Hi! I’m here to help you resolve your networking challenges with extensive experience across multiple platforms, including Mikrotik, Cisco, Juniper, and Ubiquiti devices. With over 12 years of professional experience, I’ve managed complex networking environments, optimized infrastructure, and implemented both small- and large-scale network solutions. My Core Skills Include: Routing and Switching: I have deep expertise in the design, configuration, and troubleshooting of a wide range of routing and switching protocols. Whether you’re looking to improve traffic routing or ensure network redundancy, I can implement: • BGP (Border Gateway Protocol) • OSPF (Open Shortest Path First) • RIP (Routing Information Protocol) • PBR (Policy-Based Routing) • Static Routing and VLAN • Failover Solutions Wireless Solutions: I have vast experience in designing and deploying wireless solutions that provide robust, scalable coverage for different environments: • WiFi Hotspot Implementation • WiFi Roaming • Standalone AP and CAPsMAN Monitoring & Network Management: Real-time monitoring, logging, and alerting can prevent downtime and keep your network performing at its best. I work with: • The Dude • SNMP, Netflow • PRTG and SolarWinds • SevOne PM • NetBox VoIP and Server Management: I specialize in deploying and maintaining communication systems (VoIP) and backend infrastructure: • Asterisk and FreeSwitch • Server Management • Dolibarr and OpenERP Virtualization and Cloud: Need to set up virtual machines or integrate cloud services? I have hands-on experience in: • VirtualBox • VMware-ESXI • ProxMox Network Security: I offer full security solutions from basic firewall setups to comprehensive multi-layered security frameworks: • VPNs (IPsec, PPTP, L2TP, OpenVPN, WireGuard) • ACLs (Access Control Lists) • Firewalls (Mikrotik, Cisco ASA, Juniper SRX) • Security Audits Devices and Platforms I Work With: • Mikrotik Routers: Devices such as CCRxxx, RBxxxx, AHxxx, cAP ac, and others. • Mikrotik Switches: Various CRS series, including CRS328-24P-4S+RM, for both core and edge deployments. • Cisco Routers: Including ISR 800, 4500, 1700, 2800, 2900, 3900 series, and ASR 1001-X. • Cisco Firewalls: ASA 5500, 5500-X, and Firepower 2100 for network security. • Cisco Switches: Extensive work with C2950, C2960-X, C3560, C3850, C4500, C6500, and more. • Juniper Routers and Switches: Including MX480, MX960, MX104 routers, and EX2200, EX4200, EX4300 switches. • Ubiquiti: EdgeRouter, UniFi series for efficient, scalable network deployment. • Dell and IBM Servers: Deployment, management, and configuration. Network Design and Optimization: I am proficient in assessing existing network setups and recommending improvements to streamline performance, increase security, and reduce latency. Whether you’re setting up a new data center or scaling up your current infrastructure, I can guide you through choosing the right devices and configurations for optimal results. Additionally, I provide consultation on network best practices, compliance with industry standards, and cost-effective hardware recommendations. NMS, NPM and DCIM Solutions: I can also deploy fully customized solutions for Network Monitoring System(NMS), Network Performance Monitoring (NPM) and Data Center Infrastructure Management (DCIM). I’ve worked extensively with The Dude, SevOne, NetBox and offer solutions that can be integrated into your existing infrastructure under the management platforms. Project Experience: With over 12 years in the field, I’ve successfully deployed over 1,000 Mikrotik devices and managed a variety of network projects involving multi-vendor environments. From small office networks to large-scale Network setups, I’ve managed both deployment and long-term support. I am skilled in troubleshooting, optimizing existing systems, and ensuring the reliability and scalability of networks. How I Can Help You: Whether you need help with routing and switching, setting up firewalls, designing a wireless network, deploying VoIP, or managing servers and virtual environments, I’ve got you covered. I can help you plan and deploy the best network solutions tailored to your unique needs. Plus, I’ll ensure ongoing support, so your network always performs at its best. I look forward to working with you and making sure your network infrastructure is both powerful and reliable! Let’s connect and discuss how I can help you achieve your goals.

