Hire the Best Cisco Certified Design Experts (CCDE)

With 10+ years in network infrastructure and security, I help businesses resolve the issues that stop daily operations: failed VPNs, blocked firewall traffic, unstable branches, cloud connectivity and VoIP/SIP problems. My focus is simple: find the actual root cause, restore services with minimum disruption, and avoid risky trial-and-error changes on a live network. I have supported enterprise, government, data centre and multi-site business networks using Fortinet, Cisco and other leading firewall platforms, with hybrid connectivity across AWS, Microsoft Azure and Google Cloud. My "Zero-Risk" Methodology Many engineers rely on "guess and check" troubleshooting. I don't. I never make blind changes on a live production network. Before altering your setup, I map your current design, analyze your routing, and review firewall policies. I always pull backups, engineer a rollback plan, and execute controlled, fully documented changes. My goal is permanent stability, not temporary patches. Core Expertise & Outcomes Delivered: Firewall & Threat Management: FortiGate, Cisco, UniFi, and MikroTik. (Comprehensive policy audits, legacy rule cleanup, and strict hardening). Complex VPN Troubleshooting: Site-to-Site, Remote-Access, IPsec, and SSL VPNs. If your tunnel is unstable or failing, I will stabilize it. Cloud & Hybrid Infrastructure: AWS (VPC, Security Groups), Microsoft Azure (VNet, VPN Gateway, NSG), and Google Cloud. I build secure, seamless office-to-cloud and cloud-to-cloud bridges. VoIP/SIP Optimization: Resolving SIP registration failures, NAT traversal bugs, one-way audio, and call drops using precise QoS, Voice VLANs, and Cisco CUBE support. Advanced Routing & Switching: SD-WAN deployments, dual-ISP failover, VLANs, and comprehensive LAN/WAN/Wi-Fi troubleshooting. How We Can Partner: Emergency Troubleshooting: Rapid isolation and resolution of critical connectivity, routing, or security failures affecting your users. Network Health & Security Audits: Deep-dive reviews to identify vulnerabilities, clean up messy configurations, and provide actionable security roadmaps. Infrastructure Setups & Migrations: End-to-end planning for new branch offices, secure remote work environments, and physical security networks (CCTV/Biometrics). Retained Network Support: Dependable, on-demand escalation support for internal IT teams, MSPs, software companies, and business owners. My core technical experience includes: • FortiGate configuration, migration and troubleshooting • Cisco routers, switches, Firewall, Firepower, Voice Gateway and CUBE • Fortigate, Fortinet, Mikrotik, • IPsec, SSL and remote-access VPNs • Site-to-site VPN and multi-site connectivity • SD-WAN, dual-ISP failover and policy-based routing • VLANs, routing, NAT, DHCP, DNS and LAN/WAN troubleshooting • Firewall policy review, cleanup and security hardening • Wi-Fi, office connectivity and branch network support • AWS VPC, routing, security groups, VPN and hybrid access • Azure VNet, NSG, VPN Gateway, peering and hybrid connectivity • Google Cloud VPC, firewall rules, VPN and network access • SIP, NAT traversal, RTP, one-way audio and call-drop issues • Voice VLANs, QoS and firewall policies for voice traffic • Network diagrams, documentation and handover notes Where access permits, I take a backup, confirm the rollback plan, make controlled changes, test the traffic flow and document the result. This is especially important on production firewalls, remote branches, VPN tunnels and voice networks, where one quick change can affect another service. Let’s Secure Your Network Whether you need a one-time emergency fix, a comprehensive security audit, or ongoing support, I am here to help. Please share: Your primary firewall/hardware vendor and model. The exact issue or project scope (and any recent changes made). The number of sites or users affected. Once I understand your exact setup and the business impact, I will provide a clear, safe plan of action to get your network running flawlessly.

Top Rated Plus, Experienced Network Engineer & Network Operations Manager With ⭐️ over a decade ⭐️ of experience in network engineering and operations, I bring a wealth of expertise to meet your business needs. As a seasoned Network Engineer, I have successfully handled clients across the globe, ensuring robust and efficient network solutions. ▶︎ PROFESSIONAL BACKGROUND: Former Global Network Operations Manager at one of the largest BPOs worldwide. Led a team of network professionals to manage and optimize global infrastructures. ▶︎ SPECIALIZATIONS: 1. ⭐️ Unifi/Ubiquiti: Cloud gateways, routers, switches, access points, and cameras. 2. Cisco: Routers, switches, access points, firewalls (ASA and FTD), ISE, SD-WAN, DUO, and Umbrella. 3. ⭐️ VPN Expertise: AnyConnect, Secure Client, Wireguard, OpenVPN, IPSec VPN, and SSL VPN. 4. Meraki: Access points, switches, and routers. 5. Palo Alto Firewalls 6. Sonicwall Firewalls 6. Linux Servers 7. Synology NAS ▶︎ CERTIFICATIONS: ✅ CCNP ✅ CCNA Security ✅ Lean Six Sigma Yellow Belt ▶︎ WHY CHOOSE ME? Proven track record of delivering high-quality network solutions. Extensive experience with a variety of network technologies and platforms. Committed to providing exceptional service and support to ensure your network's success.

