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.

🏆 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

I help businesses design, troubleshoot, and secure reliable networks so operations stay stable and risk stays low, with 9+ years of hands-on experience across Firewall, VPN, SD-WAN, and pfSense environments. Network & Security Engineer (CCNP) | MikroTik (MTCNA) | Fortinet | Cisco | Monitoring | Windows Server | Cloud I focus on scalable, documented, long-term fixes — not temporary patches — and communicate clearly throughout every project. What I can help you with • Network Design & Troubleshooting — LAN/WAN/Wi-Fi, VLANs, inter-VLAN routing, BGP/OSPF, STP, subnetting, site-to-site connectivity, performance tuning • Firewall Hardening — Fortinet (FortiGate), pfSense, Cisco ASA, UniFi — NAT, DMZ, segmentation, security policy design • VPN & Secure Remote Access — IPsec, SSL, WireGuard, OpenVPN, Xray/V2Ray — site-to-site and remote-access tunnels for distributed teams • SD-WAN & Multi-Site Connectivity — centralized policy management, WAN optimization, resilient failover across branch locations • MikroTik RouterOS & WISP Operations — routing, firewall, QoS/bandwidth shaping, wireless optimization, ISP-grade troubleshooting • Network Automation & Scripting — Python, Git version control, automated provisioning and configuration deployment • Security Assessments & Compliance — vulnerability assessments, penetration test reporting, and hardening aligned to NIST CSF 2.0, CIS Controls v8, and ISO/IEC 27001 • Endpoint & Identity Security — Microsoft 365/Intune device management, endpoint hardening, Active Directory, DNS/DHCP • Monitoring & Alerting — Zabbix, PRTG, SNMP dashboards, proactive issue detection and reporting • Servers & Virtualization — Windows Server, Linux, VMware ESXi, Hyper-V, disaster recovery/backup planning • Cloud & Hybrid Networking — AWS and GCP connectivity, hybrid architecture, migration support Example results delivered • Ransomware recovery + security hardening: recovered 91% of encrypted files and implemented protective controls • Multi-site network (50+ employees): reduced downtime 87% and saved $15,000/year through optimized architecture • Secure VPN rollout (3 countries): enabled remote work for 30+ users across multiple locations How I work • Quick assessment → clear plan → controlled changes → testing → full documentation • Secure-by-default approach and clean, maintainable configurations • Available for one-time projects, ongoing managed services, and urgent troubleshooting Send me a short summary of your environment (devices, number of sites/users, ISP links, current issues/goals), and I’ll reply with a practical plan and next steps.

Network & IT Infrastructure Expert | Mikrotik | VPN | Linux | Cloud With 25 years of experience in IT infrastructure and network engineering, I specialize in designing, securing, and optimizing network systems for businesses of all sizes. Whether you need a reliable VPN solution, a secure network setup, or an optimized server infrastructure, I can help you achieve your goals efficiently. What I Offer: Mikrotik & Network Configuration – Routing, Firewall, VLANs, QoS, Wireless VPN & Secure Networking – WireGuard, OpenVPN, IPsec, GRE tunnels Linux System Administration – Ubuntu, CentOS, Debian, server automation Cloud & Backup Solutions – Veeam, Rsync, ZFS, Proxmox, Disaster Recovery Server & API Hosting – OpenStreetMap servers, self-hosted solutions Troubleshooting & Performance Optimization – Network monitoring, security hardening Web Development – Next.js websites, WordPress to Next.js migrations I have worked with businesses, startups, and enterprise clients to ensure their IT infrastructure is secure, scalable, and high-performing. My approach is straightforward – I analyze, optimize, and deliver solutions that just work. Let’s connect and discuss how I can help with your project!

🔹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)

With over five years of experience in the IT industry, I’ve developed solid expertise across some of the most essential areas of modern IT infrastructure. My background includes more than two years in IT support, working extensively with RMM platforms such as Ninja and ScreenConnect, as well as ticketing systems including ServiceNow, Freshservice, and Spiceworks. I specialize in networking, supported by certifications in Fortinet technologies and the CCNA, giving me hands-on experience with network configuration, security, and troubleshooting. In addition to this, I’ve worked as a remote System Administrator, managing servers, user environments, system performance, and general infrastructure operations. I bring a strong mix of technical skill, reliability, and problem-solving ability, and I’m committed to delivering high-quality work while helping clients maintain secure, stable, and efficient IT environments.

