Hello, I'm

Mir Tanim Ahmed

Backend Engineer

Building backend systems and the products around them.

View My Work Get in Touch
const developer = {
  name: "Mir Tanim Ahmed",
  role: "Backend Engineer",
  languages: ["TypeScript", "Python", "C#"],
  stack: ["NestJS", "Express", "FastAPI", "ASP.NET Core"],
  also: ["Flutter", "Next.js", "AI"],
  passion: "Building useful things"
}
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About Me

Mostly backend, but I go wherever the project takes me.

I'm a backend developer who spends most of his time building APIs, designing data models, and wiring up real-time and payment systems. I work mainly with .NET, Node.js, and Python, depending on what the project calls for.

I've also built Flutter mobile apps, Next.js frontends, and admin dashboards when the project needed it — and recently I've been integrating AI features like semantic search and automated evaluation into the products I work on.

I like understanding how the whole product fits together, not just my corner of it.

Career

My professional journey in software development.

Flexloop

Full-Stack Developer

Remote — Bangladesh

Nov 2025 – Present
  • Developing full-stack applications using ASP.NET Core (C#) and Next.js, with SQL Server for relational data modelling, AWS S3 for media storage, and SignalR for real-time WebSocket interactions.
  • Reduced video load times by 80% by engineering a server-side FFmpeg transcoding pipeline generating multi-resolution HLS streams with adaptive bitrate quality.
ASP.NET CoreC#Next.jsSQL ServerSignalRAWS S3FFmpeg

RentYard Inc.

Backend Developer

Remote — United States

Mar 2025 – Oct 2025
  • Designed the multi-tenant RESTful API (Node.js/Express/TypeScript) with 50+ endpoints, JWT auth, and RBAC. Built a hybrid search engine (Weaviate vector search, LLM intent extraction, fuzzy matching) achieving 90%+ accuracy.
  • Delivered automated Stripe billing workflows, an async task queue (BullMQ + Redis) reducing response times by 5x, and a real-time chat system (Socket.IO).
  • Deployed with Docker, CI/CD, and AWS. Recognised as "Best Employee of the Month" (Jul 2025).
Node.jsExpressTypeScriptPostgreSQLRedisBullMQSocket.IODockerAWSStripe

Sparktech Agency

Backend & DevOps Developer

Dhaka, Bangladesh

Jun 2024 – Mar 2025
  • Built backends (Node.js, ASP.NET Core/C#) powering 6+ client platforms with 100k+ daily API requests. Designed schemas in PostgreSQL and MongoDB, cutting query times by 50%.
  • Integrated Stripe Connect for split payments, real-time messaging (Socket.IO/SignalR), and push notifications (Firebase).
  • Led DevOps setup (Docker, CI/CD, AWS/DigitalOcean), reducing deployment cycles from hours to minutes.
Node.jsASP.NET CoreC#PostgreSQLMongoDBSocket.IOFirebaseDockerAWS

Projects

Some of the projects I've built, from full-stack applications to specialized APIs.

DentaPlus

B2B dental supplies e-commerce platform for Australian dental professionals. Features a NestJS backend, Next.js customer storefront, Next.js internal admin dashboard, custom credit accounts (aging balances), QuickBooks Online syncing (webhooks/CDC), tiered pricing, eWay integration, and BullMQ async queues.

Next.jsNestJSTypeScriptPostgreSQLPrismaQuickBooks APIBullMQRedisJotaiZustandeWayAWS S3Tailwind CSS

PetSocial

Social networking platform for pet owners — backend, Next.js web app, and admin CMS. HLS video pipeline, SignalR real-time chat/feed, multi-device presence, S3+CloudFront, Docker + CI/CD. Built at Flexloop.

ASP.NET CoreC#SQL ServerRedisSignalRNext.jsTypeScriptFlutterFirebase

Islami Jindegi

Independent Islamic knowledge platform — sole technical maintainer. ASP.NET Core .NET 10 backend + Flutter app with offline-first content sync, prayer alarm engine, Quran/audio streaming, and Riverpod reactive state.

FlutterRiverpodASP.NET CoreC#PostgreSQLEF CoreAWS S3FirebaseDriftjust_audio

RentYard

Property rental marketplace with AI-powered semantic search (Weaviate + LLM + fuzzy matching), Stripe subscription billing, BullMQ async queues, Socket.IO chat, and AWS S3 media pipeline.

Node.jsTypeScriptExpressMongoDBWeaviateBullMQRedisStripeSocket.IOAWS S3

DeshiLeague

Multi-sport tournament platform (Cricket, Football, Badminton, Carrom, Free Fire) with live ball-by-ball scoring, real-time Socket.IO, bracket engine, and Expo push notifications.

Node.jsTypeScriptExpressPostgreSQLPrismaSocket.IOCloudinaryExpo
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Tech Stack

Languages, frameworks, tools, and services I use across backend, web, app, and DevOps work.

Language

C# JavaScript TypeScript Python Java C Dart

Backend

REST API Socket.IO SignalR Express Django FastAPI ASP.NET Core

Database

PostgreSQL SQL Server MongoDB SQLite Redis Prisma EF Core SQLAlchemy SQLModel

Web

React Next.js Tailwind CSS Redux RTK Query Zustand

App

Flutter Riverpod Dio

DevOps

Git Docker Linux Bash CI/CD (GitHub Actions) AWS EC2 AWS S3

Service

Stripe RevenueCat

Resume

A quick overview of my experience and skills.

2+ Years Experience
15+ Projects Completed
10+ Technologies
4+ Products in Production

Want to know more?

View my resume for a detailed overview of my education, experience, and skills.

View Resume

Get in Touch

Have a project in mind or want to collaborate? Feel free to reach out!

Let's Connect

I'm always interested in hearing about new projects and opportunities. Whether you have a question or just want to say hi, I'll do my best to get back to you!