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Muhammad U.
$40/hr
100% Job Success
Available now
Offers consultations
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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.
Muhammad U. has worked .
Aleksandar C.
$40/hr
100% Job Success
$9K+ earned
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As a Senior Network Engineer with over 10 years of experience, I specialize in planning, designing, and implementing passive optical and copper networking solutions for diverse clients. My expertise spans various technologies and vendors, including Mikrotik, Ubiquiti, Cisco, Ribbon Communications and Grandstream. I possess in-depth knowledge of TCP/IP, VPN, DHCP, routing protocols, NAT, VLAN, and other essential network concepts. Additionally, I hold multiple certifications, including Mikrotik Certified Routing Engineer (MTCRE), Mikrotik Certified Network Associate (MTCNA), Ribbon Communication Metro & DWDM certifications, Grandstream Certified Specialist - UC Solution, and Certified System Installer for structural cabling. Throughout my career, I've successfully delivered high-quality network solutions tailored to meet clients' specific needs and expectations. I excel in troubleshooting network issues and implementing efficient solutions to ensure optimal network performance. I'm dedicated to fostering strong client relationships and prioritize clear communication and understanding to deliver exceptional results. Let's collaborate to achieve your network infrastructure goals effectively and efficiently.
Aleksandar C. has worked .
AS Net
Associated with
AS Net
$1K+
earned
$65/hr
100% Job Success
$100K+ earned
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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.
Peter S. has worked .
Atilabachwu T.
$10/hr
100% Job Success
$1K+ earned
Offers consultations
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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!
Associated with
Apex Solution
Flavio Y.
$65/hr
100% Job Success
Available now
Offers consultations
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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)
Flavio Y. has worked .
Zeljko J.
$35/hr
93% Job Success
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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 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!
Zeljko J. has worked .
Radion G.
$40/hr
100% Job Success
Offers consultations
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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
Radion G. has worked .
$50/hr
100% Job Success
$100K+ earned
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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
Antoine D. has worked .
Mohammed B.
$55/hr
100% Job Success
Offers consultations
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🛜 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
$55/hr
100% Job Success
$80K+ earned
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I'm proficient in installing , troubleshooting and configuring network device. Working from the client end I have a proficient overview and how jobs should be completed and the standard that said work should meet . With a strong understanding of Cable and Broadband Modems I'm also adept in routers , switches , firewalls and 4G modems as well .