saiydur@portfolio:~$ █
Saiydur Rahman
{ }
< />
> whoami

SAIYDUR
RAHMAN

> cat role.txt

Senior Software Engineer
{ Backend Architect & Team Lead }

> ls contact/
saiydurrahman28081999@gmail.com
+8801999896668
LinkedInGitHub
> uptime: 4+ years of coding excellence
> cat about.md

About <Developer />

// Professional Summary

class SeniorEngineer {

Senior Software Engineer with 4+ years of experience in backend and full-stack development, including system design, modular and event-driven architecture, AI integration, DevOps, and team leadership. Expert in building scalable RESTful APIs using TypeScript (NestJS), ASP.NET Core, and Laravel. Known for architecting high-impact SaaS and EdTech platforms, leading technical teams, mentoring engineers, and collaborating directly with stakeholders from discovery to delivery.

}
// System Info

const profile = {

location: "Dhaka, Bangladesh"

experience: "4+ Years"

specialization: "Backend Architecture"

leadership: "Team Lead (10+ devs)"

focus: "SaaS & EdTech Platforms"

ai_integration: true

}

<skills />

Programming Languages

TypeScript
JavaScript
C#
PHP
Python
SQL

Backend Frameworks

NestJS
ExpressJS
ASP.NET Core
Laravel
Django

Frontend Technologies

React
Next.js
Tailwind CSS
Bootstrap

Databases & Cloud

PostgreSQL
MySQL
MS SQL
MongoDB
Firebase
Docker
Redis
Git
AWS
Azure
> git log --oneline

Professional Journey

// commit 4

Senior Software Engineer

RubizCode, Bangladesh

Oct 2024 – Present
Dhaka, Bangladesh
/* Responsibilities */
  • →Leading a team of 10 developers building SaaS and EdTech platforms
  • →Designed modular and event-driven backend systems using NestJS and ASP.NET Core
  • →Architected and maintained scalable systems including real-time dashboards, leaderboard processing, and analytics
  • →Integrated AI tools such as LangChain, GPT, YOLO, and Gemini for smart exam processing and document reading
  • →Built microservice-compatible plugins (e.g., Doubt Solver) to support scalable monetization models
  • →Conducted interviews and onboarding for junior/mid developers
  • →Managed Docker-based deployments with Traefik and PM2, integrated with CI/CD via GitHub Actions
  • →Used Prometheus and Winston for server health and fault-tolerant logging
  • →Engaged directly with clients for project scoping, demos, and feature planning
// Technologies used
NestJS
ASP.NET Core
Docker
AI Integration
Team Leadership
// commit 3

Software Engineer

Supernova Techno LTD, Bangladesh

Feb 2023 – Oct 2024
Dhaka, Bangladesh
/* Responsibilities */
  • →Developed and maintained RESTful APIs for SMS, IVR, and promotional services
  • →Built and deployed backend services using MSSQL, MySQL, and PostgreSQL
  • →Designed fault-tolerant asynchronous systems for job queues and worker services
// Technologies used
RESTful APIs
MSSQL
MySQL
PostgreSQL
Worker Services
// commit 2

Full Stack Developer (Remote)

Eworld Mauritius

Jan 2022 – Jan 2023
Remote
/* Responsibilities */
  • →Built and maintained websites using raw PHP and CodeIgniter
  • →Collaborated with global developers on blockchain projects
// Technologies used
PHP
CodeIgniter
Blockchain Solutions
// commit 1

Freelance Developer

Fiverr (Remote)

2021 – 2022
Remote
/* Responsibilities */
  • →Delivered tailored full-stack applications for international clients
  • →Focused on scalable, clean-code backend modules and responsive UI/UX
// Technologies used
Full-Stack Development
Custom Solutions
Responsive UI
> docker ps -a

Featured Projects

// container_1

Testiphy

Exam platform with live/offline modules, AI-based OMR checking, and exam analytics.

Role: Team Lead
DAU: 1000+
MAU: 5000+
/* Achievement */

Used YOLO for OMR sheet recognition, BullMQ for bulk processing 10–20K exam submissions. Designed and deployed leaderboard logic to rank users in real-time.

// Tech stack
NestJS
Next.js
PostgreSQL
Redis
BullMQ
Docker
GitHub Actions
Traefik
PM2
// container_2

TopperOn

Modular education ecosystem with LMS, community feed, e-commerce, and AI-driven doubt solving.

Role: Team Lead
DAU: 500+
MAU: 1500+
/* Achievement */

Built unified feed system, integrated ChatGPT for AI-based question answering. Created plugin-based modules to scale monetization and course integration.

// Tech stack
NestJS
Next.js
PostgreSQL
Redis
BullMQ
GPT
Pinecone
// container_3

Daykeeper

EdTech task manager with Kanban interface and KPI analysis.

Role: Team Lead
/* Achievement */

Used analytics to track and visualize team productivity, adopted company-wide. Architected as a plugin-ready tool for internal and client usage.

// Tech stack
ExpressJS
Next.js
PostgreSQL
// container_4

ACS Exam System

High-scale online examination platform for 10K+ students and admins.

Role: Backend Developer
/* Achievement */

Designed scalable real-time exam submission with leaderboard sync.

// Tech stack
NestJS
ExpressJS
Python
Next.js
PostgreSQL
MongoDB
> open live_preview/

Live Projects

// Interactive previews of deployed applications

// project_1

Testiphy

Live and offline exam system with AI-driven OMR scanning

Live
Visit
// project_2

TopperOn

Educational ecosystem with LMS and AI doubt solver

Live
Visit
// project_3

Daykeeper

EdTech task management with Kanban-style boards

Live
Visit
// project_4

ACS Exam System

High-scale online examination platform

Live
Visit
// live_preview.iframe

Testiphy

https://testiphy.com/
// desktop_view_active
Open Full Site
> cat education.txt

Education & Achievements

Education

// degree_info

B.Sc. in Computer Science and Engineering

American International University-Bangladesh (AIUB)

major: "Software Engineering"

minor: "Management Information Systems"

graduation: "2023"

Certifications

// certificates[]
Full Stack Development in ASP.NET Core – Dev-Skill (2022)
Complete Web Development Bootcamp – Udemy (2022)
MERN Stack Development – Coursera (2022)

Achievements

// awards_won
🏆Champion – ACC Hackathon Challenge
🏆Semi-Finalist – CTO Forum Hackathon
🏆Top Contributor – Hacking Lab
> cat contact_info.json

Get In Touch

// Let's connect and build something amazing together

// contact_methods

Contact Information

Location

Dhaka, Bangladesh

// social_networks

Connect with me

LinkedInGitHub
> fetching github data...
// portfolio_footer

© 2024 Saiydur Rahman. Built with Next.js, React Three Fiber, GSAP & Tailwind CSS.

Made with ❤️ and lots of ☕