Hello everyone! 👋

I Am MAHBUB

Linux ServerWindows ServerDevOps SkillNetworking Cyber ScurityBig DataAREA OF EXPERTISE

Motivated Linux professional with expertise in RHCSA, RHCE, RHCS-V, and RHCS-HA. Skilled in Linux systems, Cloud, Networking, Cybersecurity, Virtualization, Databases, and DevOps. Committed to driving innovation, enhancing efficiency, and delivering impactful IT solutions through technical expertise and strategic problem-solving.

My Skills

My Skilled Area

Linux expert in installation, networking, storage, security, and server management across RHEL, Ubuntu, and Oracle Linux. Skilled in IAM, NMS tools, and proxies.

Linux Server

Skilled in virtualization (KVM, VMware), cloud (AWS), containers (Docker, Kubernetes), CI/CD (Jenkins), IaC (Ansible, Terraform), Git, RabbitMQ, and shell scripting.

DevOps Skill

Expert in Windows Server, ADDS, DNS, DHCP, GPO, RAID, and IIS setup with strong skills in user management, file sharing, and storage.

Windows Server

Basic knowledge of networking devices (Repeater, Hub, Switch, Router) and concepts like OSI/TCP-IP models, LAN/MAN/WAN, subnetting, IP addressing, VLSM, STATIC, and DHCP.

Networking Skill

Familiar with Kali Linux and Parrot OS. Basic knowledge of vulnerability assessment, cyber threats, Google search operators, GHDB, footprinting, and networking scanning tools (Nmap, Nessus).

Cyber Security Skill

Proficient in Big Data concepts, including the 3Vs (Volume, Velocity, Variety). Experienced with Apache Hadoop and its ecosystem. Skilled in leveraging these technologies for efficient data management.

Big Data Skill

Let's Get In Touch With 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
  • Professional Experience
  • Tranning Experience
  • Soft Skills
  • Education

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).

90%

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.

85%

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).

95%

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.

87%

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.

93%

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.

80%

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

90%

85%

Web Language

HTML 5, CSS 3

85%

95%

OS

Windows 7/8/10, Linux Distribution: Fedora, CentOS Linux 7/8, Debian,
Linux Mint 19/20, Xubuntu, Lubuntu.

95%

87%

Application

MS Office, WPS Office

87%

93%

Web CMS & Others Skills

SEO, WordPress, Audio & Video Editing.

93%

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
  • Professional Experience
  • Training Experience
  • Soft Skills
  • Education

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).

90%

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.

85%

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).

95%

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.

87%

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.

93%

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.

80%

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

90%

85%

Web Language

HTML 5, CSS 3

85%

95%

OS

Windows 7/8/10, Linux Distribution: Fedora, CentOS Linux 7/8, Debian,
Linux Mint 19/20, Xubuntu, Lubuntu.

95%

87%

Application

MS Office, WPS Office

87%

93%

Web CMS & Others Skills

SEO, WordPress, Audio & Video Editing.

93%

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)

Testimonials

Amazing Reviews From My Clients

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    MD Nasir Uddin Pavel
    MD Nasir Uddin Pavel

    Chief Executive Officer (CEO) Linux Pathshala Limited

    I am proud to have Mahbub Haider as a Senior Linux Instructor at Linux Pathshala Limited. Their deep expertise in Linux and open-source technologies, coupled with an unwavering commitment to student success, makes them an invaluable asset to our team.

      Khondoker Ali Asgor Pavel
      Khondoker Ali Asgor Pavel

      CEO at bitBirds Solutions & PencilBox Training Institute

      I had the privilege of working with Mahbub Haider as part of an SEIP project, where they excelled as a Linux instructor. Their exceptional technical expertise, combined with a passion for teaching, made a significant impact on the success of the program.

        MD Borhan Uddin Ahmed
        MD Borhan Uddin Ahmed

        Deputy Manager (Operational Support Systems) Summit Communications Limited

        It has been an absolute pleasure working with Mahbub Haider on Operational Support Systems (OSS) initiatives. Their expertise in Linux and open-source technologies has been instrumental in delivering efficient and reliable solutions.

          Farhad Hossain
          Farhad Hossain

          Senior Software Engineer at Summit Communications Limited

          I had the pleasure of working with Mahbub Haider as a Linux server expert, and their expertise and professionalism stood out from day one. Their deep understanding of Linux systems and their ability to design, deploy, and optimize server infrastructures were invaluable in ensuring the success of our projects at Summit Communications Limited.