ABDULRAHMAN ASIRI

[email protected] • +967776457052 • Yemen-Aden

PROFESSIONAL SUMMARY

Experienced network security engineer with extensive expertise in designing and securing critical financial infrastructures. Proficient in firewall configuration, VLAN management, and implementing advanced secure access technologies such as VPNs, RED tunnels, and Web Application Firewalls (WAF). Led multiple projects to strengthen network protection and optimize secure communications between branches through VoIP and encrypted connections.

WORK EXPERIENCE

Network and Information Security Engineer
02/2024 - Present
Tamkeen Microfinance Bank , Aden, Yemen
• Designed, configured, and maintained enterprise-level firewalls (Sophos & FortiGate) to protect critical systems
• Implemented VLAN segmentation and port security to isolate and secure internal networks
• Developed and enforced access control policies (RBC) defining permissions per port and per user role
• Deployed and managed RED tunnels to securely interconnect branches
• Integrated and maintained VoIP communication across all branches through secure network routing
• Conducted penetration and stress testing coordination with external cybersecurity firms
• Ensure compliance with organizational and financial security standards

EDUCATION

Bachelor’s Degree in Information Technology
01/2018 - 01/2023
University of Aden

SKILLS

PROJECTS

Headquarters-Branches Network Connectivity
Technologies: Sophos RED tunnels, FortiGate firewalls, VoIP
• Implemented secure branch connectivity using Sophos RED tunnels
• Configured Sophos and FortiGate firewalls for encrypted data transfer between branches
• Integrated VoIP communication to enable direct and reliable inter-branch calling
• Applied access policies and routing rules to ensure security and network stability
Network Protection Enhancement
Technologies: Sophos firewalls, FortiGate firewalls, Role-Based Access Control (RBC)
• Optimized Sophos and FortiGate firewall configurations to strengthen network defense
• Applied role-based access control (RBC) defining privileges per port and access level
• Enhanced monitoring and logging to improve incident visibility and response time
• Reduced potential attack surfaces by enforcing strict access segmentation and port management
Tamkeen Wallet Implementation
Technologies: Web Application Firewall (WAF)
• Managed WAF rules and coordinated penetration testing with external security firms
• Ensured compliance with security policies and continuous monitoring during launch
SWIFT Environment Implementation
Technologies: SWIFT integration, Firewall management
• Configured servers and workflows for SWIFT integration
• Managed firewall rules and user roles for secure financial communication
ATM & POS Connectivity and Security Implementation
Technologies: IPsec VPN, VLANs, Firewall management
• Established IPsec VPN tunnels and VLANs to secure ATM/POS networks
• Managed firewall configurations to ensure encrypted and segmented traffic

CERTIFICATIONS

CC – Certified in Cybersecurity - ISC2