Rubel Biswas

Fullstack Developer

Nasr • Fulltime

Dec 2025 - Aug 2026 • 8 mos

*Collaborated with product owners, UI/UX designers, and engineers to define product requirements and overall system architecture. *Designed the database schema and ERD for a multi-vendor e-commerce platform. *Developed scalable backend APIs using Python, FastAPI, SQLAlchemy and PostgresSQL. *Built responsive web applications using TypeScript, Next.js, and Tailwind CSS. *Implemented centralized logging and monitoring with Logstash and Kibana for improved system observability and troubleshooting.

Fullstack Developer

KSCL • Fulltime

Nov 2023 - Dec 2025 • 2 yrs 1 mo

*Developed and maintained a Progressive Web Application (PWA) for online trading, portfolio management, stock monitoring, market analysis, and investment insights. *Implemented and maintained features across both client-facing and admin applications using React, Tailwind CSS, and React Query. *Designed and developed REST APIs and optimized existing backend services using NestJS, TypeORM, and MySQL, with a focus on query optimization, caching, and database indexing strategies. *Built AI-powered workflows and investment features for automated portfolio analysis, stock analysis, and personalized investment recommendations., *Implemented user event tracking and analytics using Google Analytics to monitor product usage and user behavior.

Software Engineer

Barikoi • Fulltime

Apr 2022 - Nov 2023 • 1 yr 7 mos

*Developed and enhanced a Human Resource Management Platform with core modules for employee attendance, salary/payroll management, Task assignment, and real-time location tracking. *Implemented secure authentication and role-based access control (RBAC) to manage user permissions and protect sensitive data. *Built interactive data visualization and reporting interfaces using tables, charts, and maps to help users monitor and analyze data. *Developed scalable and responsive frontend applications using TypeScript, React, Next.js, Material UI, and Ant Design. *Build reusable UI components and NPM component library to improve development consistency, maintainability, and delivery speed across the application.