Ahmad Zakareya
Melbourne,VIC
Summary
Trusted Network Security Engineer with over 10 years experience in professional services; designing, implementing, and delivering wide ranging network security projects:
- Multiple firewall migrations
- Security policy optimization
- Data centre disaster recovery
- Network segmentation and zero-trust
- Network access control
- F5 LTM and GTM implementation
- Remote access and site-to-site VPN
Watchful professional offering comprehensive, hands-on experience identifying, investigating, and responding to network and security incidents.
Detail-oriented team player with strong organizational skills. Ability to handle multiple projects simultaneously with a high degree of accuracy.
Overview
18
18
years of professional experience
Work History
Network Security Consultant
NTT Data
05.2022 - 05.2024
- Led technical discussions with major client in Health sector to identify their requirements for complete security overhaul of their data centres and remote sites.
- Created and reviewed HLD documents for technical solutions tailored to client requirements.
- Collaborated with cross-functional teams to successfully deliver large network modernization projects with integrated technologies.
- Managed client relationships through regular meetings and updates on project progress.
Senior Network Security Engineer
NTT Data
10.2019 - 05.2022
- Coordinated with third-party vendors and security intelligence providers to maintain protections and predict threats.
- Optimized security configurations for routers, switches, and firewalls to improve overall system performance.
- Enhanced network security by designing and implementing robust security architectures.
- Delivered finished solutions complete with DLD and as-built documents.
- Managed vendor relationships, evaluating new technologies to enhance organization''s security posture continually.
- Established secure remote connectivity options for employees, enabling secure access while working remotely or traveling abroad.
- Supported incident response efforts during high-priority events, collaborating with internal teams and external partners as needed.
- Mentored junior engineers, providing guidance on best practices in network security.
- Performed network troubleshooting to isolate and diagnose common problems.
- Designed, installed and configured various network security devices and policies from several technology vendors.
Senior Network Security Engineer
Orange Business Services
07.2013 - 03.2019
- Gathered clients requirements and validated the proposed solution design with Engineering.
- Configured network devices and tested the operational solution with the clients.
- Identified and resolved technical problems that arose during the implementation of the project.
- Configured complex change requests affecting critical operational environment for clients.
- Maintained the technical documents and diagrams for the projects.
- Rolled out newly implemented services and handed over to operations, in accordance with ITIL framework.
Senior Network Engineer
Orange Business Services
06.2006 - 06.2013
- Monitored network activities to quickly detect and resolve operational and security issues.
- Configured, tested and maintained LAN/WAN components and connections.
- Streamlined troubleshooting processes by creating detailed documentation of network infrastructure, configurations, and topologies.
- Managed vendor relationships for hardware procurement, software upgrades, and technical support services to ensure optimal resource utilization.
- Oversaw company's entire network and related policies covering use, maintenance and infrastructure.
- Provided network support services for devices such as hubs, bridges, routers, and other hardware.
- Managed, tracked, and coordinated problem resolution and escalation processes.
- Collaborated with engineering to report issues, manage project deliverables and provide status reports.
- Analyzed, troubleshot and enhanced network performance to drive efficiency.
- Acquired and maintained advanced knowledge of networking protocols.
- Collaborated with teams in disaster planning, network backup and recovery process monitoring.
- Diagnosed network problems involving combination of hardware, software, power and communications issues.
- Implemented WAN and LAN designs in multi-datacenter configurations.
Education
Bachelor of Science - Computer Engineering
Ain Shams University
Cairo, EgyptSkills
- Network Security Design and implementation
- Firewall Installation, migration, and management
- Disaster Recovery Planning
- Data Centre Networking
- Load Balancing Strategies
- Network Access Control Implementation
- Problem-Solving
- Client Relationships
- Self Motivation
Timeline
Network Security Consultant
NTT Data
05.2022 - 05.2024
Senior Network Security Engineer
NTT Data
10.2019 - 05.2022
Senior Network Security Engineer
Orange Business Services
07.2013 - 03.2019
Senior Network Engineer
Orange Business Services
06.2006 - 06.2013
Bachelor of Science - Computer Engineering
Ain Shams University
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