Hello my name is Mahbub, I am a Linux Expert from Bangladesh
About Me! ✌️
I am a motivated Linux professional with a strong background in RHCSA, RHCE, RHCS-V, and RHCS-HA. I am eager to apply my skills in Cloud, Networking, Cybersecurity, Virtualization, Database, and DevOps. Focused on staying current with industry trends, I aim to drive innovation and enhance IT solutions through strategic problem-solving and technical expertise.
My Resume
All over my Personal details find here
Focused on continuous learning, innovation, and contributing to impactful IT solutions. Interested in collaborating with professionals who share a passion for technical growth and problem-solving.
Skills
90%
Linux Server
Skilled in RHEL, Oracle Linux, AlmaLinux, Rocky Linux, and Ubuntu with expertise in Linux installation, boot procedures, and package management (RPM, YUM, DNF, APT). Proficient in user/group management, permissions, ACLs, crontab, and job scheduling. Experienced in network setup, bonded interfaces, DHCP, DNS, NTP, and Chrony.
Specialized in storage (RAID, LVM, VDO), centralized IAM (OpenLDAP, FreeIPA), web servers (Apache, Nginx, Tomcat), and database servers (MariaDB, MySQL, PostgreSQL). Skilled in remote CLI (SSH, Telnet), file compression tools, and security configurations (SELinux, firewalls). Proficient with NMS tools (ELK, Grafana, Zabbix) and proxy servers (HAProxy, Squid).
85%
DevOps Skill
Experienced in virtualization technologies including KVM/QEMU, Red Hat Virtualization, oVirt, VMware ESXi, and Proxmox. Proficient in AWS cloud services (EC2, VPC, RDS, S3, EFS, EBS, IAM) and container technologies like Docker and Kubernetes. Skilled in CI/CD with Jenkins, version control using Git/GitHub, and automation with Ansible, Terraform, and Vagrant. Strong in shell scripting and message brokering with RabbitMQ.
95%
Windows Server
Experienced in Windows Server 2016/2019 with expertise in ADDS, PDC, ADC installation and configuration. Skilled in managing users, groups, password policies, and configuring Windows File Sharing and quota systems. Proficient in DNS and DHCP server setup, and managing Active Directory Organizational Units (OU) and Group Policy Objects (GPO). Knowledgeable in partitioning schemes (MBR, GPT, Storage Pool), RAID technologies (RAID-0, RAID-1, RAID-5), and storage solutions like iSCSI. Experienced in configuring Web Servers using Internet Information Services (IIS).
87%
Networking Skill
Basic knowledge of networking devices including Repeater, Hub, Bridge, Switch, and Router. Familiar with OSI and TCP/IP models, as well as LAN, MAN, and WAN networks. Experienced in cabling, subnetting, IP addressing, VLSM, STATIC routing, and DHCP configuration.
93%
Cyber Security Skill
Familiar with Kali Linux and Parrot OS. Basic knowledge of vulnerability assessment, cyber threats, and cybersecurity practices. Experienced with Google Search Operators, GHDB, and footprinting techniques. Proficient in using networking scanning tools like Nmap and Nessus.
80%
Big Data Skill
Knowledgeable in Big Data concepts, including the 3Vs (Volume, Velocity, Variety), and experienced with Apache Hadoop and its ecosystem for efficient data processing and management.
Experience
July 2023 - Ongoing
Senior System Engineer || Operational Support Systems (OSS)
Summit Communications Limited
Responsible for maintaining, configuring, and ensuring the reliable operation of computer systems, network servers, and virtualization. Monitor system performance, manage upgrades, and troubleshoot hardware/software issues. Handle backups, data protection, disaster recovery, and storage planning. Provide technical support, document processes, and perform server administration tasks (user/groups, security, policies). Conduct routine audits, assist with troubleshooting, and collaborate with vendors for timely issue resolution. Lead research and development projects, and ensure system upgrades and timely project completion.
April 2022 - July 2022
Operations Expert (ICMS) || Information Technology Platform (ITP)
RedDot Digital Limited
Perform 24×7 duties on a roster basis, gaining insight into the ICMS infrastructure and campaign management systems. Monitor, notify, and troubleshoot alerts related to server storage and system performance. Analyze logs to resolve customer and retailer issues. Provide ongoing maintenance and support for the day-to-day operations of the ICMS application.
