Nenad S.

I am a Senior Network Engineer/Consultant with nearly 20 years of hands-on experience designing, building, securing, and supporting enterprise networks across globe. My approach is simple: I solve problems fast, apply best practices, and help businesses run reliable, secure, and scalable networks—without overcomplicating things. What I Do • Network architecture & design • Firewall engineering (Palo Alto, Fortigate, Cisco ASA/FTD/Meraki) • Routing, switching & wireless for small businesses, enterprises, and MSP environments • Cisco Catalyst Center (DNA Center) automation, assurance, and integrations • Cloud networking: AWS & Azure • Zero Trust, segmentation, VPN/IPsec, SD-WAN • Network audits, troubleshooting & optimization Core Technologies • Firewalls: Palo Alto (Pan-OS, Panorama), Fortigate (FortiOS), Cisco ASA, Firepower/FTD, Meraki MX • Cisco Routing & Switching • Wireless: Cisco, Meraki, Unifi • Automation & Tools: Cisco Catalyst Center (DNA Center), Ansible, APIs • Cloud: AWS networking, Azure networking Certifications • CCNP Enterprise • CCNA Security, Wireless, Collaboration, Enterprise Why Clients Hire Me ✔ Fast, clear communication ✔ High-quality network solutions that save time, money, and frustration ✔ Strong troubleshooting and root-cause skills ✔ Practical, business-focused engineering—no overengineering I help companies stabilize, secure, and modernize their networks so they can focus on what matters.