Current Certifications: * CCENT ( Cisco Certified Network Technician ) * CCNA (Cisco Certified Network Admin (Routing & Switching)) * CCNP (Cisco Certified Network Professional (Routing & Switching)) * CCNA-SECURITY (Cisco Certified Network Security Admin) * SECURITY+ CE (CompTIA Certified SECURITY) * CEH (Certified Ethical Hacker) I am a Sr. Network and Security Engineer (SME) with expertise in Cisco Network Engineering and Cyber Security Engineering with year of I.T. experience managing private and government enterprise networks and Cyber security Network environments for large and small businesses . I have over 18+ years total experience as a lead Sr. network engineering SME as my foundation , and 9 yrs experience in Cyber Network Security infrastructure , design, configurations, troubleshooting, Cyber threat hunting. Also upgrading enterprise networks and security infrastructures for private companies , government organizations , including large and small business Networks and information systems. These skills include SME experience in Cisco Routing and Switching, ASA Firewalls, Palo Alto, Pfsense , VPNs, F5 Load balancer, WLAN, VoIP, and Cyber Security tools and SIEMS and Network Scanning, Windows Server, and WiFi networks.

CCSE, ITILv3 , Fortinet NSE4 CCNP R&S,CCNP Security. In the last 15 years, I have been working on various network products and have gained comprehensive experience in Cisco, Fortinet, SonicWall, Checkpoint, HP, F5, Trellix (McAfee) ENS/EDR technologies. I have been involved in the design, configuration, and troubleshooting of Network products. Firewalls: Cisco ASA & Cisco Firepower Fortigate UTM Firewalls Checkpoint management servers & Security Gateways. SonicWall TZ & NSA UTM Firewalls Pfsense Firewall ZTNA FortiClient ZTNA & FortiClient EMS. Load Balancers: F5 BIG-IP Application Delivery Controllers Radware Application Delivery Controllers Array Application Delivery Controllers Fortinet Application Delivery Controllers. Routers: Cisco, Arista, HP Switches: Cisco Catalyst Cisco Nexus N5K & N9K HP Switches Wireless Controller & Access Points: Cisco WLC, Aruba WLC Unify WLC Meraki Endpoint Security Trellis (McAfee) ENS & EDR

As a highly skilled and experienced professional with over 08+ years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project. My few hands-on experiences is: ⭐Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG ⭐Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution ⭐ Expert in configuring, managing, and troubleshooting Cisco routers, switches, FTD, FMC, and ASA firewalls. ⭐ Expert in configuring, managing, and troubleshooting Fortigate, Sophos, Check Point, SonicWall, Palo Alto, pfSense, OPNsense & Huawei firewalls, ⭐Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations. ✅Cisco, Tp-Link, Aruba, Fortinet, Ubiquiti, Planet, Huwei switch configurations. ⭐Proficient in configuring, managing, and troubleshooting Unifi Enterprise Fortress Gateway, UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices. ⭐Expert in Linux administration, with expertise in Ubuntu, Red Hat, openSuse, CentOS, Debian, and Kali Linux distributions. ⭐Expert in Windows server administration , Active Directory management, Exchange Server administration, DNS configuration, DHCP implementation, and Windows operating system support. ⭐Experienced in managing and configuring virtualization platforms including HYPER-V, VMware ESXi, VMware Workstation, KVM, VirtualBox, and Proxmox. ⭐Servers: HP Proliant Servers, Dell/EMC Servers, IBM ⭐MikroTik Routers configuration ✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH and Digital Ocean ⭐VLSM/subnetting of small to large enterprises ⭐VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP), Spanning Tree (STP, PVST++, MSTP), and FHRP Protocols ⭐IPV4 & IPV6 IP planning, DHCP, NAT/PAT configuration and IP helper address ⭐static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration ⭐Layer-3 Redudent/backup links Using HSRP, VRRP ⭐Port security, ACL( access list) configuration ⭐Network troubleshooting and optimization ⭐VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OPENVPN , wireguard & DMVPN) ⭐Advanced Excel skills, including macro, VBA, VLOOKUP, and other automation techniques ⭐Network automation script for any cisco and fortigate devices using python ⭐ Skilled in automation using Bash/Shell scripting ✅Overlay Networks VPN Expertise: Proficient in configuring and managing various overlay network VPNs, including ZeroTier, Tailscale, WireGuard, SoftEther VPN, Netbird , Netmaker, OpenVPN Cloud, I, Twingate and PeerVPN for secure, scalable, and decentralized networking, enabling seamless remote access, team collaboration, and encrypted communications across distributed systems. ✅Beryl AX and Flint Router Configuration Expert ( Mini Router, Travel Router, Home Wi-Fi, cellular Router) like GL-MT6000, GL-AXT1800, GL-MT3000, GL-A1300 etc ✅Cisco Duo: MFA, 2FA, SSO, Identity Security Integration, Windows Logon, RDP, Microsoft AD, VPN Authentication.

