Mohammed Sujan
Hire Me
Available for remote work worldwide

Network, System &
Cloud Engineer

7 years designing, deploying, and hardening core network and server infrastructure for IIG/ISP operators — routing, virtualization, monitoring, and cloud, kept online.

3Roles Held
9Certifications
12Services Offered
RemoteAvailable
AWS Google Cloud AWS RDS / VPC / Lambda AWS EC2 / S3 / IAM Nagios Cacti Observium Zabbix
About

Built for uptime.

I am a diligent Network and System Engineer with 7 years of experience in the IIG and ISP industry across Bangladesh's telecom sector. My work spans network design and implementation, multi-vendor routing and switching, virtualization, Linux/Windows server administration, cloud infrastructure, and disaster recovery.

ReliabilityDesign for failure, recover fast
DocumentationClear runbooks, clean handoffs
Security-firstFirewalls, RBAC, hardened access
Team LeadBudget, planning, delivery
AvailabilityRemote, worldwide
Emailsujanmirza20@gmail.com
Phone+8801815089100
Current RoleAssistant Manager, Bangla Trac Communications Ltd.
3
Roles Held
3
Companies
9
Certifications & Trainings
12
Services Offered
Skills

Stack & specializations

Multi-vendor networking, systems administration, cloud, and automation — the layers that make an ISP network reliable.

Cloud, Monitoring & Scripting

AWSGoogle CloudAWS RDS / VPC / LambdaAWS EC2 / S3 / IAMNagiosCactiObserviumZabbixGit / GitHubChef

Networking

ciscoCisco Routing & SwitchingMikroTikJuniperHuaweiFortinetRadiusSophos FirewallsIPv6 Planning & DeploymentFTTx DesignVPN / IPsec / Tunneling

Systems & Virtualization

Linux (RHCE / RHCSA)CentOS / Ubuntu / Alma LinuxWindows ServerVMware ESXiXen ServercPanel / WHMVesta PanelZimbra / Qmail
Services

What I can do for your infrastructure

End-to-end network, systems, and cloud engineering — available remotely, worldwide.

Network Design

Topology planning, FTTx design, multi-vendor routing & switching.

System Administration

Server provisioning, hardening, backups, and disaster recovery.

Linux Administration

RHEL, CentOS, Ubuntu — DNS, FTP, mail, and log server management.

Windows Administration

Windows Server deployment, configuration, and maintenance.

Cloud Solutions

AWS architecture — EC2, S3, VPC, IAM, RDS, and cost-aware scaling.

DevOps Automation

CI/CD pipelines, Git workflows, and configuration management with Chef.

Virtualization

VMware ESXi and Xen Server deployment, VM lifecycle, and image management.

Monitoring Solutions

Nagios, Cacti, Observium, and Zabbix setup for full-stack visibility.

Cybersecurity

Firewall policy, access control, and hardened perimeter configuration.

IT Consulting

Infrastructure audits, upgrade planning, and vendor-neutral advice.

Training

MikroTik, CCNA, and OLT instruction for individuals and teams.

Remote Support

Ongoing remote infrastructure support across any timezone.

Experience

Career timeline

Sep 2023 — Present

Assistant Manager

Bangla Trac Communications Ltd. — Pioneer IIG service provider and nationwide ISP
  • Network Architecture & Infrastructure Management
  • Architect, implement, and maintain high-performance core routing and switching infrastructure using Cisco, Juniper, Huawei, and MikroTik equipment.
  • Design and deploy scalable FTTx network solutions, optimizing end-to-end connectivity for enterprise clients.
  • Manage IIG load balancing and traffic engineering to guarantee high Quality of Service (QoS) and seamless network redundancy.
  • Direct upstream ISP coordination to rapidly resolve high-level escalation issues and maintain maximum uptime.
  • Security, Systems & Server Administration
  • Oversee perimeter security by configuring and managing client enterprise firewalls (Sophos, Fortinet).
  • Administer virtualization environments using VMware ESXi and Citrix XenServer, managing VM deployments, snapshot strategies, and system images.
  • Manage critical Linux network services, including FTP, DNS, Name Servers, and Log Servers.
  • Administer web hosting and email infrastructure across cPanel/WHM, Vesta Control Panel, and Qmail.
  • Network Monitoring, Backup & Disaster Recovery
  • Design and deploy enterprise Network Management Systems (NMS) using Nagios Core, Cacti, Observium, LibreNMS, and The Dude for proactive fault detection.
  • Formulate and execute comprehensive backup strategies and Disaster Recovery (DR) plans to ensure data integrity and business continuity.
  • Perform routine health checks, system audits, and capacity planning across core network nodes.
  • Leadership, Project Management & Operations
  • Lead technical teams, aligning operational workflows with management requirements and corporate objectives.
  • Drive project lifecycle management from initial architecture design and budgeting to execution and deployment.
  • Prepare operational reports, performance metrics, and strategic recommendations for executive leadership.
  • Provide agile technical support and execute high-priority directives as assigned by senior management.
Mar 2022 — Aug 2023 · 1 yr 5 mo

Senior Engineer

Grameen CyberNet Ltd. — Nationwide ISP company
  • Managed core network infrastructure and client firewalls; led FTTx design and Xen Server deployment.
  • Ran Linux server administration and multi-tool network monitoring (Cacti, Observium, Dude).
Key accomplishments Planned and implemented IPv6 across the entire network. Recovered a fire-damaged transmitter within 3 hours. Restored all switches after a total power outage at the Baridhara DOHS PoP within 30 minutes.
Sep 2019 — Mar 2022 · 2 yr 6 mo

System Administrator

The Net Heads — Divisional ISP company
  • Managed MikroTik-based network infrastructure and upstream QoS load balancing.
  • Ran FTTx design, Linux FTP/DNS/log server administration, and NMS setup.
Certifications

Certifications & training

Managed live through the admin panel — every credential below reflects the current database.

Verified

MikroTik Certified Routing Associate (MTCRE)

MikroTik
ID: 2308RE16202023
Verified

MikroTik Certified Network Associate (MTCNA)

MikroTik
ID: 2303NA65712023
Verified

Red Hat Certified Engineer (RHCE)

New Horizon CLC
3 months3 months
Verified

Red Hat Certified System Administrator (RHCSA)

New Horizon CLC
3 months3 months
Verified

AWS Certified Cloud Practitioner | AWS Solutions Architect

SEIP
2 months2 months
Verified

CCNA Routing and Switching

Moon IT Institute
3 months3 months
Verified

System Administration and IT Infrastructure Services

Coursera by Google
ID: Y9AD5PS248WM2021
Verified

IPv6 Planning and Deployment

ISPAB
3 days3 days
Verified

Spoken English

S@ifur's
3 months3 months
Education

Academic background

Advanced Certificate for Management Professional

Institute of Business Administration, University of Dhaka

B.Sc. in Computer Science and Engineering

Northern University Bangladesh

Diploma in Data Telecommunication & Network Engineering

Feni Computer Institute

Remote services available

Open to remote-first roles, contracts, and infrastructure consulting — any timezone.

Start a conversation
Contact

Let's keep your network online.

Available remotely, worldwide — full-time roles, contracts, and infrastructure consulting.