Hi, I'mSajjad Iqbal.
5+ years engineering reliable database, cloud and identity infrastructure across Telecom, Banking, Healthcare and IT consulting.
Building resilient infrastructure for mission-critical systems.
Results-driven Database Administrator and IT Solutions Architect with 5+ years of hands-on experience managing complex on-premise, cloud and hybrid environments. AWS Certified Solutions Architect with proven expertise across Oracle, MySQL and SQL Server, and a track record of delivering Microsoft 365 administration, identity migrations, healthcare PACS infrastructure and end-to-end DevOps automation for global clients.
Database Mastery
Oracle, MySQL, SQL Server — performance tuning, RAC, DataGuard, replication, recovery and HA.
Cloud & DevOps
AWS Solutions Architect designing scalable, secure infrastructure with Docker, Kubernetes and CI/CD.
Microsoft 365 / IT
Exchange, Entra ID, Intune, DLP and HIPAA-aligned policies for international SMB and clinical clients.
Healthcare / PACS
Built knovelPACS — a full-stack DICOM imaging platform deployed via Cloudflare Tunnel.
Production wins that mattered.
Reduced a critical Maximo scheduler job from 3 hours to seconds at PTCL via query tuning
Migrated Oracle 11g → 19c using GoldenGate 12c with zero production downtime
Converted single-instance database to 2-node RAC cluster with shared ASM at PTCL
Successfully switched primary database to Karachi DR for ILPTCL during full DR drill
Built and shipped a HIPAA-friendly PACS platform exposed publicly via Cloudflare Tunnel
Migrated organizations from on-prem Active Directory to Microsoft Entra ID with zero data loss
A track record of production wins.
From hospital systems to national telecom — five years engineering databases that have to stay up.
Executive DBA
Pakistan Telecommunication Company Limited (PTCL)
Managing mission-critical Oracle, MySQL and SQL Server estates for Pakistan's largest telecom operator.
- Tuned Maximo DB scheduler — reduced a 3-hour job to seconds via query optimization
- Converted single-instance to 2-node RAC cluster (ccsdbnew) with shared ASM and srvctl registration
- DataGuard setup for 2-Node RAC + successful DR drill switching primary to Karachi DR (ILPTCL)
- OID + EUS configuration for centralized SSO across multiple databases
- Configured 3-node InnoDB cluster, MySQL replication, TDE, SSL and slow-query analysis
- Implemented Always On Availability Groups, Log Shipping and Mirroring on SQL Server 2019
Microsoft 365 / IT Solutions Engineer
Teknik Business Consulting Group (Clients: DEWC, Knovel Health, Marlos IT)
Designing and operating Microsoft 365, identity, security and PACS infrastructure for international clinical and IT-services clients.
- Built and deployed knovelPACS — a full-stack medical imaging platform (Next.js + MySQL + Orthanc DICOM) exposed securely via Cloudflare Tunnel
- Migrated organizations from local Active Directory to Microsoft Entra ID with zero data loss
- Authored DLP policies aligned with HIPAA for protected health information across Exchange Online and SharePoint
- GoDaddy → Microsoft 365 defederation and DNS cutovers with zero mailflow downtime
- Microsoft Intune device management, Conditional Access and compliance baselines
- Cynet endpoint security deployment, monitoring and incident response
- Automated network drive mapping, password reset workflows and onboarding/offboarding SOPs
Database Administrator
Armed Forces Institute of Cardiology (AFIC/NIHD)
Owned the entire database lifecycle for one of Pakistan's largest cardiac care institutions.
- Manual upgrade of Oracle 11g → 19c, including Non-CDB to PDB transformation
- Standby database creation and DataGuard configuration for HA
- Deployed and managed Oracle Enterprise Manager (OEM) 13c with real-time monitoring
- Oracle GoldenGate 12c-based 11g → 19c upgrade with zero downtime
- ESXi 6.5 installation, VM provisioning and infrastructure management
- WebLogic 11g/12c installation and management on Windows Server 2022
Database Support Officer / DBA
MCB Bank Limited
Provided 24x7 production database support for one of Pakistan's leading commercial banks.