Hello! I am a highly skilled Fixed-Access Network Engineer & IT Freelancer with 9+ years of experience in IT support, networking, and telecommunications engineering. I specialize in deploying and managing networking equipment, troubleshooting IT issues, and setting up CCTV security systems. 💡 How I Can Help You: ✔ Remote IT Desktop Support (via AnyDesk or TeamViewer) ✔ Network Setup & Troubleshooting (Routers, Switches, Firewalls) ✔ CCTV Installation & Configuration (Various Brands & Models) ✔ Telecommunications Engineering (Fixed-Access Networks, Fiber Optics) 🔹 Why Choose Me? ✅ 9+ Years of Proven Experience in IT & Telecom ✅ Reliable & Efficient Problem-Solving for Remote & On-Site Support ✅ Strong Technical Expertise in Hardware, Software, & Networking ✅ Excellent Communication & Customer Service Skills 🚀 Let’s connect and discuss how I can support your IT needs efficiently. I am available for one-time projects, ongoing support, and long-term collaborations. 💬 Message me now to get started!

🛜 Wireless Engineer Consultant | CCIE Wireless #67142 | ECSE | Ekahau Specialist | PMP 🛜 Over 8 years designing, deploying, and supporting enterprise wireless networks for RV parks, hospitality venues, hotels, and major international events. 🛜 Services: WiFi network design & site surveys with Ekahau heatmapping, PTP/PtMP backhaul design (Cambium, Ubiquity, Tarana), Cisco infrastructure deployment, network optimization, and advanced troubleshooting. 🛜 Cisco Technical Support Engineer | Wireless Network Consultant 💡What can I help you with: 💼 Full-time: Wireless network design & consulting, enterprise infrastructure deployment, site survey operations, project leadership ⏱️ Part-time: Network troubleshooting & optimization, technical support, remote configuration, consulting & advisory 🔧 Projects: Ekahau heatmapping & site surveys, PTP/PtMP backhaul design (Cambium, Ubiquity, Tarana), Cisco configuration, technical documentation

With over 7 years of hands-on experience, I design, deploy, and manage enterprise-grade network, security, and cloud infrastructures across multi-vendor environments. My work spans diverse industries — including hospitality, pharmaceuticals, SMEs, and large-scale data centers — delivering solutions that are secure, scalable, and built for long-term resilience. **Networking & Infrastructure** I build and manage end-to-end network environments using Cisco, Huawei, Aruba, MikroTik, Fortinet, Palo Alto and more — covering switching, routing, WLAN controllers, and server infrastructure. My deployments range from hotel and resort networks to enterprise data centers, always engineered for high availability and performance. **Cybersecurity & Firewall Engineering** I have deployed 100+ FortiGate firewalls in high-availability configurations, implementing Hub-and-Spoke VPNs, dual-ISP SD-WAN, and SLA-based traffic optimization across enterprise environments. I manage Cisco Firepower Threat Defense (FTD) NGFWs via FMC across tiered networks, and have hands-on deployment experience with Sophos, OPNsense, WatchGuard, OpenVPN, and WireGuard for both site-to-site and remote access connectivity. My security practice extends to Cloudflare Application Security, Cloudflare SASE, FortiSASE, Zscaler, and CrowdStrike EDR/NDR/XDR, with all engagements guided by NIST and HIPAA frameworks. **SD-WAN & VPN** Delivered SD-WAN implementations featuring Hub & Spoke topologies, dual-ISP failover, and SLA-driven traffic steering. Extensive experience with SSL VPN, IPsec, OpenVPN, WireGuard, and multi-vendor VPN client configuration across complex enterprise networks. **Virtualization** Experienced in virtual environment management including VM deployment, migration, and cloning via vSphere Client across enterprise server infrastructure. Certifications HCIP Datacom – Advanced Routing & Switching CCNP Security Fortinet NSE 4 & NSE 5 Open to collaborating with organizations looking to design, secure, and optimize their network infrastructure. Let's build something resilient.

- juniper, cisco, iptables, nortel, avaya - fortigate, juniper, pfsense, mikrotik - ddos, netflow, scrutinizer - Python, TwistedMatrix - nginx, haproxy, letsencrypt - Openstack, kvm, ovs, ovn