I aspire to contribute to an organization that recognizes my strengths, enhances my skills, and fosters professional growth in the field of networking. With around 10 years of experience in the IT industry, I bring expertise in networking, wireless technologies, security, and SD-WAN.
As a versatile and adaptable professional with over a decade of experience in the private sector, I have extensive hands-on knowledge of routers, switches, firewalls, and a broad range of networking solutions. My technical proficiency covers Cisco Nexus Switches, Cisco Meraki devices, Cisco Wireless, Cisco Prime, Cisco WAAS, Aruba Wireless, Aruba ClearPass (CPPM), Aruba Central, Aruba Gateway, Palo Alto Firewalls, Panorama, Prisma SD-WAN, Fortinet products (FortiGate, FortiSwitch, FortiAP, FortiExtender, FortiManager, FortiAnalyzer, FortiCloud), F5 BIG-IP, Silver Peak SD-WAN, Ubiquiti UniFi solutions, Cradlepoint, VMware Cloud, OpsRamp, MS Visio, ServiceNow, and various network-related projects.
I am a dedicated, motivated, and adaptable professional with a positive attitude, strong problem-solving skills, and a commitment to maintaining high professional standards. My ability to quickly grasp new technologies, communicate effectively, and take on challenges allows me to work independently or as part of a team.
Technical Expertise
Routing
OSPF, EIGRP, eBGP, iBGP, VRF, Static & Dynamic Routing, Cisco Routers, Cisco Meraki Appliance, Cisco WAAS, Ubiquiti UniFi Gateway
Switching
VLANs, Port Security, Trunking (802.1q), EtherChannel, VTP, STP, MST, RSTP, PVST
Inter-VLAN Routing, CEF, HSRP, VRRP, GLBP, PoE, SPAN, MAC Table, VSS, vPC, Flex-Link
Cisco Catalyst & Nexus Switches, Cisco Meraki Switches, Ubiquiti UniFi Switches
Security
Policy-based & Route-based VPN, AAA, ACLs, Cisco ASA, FortiGate, Palo Alto Firewalls, Sophos Firewalls
Panorama, Aruba CPPM, Aruba Gateway, Cisco Meraki Firewall (L2/L3 Security), NAT, SD-WAN
IP Source Tracking, OpenVPN, pfSense Firewall, UniFi Gateway
Wireless
Cisco Wireless LAN Controller (WLC), Cisco Prime, Cisco DNA, Cisco Meraki, Aruba Central
Aruba WLC, Aruba CPPM, WLAN, Cisco AP, Cisco Meraki AP, Aruba AP, Mist AP, UniFi AP
Network Monitoring & Tools
ServiceNow, OpsRamp, Remedy, JIRA, ScienceLogic, SolarWinds
Certifications & Professional Qualifications
Cisco Meraki Solutions Specialist (ECMS)
CCIE Enterprise Infrastructure
Managing Campus Networks with Aruba Central
Cisco Meraki Network Associate (CMNA)
Aruba Mobility Fundamentals
Palo Alto Networks Certified Network Security Engineer (PCNSE)
NSE 1/2/3/4 Network Security Associate
Silver Peak Technical Sales Professional, Silver Peak SD-WAN
Cisco Certified Network Associate (CCNA)
Firewall Vendors:
Cisco (Cisco ASA, Firepower, Meraki MX)
Palo Alto Networks (PA-Series, Prisma Access, Panorama)
Fortinet (FortiGate, FortiManager, FortiAnalyzer)
Check Point (Quantum Security Gateway, Harmony)
Sophos (XG Firewall, SG UTM)
WatchGuard (Firebox Series)
SonicWall (NSA, TZ Series)
Juniper Networks (SRX Series)
Barracuda (CloudGen Firewall)
Zscaler (Cloud Security)
Forcepoint (Next-Gen Firewall)
Hillstone Networks (A-Series, X-Series)
Huawei (USG Firewall)
Sangfor (NGAF – Next-Gen Application Firewall)
F5 Networks (BIG-IP Advanced Firewall)
McAfee (Trellix) (Network Security Platform)
Cyberoam (UTM Firewall)
Netgate (pfSense)
Ubiquiti (UniFi Security Gateway)
DrayTek (Vigor Security Firewalls)
Lancom (R&S Unified Firewalls)
GajShield (Next-Gen Firewall)
Versa Networks (SASE & SD-WAN)
Cato Networks (SASE)
Hillstone Networks (Next-Gen Firewall)
OPNsense (Open-source Firewall)
Clavister (Secure SD-WAN & Firewalls)
ZYXEL (ATP, VPN, USG FLEX Firewalls)
Perimeter 81 (Cloud Firewall & SASE)
Networking Vendors
Cisco (Catalyst, Nexus, ISR, ASR, Meraki)
Aruba (HPE) (Aruba Central, ClearPass, Instant APs, Switches)
Juniper Networks (EX, QFX, MX Series)
Extreme Networks (Summit, VSP, Fabric)
Hewlett Packard Enterprise (HPE) (FlexNetwork, Aruba Switches)
Brocade (Now Broadcom) (ICX, MLX Series)
Ubiquiti (UniFi Switches, Dream Machine, EdgeMax)
MikroTik (RouterBOARD, Cloud Core Router, Switches)
Dell EMC Networking (PowerSwitch, VxRail)
TP-Link (Omada, JetStream Switches)
Huawei (CloudEngine Switches, NetEngine)
Netgear (ProSAFE Switches, Orbi, Insight Managed)
Nokia Networks (Service Routers, AirScale)
Zyxel Networks (Nebula, GS Switches)
Ruckus Networks (CommScope) (ICX Switches, SmartZone)
Ciena (Blue Planet, Adaptive Networks)
Broadcom (StrataXGS Switches, Tomahawk)
Arista Networks (CloudVision, EOS Switches)
Radware (Alteon Application Switches)
Cradlepoint (NetCloud SD-WAN, Wireless Routers)
Silver Peak (HPE) (SD-WAN EdgeConnec
Silver Peak (HPE) (SD-WAN EdgeConnect)
Cato Networks (SASE & SD-WAN)
Versa Networks (SD-WAN, Secure Networking)
With my extensive experience and deep technical expertise, I am confident in my ability to deliver effective networking, security, and cloud solutions while continuously adapting to new technologies and industry trends.
