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Bachelor of Engineering in Electronics and Telecommunication with 20 years of experience across Firewalls, Networking, VoIP, Wireless, Datacenter, Servers, and related technologies. Security: Cisco ISE, Cisco Firepower, Cisco ASA 5500, Cisco Meraki, Palo Alto, Check Point, Sophos, FortiGate, Dell SonicWall, Juniper, PFSense, Rapid7, WatchGuard, Barracuda SIEM: SolarWinds, Wazuh, Splunk Networking: Cisco, HP,/Aruba, Brocade, Juniper, Zylex, MikroTik, GPON/EPON, Ubiquiti, Microtik VoIP: Cisco, Avaya, Asterisk, FreePBX, 3CX, Microsoft Teams, Grandstream, Fusion PBX Wireless: Cisco, Ubiquiti, Mojo (AirTight), Aruba Video Collaboration: Cisco TelePresence MX200/300/SX20, TelePresence Server, TelePresence Conductor, Avaya Scopia XT Data Center: VMware vSphere 7.x, Cisco UCS, Microsoft Hyper-V, Citrix XenServer, Oracle VirtualBox Applications: Microsoft SCCM, MS SQL Server, WSUS, RADIUS Server, Squid Proxy Server, KeePass, WordPress, Intune Cloud Platforms: Office 365, AWS, Google Cloud Platform, Microsoft Azure Storage: NetApp, Western Digital, Synology Routing Protocols: OSPF, EIGRP, BGP, RIP Network Tools: Wireshark, SolarWinds, NetFlow, PRTG, Cacti, Scrutinizer, LogZilla, Wazuh Operating Systems: Windows Server 2012/2016/2019, CentOS, Ubuntu

🔹SENIOR NETWORK ENGINEER | NETWORK SECURITY, PRIVATE CLOUD & INFRASTRUCTURE🔹 Senior Network Engineer with 6+ years of experience designing, securing, and operating enterprise networks, private clouds, and IT infrastructure. I've built private clouds for clients of a global managed hosting provider with presence in 10+ data centers and over 2 Pbps of global uplink capacity, and delivered network and security solutions across a wide range of enterprise environments. Whether you're designing new infrastructure from scratch, upgrading and modernizing an existing network, hardening your security posture, or migrating workloads to the cloud, I bring senior-level engineering with a focus on clean design, security, and long-term reliability. 🌐 Network Engineering & Design Enterprise, data center, and multi-site network design and upgrades. Routing: BGP, OSPF, EIGRP, IS-IS, MPLS, VXLAN Switching: VLANs, STP, LACP, MLAG, VRRP, HSRP, QoS, EVPN-VXLAN fabric Load Balancing: HAProxy, NSX-T, NSX-V 🔐 Network Security & Firewalls Vendors: Fortinet (FortiGate), Palo Alto, Juniper SRX/vSRX, Sophos (UTM, XGS), SonicWall, Zyxel, pfSense, OPNsense Services: NGFW rules, NAT, segmentation, IPS/IDS, DDoS mitigation, Zero Trust ☁️ Private Cloud & Virtualization Hypervisors: VMware (ESXi, vCenter), Proxmox, Hyper-V, KVM, Xen Virtual networking & security: VMware NSX-T / NSX-V, pfSense, OPNsense, Sophos 🌩️ Cloud & Hybrid Networking AWS: VPC, Transit Gateway, Site-to-Site VPN, Security Groups, hybrid connectivity Also experienced with Azure, Vultr, DigitalOcean, Linode 🔗 VPN & Secure Remote Access IPsec, OpenVPN, WireGuard, SSL VPN, GRE, L2TP, DMVPN, SD-WAN Enterprise VPNs, hybrid cloud connectivity, secure remote workforce 📡 UniFi / Ubiquiti Deployments UniFi network design and deployment for offices and multi-site businesses UniFi switches, access points, gateways, Dream Machine 🧰 Vendors & Platforms Cisco (Catalyst, Nexus, Meraki, ISR, ASR), Juniper (MX, vMX, EX, QFX, SRX), Huawei (CloudEngine), Fortinet, Palo Alto, Sophos, SonicWall, Zyxel, Ubiquiti/UniFi, VMware ⚙️ Automation, Monitoring & Documentation Automation: Python (Netmiko, NAPALM), Ansible, Terraform, REST APIs Monitoring: PRTG, Grafana, LibreNMS, Zabbix, Cacti, FastNetMon Documentation & IPAM: NetBox, phpIPAM 🐧 Linux Ubuntu, Debian, CentOS, FreeBSD, OpenBSD 📜 CERTIFICATIONS Cisco: CCNP, CCNA 💼 SERVICES • Network Design & Optimization (Enterprise, Data Center Fabric, Private Cloud) • Firewall & Security Hardening (NGFW, IPS/IDS, Zero Trust) • Private Cloud Build & Migration (VMware, Proxmox) • Cloud & Hybrid Networking (AWS VPC, Transit Gateway, Site-to-Site VPN) • VPN & Secure Remote Access (IPsec, SSL, SD-WAN, WireGuard) • UniFi Network Design & Deployment • Network Troubleshooting & Performance Tuning • Network Automation & Monitoring (Ansible, Python, APIs)

