Hire the Best Software Defined Networking (SDN) Specialists in Dhaka, BD

Hi, Need any help in your network infrastructure? I am glad to provide any kind of network solution that persists in my area of expertise. I help my clients to grow their businesses by improving their network efficiency as well as security and ensuring the best experiences for customers so that they can revisit me and grow their businesses together. I have plenty of experience in installation, configuration and maintenance of different Cisco products. I also have experience working with some global vendor like Dimension Data, Logicalis Hongkong, Global NTT, British Telecom (BT) etc with different projects. I can provide a vast range of services, from Virtual Assistance to developing big projects. I can serve you better than anyone else for all your IT needs. Some of my recent projects include the below device installation Meraki - MR, MS, and MX series installation Routers: Cisco: 1900, 2900, 2800, 2600, 7206, 3745,ISR 4300 L2/L3 Switch: Cisco(Catalyst): 2800,3650, 3750, 3850, 4500, 6800,9300 Security Device :Cisoco FPWR 1000,1100,2100,3100 series Cisco ASA 5500-X Series, NGFW, ESA, CheckPoint NGTP,NGTX, Fortinate FG-80D, Watch Guard Servers: Dell Power edge T310, Hp Rx 2660, HP ProLiant DL360 Series Wireless Tools: Cisco Access Point :1800,2600,2700,2800,3800,9100 Aruba AP : 535,565, IAP installation. Wireless Controller : 2504,5504,5520,9800 Aruba 7200 mobility controllers. Wan Optimization: Riverbed: SteelHead CX Networking tools: GNS: Configuration testing for Cisco IOS Video Conferencing Tools Polycom RealPresence Group Series,Polycom VSX Endpoints, Polycom HDX Endpoints, Cisco Teleprasence SX20,Cisco MX300 G2 Key Certifications / Skills : 1. Cisco CCNP (Security Core) 2. Cisco CCNA (Routing & Switching) 3. Cisco CCNA-Security 4. Black Belt Meraki Deployment 5. Cisco Networking: On-Premise and Cloud Solutions (OCSE) 6. CyberOpsAssoc 7. Cisco Certified Design Expert (CCDE)

I help businesses design, secure, troubleshoot, and optimize enterprise network and infrastructure environments. With 12+ years of hands-on experience in ISP, Data Center, Enterprise Networking, and Systems Administration, I have successfully deployed and managed Cisco, Palo Alto, MikroTik, VMware, Linux, and cloud-based infrastructure solutions for organizations of all sizes. My expertise includes Network Architecture, Network Security, Firewall Deployment, Routing & Switching, VMware Virtualization, Linux Administration, and Infrastructure Monitoring. I specialize in designing highly available, scalable, and secure environments that improve performance, reduce downtime, and support business growth. Core Expertise: ✔ Network Architecture & Design ✔ Network Security & Firewall Solutions (Palo Alto, Cisco ASA/FTD, pfSense, Sophos) ✔ Enterprise Routing & Switching (BGP, OSPF, EIGRP, MPLS) ✔ Data Center & ISP Network Infrastructure ✔ Cisco Nexus, Catalyst, ISR, ASR & Meraki ✔ MikroTik Routing, VPN, VLAN & Automation ✔ VMware vSphere, ESXi & Virtualization ✔ Linux System Administration (RHEL, CentOS, Ubuntu, Debian) ✔ AWS Networking & Cloud Infrastructure ✔ Monitoring & Observability (Zabbix, SolarWinds, Grafana, Prometheus, LibreNMS) ✔ Network Automation using Python ✔ Security Assessment (Wazuh, Nessus, Nmap, OpenVAS) ✔ SSL/TLS Certificate Deployment & Management (Commercial SSL, Let's Encrypt, Renewal & Troubleshooting) ✔ Linux Infrastructure & Services DNS (Primary DNS, Secondary DNS) Mail Servers (Zimbra, Postfix) Web Servers (Apache, Nginx) Hosting Platforms (WHM, cPanel, WordPress) FTP Services TACACS+ FreeRADIUS Samba File Services Whether you need a new network deployment, firewall migration, VPN implementation, BGP/MPLS troubleshooting, VMware infrastructure support, or security hardening, I can deliver reliable and business-focused solutions. Let's discuss how I can help strengthen and optimize your infrastructure.

