Hire the Best Freeswitch Specialists in Dhaka, BD

I'm a VoIP, Network & Security Engineer with over 10 years of hands-on experience building, managing, and securing enterprise and carrier-grade infrastructure. I've worked in the core network of one of Bangladesh's largest ISPs — designing solutions that handle real scale, real traffic, and real uptime requirements. I specialize in the full range of VoIP platforms — from SMB-focused systems like 3CX and FreePBX to carrier-grade switching and billing platforms including PortaOne (PortaSwitch, PortaBilling) and Telinta (TeliCore). If you're a VoIP provider, MVNO, or wholesale carrier needing a scalable multi-tenant platform, class-5 softswitch, or prepaid/postpaid billing setup, I can help you design, deploy, and maintain it. I also provide full US telecom regulatory compliance support — including STIR/SHAKEN implementation for call authentication and 10DLC (10-Digit Long Code) registration for A2P SMS campaigns. Whether you're a CPaaS provider, VoIP operator, or business needing compliant SMS messaging, I handle brand registration, campaign vetting, TCR submission, and carrier approval — keeping you out of filtering and in line with FCC and CTIA requirements. Beyond voice, my expertise covers the full network stack: BGP/OSPF routing, MPLS, firewall hardening with Fortigate and Sophos, IPsec/GRE VPNs, and cloud deployments on AWS and Azure. What you can expect: clear communication, documented deliverables, and no surprises. I scope projects carefully, flag issues early, and stay available through go-live and beyond. Telecom platform support: PortaOne (PortaSwitch · PortaBilling · PortaSIP) · Telinta (TeliCore softswitch · hosted VoIP · calling card billing) · FusionPBX · Asterisk · FreePBX · 3CX — from initial provisioning and trunk configuration to billing plan setup, DID routing, and ongoing admin. Regulatory & compliance: STIR/SHAKEN (SHAKEN attestation, STI-CA enrollment, signed calls) · 10DLC A2P SMS (TCR brand & campaign registration, carrier vetting, CSP setup) · FCC telecom compliance · SIP fraud prevention · call authentication best practices.

Look forward to hard and challenging job where scope lies to prove potentiality skill for something innovative, creative and implement modern concept and idea. To work in an institution / organization where discipline and high - tech environment will ensure first career development and congenial atmosphere will enhance managerial qualities i.e. Vision, positive, interpersonal relationship, communication skill, attitude to take challenges and commitment to achieve results.

IT, VoIP, Unified Communications and Collaboration engineer, and System Engineer with over ten years of experience. I am a hard-working, solution-focused individual whose priority is always customer satisfaction. I have extensive experience with 3CX/Mitel/Aastra/FreePBX systems, as well as Linux and network administration. I can meet specific customer requirements, from dial plans to Call flow design. I can debug a variety of call connection and quality issues and have the ability to do advanced troubleshooting on these types of problems. I worked on the Mitel Unified Communication and Collaboration project for Large Government organizations and Private Organizations of Bangladesh with 5000+ users and multiple Nodes, designing the communications infrastructure piece of that system. I have completed 10+ projects, most of those with 100+ users, 10+ SIP & E1 Trunks, Call flow design, Multiple IVRs, ATA/FXS, and FXO for analog telephones on another marketplace within the joining of 2 months. I am committed to meeting your needs efficiently, effectively, and on schedule.

22+ years in the telecommunications and Software industry from design, development, management, delivery, and lead. Vast experienced focused on solution customization for Cloud Telecommunication System. Specialist in Communication System like Core GSM, IP, SIP, WebRTC, SS7, Radius, Diameter, SMPP, XMPP, SNMP, Sockte, RabbitMQ Message Broker, Software Defined Radios (SDR), and IoT. Also capable to develop and deliver any communication-related solution.

Cloud Infrastructure and Platform Engineering professional with extensive experience in designing, deploying, and managing enterprise-scale cloud platforms and mission-critical infrastructure. Expertise in OpenStack, Kubernetes, virtualization, software-defined storage, Linux, automation, and cloud networking. Certification: 🥇 Certified Kubernetes Administrator (CKA) 🥇 Red Hat Certified Engineer (RHCE) 🥇 Red Hat Certified System Administrator (RHCSA) 🥇 Red Hat Certified Specialist in Virtualization (RHCVA) Skills and Specialties: ✅ Virtualization & Cloud: OpenStack, Proxmox, Docker, Kubernetes, KVM, AWS ✅ Storage: Ceph, TrueNAS, ZFS, GlusterFS, iSCSI, NFS ✅ Cloud Networking: OVN, OVS, VXLAN, VPN, Load Balancers, Firewalls, GSLB ✅ Automation & DevOps: Ansible, Bash, Terraform, Git, CI/CD ✅ Monitoring & Observability: Zabbix, Prometheus, Grafana, Alertmanager, Node Exporter, ELK ✅ Infrastructure Services: DNS, NTP, Mail Systems, Web Servers, cPanel/WHM ✅ VoIP: Asterisk, FreePBX, Vicidial, Voice Gateway, SS7 Media Gateway

I am an AI Systems Engineer with 6+ years of experience building real-time communication platforms, VoIP systems, and AI-powered voice solutions. I specialize in combining telephony infrastructure with modern AI technologies to create intelligent, scalable systems — including conversational IVR, voice bots, and automated call workflows. My expertise includes: • Asterisk, SIP/PJSIP, WebRTC, IVR systems • AI voice pipelines (STT → LLM → TTS) • Conversational AI & smart call routing • Backend systems, APIs, and CRM integrations • Cloud deployments (AWS, DigitalOcean, Linux) I have built and deployed production-grade systems used in enterprise and high-volume environments, focusing on performance, reliability, and scalability. I also actively use AI-assisted development tools (ChatGPT, Claude, etc.) to accelerate development, debug complex systems, and improve code quality.