.5%+ uptime. Scaled systems 6x without service degradation.

📞

VoIP Excellence

Designed high-availability Asterisk PBX supporting 200+ concurrent agents with redundant trunking and 99%+ system availability.

🔄

High Availability

Implemented redundant clustering and failover mechanisms achieving 99%+ availability across enterprise environments.

💰

Cost Optimization

Reduced infrastructure costs by 35% through resource optimization, vendor negotiation, and strategic planning.

☁️

Cloud Migration

Executed zero-downtime migration of 100+ users to cloud infrastructure with zero data loss.

🌍

Global Infrastructure

Managed hybrid infrastructure combining on-premises virtualization with cloud across multiple regions.

Professional Certifications

Industry-recognized credentials validating expertise and commitment

🔴
RHCSA Red Hat Systems Administrator
🔴
RHCE Red Hat Certified Engineer
🔴
RHCVA Red Hat Virtualization Admin
🔵
MCITP Microsoft Certified IT Pro
🟠
CCNA Cisco Network Associate
🔵
Exchange Exchange Server Specialist

Let's Create Something Great

Ready to build robust infrastructure and VoIP solutions? Let's connect and explore opportunities.

📱 Phone +971 566993450
📧 Email itsdeepurajd@gmail.com
📍 Location

Dubai, UAE

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