- Performance monitoring with AWR, ADDM and SQL Tuning Advisor
- Configured and managed physical standby databases — switchover, failover, snapshot standby
- RMAN-based recovery: dropped tables, datafiles, control files and corrupted blocks
- Roll-forward of physical standby using RMAN incremental backup
- ASM administration — disk groups, partitions, RAC physical standby (2-node)
- Patch application across primary and DataGuard environments
- Shell scripting for automated database jobs and monitoring
Assistant Database Administrator
WorldLinks
Designed and managed hospital database systems serving multiple healthcare facilities.
- Designed Hospital Information Systems used across multiple small hospitals
- Installed and managed Oracle 11G / 12C / 19C environments
- Worked with Pluggable Databases (PDBs) and CDB architecture
- VMware setup and server configuration
Built for healthcare.
Battle-tested in production.
knovelPACS — Medical Imaging Platform
Production-grade medical imaging infrastructure deployed across multiple clinics. Combines a Next.js / React 19 portal, a Node bridge, Orthanc DICOM server (port 104) and MySQL 8 — all running on Windows Server with public HTTPS access via Cloudflare Tunnel. No inbound ports, edge TLS termination, repeatable per-site deployment runbook.
- Authored repeatable production deployment runbook (cloudflared 2026.3.0, Windows Server 2019)
- DICOM modality support (port 104) for radiology equipment integration
- Edge-terminated HTTPS with zero exposed inbound ports — HIPAA-friendly
- Multi-site rollout: staging + per-clinic production tunnels
- Service-based stack: knovelPACS, knovelPACS-Bridge, knovelPACS-Portal, MySQL80
INTERNET
│
▼
┌──────────────────┐
│ CLOUDFLARE │
│ Edge + TLS │
└────────┬─────────┘
│ outbound QUIC
▼
┌─────────────────────────────┐
│ knovelPACS Server │
│ ┌─────────────────────────┐ │
│ │ Portal (Next.js :3000) │ │
│ ├─────────────────────────┤ │
│ │ Bridge (Node) │ │
│ ├─────────────────────────┤ │
│ │ Orthanc DICOM (:104) │ │
│ ├─────────────────────────┤ │
│ │ MySQL 8 (:3306) │ │
│ └─────────────────────────┘ │
└─────────────────────────────┘The systems I administer daily.
Production-grade administration across every major relational, NoSQL and Microsoft cloud platform — battle-tested in telecom, banking and healthcare.
Microsoft 365 Admin Center
Admin Center
Exchange Online · Entra ID · Intune · DLP · SharePoint
Oracle Database
OCP track
11g · 12c · 19c · RAC · DataGuard · GoldenGate
MySQL
Oracle Certified
InnoDB Cluster · Replication · TDE · Performance Schema
Microsoft SQL Server
Production
2019 · Always On AGs · Log Shipping · TDE · Mirroring
PostgreSQL
Cloud-native
RDS · WAL streaming · pg_dump · logical replication
MongoDB
NoSQL
Replica sets · Sharded clusters · Atlas · aggregation
Tools I use to ship at scale.
Databases
Cloud (AWS)
Microsoft 365 & Identity
DevOps & CI/CD
Oracle Stack
HA & DR
Healthcare / PACS
Operating Systems
Industry-recognized credentials.
Open-source work.
knovelPACS — Medical Imaging Platform
Full-stack PACS (Picture Archiving and Communication System) for clinics — Next.js portal, Orthanc DICOM, MySQL 8 — exposed securely via Cloudflare Tunnel with zero open ports.
Oracle 19c Installation
End-to-end installation guide and automation for Oracle Database 19c on Linux, including silent install via response file.
GoldenGate Scripts
Curated Oracle GoldenGate 12c scripts for replication, monitoring and 11g → 19c zero-downtime upgrades.
Jenkins Java Pipeline
CI/CD pipeline reference project demonstrating Jenkins build, test and deploy stages for a Java application.
Jenkins Installation
Shell-script based Jenkins installation and bootstrap for Linux servers — reproducible DevOps setup.
Git Concepts
Comprehensive reference covering Git workflows, branching strategies and team collaboration patterns.
Let's build something solid.
Open to full-time roles, remote positions and consulting engagements in DBA, Cloud, Microsoft 365 and DevOps.