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Serbia
$130/hr
100%
Job Success
$100K+ earned
Offers consultations
Start of list.
End of list.
I am a Senior Network Engineer/Consultant with nearly 20 years of hands-on experience designing, building, securing, and supporting enterprise networks across globe.
My approach is simple: I solve problems fast, apply best practices, and help businesses run reliable, secure, and scalable networks—without overcomplicating things.
What I Do
• Network architecture & design
• Firewall engineering (Palo Alto, Fortigate, Cisco ASA/FTD/Meraki)
• Routing, switching & wireless for small businesses, enterprises, and MSP environments
• Cisco Catalyst Center (DNA Center) automation, assurance, and integrations
• Cloud networking: AWS & Azure
• Zero Trust, segmentation, VPN/IPsec, SD-WAN
• Network audits, troubleshooting & optimization
Core Technologies
• Firewalls: Palo Alto (Pan-OS, Panorama), Fortigate (FortiOS), Cisco ASA, Firepower/FTD, Meraki MX
• Cisco Routing & Switching
• Wireless: Cisco, Meraki, Unifi
• Automation & Tools: Cisco Catalyst Center (DNA Center), Ansible, APIs
• Cloud: AWS networking, Azure networking
Certifications
• CCNP Enterprise
• CCNA Security, Wireless, Collaboration, Enterprise
Why Clients Hire Me
✔ Fast, clear communication
✔ High-quality network solutions that save time, money, and frustration
✔ Strong troubleshooting and root-cause skills
✔ Practical, business-focused engineering—no overengineering
I help companies stabilize, secure, and modernize their networks so they can focus on what matters.
Nenad S.
has worked
.
United States
$90/hr
90%
Job Success
$8K+ earned
Available now
Offers consultations
Start of list.
End of list.
🚀 Top-Rated Senior Network Engineer | 15+ Years of Experience | Proven Success in Network Optimization & Security
Hi, I’m a Senior Network Engineer based in New Jersey, USA, with over 15 years of experience designing, implementing, and securing complex network infrastructures for businesses of all sizes. I specialize in high-performance, scalable, and secure networking solutions that drive operational efficiency and business growth.
🔹 Why Hire Me?
✅ Network Architect & Troubleshooting Expert – Designed and optimized 100+ networks across industries, ensuring 99.99% uptime and peak performance.
✅ Security-First Approach – Implemented robust firewall and security protocols, reducing vulnerabilities by 80%+ for multiple clients.
✅ Cloud & Wireless Networking – Deployed scalable cloud-based and wireless solutions, improving connectivity and efficiency for organizations with 1,000+ users.
✅ Cost Optimization – Saved businesses 30%+ in network costs by restructuring infrastructure and implementing strategic upgrades.
✅ Project Leadership – Successfully led end-to-end implementations for enterprise networks, ensuring on-time and on-budget delivery with minimal disruption.
🔹 Core Expertise
✔ Routing & Switching (Cisco, Juniper, Arista)
✔ Firewall & Security (Palo Alto, Fortinet, ASA, IDS/IPS)
✔ Cloud Networking (AWS, Azure)
✔ Wireless Solutions (Meraki, Aruba, Ubiquiti)
✔ Server Management & Virtualization
✔ Network Automation & Monitoring (Python, Ansible, SolarWinds)
I take pride in delivering customized, high-impact solutions that enhance performance, security, and scalability. Whether you need a network assessment, troubleshooting, optimization, or a full-scale implementation, I am ready to help you achieve your goals.
📌 Let’s discuss how I can add value to your project! Feel free to check out my resume for more details.
🔹 Available for short-term and long-term projects.
Faran B.
has worked
.
Indonesia
$20/hr
100%
Job Success
$5K+ earned
Start of list.
End of list.
Network Engineer with 8+ years of experience, always seek first to understand the client's needs and requirements, find the best solution
I have hands on experience for below vendors and technologies :Cisco, Cisco Nexus, Cisco Meraki, Cisco Catalyst, Mikrotik, Vyos, Fortinet/Fortigate, PFSense, Dell ,Unifi/Edgerouter/Edgeswitch,Controller, Aruba controller, Aruba Switch, Allied Tellesis, Ruijie, Ruckus,Ruckus Switch
- Routing Protocols (L3)and overlay :RIP, EIGRP, OSPF, BGP, MPLS,PBR,VXLAN,VRF, VPNs.
- Switching Protocols L2 : RSTP, MST, VTP, Private VLANs, HSRP, VRRP,LACP.
- VPN Protocols: L2TP, PPTP, S2S IPSec, GRE, OPENVPN.
- Knowledge of Wireless standards and protocols - WPA/WPA2, 802.1x, 802.11a/b/g/n/ac/r/k, CAPWAP, RMM, WMM, X.509, CA Authority, MDM, AAA, Kerberos, Captive Portal
- Ip Addressing Subnetting
- SD-WAN
Certifications :
CCNP Enterprise
CCNP Routing & Switching
Aruba Certified Mobility Professional
CCNA Wireless
Tasnim H.
has worked
.
United States
$80/hr
100%
Job Success
$10K+ earned
Start of list.
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I’m a passionate IT professional with 15+ years of experience designing, deploying, and troubleshooting medium to large-scale enterprise networks - from multi-site data centers to campus infrastructures. For the past 7+ years, I’ve also led high-performing teams to deliver secure, scalable, and optimized solutions.
I specialize in transforming complex enterprise networks into highly available, reliable, and secure environments. My strengths include fast problem-solving, clear communication, and quick adaptability, ensuring projects are completed efficiently and with measurable results.
