TOP RATED PLUS FREELANCER. Agency Owner @STE BARNAOUI CONSULTING I’m a certified senior network engineer with over 5 years of experience in deploying, automating, and securing infrastructures across Cisco, Fortinet, Meraki, Palo Alto, Huawei and AWS platforms. I hold certifications in CCNP 300-415, CCNA 200-301, Cisco DevNet 200-901, and Fortinet FCP NSE4, NSE5 & NSE6. Skilled in Cisco Viptela SD-WAN, FortiGate, and FortiManager, I’ve led IP/MPLS, BGP IPv6 and SD-WAN projects and bring strong hands-on expertise in network/data center architecture. I'm proactive, fast-learning, and results-driven, always aiming to deliver reliable and efficient solutions.

I help ISPs, WISPs, MSPs, and datacenter operators maintain, troubleshoot, and improve their network infrastructure remotely. My strongest area is provider-style networking: MikroTik RouterOS, BGP, OSPF, VLANs, PPPoE, routing, firewalling, monitoring, wireless links, and day-to-day network operations. I also have hands-on experience with Ubiquiti UniFi/UISP, troubleshooting, Proxmox environments, VPNs, and network documentation. I am a MikroTik MTCINE-certified engineer, with practical experience in ISP networks, BGP routing, MikroTik core routers, access networks, customer troubleshooting, monitoring, and remote support. What I can help with: • MikroTik RouterOS configuration and troubleshooting • ISP/WISP network support and remote NOC tasks • BGP, OSPF, routing filters, VLANs, PPPoE, NAT, firewall rules • Ubiquiti UniFi / UISP support, wireless links, client networks • Proxmox and small datacenter network troubleshooting • Network monitoring, uptime checks, latency/packet loss reports • Remote hands coordination and clear technical documentation

Experienced Network Operations Center Team Lead with a demonstrated history of working in the information technology and services industry. - expert in building vpn platforms - expert in Networking, Cisco Systems Products( R&S, Security and Collaboration). - expert in Palo alto , Fortinet, PFSense firewalls, Mikrotik router, VPN - very good experience in Vmware ESXi, Ubiquity, Unify , windows Servers - very good exprience in cloud (AWS, GCP, Azure, Oracle OCI) - very good experience in linux -very good experience in docker, kubernetes -very good experience in git, ci/cd - Strong Development Skills specially network development(C#, .net web API , asp.net mvc) - .net core web api, microservices, rabbitmq, Rest API, EF

I have been working as a Linux server administrator for more than 20 years. In addition to that, I have extensive experience as a senior network engineer for both enterprise and small office/home office (SOHO) clients. My background also includes a strong expertise in VOIP engineering for Internet service providers (ISPs), with certifications in HDwifi and wifi design/administration. I have worked as a WISP engineer, handling routers and switches from Mikrotik, Cisco, and Juniper. Moreover, I possess the skills to create custom shell scripts using bash, python, and expect. Currently, I hold certifications as a Ubiquiti UBWA, UEWA, and UBRSA certified admin. Over the past 10 years, I have gained valuable experience in Vmware, specifically with Veeam backup, Nakivo, and AS backup integration, configuration, and administration. I have worked with Cisco UCS and Nimble infrastructure, ensuring smooth operations. Additionally, I am well-versed in Zerotrust network VPN, Zerotier, Zscaler, and hold an AWS Certified Associate certification.

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.

With 8+ years of experience, I solve high-stakes AI , security & cloud challenges for a global clientele. My work architecting resilient, compliant systems in complex multi-cloud environments now forms the bedrock of my venture, A2Z SOC, where I'm productizing this proven expertise. My approach is built on a public, verifiable record of execution. ► Proven Track Record & Core Competencies: • Global GRC & Threat Defense: Architected enterprise security programs for clients in the US, Australia, & ME, ensuring audit-readiness for ISO 27001, SOC 2, NIST & more. I've successfully neutralized active DDoS attacks against crypto platforms (AUS) and defended IoT fleets with custom Snort/Suricata rulesets (Malta). • Full-Stack Cloud & IoT Architecture: Deep expertise in deploying complex solutions on AWS, GCP, & Azure. A key project involved architecting a full-stack solution for a New Zealand enterprise, integrating nRF9160 IoT devices with AWS IoT Core and a custom web application. • Product & Platform Execution: I have a proven ability to ship. My portfolio includes 5+ live web applications and a cross-platform Flutter IPTV app (iOS, Android, Web), where I handled the full lifecycle. My Top 1% Freelancer status (70+ projects, 4.8★ rating) is my public record of reliability and client success. ► Technical Proficiencies: • Security: Wazuh, Snort/Suricata, Metasploit, Nessus • Cloud/DevOps: AWS, GCP, Azure, Docker, Kubernetes • Development: React, Node.js, Flutter, SQL The Vision: A2Z SOC - Automating a Proven Service A2Z SOC is not a startup built on a hypothesis; it is the automation of a successful global service. Our foundation is already validated and built: • A live, 100+ page front-end platform. • Our free A2Z SOC Learning Center with 40+ expert modules. • A complete, multi-tenant database schema, architected for enterprise scale. Invitation to Connect ► For Founders, CTOs, & Enterprises: I provide strategic consulting for your most critical challenges in multi-cloud security, GRC automation, and complex application architecture. ► For Investors & Venture Partners: A2Z SOC is a de-risked investment opportunity backed by verifiable global traction. I invite you to connect for an investor briefing.

