I am a Systems Engineer specializing in Linux server administration, VoIP systems, and cloud infrastructure. I have hands-on experience managing production systems including IPPBX platforms, email servers, and virtualization environments. I am currently expanding my expertise in DevOps, automation, and cloud technologies.
Hello! I am an infrastructure-focused engineer with practical experience managing Linux-based systems and communication platforms. I enjoy building reliable systems and learning modern DevOps tools to improve automation, scalability, and service delivery.
My goal is to become a DevOps engineer and build scalable cloud infrastructure platforms for hosting services such as email, VoIP, and cloud applications.
Built a secure call-center solution on Issabel with extensive customizations in Asterisk dialplan. Implemented alias-based calling with full caller-ID masking, using MySQL (ODBC) for dynamic number mapping. Engineered advanced call handling with custom context routing, CDR manipulation, and MixMonitor control for recording and auditing.
Implemented an automated firewall monitoring solution using iptables across multiple PBX servers, with real-time alerts to detect suspicious traffic and unauthorized access attempts.
Deployed and configured Proxmox Backup Server for centralized, efficient, and secure backups of virtual machines, improving disaster recovery and data reliability.
Developed a lightweight automation for Proxmox VE that automatically extends VM disk space when thresholds are reached, reducing manual intervention and downtime risk.
Built a containerized monitoring system using Prometheus, Grafana, and Docker with node exporters for PBX and mail servers, enabling real-time metrics, dashboards, and alerting.
My goal is to build scalable cloud infrastructure platforms for hosting services such as email, VoIP, and cloud applications. Currently looking for new opportunities, my inbox is always open!
rakibulhasanrizvi@yahoo.com
+880 1679-343895