When you work with me, the buck stops here - I take full ownership to make sure your network challenges are solved and your goals are met.
Mikhail N.
has worked
.
$30/hr
96%
Job Success
$30K+ earned
Start of list.
End of list.
I'm a DevOps Engineer with experience as a network engineer.
I've worked with the following providers AWS, GCP, Digital Ocean, Hetzner.
I'm familiar with Docker and Kubernetes, and for automation I mainly use Ansible and Bash.
My main OS that I've worked with on servers is Linux (Ubuntu, Debian, RHEL).
I can help with most networking tasks either on cloud (VPCs, subnets, routing) or on-premises.
Basic networking tools such as iptables, nftables, tc, and of course ip route.
I'm familiar with VPN protocols and have used it as a server and client
Such protocols are:
Wireguard, OpenVPN, IPSEC/IKEv2 (StrongSwan/Libreswan), SoftEther.
Mohamed A.
has worked
.
$20/hr
100%
Job Success
$7K+ earned
Available now
Offers consultations
Start of list.
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Network Engineer & Architect with 6+ years of experience designing, deploying, and securing enterprise, data center, and cloud networks.
CCNP & MCSA certified, delivering high-availability, cost-efficient, and secure network solutions.
Hands-on expertise with Cisco, Huawei, Juniper, MikroTik, Dell, HP, Ruckus, and UniFi networks, along with firewalls including Palo Alto, Fortinet, Sophos, and Cisco ASA.
I help businesses design, secure, and optimize enterprise and cloud networks. From network design and firewall configuration to VPN setup and complex troubleshooting, I solve your challenges quickly and professionally, ensuring your systems run smoothly and securely.
Certifications:
- Cisco Certified Network Professional (CCNP)
- Cisco Certified Network Associate (CCNA)
- Microsoft Certified Solutions Associate (MCSA)
Tools:
- Nagios
- Cacti
- OpManager
- Zabbix
- PRTG Network Monitor
- Solar Winds NPM
- Packet Tracer
- GNS3
- EVE-NG
- Microsoft Visio
- Lucidchart
Faizan S.
has worked
.
Albania
$39.99/hr
100%
Job Success
$30K+ earned
Start of list.
End of list.
Expert in Mikrotik, Ubiquity, gained from working in a WISP/ISP environment.
Hands-on different types of gear: Meraki, Radwin, SAF, Netonix, Cambium, Mimosa.
Hands-on different monitoring systems: Zabbix, PRTG, UNMS, DUDE.
Planning, configuring and troubleshooting different sizes and types of networks.(Wired and Wireless)
Arditi D.
has worked
.
United States
$150/hr
100%
Job Success
$90K+ earned
Start of list.
End of list.
I’m a senior network and security engineer with 8+ years of hands-on Fortinet experience, specializing in FortiGate, FortiManager, large-scale deployments, and network migrations.
I don’t just configure firewalls, I design, automate, deploy, and stabilize entire environments. My work typically involves complex Fortinet ecosystems with hundreds (or thousands) of devices, where reliability, repeatability, and clean architecture are critical.
I’ve deployed and managed 1,000+ FortiGate / FortiWiFi devices across multi-site environments, built FortiManager policy packages and provisioning templates, implemented zero-touch and low-touch deployments, and automated Fortinet workflows using Python, FortiManager APIs, FortiOS APIs, and SSH.
Clients bring me in when:
Fortinet environments are messy or unstable
Migrations need to be done correctly (not just copied configs)
Scale breaks manual processes
They want answers, root cause analysis, and fixes, not guesswork
I debug first, fix the issue, and then explain exactly why it happened and how to prevent it going forward.
Core Specialties
Fortinet / Network Security
FortiGate & FortiWiFi (40F → 900G, physical & VM)
FortiManager & FortiAnalyzer
SD-WAN (ADVPN, hub-and-spoke, BGP)
IPSec VPN (IKEv1 / IKEv2, cert-based, SAML)
ZTNA with FortiEMS, EMS tags & serial verification
Central NAT, VIPs, IP pools
DNS Database & AD-integrated DNS
UTM: IPS, AV, Web Filtering, App Control
FortiSwitch & FortiAP via FortiLink
Network Migrations
Cisco ASA to Fortinet
Palo Alto to Fortinet
SonicWall to Fortinet
Meraki / Aruba / Cisco switching integrations
Policy cleanup, object normalization, and architecture redesign
Automation, Scripting & DevOps
Python (FortiManager API, FortiOS API, SSH automation)
Bash & Linux administration
Automation for:
Bulk device inventory & reporting
Metadata variable population in FortiManager
Standardized configuration enforcement
Fleet-wide data extraction to CSV
Ubuntu
Azure networking
Monitoring & visibility:
Zabbix
ntopng
NetFlow
Example work:
Built Python automation to pull device data for 1,140+ FortiWiFi devices from FortiManager, export to CSV, and dynamically populate FortiManager metadata variables
Automated SSH-based configuration deployment across large FortiGate fleets not fully managed by FortiManager
Aggregated discovered device data from all FortiGates into centralized reporting for fleet-wide visibility
My preferred approach:
Debug first, explain later
Clear root cause analysis (RCA)
Clean, supportable designs
Minimal vendor hand-holding required
Comfortable working independently or alongside internal teams
Anthony H.
has worked
.
$95/hr
100%
Job Success
Offers consultations
Start of list.
End of list.
🏆 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
Ernest H.
has worked
.
Macedonia
$40/hr
100%
Job Success
$9K+ earned
Start of list.
End of list.
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
.
Associated with
AS Net
$1K+
earned