I have over 12+ Years of working experience in the Networking Field. I am an enthusiastic NETWORK ENGINEER with the necessary drive and determination needed to resolve complex networking issues. Possessing effective organizational skills and excellent working knowledge of networking technologies and having a commitment to keep up to date with the latest developments. I’m an adaptable and efficient team player with excellent communication skills at all levels. Experienced in providing motivation, guidance, and an up-to-date networking consultancy service to clients. Now looking for a new and challenging network engineering task that will make the best use of my existing skills and experience and also further my career as a freelancer. Technical Skill Set Summary:::::::: • Cisco routers / switches / WLC • Cisco ASA / FTD / ISE / FMC • Cisco NX-OS • Network Automation using Python3 • Checkpoint Firewall & Endpoint Security • Sophos XG Firewall & Intercept X with advance EDR • Gateway Redundancy Protocols: HSRP / VRRP / GLBP • Routing: RIPng / OSPF / EIGRP / BGP / PBR / PfR / VRF • VLANs / STP / RSTP / Ether channel (LAG) • VPNs – GRE / IPSec / DMVPN • LAN-WAN / NAT / ACL • IPv4 / IPv6 • F5 Load Balancer • SIEM-Splunk, Qradar, Wazhu, Suricata, Elastic • Juniper Junos • Palo Alto Next-Generation Firewall • Fortinet Solutions- FortiGate Firewall, FortiMail email gateway, and FortiAnalyzer. • Juniper firewalls SRX Series • TCP/IP, DNS, DHCP • Wireshark • MikroTik • Virtualization: VMware vSphere 6.x • Windows Server 2012 R2 Qualifications: • Cisco Certified Specialist - Security Core (CCNP SCOR-350-701) • Cisco Certified Network Associate (CCNA-R&S) • Palo Alto Networks Certified Network Security Engineer (PCNSE) • APPLICATION DELIVERY FUNDAMENTALS (F5-101) • Fortinet Network Security Expert (NSE 1, NSE 2, NSE 3 & NSE 4) • JNCIA-SEC (JNCIA-SEC) • Junos (JNCIA-Junos)

Hello! I’m Sorna Kundu, Manager of Network & Systems Engineering, with over 13+ years of professional experience in the Internet Service Provider (ISP) and Telecom sectors. I specialize in designing, implementing, and operating secure, scalable, and high-availability network and server infrastructures for enterprise and service-provider environments. My expertise covers: Network Infrastructure – Advanced routing & switching using Cisco, Juniper, MikroTik, F5, Firewalls, and Cisco APIC (ACI) in complex production networks. Core Networking Technologies – Deep hands-on experience with TCP/IP, OSPF, BGP, MPLS, Traffic Engineering, L2VPN, L3VPN, routing policies, and QoS. VPN & Secure Connectivity – Site-to-Site VPN, Remote Access VPN, IPsec, and GRE over IPsec for secure and reliable inter-site communication. Server & Systems Engineering – Linux system administration (Ubuntu, CentOS, Debian), server deployment, DNS, DHCP, Web, Mail, and Database services, virtualization (VMware, Proxmox), storage, monitoring, backup, and high-availability solutions. Operations & Troubleshooting – End-to-end network and server troubleshooting, performance optimization, migration, and 24/7 production support. I have also worked on top OTT platforms in Bangladesh, including Toffee, T Sports, and Binge, where I supported high-traffic, low-latency streaming infrastructures serving millions of users. My role focused on ensuring service availability, scalability, and performance during peak viewership. Why Work With Me: ✅ End-to-end expertise in both network and server infrastructure ✅ Hands-on experience supporting OTT platforms at a million-user scale ✅ Expert troubleshooting and root-cause analysis ✅ Production-ready designs, not lab-only solutions ✅ Clear communication and professional delivery

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.

I am a highly skilled network troubleshooter with 10+ years of experience in the networking and security field. As a certified CCNA, CCNP (Enterprise & Security), CCSA, NSE4, MTCRE, and MTCNA professional, I specialize in custom project-based solutions that enhance network performance, security, and scalability. I have hands-on experience in Banking, Corporate, Garments networks, Security Projects, and Managed Service Providers (MSPs), delivering high-quality, reliable, and detail-oriented solutions tailored to business needs. Key Skills & Expertise: ✔ Network Troubleshooting & Optimization ✔ Routing Protocols – BGP, OSPF, EIGRP, RIP ✔ Switching Technologies – VLAN, STP, PVST, VTP, LACP, PAgP, Bridge ✔ Security & Firewalls – Cisco FTD, Checkpoint, FortiGate, Sophos ✔ VPN Solutions (Multi-Vendor) – IPsec, GRE, L2TP, PPTP, IPIP, EoIP, PPPoE ✔ Access Control (ACLs) – Cisco Routers & Switches ✔ Wireless & LTE – Channel Bonding, MIMO, WDS, Mesh Networks ✔ QoS & Traffic Optimization – FIFO, RED, SFQ, PCQ ✔ MikroTik Expertise – Load Balancing, Failover, Bandwidth Management, Web Proxy, DHCP, PCC/PBR Routing, Static NAT/PAT, SNMP, Scripting Professional Certifications: 🏆 Fortinet Network Security Expert (NSE4) 🏆 Checkpoint Certified Security Associate (CCSA) 🏆 Checkpoint Certified Security Expert (CCSE) 🏆 Palo Alto Networks Certified Network Security Engineer (PCNSE) 🏆 Cisco Certified Network Professional (CCNP-Security & CCNP-Enterprise) 🏆 Cisco Certified Specialist - Enterprise Core 🏆 Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation 🏆 Cisco Certified Network Associate (CCNA) (Cisco-ID: CSCO13422865) 🏆 MikroTik Certified (MTCNA, MTCRE) I am committed to delivering top-tier network security and performance solutions with a dedication to excellence. Let’s collaborate to take your network infrastructure to the next level!