Muhammad Bin Azhar

Cloud & Systems Engineer with 7+ years of hands-on experience managing cloud infrastructure, VPS environments, and enterprise IT systems. Skilled in Microsoft Azure, Linux/Windows server administration, DNS management, migrations, email systems, and infrastructure security. Experienced in delivering scalable, secure, and high-availability infrastructure solutions while supporting international clients and production environments.

Cloud & Systems Engineer - Codelex Digital

(2023-09 - 2026-05)

• Designed, deployed, and managed Linux & Windows cloud servers across Azure and multi-provider VPS environments
• Provisioned and optimized VPS infrastructure based on client workloads, improving performance and cost efficiency
• Administered Microsoft 365 services including Exchange Online, mailbox management, distribution groups, mail flow troubleshooting, and DNS email authentication records (SPF, DKIM, DMARC).
• Executed zero-downtime website and server migrations, including DNS cutovers, SSL configuration, and database transfers
• Configured and migrated email systems (Google Workspace, Webmail), ensuring secure delivery and minimal downtime
• Managed DNS architecture (A, MX, TXT, SPF, DKIM, DMARC) and resolved complex domain/email issues
• Implemented secure VPN solutions (OpenVPN) for remote team access
• Designed and maintained backup and disaster recovery strategies for servers, databases, and email systems
• Provided remote technical support to international clients across cloud and infrastructure environments
• Led resolution of a critical email delivery outage on a multi-tenant cPanel server (90+ websites) caused by IP reputation blocking (Cloudmark)
• Performed deep analysis of Exim mail queues and logs to identify excessive outbound traffic from WordPress-based processes
• Mitigated issue by enforcing email rate limits, cleaning mail queues, and controlling bulk email sources, restoring normal delivery across all domains
• Implemented preventive controls and monitoring improvements to stabilize mail server performance and prevent recurrence

System Administrator - Avernus Management Consultancy

(2021-11 - 2023-08)

• Installed, configured, and maintained enterprise servers and IT infrastructure ensuring high availability and performance
• Administered VMware ESXi environments including VM provisioning, snapshot management, resource allocation, and host monitoring.
• Provided first and second-level support to end users, ensuring timely resolution of technical incidents and service requests.
• Performed VMware vCenter administration and supported virtual infrastructure maintenance activities.
• Managed Hyper-V virtual machines including deployment, maintenance, performance monitoring, and host administration.
• Managed network infrastructure including routers, switches, and firewalls
• Implemented system monitoring, access control, and security policies
• Administered VoIP systems (cloud & on-prem PBX), including setup, user provisioning, and backups
• Managed email servers and communication platforms
• Deployed antivirus systems and implemented data protection and backup strategies

IT Support Engineer - Indus University

(2019-02 - 2021-10)

• Delivered Level 1, Level 2, and Level 3 IT support for hardware, software, network, user account, and infrastructure-related issues.
• Supported IT onboarding and offboarding activities, including user account provisioning, access management, and workstation deployment.
• Managed IT asset inventory and maintained accurate records of hardware and software assets.
• Utilized ticketing systems to track incidents, service requests, troubleshooting activities, and resolutions.
• Managed IT infrastructure including server rooms, proxy systems, and CCTV environments
• Installed and maintained systems to ensure continuous availability and performance
• Supported collaboration tools, video conferencing, and departmental IT operations
• Maintained service desk documentation and performance reporting

Bachelor of Computer Science - Computer Science - Iqra University