September 2021 - December 2021
Associate System Administrator || System Operations (SysOps)
Therap (BD) Ltd
Perform 24×7 on-call duties on a rotation basis, gaining insights into the company’s system, server, and network infrastructure. Contribute to optimizing system stability, availability, and performance. Troubleshoot issues notified by alerting tools, and utilize Linux OS tools for system management. Identify and resolve system issues, taking corrective actions and escalating when needed.
| February, 2020 - September, 2021
System Engineer || Core Network Operation (VOICE & SMS)
NovoTel Limited
Manage carrier integration and provisioning for the internal SMS system using Genband (NexTone) SBC-S3 & Q21. Create and update OBD and IVR campaigns, filters, list strategies, and reports. Handle internal Voice and SMS system alerts, including alarms from monitoring tools. Monitor SMS traffic and servers using Elasticsearch, Kibana, and Grafana. Design and implement Kibana visualizations to meet business needs. Lead R&D projects to explore new business opportunities.
January, 2019 - January, 2020
Technical Support Executive
Linux Pathshala Limited
Install, configure, diagnose, and troubleshoot hardware, OS, applications, and network issues. Provide IT support in both standalone and network environments. Handle network troubleshooting, maintenance, and cabling. Ensure proper installation, maintenance, and troubleshooting of LAN equipment like routers, switches, and servers.
Tranning Experience
March, 2023 - Ongoing (Part-Time)
Linux & Windows Server Training Instructor
Skills for Employment Investment Program (BASIS SEIP)
Ensure active student participation in classes, develop course curricula when needed, and maintain professional relationships with colleagues and candidates.
January, 2023 - Ongoing (Part-Time)
Linux & Windows Server Training Instructor
PencilBox Training Institute
Ensure active student participation in classes and maintain professional relationships with colleagues and candidates.
October, 2022 - Ongoing (Part-Time)
Senior Linux Server Training Instructor
Linux Pathshala Limited
Ensure active student participation in classes and maintain professional relationships with colleagues and candidates.
January, 2019 - January, 2020
Linux Server Training Instructor
Linux Pathshala Limited
Ensure active student participation in classes and maintain professional relationships with colleagues and candidates.
Soft Skills
90%
Programming Language
Python 3
85%
Web Language
HTML 5, CSS 3
95%
OS
Windows 7/8/10, Linux Distribution: Fedora, CentOS Linux 7/8, Debian,
Linux Mint 19/20, Xubuntu, Lubuntu.
87%
Application
MS Office, WPS Office
93%
Web CMS & Others Skills
SEO, WordPress, Audio & Video Editing.
Education
2010
Uttar Kalshi Adarsha Bidyapith, Dhaka
Secondary School Certificate (S.S.C)
Science
2012
Mirpur College, Dhaka
Higher Secondary Certificate (H.S.C)
Science
2018
Southeast University, Dhaka
Bachelor of Science (B.Sc.)
Computer Science Engineering (CSE)
Skills
90%
Linux Server
Skilled in RHEL, Oracle Linux, AlmaLinux, Rocky Linux, and Ubuntu with expertise in Linux installation, boot procedures, and package management (RPM, YUM, DNF, APT). Proficient in user/group management, permissions, ACLs, crontab, and job scheduling. Experienced in network setup, bonded interfaces, DHCP, DNS, NTP, and Chrony.
Specialized in storage (RAID, LVM, VDO), centralized IAM (OpenLDAP, FreeIPA), web servers (Apache, Nginx, Tomcat), and database servers (MariaDB, MySQL, PostgreSQL). Skilled in remote CLI (SSH, Telnet), file compression tools, and security configurations (SELinux, firewalls). Proficient with NMS tools (ELK, Grafana, Zabbix) and proxy servers (HAProxy, Squid).
85%
DevOps Skill
Experienced in virtualization technologies including KVM/QEMU, Red Hat Virtualization, oVirt, VMware ESXi, and Proxmox. Proficient in AWS cloud services (EC2, VPC, RDS, S3, EFS, EBS, IAM) and container technologies like Docker and Kubernetes. Skilled in CI/CD with Jenkins, version control using Git/GitHub, and automation with Ansible, Terraform, and Vagrant. Strong in shell scripting and message brokering with RabbitMQ.
95%
Windows Server
Experienced in Windows Server 2016/2019 with expertise in ADDS, PDC, ADC installation and configuration. Skilled in managing users, groups, password policies, and configuring Windows File Sharing and quota systems. Proficient in DNS and DHCP server setup, and managing Active Directory Organizational Units (OU) and Group Policy Objects (GPO). Knowledgeable in partitioning schemes (MBR, GPT, Storage Pool), RAID technologies (RAID-0, RAID-1, RAID-5), and storage solutions like iSCSI. Experienced in configuring Web Servers using Internet Information Services (IIS).
