class NetworkSecurityEngineer:
def __init__(self):
self.name = "Tamer Khalifa"
self.role = "Expert Networking & Security Engineer"
self.company = "SITA Egypt"
self.ccie_number = 68867
self.experience_years = 10
self.location = "Cairo, Egypt"
self.credly = "https://www.credly.com/users/tamer-said-hashim"
def current_focus(self):
return [
"Network Security Automation with Python & Ansible",
"Zero Trust Architecture Implementation",
"SD-WAN & SDA Enterprise Solutions",
"Cloud-Native Security (Azure, NSX-T)"
]
def expertise(self):
return {
"firewalls": ["Palo Alto NGFW", "FortiGate", "Cisco ASA"],
"load_balancers": ["F5 BIG-IP LTM"],
"networking": ["BGP", "OSPF", "MPLS", "VPN", "SD-WAN"],
"automation": ["Python", "Ansible", "REST APIs", "Netmiko"],
"virtualization": ["VMware ESXi", "NSX-T", "Azure"]
}
def certifications(self):
return {
"expert": ["CCIE Enterprise Infrastructure #68867"],
"professional": ["CCNP Enterprise", "CCNP Data Center", "PCNSA"],
"specialist": ["SD-WAN", "ACI", "F5-CTS BIG-IP LTM"],
"architect": ["FCSS SD-WAN 7.2"]
}"The best engineers don't just solve problems—they eliminate them through automation."
|
1. 🎯 Decomposition
2. 🔄 Pattern Recognition
3. 🔬 Root Cause Analysis
4. 🏗️ Solution Architecture
|
⚡ Speed 🎯 Consistency 📈 Scale 📊 Visibility 🔄 Repeatability |
# Deploy policies across 50+ firewalls
from netmiko import ConnectHandler
from pan.xapi import PanXapi
def deploy_security_policy(policy, firewalls):
"""
Automated security policy deployment
with validation and rollback
"""
for fw in firewalls:
try:
api = connect_firewall(fw)
api.validate_policy(policy)
api.commit_changes()
log_audit(fw, policy, "SUCCESS")
except Exception as e:
rollback(fw)
alert_team(fw, e)📊 Impact: 4 hours → 15 minutes (93% faster) |
# Automated edge device onboarding
import requests
def onboard_sdwan_edge(site):
"""
Zero-touch provisioning via
vManage REST API
"""
template = build_template(site)
vmanage.post("/template/device", template)
vmanage.post("/device/action/sync",
{"deviceId": site.device_id})
verify_wan_connectivity(site)
notify_noc(f"Site {site.name} online")📊 Impact: Days → Hours (90% faster) |
# Intelligent network monitoring
from prometheus_client import Gauge
def health_check_automation():
"""
Collect metrics, detect anomalies,
auto-create incidents
"""
for device in get_devices():
metrics = poll_snmp(device)
if detect_anomaly(metrics):
severity = calculate_severity(metrics)
create_incident(device, severity)
if severity == "CRITICAL":
page_oncall_engineer()📊 Impact: 60% faster incident response |
# Automated compliance verification
import difflib
import jinja2
def audit_compliance():
"""
Compare running configs against
golden templates
"""
baseline = load_golden_config()
for device in inventory:
running = backup_config(device)
violations = compare(running, baseline)
if violations:
report = generate_remediation(violations)
send_to_change_management(report)📊 Impact: 100% compliance visibility |
🏆 View all my verified badges on Credly
| Level | Certification | Vendor |
|---|---|---|
| 🏆 Expert | CCIE Enterprise Infrastructure #68867 |  |
| ⭐ Professional | CCNP Enterprise (ENCOR + ENARSI) | |
| ⭐ Professional | CCNP Data Center (DCCOR) | |
| ⭐ Professional | CCNP Routing & Switching | |
| 🎯 Specialist | SD-WAN Implementation (ENSDWI) | |
| 🎯 Specialist | ACI Implementation (DCACI) | |
| 🏗️ Architect | FCSS SD-WAN 7.2 Architect |  |
| ⭐ Professional | FCSS Solution Specialist | |
| ⭐ Professional | PCNSA |  |
| 🎯 Specialist | F5-CTS BIG-IP LTM |  |
┌─────────────────────────────────────────────────────────────────────────────┐
│ 2025 - Present ║ 🔷 SITA Egypt │
│ ║ Expert Networking & Security Engineer │
│ ║ • Palo Alto NGFW, FortiGate, F5 BIG-IP │
│ ║ • VMware NSX-T micro-segmentation │
│ ║ • Azure cloud networking │
│ ║ • Security automation & operations │
├─────────────────────────────────────────────────────────────────────────────┤
│ 2024 - 2025 ║ 🔷 Cisco Poland │
│ ║ Consultant Engineer - CX SDA/DNA │
│ ║ • Cisco DNA Center deployment │
│ ║ • Software-Defined Access (SDA) │
│ ║ • Intent-based networking │
├─────────────────────────────────────────────────────────────────────────────┤
│ 2019 - 2024 ║ 🔷 Orange Business Services │
│ ║ Senior Network Implementation Engineer │
│ ║ • Cisco SD-WAN (vManage, vSmart, vBond) │
│ ║ • Nexus Data Center (N5K, N7K, N9K) │
│ ║ • Python automation for network ops │
├─────────────────────────────────────────────────────────────────────────────┤
│ 2016 - 2019 ║ 🔷 Telecom Egypt │
│ ║ Network Engineer → Senior Network Engineer │
│ ║ • BGP, OSPF, MPLS, EIGRP │
│ ║ • L2/L3 VPN implementation │
│ ║ • FortiGate firewall deployment │
└─────────────────────────────────────────────────────────────────────────────┘
| 🏅 Award | 📅 Year | 🏢 Organization | 💡 Reason |
|---|---|---|---|
| CSO Maestros of the Year | 2023 | Orange | High-performing team recognition |
| Change Maker Award | 2020 | Orange | Customer success excellence |
| Local Excellence Award | Multiple | Orange | Outstanding contributions |
Network Automation • Security Architecture • SD-WAN Design • Python for NetDevOps • Zero Trust • Infrastructure as Code
Network Automation Tools • Security Scripts • Infrastructure as Code • Open Source NetDevOps