I help businesses securely connect offices, remote employees, and cloud infrastructure through enterprise VPN, firewall, and networking solutions. With 8+ years of experience and 500+ successful projects, I specialize in Cisco, Fortinet, WireGuard, OpenVPN, IPsec, and GL.iNet technologies that keep businesses secure and connected. 🏆 Trusted by Businesses Worldwide – 500+ VPN & Networking Projects Delivered ✅ 8+ Years of Enterprise Networking Experience 🔒 Secure, Reliable & Production-Ready Network Solutions Are you looking for a network engineer who can quickly resolve VPN issues, securely connect multiple offices, deploy enterprise firewalls, migrate network infrastructure, or optimize cloud connectivity? You're in the right place. I'm a Cisco CCNP Enterprise Certified Network Engineer with over **8 years of hands-on experience** designing, deploying, securing, and troubleshooting enterprise networks for businesses worldwide. I specialize in delivering reliable networking solutions that improve security, performance, and business continuity. Whether you need a one-time network deployment, emergency troubleshooting, or a long-term networking partner, I provide practical, business-focused solutions backed by clear communication and dependable support. Core Services ✔ Remote Access VPN Deployment ✔ Site-to-Site VPN Configuration ✔ VPN Troubleshooting & Performance Optimization ✔ Firewall Configuration & Security Hardening ✔ Enterprise Network Design & Administration ✔ Cloud Networking (AWS & Azure) ✔ Network Troubleshooting & Performance Optimization ✔ Wireless Network Design & Optimization ✔ Network Migration & Infrastructure Upgrades ✔ Network Automation & Documentation VPN & Remote Access Expertise • WireGuard VPN • OpenVPN • IPsec / IKEv2 VPN • Cisco AnyConnect • L2TP VPN • Tailscale • ZeroTier • Remote Access VPN • Site-to-Site VPN • Cloud VPN Connectivity • Multi-Site VPN Deployments • VPN Performance Optimization • Secure Remote Workforce Solutions Enterprise Networking • Cisco Routing & Switching • Cisco Meraki • Fortinet Firewalls • GL.iNet Routers • OpenWrt • VMware ESXi • VLAN Design & Implementation • STP • EtherChannel • HSRP • VRRP • OSPF • EIGRP • BGP • MPLS • NAT • DNS • DHCP • Wireless Networking • High Availability (HA) • Network Monitoring • Infrastructure Migration Security, Cloud & Automation • Firewall Hardening • Security Policy Configuration • AWS Networking • Microsoft Azure Networking • Hybrid Cloud Connectivity • VPN Security Best Practices • Port Forwarding & NAT • Python Network Automation • Infrastructure Documentation • Network Diagrams • Technical Consulting Why Businesses Choose Me ✅ 500+ successful VPN & networking projects delivered ✅ Cisco CCNP Enterprise Certified ✅ 8+ years of enterprise networking experience ✅ Fast troubleshooting with minimal downtime ✅ Secure, scalable, and production-ready solutions ✅ Clear communication throughout every project ✅ Long-term technical support after project completion ✅ Experience supporting businesses across the USA, Canada, UK, Europe, and Australia What You Can Expect ✔ Fast response times ✔ Reliable communication ✔ Professional documentation ✔ Clean and secure configurations ✔ Scalable network architecture ✔ Business-focused solutions ✔ Long-term support when you need it My goal is simple: build secure, reliable, and high-performing network infrastructures that allow your business to operate without interruption. Whether you need to deploy a VPN, configure a firewall, secure remote employees, connect multiple offices, optimize cloud networking, or troubleshoot complex network issues, I'm ready to help. Let's discuss your project and build a secure, scalable, and reliable networking solution tailored to your business.

I'm a Network Engineer with over 6 years of dedicated experience in Networking, complemented by an additional 6 years in IT support and systems administration. My proficiency extends across a spectrum of technologies, including expertise in Cisco, Mikrotik, Meraki, and various other brands.

👑 Expert Vetted - Top 1% of talent on Upwork ⭐️ Top Rated Plus - Highly rated for work on large projects 🎯 100% Job Success Score 🕒 3000+ hours on Upwork ✅ 14+ years of experience ✅ 50+ projects delivered ✅ Excelling in delivering Fortune 500-scale projects Over 13 years of extensive experience in Cloud Environment, Corporate Network, FinTechs and ISPs. In Summary, my credentials include, Cloud Expertise Amazon Web Services (EC2, S3, VPC, IAM, Security-Groups, DirectConnect, Transit Gateway, WAF etc) Oracle Cloud Infrastructure (VCN, Subnets, Route Tables, Compute, IAM etc) Google Cloud Platform (IAM, Compute Engine, Firewall, Partner Interconnect, VPN, VPC etc) Security: Cisco FMC, FTDs & ASA, Palo Alto Network Firewalls and Panorama, Fortinet, FortiManager, Fortigate Firewalls, F5 BigIP LTM WAF, IPSec & Remote Access VPNs, NGIPS, Threat Prevention, URL Filtering, Cisco ISE, Cisco DUO, TACACS & Radius Authentication, SIEM, Cortex XDR, Wazuh, Rapid7, Security Onion Routing: OSPF, BGP, MPLS, Policy Base Routing using Route Maps, TCP/IP, Layer 3 Redundancy (HSRP), IP Spoofing, Virtualization (VRF), IP SLA, NAT/PAT, GRE Tunnels. Switching: Nexus VPC, Cisco Stack, Catalyst VSS, VXLAN, Spanning Tree Protocol, EtherChannels (LACP, PAGP), Access-Maps. DevOps: Terraform, Ansible, Python, Git, BitBucket, Docker, Jenkins, Linux, Netbox, Wireshark PCNSE, PCNSA CCNA 200-120 CCNA Security 640-554 CCNP R & S

