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.
Cisco Meraki
Network Engineering
Aruba
Network Administration
Network Security
Fortinet
Computer Network
Cisco Certified Network Associate
Palo Alto Firewalls
Cisco
Cisco Router
Engineering & Architecture
SonicWall
UniFi
Ubiquiti
FortiGate Firewall
Network Monitoring
System Monitoring
Firewall
F5, Inc.
Ravi Kant S.
Mohali, India
$35/hr
4.9
6 jobs
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.
Network Security
Firewall
Fortinet
Cisco
VPN
Amazon Web Services
Microsoft Azure
Google Cloud Platform
Cisco ASA
Cisco Firepower Threat Defense
Routing
LAN Administration
WAN Optimization
Wireless Network Implementation
Cloud Security
Security Testing
Network Architecture
Network Administration
Information Security Audit
Troubleshooting
Neelam C.
Bengaluru, India
$15/hr
5.0
1 jobs
My goal is to contribute to an organization that recognizes and nurtures my strengths and abilities, allowing me to further develop my skills while delivering value in roles such as Network Engineer, Wireless Engineer, Network Security Engineer, Cisco Meraki Engineer, and SD-WAN Engineer.
I am a highly qualified and experienced IT professional with approximately 15 years of hands-on expertise in networking, wireless, security, and SD-WAN. My versatile skill set spans across various technologies, working within private-sector technical environments. I have extensive experience with routers, switches, 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, PaloAlto Prisma SD-WAN, Fortinet (FortiGate, FortiSwitch, FortiAP, FortiExtender, FortiManager, FortiAnalyzer, FortiCloud), F5 BIG IP, Silver Peak SD-WAN, NetCloud, Cradlepoint, VMware Cloud, OpsRamp, Lucid, MS Visio, and ServiceNow.
I am conscientious, motivated, trustworthy, loyal, and flexible, with a positive attitude and a strong willingness to learn. I quickly adapt to new technologies and am a confident communicator. I thrive in dynamic environments, whether working independently or as part of a team, always striving to maintain high standards of professionalism.
Key Expertise:
Routing:
Proficient in IP Addressing & Subnetting, RIP, OSPF, EIGRP, eBGP, iBGP, VRF, Static and Dynamic Routing, QoS, RIPv2, RIB, Cisco Routers, Cisco Meraki appliances, and Cisco WAAS.
Switching:
Expert in VLANs, Port Security, Trunking (802.1q), EtherChannel, VTP, STP, MST, RSTP, PVST, Inter-VLAN Routing, CEF, HSRP, VRRP, GLBP, POE, SPAN, MAC Table, StackWise, VSS, VPC, VSLP, Flex-Link, and upgrading IOS on Cisco, Nexus, and Cisco Meraki Switches.
Services:
Experienced with DHCP, DNS, MTU, ICMP, NTP, SNMP, SYSLOG, NETFLOW, VTY, SSH/TELNET, CDP, LLDP, WAN, ACL, NAT, PAT, IP SLA, Object Tracking, TCP/IP, TCP, UDP, ARP, GARP.
Security:
Specialist in Policy-based and Route-based VPNs, AAA, ACLs, Cisco ASA, FortiGate, Palo Alto Firewalls, Sophos Firewall, Panorama, Aruba CPPM, Aruba Gateway, Cisco Meraki Firewall (L2 and L3 Security), NAT, SD-WAN, IP Source Tracking, OpenVPN, pfSense Firewall, and Sophos Firewall.
Wireless:
In-depth knowledge of Cisco Wireless LAN Controllers (WLC), Cisco Prime, Cisco DNA, Cisco Meraki, Aruba Central, Aruba WLC, Aruba CPPM, WLAN, Cisco AP, Cisco Meraki AP, Aruba AP, and Mist AP.
Systems:
Proficient in Windows, Ubuntu, Kali Linux, Windows Server, ESXi, vSwitch, and vCenter client environments.
Windows Technologies:
Hands-on experience in Windows installation, troubleshooting, file systems, user and group management, device management, disk management, backup and restore, software administration, DNS, DHCP, FTP, WDS, IIS management, remote assistance, VPN, file servers, print servers, disk quota, and group policies.
Network Tools:
Familiar with ServiceNow, OpsRamp, Remedy, JIRA, ScienceLogic, and SolarWinds.
Professional Qualifications:
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 Professional
ICSI | CNSS Certified Network Security Specialist
Cisco Certified Network Associate (CCNA)
Multiple MikroTik Certifications (Routing, Wireless, Security, Traffic Control, Enterprise Wireless)
Certified in Sophos Firewall, pfSense Firewall, OpenVPN, Zabbix Solutions, Sonicwall
Cisco Router
Aruba
F5, Inc.
FortiGate Firewall
Network Engineering
Computing & Networking
Fortinet
Routing
Firewall
Cisco Meraki
Palo Alto Firewalls
Cisco
Cisco WLC
Cisco Certified Network Professional
Cisco Certified Network Associate
Network Monitoring
IT Support
Desktop & Laptop Support
Server Administration
Virtualization
Prabitra B.
Kolkata, India
$35/hr
4.9
369 jobs
CCSE, ITILv3 , Fortinet NSE4
CCNP R&S,CCNP Security.