87%
Networking Skill
Basic knowledge of networking devices including Repeater, Hub, Bridge, Switch, and Router. Familiar with OSI and TCP/IP models, as well as LAN, MAN, and WAN networks. Experienced in cabling, subnetting, IP addressing, VLSM, STATIC routing, and DHCP configuration.
93%
Cyber Security Skill
Familiar with Kali Linux and Parrot OS. Basic knowledge of vulnerability assessment, cyber threats, and cybersecurity practices. Experienced with Google Search Operators, GHDB, and footprinting techniques. Proficient in using networking scanning tools like Nmap and Nessus.
80%
Big Data Skill
Knowledgeable in Big Data concepts, including the 3Vs (Volume, Velocity, Variety), and experienced with Apache Hadoop and its ecosystem for efficient data processing and management.
Experience
July 2023 - Ongoing
Senior System Engineer || Operational Support Systems (OSS)
Summit Communications Limited
Responsible for maintaining, configuring, and ensuring the reliable operation of computer systems, network servers, and virtualization. Monitor system performance, manage upgrades, and troubleshoot hardware/software issues. Handle backups, data protection, disaster recovery, and storage planning. Provide technical support, document processes, and perform server administration tasks (user/groups, security, policies). Conduct routine audits, assist with troubleshooting, and collaborate with vendors for timely issue resolution. Lead research and development projects, and ensure system upgrades and timely project completion.
April 2022 - July 2022
Operations Expert (ICMS) || Information Technology Platform (ITP)
RedDot Digital Limited
Perform 24×7 duties on a roster basis, gaining insight into the ICMS infrastructure and campaign management systems. Monitor, notify, and troubleshoot alerts related to server storage and system performance. Analyze logs to resolve customer and retailer issues. Provide ongoing maintenance and support for the day-to-day operations of the ICMS application.
September 2021 - December 2021
Associate System Administrator || System Operations (SysOps)
Therap (BD) Ltd
Perform 24×7 on-call duties on a rotation basis, gaining insights into the company’s system, server, and network infrastructure. Contribute to optimizing system stability, availability, and performance. Troubleshoot issues notified by alerting tools, and utilize Linux OS tools for system management. Identify and resolve system issues, taking corrective actions and escalating when needed.
| February, 2020 - September, 2021
System Engineer || Core Network Operation (VOICE & SMS)
NovoTel Limited
Manage carrier integration and provisioning for the internal SMS system using Genband (NexTone) SBC-S3 & Q21. Create and update OBD and IVR campaigns, filters, list strategies, and reports. Handle internal Voice and SMS system alerts, including alarms from monitoring tools. Monitor SMS traffic and servers using Elasticsearch, Kibana, and Grafana. Design and implement Kibana visualizations to meet business needs. Lead R&D projects to explore new business opportunities.
January, 2019 - January, 2020
Technical Support Executive
Linux Pathshala Limited
Install, configure, diagnose, and troubleshoot hardware, OS, applications, and network issues. Provide IT support in both standalone and network environments. Handle network troubleshooting, maintenance, and cabling. Ensure proper installation, maintenance, and troubleshooting of LAN equipment like routers, switches, and servers.
Tranning Experience
March, 2023 - Ongoing (Part-Time)
Linux & Windows Server Training Instructor
Skills for Employment Investment Program (BASIS SEIP)
Ensure active student participation in classes, develop course curricula when needed, and maintain professional relationships with colleagues and candidates.
January, 2023 - Ongoing (Part-Time)
Linux & Windows Server Training Instructor
PencilBox Training Institute
Ensure active student participation in classes and maintain professional relationships with colleagues and candidates.
October, 2022 - Ongoing (Part-Time)
Senior Linux Server Training Instructor
Linux Pathshala Limited
Ensure active student participation in classes and maintain professional relationships with colleagues and candidates.
January, 2019 - January, 2020
Linux Server Training Instructor
Linux Pathshala Limited
Ensure active student participation in classes and maintain professional relationships with colleagues and candidates.
Soft Skills
90%
Programming Language
Python 3
85%
Web Language
HTML 5, CSS 3
95%
OS
Windows 7/8/10, Linux Distribution: Fedora, CentOS Linux 7/8, Debian,
Linux Mint 19/20, Xubuntu, Lubuntu.
87%
Application
MS Office, WPS Office
93%
Web CMS & Others Skills
SEO, WordPress, Audio & Video Editing.
Education
2010
Uttar Kalshi Adarsha Bidyapith, Dhaka
Secondary School Certificate (S.S.C)
Science
2012
Mirpur College, Dhaka
Higher Secondary Certificate (H.S.C)
Science
2018
Southeast University, Dhaka
Bachelor of Science (B.Sc.)
Computer Science Engineering (CSE)