Top Rated Plus IT Professional with 15+ years of enterprise experience helping businesses design, troubleshoot, secure, and optimize networks, Microsoft 365 environments, Windows servers, VPNs, and cloud infrastructure.
I have worked with leading organizations including Accenture, Hewlett Packard (HP), Cisco, and Australian Managed Service Providers such as BaseHost, MACIT, and Easy Internet Services, supporting businesses ranging from small offices to large enterprise environments.
I specialize in helping businesses keep their IT infrastructure secure, reliable, and running efficiently through proactive support and practical solutions.
Core Expertise
Managed IT Services (MSP)
Level 1–3 Help Desk Support
Microsoft 365 Administration
Active Directory & Entra ID
Windows Server Administration
Windows 10/11 & macOS Support
User Onboarding & Offboarding
VPN Configuration & Troubleshooting
Printer & Peripheral Support
Remote Desktop Support
Email Migration & Administration
Networking
Cisco Routing & Switching
Enterprise Wireless (Cisco & Aruba)
VLANs, STP, OSPF, BGP
VPN & Site-to-Site Connectivity
Firewall Configuration
DNS, DHCP & TCP/IP
Cisco Meraki
Network Troubleshooting
Network Documentation
Cloud & Infrastructure
Microsoft 365
Exchange Online
SharePoint
Teams
Intune
Azure Fundamentals
Google Workspace
Virtual Machines
Backup & Disaster Recovery
Automation
Python for Network Automation
Ansible
Network Monitoring Scripts
Configuration Automation
Operational Reporting
Process Automation
Services I Offer
✔ Microsoft 365 Administration
✔ Windows & macOS Support
✔ Active Directory & Entra ID
✔ Network Troubleshooting
✔ VPN Setup & Support
✔ Cisco Networking
✔ Firewall Configuration
✔ Python Network Automation
✔ WordPress Support
✔ Technical Documentation
✔ Remote IT Support
IPv6
VPN
Python
Virtual LAN
Cisco Router
ITIL
JNCIA-Junos
Network Engineering
Cisco IOS
Aruba
Ansible
Juniper
Cisco Certified Network Associate
Gil A.
Lipa City, Philippines
$100/hr
4.8
115 jobs
Top Rated Plus, Experienced Network Engineer & Network Operations Manager
With ⭐️ over a decade ⭐️ of experience in network engineering and operations, I bring a wealth of expertise to meet your business needs. As a seasoned Network Engineer, I have successfully handled clients across the globe, ensuring robust and efficient network solutions.
▶︎ PROFESSIONAL BACKGROUND:
Former Global Network Operations Manager at one of the largest BPOs worldwide.
Led a team of network professionals to manage and optimize global infrastructures.
▶︎ SPECIALIZATIONS:
1. ⭐️ Unifi/Ubiquiti: Cloud gateways, routers, switches, access points, and cameras.
2. Cisco: Routers, switches, access points, firewalls (ASA and FTD), ISE, SD-WAN, DUO, and Umbrella.
3. ⭐️ VPN Expertise: AnyConnect, Secure Client, Wireguard, OpenVPN, IPSec VPN, and SSL VPN.
4. Meraki: Access points, switches, and routers.
5. Palo Alto Firewalls
6. Sonicwall Firewalls
6. Linux Servers
7. Synology NAS
▶︎ CERTIFICATIONS:
✅ CCNP
✅ CCNA Security
✅ Lean Six Sigma Yellow Belt
▶︎ WHY CHOOSE ME?
Proven track record of delivering high-quality network solutions.
Extensive experience with a variety of network technologies and platforms.
Committed to providing exceptional service and support to ensure your network's success.
Microsoft Azure
Cisco ISE
Cisco Certified Network Associate
Cloud Engineering
Ansible
Troubleshooting
Cisco Router
Cloud Implementation
Cisco Meraki
Cisco Certified Internetwork Expert
Cisco WLC
Cisco IOS
Cisco ASA
Cloud Architecture
Amazon Web Services
Mohamed A.
Cairo, Egypt
$30/hr
4.9
81 jobs
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.
Linux
VPN
Network Engineering
Linux System Administration
Ubuntu
Debian
Wireshark
OpenVPN
Network Administration
MikroTik
System Administration
OpenWrt
DevOps
AWS Systems Manager
Ansible
A.K.M. Tohidur R.
Dhaka, Bangladesh
$100/hr
5.0
141 jobs
As a highly skilled and experienced professional with over 08+ years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project.
My few hands-on experiences is:
⭐Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG
⭐Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution
⭐ Expert in configuring, managing, and troubleshooting Cisco routers, switches, FTD, FMC, and ASA firewalls.
⭐ Expert in configuring, managing, and troubleshooting Fortigate, Sophos, Check Point, SonicWall, Palo Alto, pfSense, OPNsense & Huawei firewalls,
⭐Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations.
✅Cisco, Tp-Link, Aruba, Fortinet, Ubiquiti, Planet, Huwei switch configurations.
