Hannan J

EDUCATION

B.Eng. Electrical Telecommunication, COMSATS University, Lahore, Pakistan (Feb 2013 - Jun 2017)

WORK EXPERIENCE

Principal VOIP Engineer @ CureMD, Lahore, Pakistan (Jan 2023 – Present)

• Redesign AWS infrastructure for high availability and cost reduction.
• Manage AWS infrastructure including IAM, AMIs, snapshots, network routing, ACLs, security groups, log management, and storage in S3 buckets.
• Monitor and manage AWS monthly billing.
• Create scripts to convert JSON logs into an Excel-readable format, eliminating the need for paid AWS services.
• Manage Lake House machines and architectural design for high availability.
• Upgrade legacy Linux machines and fix security vulnerabilities.
• Configure and deploy a faxing system using HylaFAX and IAX modems.

Senior Network Engineer VOIP/NOC @ Systems Limited, Lahore, Pakistan (July 2019 – June 2022)

• Evaluated new technologies for potential application to operational requirements and company mission.
• Designed optimal technical solutions considering customer environment, requirements, and budget.
• Worked on TCP/IP, routing, ACLs, VTP, STP, DHCP, VPN, and VLAN configuration.
• Troubleshot all Layer 1 and Layer 2 issues.
• Managed firewalls to secure the network.
• Ensured quality system design with strong performance, effective interfaces, cost efficiency, and scalability.
• Collaborated with project managers and stakeholders to manage evolving VoIP product roadmaps.
• Oversaw architectural decisions and enforced VoIP best practices.
• Mentored team members and provided regular feedback.
• Coordinated with other departments for network health monitoring and capacity planning.

Network Engineer @ Systems Limited, Lahore, Pakistan (Dec 2017 – July 2019)

• Worked on L1 network troubleshooting (managing ports, PoE switches, endpoint connectivity, and static routing).
• Configured VoIP phones, created new VoIP extensions, and performed daily troubleshooting.
• Troubleshot user IDs and machines through Active Directory.
• Handled MAC binding in DHCP.
• Managed Jira/ManageEngine tickets and provided on-site and client support.
• Managed in-house hosted VMs.

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