Sadman Hasan Miraj

Computer Science & Engineering student — Technical Support & Systems Administration

Dhaka, Bangladesh 11th semester · 139/148 credits

Final-year CSE student at American International University-Bangladesh, with hands-on experience supporting VoIP infrastructure at REVE Systems. Comfortable moving between a Linux terminal, a MySQL console, and a React codebase.

sadmanhasanmiraj@gmail.com +880 1859835554 github.com/SadmanMiraj linkedin.com/in/sadmanmiraj
Portrait of Sadman Hasan Miraj

$cat about.md

Final-year Computer Science & Engineering student at American International University-Bangladesh (CGPA 3.66/4.00) with hands-on industry experience as a Support Intern at REVE Systems, a global VoIP and telecommunication solutions provider. Skilled in Linux system administration, MySQL database operations, network troubleshooting, and international client support. Proficient in C/C++, Python, JavaScript, and React with a strong foundation in network security and full-stack development. Passionate about building secure, efficient systems and solving real-world technical problems.

$cat experience.log

Support Intern — REVE Systems

Software Services Department

Dhaka, Bangladesh On-site Jun 2026 – Sep 2026
  • supportProvided technical support to international VoIP service providers across multiple countries, resolving issues including call connection failures, SMS delivery errors, voice quality degradation, call drops, and recharge/top-up failures.
  • voipPerformed installation, configuration, and maintenance of REVE Systems' VoIP products including iTel Switch (softswitch) and iTel Mobile Dialer for global clients.
  • sysadminAdministered Linux server environments using commands such as grep, sed, awk, ps, top, screen, rsync, scp, ftp/sftp, find, chmod, tar, and vi for diagnostics, log analysis, and system maintenance.
  • databaseExecuted MySQL queries for database monitoring, troubleshooting, and client data verification in a production telecommunication environment.
  • monitoringMonitored server health, storage capacity, and uptime; escalated and resolved incidents including server downtime, storage saturation, and server migration tasks.
  • collabCoordinated online client support through a ticketing system, WhatsApp, Microsoft Teams, and phone calls within a distributed team of 22+ support engineers across Bangladesh, India, and Pakistan.
  • trainingParticipated in client training sessions and internal technical review meetings for complex, high-priority support cases.

$ls ~/projects

online-car-service-platform/

Full-stack web application
PHPMySQLJavaScript (AJAX/JSON)HTML5CSS3
  • Built a full-stack car service booking system handling 3+ user roles with real-time AJAX updates, eliminating full page reloads through dynamic rendering.
  • Developed an admin dashboard managing 5+ service categories and the complete user lifecycle, consolidating multi-role workflows into a single deployable codebase.
3+ roles5+ categories

interactive-2d-maze-game/

Graphics programming
C++OpenGLGLUT
  • Engineered a real-time 2D maze renderer in C++/OpenGL achieving smooth 60fps gameplay with a custom collision detection engine across dynamically generated levels.
  • Implemented a 4-state game-state machine and keyboard event system, reducing input latency and delivering consistent frame-rate performance within a fixed render loop.
60fps4-state FSM

travel-group-management-system/

Software engineering
SDLCUMLER Diagrams
  • Produced 10+ SDLC artifacts including use-case diagrams, ER diagrams, and architecture specifications for a multi-user travel coordination platform serving 3 distinct user roles.
  • Conducted requirements analysis across 15+ functional requirements and modeled system behavior via UML diagrams, reducing ambiguity in the development blueprint.
10+ artifacts15+ requirements

$systemctl status skills.target

programming-languagesactive (running)
CC++PythonJavaScript (ES6+)PHP
frontendactive (running)
React.jsHTML5CSS3AJAX
backend-and-databaseactive (running)
PHPMySQLREST APIs
systems-and-administrationactive (running)
Linux (Ubuntu)Shell CommandsServer MonitoringOracle VirtualBox
networkingactive (running)
TCP/IPNetwork TroubleshootingCisco Packet TracerVoIP Fundamentals
cybersecurityactive (running)
Network SecurityLinux SecurityVulnerability AssessmentSystem Administration
graphicsactive (running)
OpenGLWebGLReal-Time RenderingCollision Detection
tools-and-platformsactive (running)
GitVS CodeMATLABMicrosoft TeamsTicketing Systems

Daily driver commands

The Linux tools reached for most often, on the job and off it.

grepsedawkpstopscreenkillfindlocatetreeheadtailchmodnanovitarziprsyncscpftpsftpping

$cat education.md

  1. 2023 – 2027 (Expected)

    B.Sc. in Computer Science & Engineering

    American International University–Bangladesh (AIUB)

    CGPA 3.66/4.00 · 11th semester · 139 of 148 credits completed

    Relevant coursework: Operating Systems, Computer Networks, Advanced Computer Networks, Database Management Systems, Network Security, Software Engineering, Data Structures & Algorithms.

  2. 2017

    Higher Secondary Certificate (HSC)

    Uttara High School & College

    GPA 4.33 / 5.00

  3. 2015

    Secondary School Certificate (SSC)

    Milestone College

    GPA 5.00 / 5.00

Core competencies

  • Problem-Solving
  • Technical Documentation
  • Attention to Detail
  • Client Communication
  • Analytical Thinking
  • Team Collaboration
  • Research & Development
  • Time Management
  • OOP & System Design
  • Cybersecurity Fundamentals
  • Quick Learner
  • Troubleshooting

Languages

BengaliNative
EnglishProfessional working proficiency

Interests

Travelling · Riding · Football · Volleyball · Watching Movies · Exploring New Technologies

Get in touch

Finishing my final year at AIUB and looking to put what I've learned to work in support, systems administration, or software engineering roles. Reach out any of these ways.

GET/email sadmanhasanmiraj@gmail.com
GET/phone +880 1859835554
GET/github github.com/SadmanMiraj
GET/linkedin linkedin.com/in/sadmanmiraj-51809a203
GET/location Dhaka, Bangladesh