Aruba
Cisco Meraki
Network Engineering
Network Administration
Network Security
Fortinet
Computer Network
Cisco Certified Network Associate
Palo Alto Firewalls
Cisco
Cisco Router
Engineering & Architecture
SonicWall
UniFi
Ubiquiti
Md Norul A.
Dhaka North City Corporation, Bangladesh
$40/hr
5.0
164 jobs
I am a Dynamic, Dedicated, Passionate and Quickly Adaptable Freelancer with Technological innovations. I am a 🏅Upwork-Skill-Certified Freelancer with ✅100% JSS ✅ 70%+ Long-Term Clients ✅ 80%+ Clients Recommendation ✅ 90+ Active and Completed Jobs with Positive Feedback🏅Architect Certified on Sophos, Fortinet Firewalls and Endpoints Managements ✅ Others Certification on Network and Security✅ Strong and long Experiences on Fortinet, Sophos, SonicWall, Palo-Alto, PFSense Infrastructures Deployments, Migration and Managements✅ Any kinds of Wireless and Voice Solution Deployments✅ Network, System Security & Compliance Managements✅ Strong Experience on Routing & Switching🏦 Long-Experience with MSP, Corporate and Solution/Service-Provider Sectors. 🏦 Already worked with 90+ clients from different regions such as Asia, Africa, US, Europe etc.
🎖️Certifications (Completed & Enrolled)
• Upwork Skill Certification - Customer Service.
• Certified Architect by Sophos and Fortinet.
🏅 Sophos Certifications:
• Sophos-Firewall v19.5-Engineer.
• Sophos Firewall v19.5-Architect.
• Sophos Firewall v19.5 to v20.0 Certified Architect Delta (AU80).
• Sophos Firewall v19.5 to v20.0 Certified Engineer Delta (EU80).
• Sophos Firewall v20.0 to v21.0 Certified Architect Delta (AU80).
• Sophos Central Endpoint and Server v4.0-Engineer.
• Central Endpoint and Server v4.0-Architect.
• Sophos Central Endpoint v4.0 to v5.0 Architect Delta (AU15).
• Sophos Central Engineer Delta v4.0 to v5.0 (EU15).
🏅 Fortinet Certifications:
• NSE-7 (Network Security Architect) –NSE-ID:- 0Qjbf0qGSd
• NSE-4 (Network Security Professional) – NSE-ID:- GThFxY1viO
• NSE-5 (Network Security Analyst) on FortiAnalyzer- NSE-ID: - 8gIRCniwPN.
• NSE-1 (Network Security Associate) By Fortinet License Number: OYBF7cetpL.
• NSE-2 (Network Security Associate) By Fortinet License Number: FTsFjlmHck.
🏅 Other Certification:
• CNSS (Certified Network Security Specialist) By ICSI, UK License Number: 18427811
• Cisco Certified Network Associate (Routing & Switching) Cisco-ID: - CSCO13303817
Here, I would like to share my Working experiences, fields of expertise and much more-
✅ I have 9 years plus hands-on experiences on Network, System, Security administration, Deployment and Migrations on different Infrastructures along with direct involvements/cooperation on different known issues from Deployment stage to end-user’s support.
✅ Fields of Specialization:
1. Because of having 9 years plus exclusive experiences on different Fortinet, Sophos, SonicWall, PFSense, Palo-Alto and other Infrastructures Deployments and Administration I can work with the Complete Design, Deployments, Migrations and Integrations on these Different types of Infrastructures such as-
• Fortigate, Forti-APs, Forti-Switches, FortiVoice-Enterprise, Forti-Manager, Forti-EMS,FortiAnalyzer, FortiAuthenticator, FortiNAC, Fortinet Security Fabric Devices, FortiSandbox, FortiToken/Mobile/Service.