Meraki Certified Network Operator and Firewall Network engineer, I have many years setting up and configuring, VPN, SD-WAN and remote locations Meraki and Cisco Switches and networking. Fortinet Firewall setup and config with remote locations and firewall filtering. User VPN setup and configure. Firewall rules and filtering. Nimble SAN Storage server setup and config with VMWare Esxi 5.0-6.7 setup and config with ISCSI connectivity for system storage profiles. Switches, Cisco Aeronet, Meraki, Ubiquiti and Motorola wireless, Nuuo video monitoring and LifeSize video conferencing. Troubleshoot TCP/IP, DNS, WINS, DHCP and VPN. Support and maintain computing services including Windows Hyper-V and IBM iSeries and System X servers, VMWARE Esxi 5.5-6.5. Server, 2003-2019 Citrix XenApps, and Windows environment. Troubleshoot EDI transactions in Data Masons Vantage Point and Liaison AS2. Administer Office 365 mail and apps.

🏆 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

Hi, I'm a dedicated Cisco Certified Network Engineer with CCNA and CCNP certifications, specializing in designing, implementing, optimizing, and troubleshooting robust enterprise and SMB networks.With hands-on experience in Cisco routing and switching technologies, I help businesses build secure, scalable, and high-performance network infrastructures that minimize downtime and support business growth. Whether you need a new network deployment, migration to SD-WAN, firewall configuration, VPN setup, or ongoing network support, I deliver reliable solutions tailored to your requirements.What I Offer:Network Design & Implementation: LAN/WAN/MAN design, VLANs, inter-VLAN routing, STP, EtherChannel, and advanced routing protocols (OSPF, EIGRP, BGP) Cisco Infrastructure: Configuration and management of Cisco routers, switches (Catalyst, Nexus), wireless controllers (WLC), and Meraki devices Security & Firewalls: Cisco ASA, Firepower, ACLs, VPN (Site-to-Site & Remote Access), and network security best practices Troubleshooting & Optimization: Rapid diagnosis and resolution of complex network issues, performance tuning, and QoS implementation Automation & Monitoring: Basic network automation with Python and Ansible, plus tools like SolarWinds, PRTG, and Cisco DNA Center I am passionate about delivering zero-downtime migrations, enhancing network security, and reducing operational costs through efficient designs. Previous projects include full network overhauls that improved uptime to 99.99% and reduced latency significantly.I'm available for short-term gigs, long-term support contracts, or one-time consulting projects. Let's discuss how I can help strengthen your network infrastructure — feel free to message me with your requirements!Certifications:Cisco Certified Network Associate (CCNA) Cisco Certified Network Professional (CCNP) – Enterprise Key Skills: Cisco CCNA, CCNP, Routing & Switching, BGP, OSPF, EIGRP, VLAN, VPN, Firewall, Network Security, SD-WAN, Packet Tracer, GNS3, Wireshark

A versatile professional who consults with complex diverse project teams on creative projects amid tight dead-lines. Introduce new concepts and champion best practices. Execute project objectives while working auto-no-mously. 10 Years of total experience in the Networks & Infrastructure 10 years experience on Cisco Routers & Switches. 8+ Years experience on Cisco Nexus Switches and Cisco Wireless 8+ Years experience on Firewalls (Juniper & ASA), Load Balancers (F5 & ACE) 8+ Years experience on Vmware Infrastructure 8+ Years experience with Cisco Ironports, Cisco ISE 2 Years of Experience on MPLS (Alcatel), DWDM (Fujitsu & Alcatel) Cisco Certifications - - CCNP Certified - CCNA Voice Certified - CCNA certified Completed Cisco Nexus, Wireless, and Infoblox boot camps.