A K M ASHRAFUR RAHMAN
Network Administrator
Uttara, Dhaka,14
Summary
Accomplished Network Administrator with a strong background in designing secure, high-performance IT infrastructures and enhancing connectivity. Currently serving as IT Infrastructure Manager at Glenrich International School, overseeing Cisco routers, servers, and branch office networks. Previously held pivotal IT positions at Auko-Tex Group, Epyllion Group, and Connect BD Limited, driving operational efficiency and delivering effective network solutions. Dedicated to utilizing technical expertise to streamline technology operations and support organizational growth.
Overview
16
16
years of professional experience
4029
4029
years of post-secondary education
Work History
IT Infrastructure Manager
Glenrich International School, Uttara, Dhaka.
03.2024 - Current
- Network Design & Configuration: Design, configure, and implement LAN/WAN, routers, switches, firewalls, VPNs, and network devices to support organizational growth.
- Server & Infrastructure Management: Set up and maintain physical and virtual servers (file, database, web), ensuring performance, backups, updates, and security.
- IP Telephony Management: Implement and manage IP phone systems (VoIP), including hardware/software configuration, troubleshooting, and upgrades.
- Network Monitoring & Troubleshooting: Continuously monitor network performance, troubleshoot issues, and optimize connectivity across departments.
- Security Management: Implement firewalls, VPNs, and security protocols to protect network infrastructure, enforce security policies, and ensure compliance.
- Maintenance & Upgrades: Perform routine network and server maintenance, execute system optimizations, and plan necessary upgrades.
- Backup & Disaster Recovery: Manage backup procedures and ensure disaster recovery protocols are in place and regularly tested.
- Support & Training: Provide technical support for network and server issues, and train staff on network resources, IP phones, and email systems.
- Documentation & Reporting: Maintain network documentation and generate regular performance and security reports for management.
- Collaboration & Vendor Management: Work with vendors and IT stakeholders to enhance network systems and evaluate hardware/software solutions.
Assistant Manager - Information Technology
Auko-Tex Group
05.2019 - 02.2024
- Server & Network Management: Configure and manage Windows servers, including domain controllers, DNS, DHCP, Exchange, Proxy, Web, FTP, and database servers. Maintain wired/wireless LAN, routers, APs, and network devices.
- System & Security Management: Ensure IT network security, conduct security audits, manage backups, and monitor antivirus and CCTV systems to prevent threats.
- Website & Online Support: Develop and maintain the company website, ensuring smooth user experience and internet connectivity. Provide support for software licenses and online applications.
- IT Equipment & Vendor Management: Oversee IT inventory, procure equipment, maintain office tech (printers, UPS, CCTV, etc.), and collaborate with vendors for installations and management.
- User & Technical Support: Provide on-site/remote support for operating systems, anti-virus, MS Office, and other software. Train users on IT systems, ERP, and network tools.
- Network Configuration & Troubleshooting: Configure routers (including Mikrotik), manage IP addressing, and resolve network issues. Perform regular network maintenance and upgrades.
- IT Policy & Procurement Management: Develop and enforce IT policies, assess equipment needs, and manage procurement as per company policies.
- Other Duties: Assist with router configuration, system installations, and ad-hoc tasks as assigned by management.
Senior Executive - Information Technology
Epyllion Group
05.2014 - 05.2019
- Network Setup & Management: Responsible for designing, configuring, and managing LAN/WAN networks, ensuring seamless connectivity and data security across the organization.
- IP Addressing & Device Configuration: Configure IP addressing, routers, switches, wireless routers, firewalls, and network printers to set up and maintain office network infrastructure.
- Troubleshooting & Support: Provide quick resolution for hardware and software issues, ensuring minimal downtime.
- Data Backup & Security: Manage Mikrotik routers and perform regular data backups from various servers to ensure data integrity and security.
- Mail Server & Email Configuration: Set up and troubleshoot mail servers on Linux platforms, configure email domains, and ensure proper functioning of email clients like MS Outlook.
- Windows Services & System Configuration: Configure and maintain various Windows services (CyberOam, DNS, DHCP, Antivirus) and file server setups.
- Server & VPN Management: Administer Windows Server environments (2008/2012/2012 R2), manage VPNs, and monitor network and system performance using monitoring tools.