• Sophos Infrastructures Managements such Firewalls, Endpoints, Switches, APs etc.
• SonicWALL Infrastructures Managements such as Firewalls, NSM, Capture-Clients Endpoints etc.
• Palo-Alto, Barracuda, PfSense, Cisco-Firepower, Firepower-Thread Defence and FMC and Others Firewalls Managements.
• Migration To/From any of these above Infrastructures.
3. Long experiences on the Network and System Administration on these Infrastructures-
• Routing & Switching on Cisco, Mikrotik, Juniper, HP, Dell, Aruba etc.
• Wireless Implementation on Cisco, Aruba, Ruckus, 4Ipnet, Unifi/Ubiquiti, Forti-AP, Cambium, Altai, TP-Link-Omada, Teltonika etc.
• Mail-Server Administration on Office365, G-Suite by Google, Zimbra etc.
• Windows Server Managements.
• Virtualization & Datacentre Managements on VMware, ESXi, vSphere or VCenter, Hyper-V, Synology-NAS/SAN and Others.
• Voice Solution implementation on renowned Voice Solution Providers such as FortiVoice Enterprise, Grandstream, 3cX, Synway, Yeastar-PBX, FreePBX etc.
• Endpoint Solution Deployments on TrendMicro, Sophos Endpoint Protection, FortiClient by Forti-EMS (Endpoint Management Server), ESET etc.
• Complete Video Conferencing Solution on Dahua, Polycom etc.
• Surveillance, Attendance reader solution on Hikvision, Dahua, ZKTecho, Handuri etc.
4. I am a quick and dynamic learner. I can adjust myself with the Technological innovation within a very short amount of time.
5. I am a technical person with a Never Give-Up character.
I have multiples valuable feedback with great reviews on Upwork. You can also have a look at that.
If you have any further query on me just send "Hi" in Upwork.
VPN
Network Security
Firewall
Fortinet
Network Administration
FortiGate Firewall
Security Infrastructure
Palo Alto Firewalls
Wireless LAN Controller
Security Management
Sophos Sophos UTM
VoIP PBX
System Administration
PfSense
SonicWall
Flavio Y.
Brighton, United Kingdom
$65/hr
5.0
11 jobs
🔹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)
Network Engineering
Computer Network
Computing & Networking
Virtualization
VMware Administration
VMWare
DevOps
Juniper
Firewall
Cisco
VMware NSX
VMware ESX Server
VMware vSphere
Ubiquiti
Fortinet
Hosting Setup
Cloud Security
Cloud Migration
Cloud Architecture
IT Infrastructure
Rauf A.
Rawalpindi, Pakistan
$30/hr
4.9
108 jobs
A CCNA&CCNP certified network and system specialist with 15+ years of experience in designing, configuring, troubleshooting, and documenting diverse IT scenarios for ISPs, enterprises and startups. I have extensive hands-on experience in managing and optimizing network infrastructures. Proven expertise in firewalls (Fortinet, SonicWALL, Sophos, PfSense), network switches (Cisco Catalyst, Nexus, HP, Ruckus, H3C, Ubiquiti), and access points (Cisco, Ruckus, Aruba, Ubiquiti/Unifi). Proficient in VPN, routing and switching, and various protocols from layer 2 to layer 7. Committed to delivering robust and secure network solutions.
I have strong expertise in following:
Routing & Switching
Topology Design and Configuration
Layer2 & Layer3 Protocols
FortiGate Fortinet
SonicWALL
FirePro Firewalls
Cisco ASA
Cisco Switches, Access Points & Wireless Controller
Cisco WLC 9800, 5508, 2508
Cisco Packet Tracer
Ruckus Switches , Access Points and Wireless Controller
HP Aruba Switches, Access Points, Wireless Controller
H3C Switches,
Brocade Switches
Ubiquiti Unifi switches, Ubiquiti Unifi UDM Pro, Ubiquiti Unifi UDM-SE, Ubiquiti Unifi USG, Ubiquiti Unifi Access Points, Unifi Controller, Gateways, Cloud Key
WAN Optimization and WAN Failover
SDWAN
Windows Server Administration
DNS, DHCP, Group Policies
Microsoft Active Directory, Microsoft Azure AD
Microsoft Office365
Microsoft Hyper-V
Linux Administration
Zabbix
CCTV Specialist - practical experience to a variety of camera types, including PTZ, Bullet, Dome, and Wireless IP cameras, sourced from reputable brands like: Hikvision, Dahua, Bosch security systems & Unifi cameras, etc.
Certifications
CCNA
CCNP
Fortinet NSE 4 Certified in FortiOS
Fortinet FortiGate 7.4 Administrator
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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