Senior Network & Security Engineer with 12+ years of experience designing, implementing, securing, and supporting enterprise IT infrastructure. In addition to network engineering, I also have experience as a Full Stack Developer, building web applications and APIs using modern frameworks. I specialize in: • Cisco Routing & Switching • Fortinet (FortiGate) Firewalls • VPN Deployment & Troubleshooting • Network Security • LAN/WAN Design • Network Architecture & Planning • Microsoft Visio Network Diagrams (HLD/LLD) • Technical Documentation & SRS Writing • IT Infrastructure Assessments • Wireless Networks I have successfully delivered projects for organizations requiring secure, scalable, and highly available network environments. My expertise includes firewall configuration, network optimization, security hardening, infrastructure documentation, and technical report writing. Why clients hire me: ✓ 100% Job Success ✓ 70+ Successfully Completed Projects ✓ Fast Communication ✓ Enterprise Networking Experience ✓ Professional Documentation Standards

Hi, I am Progress C. Nkem, a specialist in IT infrastructure support with industry experience in designing, configuring, deploying, documenting, and supporting systems such as enterprise LAN/WAN (routing and switching), Linux servers, VoIP system, Zabbix monitoring system, virtual environments, and Windows Active Directory. - I will remotely help you setup and configure, from scratch, your network (LAN/WAN), VMware ESXi/Proxmox/KVM servers, 3Cx call center server, Linux server, Windows servers, VPNs, and firewalls - Also, I will remotely troubleshoot and resolve issues in any of such systems already existing in your environment - And I will provide you with custom/written scripts that can help automate processes in your environment

Highly experienced Network Engineer with over 7 years of experience in designing, implementing, and managing complex network infrastructures. My core area of expertise is in Cisco networking technologies, where I have gained extensive knowledge and hands-on experience in various Cisco products and solutions, including routers, switches, firewalls, and wireless networks. In my previous roles, I have worked on a variety of projects, including network design and implementation, network security, and network troubleshooting, and have been involved in all stages of the project lifecycle, from planning and design to implementation and maintenance. My technical skills include network design and architecture, routing and switching, VPNs, firewalls, wireless networks, network security, and network monitoring and management. I am also well-versed in industry-standard protocols and technologies such as TCP/IP, BGP, OSPF, SNMP, and VLANs. I have a strong commitment to delivering high-quality work and ensuring customer satisfaction. I am a great communicator and can work effectively with cross-functional teams, stakeholders, and customers. If you are looking for a highly skilled and experienced Network Engineer with expertise in Cisco, I would be happy to help you with your project.

👑 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

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.

Welcome! If you're looking for an experienced IT specialist who can configure Juniper, Cisco, Ubiquiti, Huawei, Mikrotik routers and set up NMS servers, and troubleshoot server issues, your search ends here! With 6 years of industry expertise, specializing in network infrastructure and NMS server configuration, I provide a comprehensive range of services. MY SERVICE PROVIDE : ------------------------------------ ➤ Configure Routers (Cisco, Ubiquiti, Juniper, Mikrotik, Huawei & Vyos) ➤ Troubleshoot Network issues & Global Routing solution) ➤ Various tunnel configurations (EoiP, IPIP, GRE, IPsec, VRF, PPTP, L2TP, IKEv2 VPN, PPPoE, and VPLS.) ➤ Public IPv4 & IPv6 planning, advertising and configure failover & load balancing ➤ NMS server setup (PRTG, MRTG, LIBRA etc) ➤ Server Maintenance ➤ Routers scripting, Auto Backup, Schedule Backup WHY CHOOSE ME : ------------------------------------ ➤ Fully genuine and professional ➤ Work Fast and Easy Communication ➤ Unlimited revisions ➤ Future support ➤ High Quality Work will be delivered on time and in the best quality as per your requirements. Please feel free to discuss the requirements and after being satisfied please award me with the work. Thanks & Regards, T H Shaon

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.

I’m a Network and Security Engineer with 4+ years of hands-on experience in designing, implementing, and troubleshooting complex enterprise networks. My journey includes deep technical expertise, sharp problem-solving skills, and a passion for keeping infrastructure secure, scalable, and efficient. What I Bring to the Table: • Deep experience with Cisco, Palo Alto, Fortinet, and Juniper devices • Network architecture and migration planning (Data Center, WAN, LAN, VPN, Cloud) • Firewall setup, policy optimization, and incident response • 24x7 Network Operations Center (NOC) monitoring and alerts • Network performance tuning and root cause analysis • Secure remote access solutions (IPSec, SSL VPNs, Zero Trust) • Familiarity with tools like SolarWinds, Wireshark, PRTG, Service Now, Jira and Zabbix • Data pipeline development and optimization using tools like Apache Airflow, Spark, and Kafka • Experience in building and maintaining ETL/ELT workflows for high-volume data ingestion, transformation, and storage • Hands-on with relational and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB, Cassandra) • Cloud-based data engineering on AWS, Azure, or GCP (S3, Redshift, BigQuery, Data Factory, etc.) • Data security and governance practices ensuring compliance with standards (GDPR, HIPAA, SOC 2) • Automation and scripting for infrastructure and data workflows using Python, Bash, and SQL Let’s connect and discuss how we can support your business!

10+ years handling large Enterprise Networks. Expert in Juniper, Fortigate, Cisco, Arista, Palo Alto, and more.