I am an expert Cloud/System/Virtualization/Infrastructure Administrator, boasting advanced knowledge, skills, and experience that I am eager to leverage. My passion for automation is matched by my capability to manage both basic and advanced System/Site/Infrastructure reliability tasks. I am enthusiastic about contributing my comprehensive skill set to your dynamic team, ensuring that we achieve exceptional results together.
Experience
Pipeline Co. Ltd.
Nov 2020 – Present
Dhaka, BGD
Solution Engineering Manager
▪ Leveraged a wide array of AWS services, such as EC2, VPC, EFS, Lambda, Route53, RDS, CloudWatch, CloudTrail, ELB, ACM, and AWS Client VPN.
▪ Enhanced system reliability by architecting and implementing AWS cloud security measures, including IAM roles and policies, MFA, ClouTrail, Security Groups and EntraID SSO for AWS.
▪ Effectively optimized AWS billing using Cost Explorer, Budgets, Reserved Instance savings plans to reduce and save the company's cloud costs.
▪ Managed several virtual platforms like, Vultr, Neutrix, SSDNodes, Hyper-V, Prosmox VMWare ESXi to ensure a robust and scalable infrastructure.
▪ Worked with Development Team on Python, NodeJS, Gunicorn, Redis, Celery, Grok and PostgreSQL based application and developed Threat Detection & Response solution with DNS RPZ and leveraging Threat Intel Platform; and SaaS project using Pegasus & Kafka on EKS cluster.
▪ Worked with DevOps and Development Team on CI/CD pipelines process and Infrastructure and product deployment automation using Bash, Python and Ansible.
▪ Ensured PoC and Production deployment process and provided technical support & solutions with RFO to global customers (tech & non-tech) and over Email, Freshdesk and Zoho desk and maintained effective communication with stakeholders.
▪ Application performance tuning & system health monitoring using Grafana and Zabbix Dashboard, automated critical events alert process through collaboration Tools: Microsoft Teams and Slack.
▪ Overseeing company’s key digital assets and handling vital services including Microsoft Office365, Confluence, Git, Zoho Cloud etc.
ADN Telecom Ltd.
Oct 2013 – Sep 2019
Dhaka, BGD
Assistant Manager, Core Technology
▪ Implemented, configured and managed servers (RHEL, CentOS, Ubuntu, Windows, FreeBSD) in physical, virtual and cloud environments.
▪ Implemented and managed virtualization platforms such as VMWare, Prosmosx and Hyper-V for resource allocation, provisioning and optimization, and I also worked on private cloud deployment project in on-premises datacenter including manageability.
▪ Worked with network almost all popular network protocols such as DNS, DHCP, TCP/IP, IPv4-IPv6 (dual stack), VPNs, Firewalls, ACL, Iptables, VLAN, Interface bridging and sub-interfacing etc.
▪ Implemented DNS servers (BIND9, Unbound) and managed large amount of authoritative and recursive traffic on master-slave models ensuring security and protecting DNS poisoning.
▪ Worked with several email services like Postfix, Sendmail, EXIM including managed email solutions such as Zimbra, Glowhost and CommunigatePro.
▪ Worked with cPanel and WHMCS based managed hosting solution and managed domain registration including DNS hosting on OnlineNIC, NetSol, GoDaddy etc.
▪ Maintained robust database systems with MySQL, PostgreSQL, MSSQL for ERP, Ticketing System, and Apache2, NGINX, HA Proxy (Squid, PeerApps) etc.
▪ Managed bandwidth and network traffic using ET & Procera for BWMGR & DPI, enhancing network efficiency, Integrated authentication.
▪ Implemented company’s core network monitor systems Solarwinds, Cacti, Smokeping; also worked with Zabbix, Nagios, SNMPc and CA Spectrum.
▪ Ensured data integrity with scheduled backups using crond, TFTP, XAMPP, and XShell for Cisco, Mikrotik, and Juniper network devices
Bangladesh Online Ltd. (BEXIMCO Group)
Oct 2010 – Sep 2013
Dhaka, BGD
Executive, Tech Support
▪ Deployed large number of mail servers using Postfix and Zimbra and integrated MailScanner and ClamAV for multidomain mail server environments.
▪ Configured and maintained wireless broadband, VPNs, and Cisco routers to ensure robust network connectivity and provide on-call and on-site customer technical support and solutions.
▪ Established radio connectivity using Tango, Canopy, and Nano devices, as well as managing Ethernet+E1, IPLC, and data connectivity.
▪ Worked in Pfsense UTM installation, configuration, and troubleshooting, ensuring comprehensive network security and performance.