👨‍💻 Experienced IT Lead | Cloud & DevOps | Infrastructure & Security Specialist With over 10 years of hands-on experience in cloud solutions, DevOps automation, and network infrastructure, I design and maintain reliable IT environments for multi-branch organizations. Skilled in Azure, AWS, DigitalOcean, Hetzner, Contabo, Vultr, Bluehost, and Hostinger, managing migration, integration, and automation between on-premises and cloud systems. Proficient with Docker, GitHub, CI/CD pipelines, API integration, and scripting in Python, PowerShell, and Bash to streamline deployments and automate operations. Experienced with VMware ESXi, Proxmox, and Windows Server (2012–2025) administration, including Active Directory, Group Policy, DNS, and DHCP. 📜 Certifications: ✔ 📘 ITIL® 4 Foundation Certificate in IT Service Management ✔ 🎓 CCNA Routing & Switching (Cisco Certified Network Associate) ✔ 🏆 MCSA Windows Server 2012 (Microsoft Certified Solutions Associate) ✔ 🏅 MCSE Core Infrastructure (Microsoft Certified Solutions Expert) ✔ 📡 Cisco Certified Specialist - Enterprise Core ✔ 🔐 Cyber Security Foundation (CSFPC) ✔ 🖥 Microsoft Certified Professional (MCP) 🛡 Network & Security Expert in firewalls (Sophos, pfSense, OPNsense, Mikrotik, DrayTek), VPNs (IPSec, WireGuard, SSL), and Cloudflare DNS/SSL security. Skilled in routing, VLANs, QoS, load balancing, and network monitoring for high-availability connectivity. 🏗 Systems & Virtualization Managing both Windows and Linux servers (Ubuntu, CentOS, Debian) with RAID, NAS/SAN, and backup solutions like Veeam. Experience in Proxmox VE, VMware, and Hyper-V environments. 📞 VoIP & Communication Administering Avaya, Asterisk, FreePBX, and Issabel systems, configuring SIP trunks, IVR, queues, and call recording for enterprise call centers. 🏢 ERP, CRM & Business Systems Managing Odoo, custom ERP deployments, and CRM integration to improve business workflow and data consistency. ☁ Remote & IT Management Using AnyDesk, Zoom, TeamViewer, and ManageEngine for remote support, monitoring, and ticketing. Experienced in IT procurement, inventory tracking, and documentation. 🎥 CCTV & Access Control Installing and maintaining IP/Analog CCTV, access control, and UPS power systems for secure and reliable infrastructure. 🚀 Passionate about cloud infrastructure, automation, and cybersecurity, with a proven record of optimizing enterprise networks and ensuring system uptime, stability, and security.

🟢 Available 🕗📅Full Time Freelancer📅🕗 🔝🏆Top Rated Plus on Upwork 🏆🔝 💯100%✔️ Job Success💯100%✔️ ╰┈➤ Cisco CCIE Certified Engineer , have 12 years of experience with Network Solutions and worked for Cisco Gold Partenr Companies and support MegaCustomers around the world . ╰┈➤ Able to provide professional services ( Design,Deployment & Troubleshooting ) for below Solutions 👇 ✔ Cisco Collaboration Portfolio includes ( Cisco Call Manager CUCM , Unity Connection, IM&Presence,Jabber,Expressway MRA ,SIP CUBE , H323 MGCP Voice Gateway,Cisco Contact Center Express UCCX ,Cisco Meeting Server , WebEx Meeting and WebEx Calling ) ✔ Routing & Switching Network Portfolio incudes ( Cisco ISR Router,ASR Router , Catalyst Switches , Nexus Switches , Cisco SD-WAN Viptela , DNA Cisco SD-ACCESS, ACI ,Unifi Router and Switches ) ✔ Security Portfolio includes ( Fortinet,Fortegate,Palo Alto,SonicWall,Cisco FTD ,ASA,ISE,Sophos Firewall ) ✔ Microsoft Teams Administration and integration with SBC, SIP CUBE.

Hi, I am Progress C. Nkem, a specialist in IT infrastructure support with industry experience in designing, configuring, deploying, documenting, and supporting systems such as enterprise LAN/WAN (routing and switching), Linux servers, VoIP system, Zabbix monitoring system, virtual environments, and Windows Active Directory. - I will remotely help you setup and configure, from scratch, your network (LAN/WAN), VMware ESXi/Proxmox/KVM servers, 3Cx call center server, Linux server, Windows servers, VPNs, and firewalls - Also, I will remotely troubleshoot and resolve issues in any of such systems already existing in your environment - And I will provide you with custom/written scripts that can help automate processes in your environment

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.