Top Rated IT Infrastructure & Security Engineer with 700+ hours on Upwork and a 100% Job Success Score. I keep phone systems, firewalls, and servers running for small businesses and MSPs — so your team stays connected, protected, and productive. What I do: ✔ IT Support & Helpdesk — remote troubleshooting, ticket handling (Tier 1–3), user onboarding/offboarding, printer and endpoint issues, and ongoing support contracts for businesses and MSPs ✔ 3CX VoIP — new deployments, V18→V20 migrations, SIP trunk configuration (Twilio, Broadvoice), IVR, queues, DID routing, integrations, and troubleshooting ✔ FortiGate firewalls — SSL-VPN setup for remote teams, firewall policies, split tunneling, secure remote access, and web filtering ✔ VMware virtualization — ESXi and vCenter administration, VM provisioning, migrations (P2V/V2V), performance troubleshooting, and host maintenance ✔ Backup & disaster recovery — Veeam configuration, backup health checks, and restore testing for VMware environments ✔ Infrastructure & Information Security — network segmentation (VLANs), firewall hardening, VPN security, access control, MFA rollout, patch management, and security best practices to protect your business data ✔ Microsoft 365 & Intune — tenant administration, Exchange Online, device enrollment, and MDM policies ✔ Networking — network design & deployments, troubleshooting, and network optimization ✔ Server administration — Windows Server, RHEL/Linux, Active Directory, and day-to-day IT support How I work: I follow ITIL-aligned practices — structured incident and change management, proper documentation, and root-cause fixes instead of quick patches. Fast response times, clear documentation after every job, and plain-English updates — no jargon, no disappearing mid-project. I've handled everything from single urgent fixes to long-term support contracts, and my clients keep coming back because things get done right the first time. Let's talk: Message me with your issue — I'll tell you honestly whether I can fix it, how long it will take, and what it will cost. No overselling, no surprises.

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.

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 and Cloud Systems Administrator with 5+ years of experience in IT infrastructure. Proficient in: | Networking & Security | Linux & Windows Servers | Hypervisors | AWS& Azure | M365 |Storage Solution Here is a detailed breakdown of my technical expertise: Infrastructure & Networking Networking: I have extensive experience with L2/L3 Switches from vendors like Cisco and Huawei, as well as other managed and unmanaged switches. Firewalls: My security expertise includes working with a wide range of firewall solutions from Cisco, Palo Alto, FortiGate, Huawei, Mikrotik, and Sophos. Wireless: I'm proficient in deploying and managing Wi-Fi solutions from Ubiquiti (UniFi), Ruckus, TP-Link, and Tenda. VPNs: My skills extend to implementing secure remote access using OpenVPN, WireGuard, and Cisco AnyConnect. Network Monitoring: I use industry-standard tools like Zabbix, Nagios, Checkmk, Cacti, and Solaris to ensure network health and performance. Systems & Virtualization Microsoft: I have a strong background in Windows Servers, Active Directory, Office 365, Azure AD, SharePoint, Exchange Online, and Teams. Linux: My Linux administration skills cover a variety of distributions, including Red Hat, Debian, SUSE, Kali Linux, CentOS, Ubuntu, and Fedora. Virtualization: I am an expert in virtualization technologies, including VMware vSphere, Hyper-V, Proxmox VE, Citrix Xen, and XCP-ng. Containerization: I am proficient in Docker, Kubernetes, and OpenShift for modern application deployment. Storage Solutions: I have hands-on experience with Synology NAS, SAN, Unraid, and TrueNAS. Mail Servers: My skills in email management include working with MS Exchange, Modoboa, Postfix, and Dovecot. Cloud & Security Cloud Computing: I am well-versed in cloud services, including SaaS, PaaS, and IaaS, and have practical experience with AWS, Azure, Hetzner, and Contabo. Endpoint Protection: My security skills include managing endpoint protection solutions like EDR, XDR, CrowdStrike, Falcon Sensor, Vipre, and ESET. SIEM Solutions: I have experience with Wazuh and Splunk for security information and event management. Applications & Tools Linux Applications: I have a strong command of common Linux applications such as Nginx, Apache, Gitlab, dhcpd, Bind9, and PowerDNS. Ticketing Systems: I'm proficient in using ticketing and project management tools like Redmine and Jira. VoIP: My experience includes working with VoIP platforms such as Vicidial and Issabel.