Network Security Engineer

Adeboye Olufemi Firewall/ Network Security Engineer

Atlanta, GA Dorbas 1973 @gmail.com +1-404-***-**** LinkedIn SUMMARY:

PCNSE Certified Network Security Engineer with around 7 years in managing and securing enterprise networks. Expertise in configuring and optimizing Palo Alto, Juniper, and Fortinetfirewalls, as well as implementing traffic optimization, VPN solutions, and automated network tasks. Skilled in monitoring network traffic using Panorama, Splunk, and Tufin, and improving network security through policy enforcement and advanced threat detection. Proven track record of enhancing system resilience, reducing downtime, and ensuring high uptime for critical services. Strong collaboration skills with cross-functional teams to resolve complex network issues and improve overall security posture. SKILLS:

Firewalls: Palo Alto, PAN-OS (8.0, 9.0, 10.0), Juniper SSG, SRX, NGFWs Web and Application Security: WAF, Proxy, McAfee Web Gateway Programming and Automation: Python, API

Networking Protocols: TCP/IP Protocol Suite, IPsec VPN, SSL VPN, Route-Based VPN, Domain-Based VPN Routing and Switching: Static Routing, RIP v2, OSPF, BGP, VLAN, Subinterfaces, LAN Authentication Services: LDAP, RADIUS

Monitoring and Analysis: Wireshark, TCP Dump, PCAP, Splunk VPNs and Tunneling: Route-Based VPN, Domain-Based VPN Security Tools: IPS/IDS, Antivirus, Antispyware, Vulnerability Protection, Wildfire Management Platforms: Panorama, Tufin, Service Manager, ServiceNow Advanced Features: QoS, PBF (Policy-Based Forwarding), SD-WAN, Cortex Data Lake Subnetting and NAT: Subnetting, HiDeNAT, DIP (Dynamic IP and Port), DIPP Compliance and SOPs: SOPs (Standard Operating Procedures) Operating Systems: Linux, Windows

CERTIFICATIONS:

Palo Alto Networks Certified Network Security Engineer (PCNSE)

CompTIA Security +

Ace (Accredited Configuration Engineer)

Network Security Associate (NSE 1, NSE2)

WORK EXPERIENCE:

Network Security Engineer (Contract) Nov 2022 – Nov 2024 Publix Super Markets, Inc, Lakeland, FL

Oversee 100+ Palo Alto Networks PA-820, PA-5410, PA-5450, and PA-7050, firewalls, enhancing network security by implementing policies that Mitigate Security Breaches Engineer 99.9% uptime IP address management solutions, supporting DHCP and DNS services for scalable network infrastructures.

Create QoS and PBF strategies, increasing traffic optimization efficiency by 25% and prioritizing critical application flows. Enhance the security posture of 200+ Palo Alto NGFWs running PAN-OS 8.0, 9.0, 10.0, AND 11.0, achieving a significant improvement in threat mitigation.

Analyze 1 TB+ daily network traffic and threats using Panorama, achieving 99.8% threat visibility through centralized management.

Deploy Cisco SD-WAN Viptela solutions, improving network performance by 35% and reducing operational costs by 20%. Automate 80% of routine network tasks using Python scripting and API integrations, driving operational efficiency and scalability.

Spearhead a Cisco ASA Security upgrade project, reducing cybersecurity incidents by 35% and bolstering overall system resilience.

Safeguard critical infrastructures by deploying and maintaining Juniper SSG and SRX firewalls, mitigating 95% of detected cyber threats.

Configure Panorama’s Log Forwarding interfaces, enabling 100% seamless integration with SIEM systems for real-time threat analysis.

Conduct 50+ lab operations monthly, including hardware testing, firmware updates, routing protocol validation, and equipment migrations.

Establish secure VPN solutions (IPSec, SSL, route-based, and domain-based), ensuring 99.5% reliability for remote access and site-to-site connectivity.

Resolve 90% of network outages and complex misconfiguration issues by collaborating with cross-functional teams within SLA timelines.

Network Security Engineer May 2020 – Oct 2022

Uber, New York, NY

Deployed Palo Alto Networks PA-7050, PA-5450, and PA-5410 firewalls, enhancing network security with advanced policy configurations.

Architected IP address management solutions, ensuring 99.9% uptime for DHCP and DNS services in scalable environments. Engineered QoS and PBF strategies, improving traffic prioritization efficiency by 25% for critical applications. Maintained Palo Alto NGFWs running PAN-OS 8.0, 9.0, and 10.0, achieving a 30% improvement in enterprise security posture. Analyzed 1 TB+ daily network traffic using Panorama, ensuring 99.8% visibility and centralized threat management. Orchestrated the deployment of Cisco SD-WAN Viptela solutions, enhancing network performance by 35% and cutting costs by 20%.

Automated network workflows using Python scripting and API integrations, achieving an 80% boost in operational efficiency. Directed a Cisco ASA Security system upgrade, reducing cybersecurity incidents by 35% and improving overall resilience. Strengthened infrastructure security with Juniper SSG and SRX firewalls, mitigating 95% of detected cyber threats. Streamlined Panorama integration with SIEM systems through Log Forwarding interfaces, enabling real-time threat analysis and reporting.

Conducted lab operations, including 50+ monthly tasks such as hardware testing, firmware upgrades, and protocol validation. Established secure VPN solutions (IPSec, SSL, route-based, domain-based), achieving 99.5% connectivity reliability. Resolved complex networking issues collaboratively, addressing 90% of outages within SLA-compliant timelines. Firewall Engineer

DXC Technology, Alpharetta, GA

Feb 2018 – Apr 2020

Developed security policies and rules in Fortinet firewalls, implementing egress filtering to enhance network security across the enterprise environment.

Optimized network performance by configuring and troubleshooting Riverbed WAN optimization software, improving acceleration and reducing latency for end-users.

Formulated and maintained standard operating procedures (SOPs) for firewall configuration, upgrades, and troubleshooting, ensuring consistent and efficient practices.

Administered over 300 Palo Alto firewalls using Panorama, Command Line Interface (CLI), and the web-based GUI, streamlining both centralized and individual firewall management. Directed firmware and code upgrades for NGFWs and Juniper firewalls, minimizing downtime and achieving enhanced security compliance.

Resolved complex firewall and connectivity issues using Wireshark, PCAP analysis, and TCP Dump, reducing resolution times by 25%.

Integrated log forwarding on firewalls to facilitate seamless connection with monitoring tools like Splunk and Tufin, enabling proactive threat detection and analysis.

Collaborated with cross-functional teams to address outages, misconfigurations, and policy updates, successfully resolving 90% of incidents within SLA timelines.

EDUCATION:

Bachelor’s degree in Business Administration

Osun State Polytechnic, Nigeria

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