> sajib@biswas:~$
./about ./stack ./experience ./projects ./contact
JHENAIDAH, KHULNA, BANGLADESH

sajib kumar
biswas

$ whoami
Full Stack Software Engineer at Selise Digital Platforms
Building AI-powered products end-to-end — React/Next.js/Angular front ends, .NET & Python (FastAPI, LangChain, LangGraph) backends
$
EMAIL CALL LINKEDIN GITHUB
Sajib Kumar Biswas
cat about.md

I'm a full stack software engineer who enjoys turning complex product requirements into fast, reliable products — from React, Next.js, and Angular front ends to .NET and Python (FastAPI, LangChain, LangGraph) backends. Since 2023 I've been building AI-powered conversational products in production at Selise Digital Platforms. Outside of shipping features, I compete in algorithmic contests, which keeps my problem-solving sharp.

B.Sc. in Information & Communication Technology, Islamic University, Kushtia — CGPA 3.33/4.0 (2017–2022)
3rd Position — Programming Fest, SAICT, Islamic University
$ cat ratings.json
CODEFORCES
1476
Specialist
CODECHEF
1791
3★ (Max)
LEETCODE
1690
Max Rating
ATCODER
716
Max Rating
ls -la ~/stack
languages/
C / C++ C# JavaScript TypeScript Python
frameworks/
Angular React Next.js Tailwind CSS
databases/
PostgreSQL MySQL MongoDB
backend & ai/
.NET FastAPI LangChain LangGraph
tail -f experience.log
Software Engineer
Selise Digital Platforms
MAR 2023 — PRESENT
> Built and maintained production-grade frontend applications with React, Next.js, and Angular — scalable, user-centric interfaces shipped to production.
> Developed AI-powered conversational platforms with real-time chat, collaboration, and multimodal features spanning file, image, and speech.
> Built an internal exam-taking platform with Next.js to assess and support the growth of software engineers and QA testers.
> Applied modern state management with Zustand, reusable component design, and performance optimization for maintainable frontend systems.
$ls ~/projects
RIQS.project
Angular .NET
> AI-powered chatbot that lets users upload files and chat directly with their content.
> File-based contextual conversations for accurate, document-aware responses.
> .NET backend powering the chat and file-ingestion pipeline.
Bebrave.project
React shadcn/ui Zustand FastAPI LangChain LangGraph
> ChatGPT-like AI platform with regular chat, group chat, and project-based conversations.
> AI features spanning file generation, image generation, speech-to-text, and text-to-speech.
> Python backend on FastAPI, with LangChain and LangGraph orchestrating the AI features.
> Scalable frontend built for clean UI and predictable state management.
./contact.sh

Let's build something.

Open to interesting full stack & AI-platform work — reach me directly below.

EMAIL iu.ict.sajib@gmail.com PHONE +880 1521-457841
LOCATION Jhenaidah, Khulna, Bangladesh
GITHUB github.com/sajib-kumar-biswas LINKEDIN linkedin.com/in/sajib-biswas-726990228
$ echo "Thanks for stopping by."
© 2026 Sajib Kumar Biswas Built line by line.