Mehbub

Mehbub

Open to opportunities

ThinkerBuilderWanderer

Software Development Engineer
Kolkata, West Bengal

I build products end to end with TypeScriptTypeScript, ReactReact, Next.jsNext.js, and Tailwind CSSTailwind CSS. On the backend I reach for Node.jsNode.js, PythonPython, PostgreSQLPostgreSQL, Redis, Prisma, SupabaseSupabase, and AWS (SES, S3, RDS, ElastiCache). I design reliable backends—queues, webhooks, and clear APIs—and ship with Docker. I care about performance under load, observability, and UX that still makes sense when something breaks.

Tech Stack

Experience

HoE

Software Development Engineer

House of EdTechKolkata, India
Oct 2025 – Present

Platform and backend work: async job workers, subscription billing, real-time integrations, secure webhooks, and AWS/Turborepo/Bun tooling.

  • Wrote async job workers with BullMQ + Redis using lease-lock heartbeat coordination and exponential backoff, bringing duplicate job executions to zero across restarts.
  • Shipped a subscription state machine covering coupon-reserved renewals, scheduled plan changes, and cancellation-at-period-end, cutting billing escalations by ~40%.
  • Wired up real-time market data via Fyers WebSocket with protobuf decoding and auto-reconnect, tracking 200+ symbols live and closing trade calls within <100ms of a target/stop-loss hit.
  • Added timing-safe HMAC verification and a DB-backed replay guard to webhook ingestion, eliminating replay-based double-charges from Digio and KRA in production.
  • Built coupon dispatch over AWS SES and WhatsApp (WATI) with row-level locking and DB check constraints, hitting 97%+ delivery success and ruling out duplicate sends.
  • Set up a Bun + Turborepo monorepo with branch-based CI/CD and blue/green container switching, cutting deployment time by ~50% over the old shell-script workflow.
HoE

Full-Stack Developer Intern

House of EdTechKolkata, India
Jul 2025 – Sep 2025

Greenfield product: Next.js UI, eKYC/e-sign integrations, Node/PostgreSQL APIs, AWS ECS, and Telegram notifications.

  • Built a mutual fund platform from scratch using Next.js (TypeScript), Tailwind CSS, and ShadCN UI, delivering a modern and responsive user interface.
  • Implemented smooth user onboarding, integrating eKYC and e-sign workflows with third-party vendors (CAMS, Digio), increasing user retention by 30%.
  • Developed backend APIs using Node.js and PostgreSQL, ensuring secure and scalable data handling for portfolios, transactions, and fund search.
  • Deployed the platform on AWS using ECS Fargate and S3 for storage, with a fully Dockerized deployment and automated scripts, improving deployment speed by 60%.
  • Integrated a Telegram bot for automated notifications and user interactions, handling API rate-limiting and ensuring 99% uptime.
AP

Project Maintainer

Apertre 2.0 (Open Source Program)Remote
Feb 2024 – Apr 2024

Open-source program coordination and code review across multiple repositories.

  • Reviewed 60+ PRs and maintained project-wide coding standards across multiple repositories.
  • Co-ordinated with contributors from diverse backgrounds, ensuring smooth collaboration in an asynchronous environment.

Featured projects

Clinkr Modern link-in-bio SaaS

Link-in-bio SaaS with personalized pages, link management, and real-time analytics dashboards. Custom short codes and slugs, QR generation with expiration, and analytics (device, browser, geolocation, profile views) stored securely. Supabase backend with RLS for scalable data access.

React · Supabase · Tailwind CSS · Framer Motion

ClueFind Developer portfolio platform

Portfolio platform for skills, projects, and achievements: AI profile builder, skill endorsements, GitHub integration, and customizable public profiles. Responsive UI with Next.js, Tailwind, and Radix UI; Prisma and PostgreSQL on the backend; Docker and CI/CD for deployments.

Next.js · TypeScript · Tailwind CSS · Radix UI · Prisma · PostgreSQL

MCP Search Server Model Context Protocol

Minimal Model Context Protocol server exposing search_file for Cursor, Claude Desktop, and a small CLI.

TypeScript · Node.js · Express · MCP

Hirebot Chrome extension

Chrome extension to save and autofill Q&A for job applications — fewer repetitive forms, faster applications.

JavaScript · Chrome Extension

Show all projects

Let's Work Together

Get in Touch

Happy to chat — no pressure. If something here resonated, pick whatever channel you like; I read everything and reply when I can.

I usually reply within a day when possible.

A journey of a thousand miles begins with a single step, but the right direction matters most.

· Lao Tzu