- Special Software & Systems: Operate MAC OS for specialized tasks and manage ERP systems, including HRMS, Barcode Scanners, IP Phones, and IP Cameras.
- Intranet Portal & Web Management: Oversee intranet web portals, ensuring smooth operation of internal ERP systems and related services.
Network Engineer - NOC
Connect BD Ltd.
Dhaka, Bangladesh
12.2008 - 04.2014
- Network & System Administration: Manage day-to-day operations of Cisco, H3C, 3Com, Mikrotik, Linux, and Windows systems, including authentication, mail, and scripting.
- Installation & Configuration: Install, configure, and maintain network servers, workstations, and services like QoS, Mail, IPTSP, FTP, HTTP, DNS, Firewall, and IP Routing.
- Network Performance Monitoring: Monitor core network performance, analyze logs, and generate weekly reports to ensure network stability and efficiency.
- Technical Support: Provide technical assistance to internal teams (Maintenance Fusion, Satellite Support) and clients for connection-related issues.
- Routing & Subnetting: Supervise and configure routing protocols (OSPF, RIP, BGP) and understand IP network and subnetting.
- Server & Service Maintenance: Configure and maintain mail servers, proxy servers, web servers, DHCP, DNS, NAT, and other server-related tasks.
- Network Monitoring Tools: Manage network monitoring tools (MRTG, Cacti, Syslog) to ensure system health and performance.
- Security & Backup Solutions: Implement network security measures, including IDS/IPS, and deploy automated backup solutions to protect data and systems.
- Scripting & Performance Tuning: Write shell scripts, create cronjobs, and perform system tuning to optimize server performance.
- VPN & Remote Access Support: Troubleshoot user and remote site VPNs across multiple platforms to ensure secure connectivity.
Education
M. Sc. in Computer Science And Engineering -
Institute of Science & Technology (IST)
Dhanmondi, Dhaka, Bangladesh. 04.2001 - 01.2011
B. Sc(Hons'). in Computer Science And Engineering -
Dhaka City College
Dhanmondi, Dhaka, Bangladesh.HSC in Science -
Govt. K.C. College
JhenaidahSSC in Science -
Kanchan Nagor Model High School & College
Jhenaidah 04.2001 - 01.2004
Skills
IP addressing
sub netting
data connectivity
local area network (LAN)
wide area network (WAN)
VLAN
VPN
Routing
Switching
Server Configuration
Server Troubleshooting
E-Mail Server
Web Server
Proxy Server
DNS Server
Gateway Server
FTP Server
Access Control List (ACL)
IP-Phones
IP Cameras
Fiber Optic Communication
Radio Connectivity
Data Connectivity
Trainingworkshopsummary
- Microsoft 365 Administration, AT Computer Solution, Dhaka, 01/01/2022 - 30/06/2022;
- MTCNA, CSL Training, Dhaka, 01/03/2015 - 30/09/2015;
- RHCE & RHCSA, Linux Pathshala, Dhaka, 01/06/2014 - 30/06/2014;
- CCNA, Cisco Valley, Dhaka, 01/04/2012 - 30/10/2012;
- WDAD, IAC, BUET, Dhaka, 01/01/2010, 30/06/2010;
Personal Information
- Father's Name: B K M Lutfor Rahman
- Mother's Name: Alatfun Nesa
- Blood Group: B- (Negative)
- NID No: 149713194
- Passport No: A08251849
- Gender: Male
- Nationality: Bangladeshi
- Marital Status: Married
- Religion: Islam (Sunni)
Statementofintegrity
I am A. K. M. Ashrafur Rahman hereby declared that, the provided information is complete and correct.
Timeline
IT Infrastructure Manager
Glenrich International School, Uttara, Dhaka.
03.2024 - Current
Assistant Manager - Information Technology
Auko-Tex Group
05.2019 - 02.2024
Senior Executive - Information Technology
Epyllion Group
05.2014 - 05.2019
Network Engineer - NOC
Connect BD Ltd.
12.2008 - 04.2014
M. Sc. in Computer Science And Engineering -
Institute of Science & Technology (IST)
04.2001 - 01.2011
SSC in Science -
Kanchan Nagor Model High School & College
04.2001 - 01.2004
B. Sc(Hons'). in Computer Science And Engineering -
Dhaka City College
HSC in Science -
Govt. K.C. College
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