In the last 15 years, I have been working on various network products and have gained comprehensive experience in Cisco, Fortinet, SonicWall, Checkpoint, HP, F5, Trellix (McAfee) ENS/EDR technologies. I have been involved in the design, configuration, and troubleshooting of Network products.
Firewalls:
Cisco ASA & Cisco Firepower
Fortigate UTM Firewalls
Checkpoint management servers & Security Gateways.
SonicWall TZ & NSA UTM Firewalls
Pfsense Firewall
ZTNA
FortiClient ZTNA & FortiClient EMS.
Load Balancers:
F5 BIG-IP Application Delivery Controllers
Radware Application Delivery Controllers
Array Application Delivery Controllers
Fortinet Application Delivery Controllers.
Routers:
Cisco, Arista, HP
Switches:
Cisco Catalyst
Cisco Nexus N5K & N9K
HP Switches
Wireless Controller & Access Points:
Cisco WLC,
Aruba WLC
Unify WLC
Meraki
Endpoint Security
Trellis (McAfee) ENS & EDR
VPN
Cisco Meraki
Network Security
Check Point
Load Balancing
Cisco Certified Network Professional
Cisco ASA
Web Proxy
Zero Trust Architecture
FortiGate Firewall
Cisco Firepower Threat Defense
SonicWall
Firewall
Cisco Router
Akankshu S.
New Delhi, India
$50/hr
5.0
52 jobs
I am a CCIE Security/NSE4/AWS, Azure and OCI Foundation certified network professional and I have worked for 6 plus years in Cisco TAC security team.
I have an over all 13 plus years of experience. I have worked on multivendor products like firewalls like Palo Alto, Cisco, Fortigate, Sonicwall etc, load balancers (F5 LTM, AFM), SDN solutions, Cisco Switches like catalyst, nexus etc. I have good exposure of configuring cisco switches (Nexus and Catalyst) and routers.
I have expert level knowledge of Cisco firewalls (ASA/FTD), fortigate, pfsense and palo alto. I have very strong troubleshooting skills and I have done several migrations of firewalls and other technologies.
I have migrated several multi vendor firewalls to Cisco Firewalls and vice versa. Also, have worked on a mass migration project like migrated more than 70 cisco ASAs to Cisco FTDs. I am managing more than 15 Palo Alto firewalls and 30 Fortigate firewalls.
I have sounds concepts and working knowledge of AWS advanced networking and Azure networking. I have configured several VPN connections between cloud and multivendor firewalls.
Computer Network
Fortinet
Cisco ASA
Virtualization
Microsoft Azure
Network Security
Cisco Certified Network Professional
Amazon Web Services
F5, Inc.
VPN
Palo Alto Firewalls
Cisco Certified Internetwork Expert
Python Script
Network Administration
VMware NSX
Parvej K.
Bangalore, India
$50/hr
5.0
18 jobs
Hi, I'm a dedicated Cisco Certified Network Engineer with CCNA and CCNP certifications, specializing in designing, implementing, optimizing, and troubleshooting robust enterprise and SMB networks.With hands-on experience in Cisco routing and switching technologies, I help businesses build secure, scalable, and high-performance network infrastructures that minimize downtime and support business growth. Whether you need a new network deployment, migration to SD-WAN, firewall configuration, VPN setup, or ongoing network support, I deliver reliable solutions tailored to your requirements.What I Offer:Network Design & Implementation: LAN/WAN/MAN design, VLANs, inter-VLAN routing, STP, EtherChannel, and advanced routing protocols (OSPF, EIGRP, BGP)
Cisco Infrastructure: Configuration and management of Cisco routers, switches (Catalyst, Nexus), wireless controllers (WLC), and Meraki devices
Security & Firewalls: Cisco ASA, Firepower, ACLs, VPN (Site-to-Site & Remote Access), and network security best practices
Troubleshooting & Optimization: Rapid diagnosis and resolution of complex network issues, performance tuning, and QoS implementation
Automation & Monitoring: Basic network automation with Python and Ansible, plus tools like SolarWinds, PRTG, and Cisco DNA Center
I am passionate about delivering zero-downtime migrations, enhancing network security, and reducing operational costs through efficient designs. Previous projects include full network overhauls that improved uptime to 99.99% and reduced latency significantly.I'm available for short-term gigs, long-term support contracts, or one-time consulting projects. Let's discuss how I can help strengthen your network infrastructure — feel free to message me with your requirements!Certifications:Cisco Certified Network Associate (CCNA)
Cisco Certified Network Professional (CCNP) – Enterprise
Key Skills: Cisco CCNA, CCNP, Routing & Switching, BGP, OSPF, EIGRP, VLAN, VPN, Firewall, Network Security, SD-WAN, Packet Tracer, GNS3, Wireshark
Router
Network Engineering
Network Administration
Network Design
VPN
Cisco WLC
Cisco Meraki
Cisco Certified Network Professional
Palo Alto Firewalls
Cisco Certified Internetwork Expert
Cisco Certified Network Associate
Multiprotocol BGP
Multiprotocol Label Switching
Firewall
Routing
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