Am a CCIE#26611 with extensive experience in Routing & Switching, Security, Datacenter, Virtualization, Public Cloud, Artificial Intelligence Network Skills & Agentics, Programmability & Automation. Am delivering unique & absolutely different service for the below technologies: * SDN Datacenter: Cisco ACI, VMware NSX, Nutanix Flow, Arista. * SDN Storage: Nutanix HCI, VMware VSAN. * SDN Access: Cisco DNA, LISP Implementation, Cisco Spaces, Cisco ISE, PacketFence. * SDN WAN: Cisco SDWAN, VMware VeloCloud, SilverPeak, PaloAlto SDWAN, FortiGate SDWAN, Meraki. * Programmability & Automation Controllers: Python & API tools to automate business intent & workflows within networks, Ansible, Chef, NSO, Terraform, OpenShift, AI network skills. * Monitoring Applications: Zabbix, SolarWinds, Home Made Custom Tools, Nmap, Packet Tracer (Wireshark), Splunk, Wazuh, ContraForce, ServiceNow and much more. * Routing & Switching and Wireless Technologies: Cisco, Mikrotik, Juniper, FS, Arista, HPE, Huawei. * Security: Cisco, PaloAlto, Meraki, FortiNet, Ubiquiti, VMware MDM, Infoblox. * Datacenter, Cloud Computing, Cloud Native, Virtualization & HCI Solutions. * Public Cloud: Design, Setup & Administer Tenants on AWS, Azure, GCP & OCI. * Micro-segmentation & Containerized Applications: Docker, Kubernetes. * API Gateways & Swagger Documentation. * Python Scripting for DevOps, SecOps, NetOps & I network skills. * Technical Writing & Documentation. Please refer to my LinkedIn account aossama. Certifications: * CCIE Enterprise CCIE#26611. * Cisco CCNP DevNet. * Cisco CCNP Enterprise. * Cisco CCNP Datacenter. * Cisco ACI Certified Specialist.

I’m a network engineer with over 9 years of experience in managing, optimizing, and securing complex network infrastructures in global environments. Professional Background: I offer end-to-end network solutions—from setup to optimization—designed to give your business uninterrupted performance, top-tier security, and long-term stability. Specializations: 1. Cisco Technologies (Routers, Switches, Firewalls - ASA, ISE, SD-WAN, VPN - AnyConnect) 2. Juniper (Routers and Switches) 3. Arista (Routers and Switches) 4. Meraki (Switches and Access Points) 5. Palo Alto Firewalls 6. Fortigate Firewalls 7. Linux Servers 8. VMWare vCenter Certifications: 1. CCNP Enterprise 2. CCNA Security and Data Center 3. AWS Cloud Practitioner If you’re looking for a reliable professional to manage your network, resolve technical challenges, and strengthen your infrastructure's security and efficiency, let’s connect.

Network Engineer & Architect with 6+ years of experience designing, deploying, and securing enterprise, data center, and cloud networks. CCNP & MCSA certified, delivering high-availability, cost-efficient, and secure network solutions. Hands-on expertise with Cisco, Huawei, Juniper, MikroTik, Dell, HP, Ruckus, and UniFi networks, along with firewalls including Palo Alto, Fortinet, Sophos, and Cisco ASA. I help businesses design, secure, and optimize enterprise and cloud networks. From network design and firewall configuration to VPN setup and complex troubleshooting, I solve your challenges quickly and professionally, ensuring your systems run smoothly and securely. Certifications: - Cisco Certified Network Professional (CCNP) - Cisco Certified Network Associate (CCNA) - Microsoft Certified Solutions Associate (MCSA) Tools: - Nagios - Cacti - OpManager - Zabbix - PRTG Network Monitor - Solar Winds NPM - Packet Tracer - GNS3 - EVE-NG - Microsoft Visio - Lucidchart

🏆 UPWORK EXPERT-VETTED | NETWORK & SECURITY ENGINEER / ARCHITECT 🏆 I’m a Network & Security Engineer / Architect with 17+ years of experience and 15,000+ hours on Upwork. I design, secure, and optimize enterprise, ISP, data center, and cloud networks — focused on performance, scalability, and security. 🔹 CORE EXPERTISE Networking & Infrastructure Vendors: Cisco, Juniper, MikroTik, Arista, Dell, Ruckus, Mellanox, Ubiquiti, Aruba Technologies: BGP, OSPF, MPLS, VXLAN, EVPN, QoS, Load Balancing Firewalls & Security Fortinet, Palo Alto, Sophos, SonicWall, Zyxel, PFSense NGFW, IPS/IDS, Zero Trust, DDoS Mitigation, Web Filtering, SIEM Integration ISP & Broadband Huawei, ZTE, MikroTik, Netonix GPON/XG-PON, CGNAT, PPPoE, RADIUS, IPv6 Migration VPN & Remote Access IPSec, OpenVPN, WireGuard, DMVPN, SSL VPN, SD-WAN, V2Ray Cloud & Virtualization AWS, Azure, VMware, Proxmox, KVM, Hyper-V Linux (Ubuntu, Debian, CentOS, BSD) Monitoring & Automation PRTG, Grafana, LibreNMS, Zabbix, NetBox 📜 CERTIFICATIONS Cisco: CCNP / CCNA / CCDA / CCDP Juniper: JNCIS / JNCIA Ruckus: RCNI / RONE / RASZA / RICXI / RCWA HPE: HPE-Hybrid Cloud Fortinet: NSE4 💼 SERVICES Network Design & Optimization (Enterprise, ISP, Data Center) Firewall & Security Hardening (NGFW, IPS/IDS, Zero Trust) Cloud & Hybrid Networking (VPC, Peering, Transit Gateway) VPN & Secure Remote Access (IPSec, SSL, SD-WAN) ISP & Broadband Engineering (BGP, MPLS, GPON, IPv6) Network Troubleshooting & Performance Tuning