⭐Proficient in configuring, managing, and troubleshooting Unifi Enterprise Fortress Gateway, UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices.
⭐Expert in Linux administration, with expertise in Ubuntu, Red Hat, openSuse, CentOS, Debian, and Kali Linux distributions.
⭐Expert in Windows server administration , Active Directory management, Exchange Server administration, DNS configuration, DHCP implementation, and Windows operating system support.
⭐Experienced in managing and configuring virtualization platforms including HYPER-V, VMware ESXi, VMware Workstation, KVM, VirtualBox, and Proxmox.
⭐Servers: HP Proliant Servers, Dell/EMC Servers, IBM
⭐MikroTik Routers configuration
✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH and Digital Ocean
⭐VLSM/subnetting of small to large enterprises
⭐VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP), Spanning Tree (STP, PVST++, MSTP), and FHRP Protocols
⭐IPV4 & IPV6 IP planning, DHCP, NAT/PAT configuration and IP helper address
⭐static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration
⭐Layer-3 Redudent/backup links Using HSRP, VRRP
⭐Port security, ACL( access list) configuration
⭐Network troubleshooting and optimization
⭐VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OPENVPN , wireguard & DMVPN)
⭐Advanced Excel skills, including macro, VBA, VLOOKUP, and other automation techniques
⭐Network automation script for any cisco and fortigate devices using python
⭐ Skilled in automation using Bash/Shell scripting
✅Overlay Networks VPN Expertise: Proficient in configuring and managing various overlay network VPNs, including ZeroTier, Tailscale, WireGuard, SoftEther VPN, Netbird , Netmaker, OpenVPN Cloud, I, Twingate and PeerVPN for secure, scalable, and decentralized networking, enabling seamless remote access, team collaboration, and encrypted communications across distributed systems.
✅Beryl AX and Flint Router Configuration Expert ( Mini Router, Travel Router, Home Wi-Fi, cellular Router) like GL-MT6000, GL-AXT1800, GL-MT3000, GL-A1300 etc
✅Cisco Duo: MFA, 2FA, SSO, Identity Security Integration, Windows Logon, RDP, Microsoft AD, VPN Authentication.
Firewall
Network Security
Network Administration
Cisco Certified Network Professional
Linux
Windows Server
System Administration
FortiGate Firewall
Linux System Administration
Cisco Certified Network Associate
PfSense
Ubiquiti
Cisco
VPN
Fortinet
Ummer I.
Lahore, Pakistan
$60/hr
4.9
72 jobs
👑 Expert Vetted - Top 1% of talent on Upwork
⭐️ Top Rated Plus - Highly rated for work on large projects
🎯 100% Job Success Score
🕒 3000+ hours on Upwork
✅ 14+ years of experience
✅ 50+ projects delivered
✅ Excelling in delivering Fortune 500-scale projects
Over 13 years of extensive experience in Cloud Environment, Corporate Network, FinTechs and ISPs.
In Summary, my credentials include,
Cloud Expertise
Amazon Web Services (EC2, S3, VPC, IAM, Security-Groups, DirectConnect, Transit Gateway, WAF etc)
Oracle Cloud Infrastructure (VCN, Subnets, Route Tables, Compute, IAM etc)
Google Cloud Platform (IAM, Compute Engine, Firewall, Partner Interconnect, VPN, VPC etc)
Security:
Cisco FMC, FTDs & ASA, Palo Alto Network Firewalls and Panorama, Fortinet, FortiManager, Fortigate Firewalls, F5 BigIP LTM WAF, IPSec & Remote Access VPNs, NGIPS, Threat Prevention, URL Filtering, Cisco ISE, Cisco DUO, TACACS & Radius Authentication, SIEM, Cortex XDR, Wazuh, Rapid7, Security Onion
Routing:
OSPF, BGP, MPLS, Policy Base Routing using Route Maps, TCP/IP, Layer 3 Redundancy (HSRP), IP Spoofing, Virtualization (VRF), IP SLA, NAT/PAT, GRE Tunnels.
Switching:
Nexus VPC, Cisco Stack, Catalyst VSS, VXLAN, Spanning Tree Protocol, EtherChannels (LACP, PAGP), Access-Maps.
DevOps:
Terraform, Ansible, Python, Git, BitBucket, Docker, Jenkins, Linux, Netbox, Wireshark
PCNSE, PCNSA
CCNA 200-120
CCNA Security 640-554
CCNP R & S
Network Security
Firewall
Network Design
Ansible
Palo Alto Firewalls
Cisco Firepower Threat Defense
Google Cloud Platform
Amazon Web Services
Oracle Cloud
Network Engineering
VPN
Cisco ISE
Cisco Certified Network Professional
Fortinet
FortiGate Firewall
Zeljko J.
Kraljevo, Serbia
$35/hr
4.9
25 jobs
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!
Network Engineering
Linux
VMWare
VMware Administration
VMware ESX Server
MikroTik
Cisco
Network Monitoring
Network Administration
VPN
Linux System Administration
Network Design
Network Security
Backup
Firewall
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