Vol. I — Issue No. 001Tuesday, November 3, 2026

Tafsir Chowdhury

Full Stack AI Engineer — Dhaka, Bangladesh

Full-Stack Engineer Builds Web Products from Idea to Deployment

Building web applications since 2022, Tafsir Chowdhury works across frontend interfaces, backend APIs, databases, and deployment. His work spans AI research tools, sports platforms, staffing, e-commerce, and business operations software.

Currently serving as Full Stack AI Engineer at Standard Insights, Tafsir specialises in durable background functions, idempotent data pipelines, and AI agent toolchains — the quiet machinery behind products that scale.

Full Stack AI Engineer

Standard Insights, NY

Since 2022

B.Sc Computer Science

3.67 / 4.0

Dhaka, Bangladesh

Open to opportunities

On Building Systems That Run When You Sleep

I build complete web applications with TypeScript, React, Next.js, and Node.js, from responsive interfaces to APIs, databases, and deployment. Since 2022, I have worked on examination tools, AI research workflows, and custom platforms that connect a customer experience with business operations.

At Standard Insights, I architect multi-phase AI pipelines using durable Inngest functions, own distributed worker microservices across multiple queue types, and build REST APIs that handle real production load. Before that, at HJ Animation Shop, I built Aximus — an autonomous AI customer support platform powered by RAG and tool-calling agents.

Earlier, at Legal Fist, I built and deployed an online examination platform with timed tests, automatic scoring, and student and admin dashboards. I also contribute fixes and documentation to open-source projects. I hold a Bachelor of Science in Computer Science from the University of the People (CGPA 3.67), and carry software engineering certifications from IBM, Meta, and AWS.

“I architect systems that run when you sleep — multi-LLM pipelines, distributed workers, and APIs that scale without drama.”

Multi-LLM Pipelines, Distributed Systems, Scalable APIs

TypeScript · Node.js · Next.js · AWS · PostgreSQL · Redis

OpenAI · Claude · Gemini · Vercel AI SDK · RAG · Agents

IBM Full Stack · Meta Back-End & Front-End · AWS Fundamentals

Open to work

Current

Standard Insights

Full Stack AI Engineer

InngestGeminiNode.jsRedisAWS ECSDockerMongoDB

Architecting durable AI pipelines and distributed worker systems for a data intelligence platform serving global enterprise clients.

  • 01.Architected a multi-phase, multi-LLM AI report generation pipeline built as durable Inngest functions with retries and concurrency control, replacing one-shot API calls with background jobs.
  • 02.Owned a distributed worker microservice for AI workloads across multiple queue types, including an idempotent Excel/CSV ingestion pipeline with Gemini schema analysis and S3 I/O.
  • 03.Built an AI-powered Survey Builder Agent with Zod schema validation against Gemini structured output for natural-language survey management.
  • 04.Built REST APIs in Express.js with MongoDB and Redis; implemented JWT auth, RBAC, and Google OAuth2 for Google Sheets and Slack integrations.
  • 05.Containerized production services with Docker, GitHub Actions CI/CD, and deployments on AWS ECS and Railway.

HJ Animation Shop LTD

Full-Stack Developer

Next.jsVercel AI SDKRAGDrizzle ORMBetter Auth

Built an autonomous AI customer support platform and a suite of multi-tenant SaaS products for a UK-based creative agency.

  • 01.Built autonomous AI customer support platform (Aximus) using Vercel AI SDK — engineered an agent with dynamic tool calling and a keyword-scoring RAG engine without an embedding API, with HMAC-SHA256 Meta webhook ingestion and atomic DB idempotency locks.
  • 02.Architected multi-tenant SaaS platforms in Next.js and Drizzle ORM, including a floating-point-free commission math engine, custom binary JPEG/PNG metadata parser for AI portrait editing, randomized exam engine with practical video submission grading, and a headless CMS (Parocia) with RSC, dynamic sitemap/JSON-LD, and UUID-hashed file storage.
  • 03.Integrated Better Auth with RBAC, 6-digit OTP 2FA, and session revocation; wired SumUp and UddoktaPay v2 payment flows, and serverless jsPDF routes with font-scaling for dynamic certificate generation.

Legal Fist

Full Stack Developer

Next.jsReactTypeScriptTailwind CSSDigitalOcean

Built and deployed an online examination platform for law students, covering the frontend, backend, and server deployment.

  • 01.Developed timed exams, automatic scoring, question management, and exam-history reports.
  • 02.Built responsive student and admin dashboards using Next.js, React, and Tailwind CSS.
  • 03.Deployed the application on DigitalOcean and resolved issues across the application and server.

Standard Insights

AI-assisted survey creation, research reports, and contextual chatbots.

Next.jsReactTypeScriptNode.jsExpress.js+9 more
  • —Developed survey creation and management interfaces, backend APIs, and database workflows.
  • —Built AI report generation and a natural-language Survey Builder Agent with structured output validation.
  • —Implemented durable background jobs, retries, concurrency controls, and idempotent data ingestion.

KDF Corporation ERP

Custom operations, accounting, and project management software.

ReactTypeScriptHonoTursoSQLite
  • —Built the React frontend, TypeScript/Hono APIs, and Turso/SQLite database.
  • —Implemented double-entry accounting, approvals, and audit trails.
  • —Added tender securities, performance guarantees, and private document storage.

DeLegends Barbershop

Salon booking, multi-location calendars, and staff operations.

Next.jsReactReact NativeTypeScriptPostgreSQL
  • —Built appointment booking, rescheduling, and cancellation workflows.
  • —Developed multi-location calendars, barber working hours, availability, and receptionist booking tools.
  • —Added role-based access, client history, appointment checkout, and payroll reports.

Visual Source

Real-time soccer match operations and social graphic automation.

Next.jsTurborepoBetter AuthPostgreSQLFabric.js+5 more
  • —Architected a multi-tenant soccer club dashboard with isolated workspaces for multiple sports organizations.
  • —Engineered a headless canvas rendering pipeline with Fabric.js, node-canvas, and Sharp, storing compiled matchday graphics in Cloudflare R2.
  • —Integrated Facebook, Instagram, and Twitter Graph APIs with polling and media chunking for automated matchday posting.

Dub

Prepared a mobile layout fix to prevent workspace slug prefixes from overflowing the creation form.

Better T Stack

Prepared a fix for Convex client configuration in Better Auth templates, including regression tests.

“What a great freelancer. Delivering very fast a high quality web application. Very flexible. Very fast response.”
Upwork client · Visual generator web application · 5/5 rating · View work history ↗

By the Numbers

Competitive programming statistics — LeetCode & Codeforces.

238

Total Solved

Across all platforms

70

LeetCode Easy

Accuracy-focused

22

LeetCode Medium

Consistency building

146

Codeforces

Competitive practice

Technical Index

Drag to reorder within categories.

Frontend

Backend

Applied AI

Database

DevOps & Cloud

Latest Writing

Published on Medium.

University of the People

Bachelor of Science in Computer Science

2021 — 2024

Completed

3.67 / 4.0

Online, Self-Directed

Get in Touch

Open to collaborations, contracts, and interesting conversations.

Dhaka, Bangladesh