Hire the Best VPN Specialists

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-ranked Linux Infrastructure and Network Security Specialist with over 15 years of hands-on experience. I have delivered enterprise-grade solutions to clients across multiple industries — 3,000+ hours on Upwork, and I still treat every project like it is the first one. I worked with energy companies, healthcare organizations, fintech platforms, banks, insurance and leasing companies. Some of my work involved GCP cost optimization and SACS-002 compliance for energy sector, zero-breach security implementations for healthcare, and multi-location VPN/firewall solutions for enterprise clients. I am comfortable working with development teams, security specialists, or directly with C-level executives — whatever project requires. My main focus is Linux systems and network security, with strong accent on keeping things stable, secure and well-documented. I have experience with traditional and next-generation firewalls, and I can handle everything from basic routing, switching and ACLs to more advanced stuff like IPS/IDS, inline antivirus, anti-malware, HTTP/HTTPS web filtering, and various VPN types — IPSec (pure or combined with GRE, L2TP), SSL VPN, OpenVPN, WireGuard, client-to-site, site-to-site. What I bring: 15+ years Linux Systems Administration (RHEL, Ubuntu, Debian, Rocky, Alma) 4+ years Cloud Architecture — GCP and AWS, average 30% cost reduction achieved for clients 5+ years Cybersecurity, compliance and vulnerability assessment 4+ years Virtualization — KVM, VMware, Hyper-V, Proxmox LAMP/LEMP stacks, load balancing, high availability, zero-downtime deployments 99.99% uptime track record across all long-term engagements I take security seriously — both technical and business side. I am willing to sign NDA and I treat client data with full confidentiality. If you need someone who will take ownership of your infrastructure and not just execute tickets, feel free to reach me out!

Network & Security Engineer (CCNP) | Network Administration | MikroTik (MTCNA) | Fortinet | pfSense | VPN | Firewall | Monitoring | IT Support | Windows server I help businesses design, troubleshoot, and secure reliable networks so operations stay stable and risk stays low. I’m a hands-on Network & Security Engineer with 9+ years of experience delivering real-world solutions across Cisco, MikroTik, Fortinet, pfSense, VPNs, and monitoring. I focus on scalable, documented, long-term fixes (not temporary patches), and I communicate clearly throughout the project. What I can help you with • Network Design & Troubleshooting (LAN/WAN/Wi‑Fi): routing, switching, VLANs, inter-VLAN routing, performance tuning, site-to-site connectivity • Firewall Setup & Hardening: Fortinet / pfSense / Cisco ASA, NAT, security policies, segmentation, best practices • VPN Setup: IPsec / SSL / Site-to-Site / Remote Access, user access control, multi-site tunnels, secure remote work • MikroTik RouterOS Services: routing, firewall, bandwidth/QoS shaping, ISP/WISP setups, wireless optimization, network troubleshooting • Server & Virtualization Support: Windows/Linux administration, VMware / Hyper‑V (support, integration, migrations) • Cloud Support: AWS / Google Cloud (GCP) connectivity, migration support, hybrid networking • Monitoring & Alerts: PRTG / Zabbix, dashboards, alerts, proactive issue detection 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 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.

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🔹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)