Abdul Hamid Shuvo portrait
Lead Full Stack Software EngineerBased in Dhaka

Abdul HamidShuvo

I'm Abdul Hamid Shuvo. I work at AllChrono as Lead Full Stack Software Engineer. I have spent 17 years building software, including 9 years at Chaldal (YC S15), where I built and shipped national scale grocery and logistics products from scratch.

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17+YEARS BUILDING SOFTWARE
9+YEARS AT CHALDAL (YC S15)

Philosophy

Building products that hold up in production

I started freelancing in 2009 and later co founded Dwetech. From 2009 to 2016, we delivered more than 60 projects for clients in the USA, UK, Canada, and Australia.

In January 2017, I joined Chaldal (YC S15, about 2,200 staff) when the company had only a minimal desktop site and no production mobile web or native shopper apps. I built the mobile web from zero, rebuilt the desktop experience, and shipped Android and iOS shopper apps as primary engineer.

“Real engineering shows up in reliability, especially under unstable networks and operational pressure.”

I am Lead Full Stack Software Engineer at AllChrono, where I help build the platform behind a global luxury-watch trading marketplace. I still own products end to end, and I lead engineering hiring across senior, lead, and other levels, including product and design interviews.

Selected Impact

Projects with durable product impact

01 / PRODUCTION APP
Chaldal logoChaldal

Chaldal Shopper App

Consumer grocery app for Chaldal national delivery platform. Primary engineer on the original Android and iOS build from the ground up, with ongoing releases and production ownership across the shopper stack.

Android: 1M+ downloads and 4.4 stars. iOS: 4.8 stars. Supports national scale traffic, payments, and fulfillment in a regulated retail environment.

GOOGLE PLAYshopAPP STOREphone_iphone
Chaldal shopper consumer grocery app for national delivery
GogoBangla merchant fulfillment app for ecommerce and f commerce
02 / B2B LIVE
GogoBangla logoGogoBangla

GogoBangla

Merchant facing fulfillment app for Chaldal B2B logistics platform. Ecommerce and f commerce sellers use it for picking, storage, and last mile delivery on the same network used for national grocery scale.

Live on Google Play with ongoing releases. Supports merchant order fulfillment, pickups, and exchanges across Chaldal logistics footprint, including dozens of large stores and hundreds of online merchants.

GOOGLE PLAYshop
03 / REGULATORY
Chalao logoChalao

Chalao (ride-sharing)

Consumer ride-hailing app licensed under Chaldal. I built the application and owned the regulatory path: BRTA meetings, documentation, and enlistment so we could operate in that category.

Chaldal was listed among operators receiving BRTA enlistment certificates in The Daily Star (Dec 2019). The ride sharing line did not continue.

READ PRESS MENTIONnewspaper
Chalao ride sharing project under Chaldal
Chalao Driver React Native app for Chaldal logistics
04 / LIVE APP
Chalao Driver logoChalao Driver

Chalao Driver (logistics)

Production React Native app for Chaldal own last mile drivers. Covers dispatch, navigation, earnings, and field operations.

Designed for real world constraints such as unstable connectivity, location reliability, and battery limits. Full product ownership from specification through production.

EXPLORE PROJECTshop
05 / INTERNAL LIVE
Protocol logoProtocol

Protocol by Chaldal

Internal and mobile collaboration platform used by operations, finance, HR, and engineering teams.

Improved task visibility and coordination at scale with a practical workflow model used by 1,000+ internal users.

EXPLORE PROJECTshop
Protocol by Chaldal internal operations collaboration platform
Subject and EggShell open source frontend stack contribution
06 / OPEN SOURCE
Subject / EggShell logoSubject / EggShell

Subject / EggShell

Open-source application stack contribution focused on frontend layer APIs and foundational component patterns.

Shaped early architecture decisions and reusable building blocks for the frontend layer.

VIEW ON GITHUBcode

Experience

Ownership across products and lifecycle

Present

AllChrono

Dhaka, Bangladesh (remote)

Lead Full Stack Software Engineer

  • Leading full-stack engineering at AllChrono, a global luxury-watch trading platform anchored in Saudi Arabia that provides trusted infrastructure for cross-border transactions.
  • Lead engineering hiring at AllChrono. I run interviews and assessments across engineering levels, including senior and lead, owning the loop and the hiring bar even when other interviewers join. I have also interviewed product and design candidates.
  • Own product architecture across the Next.js marketplace, seller, operator, and landing surfaces together with the NestJS platform API, including identity, authentication, and seller-facing workflows.
  • Shape technical direction on TypeScript services backed by PostgreSQL and Prisma, with Dockerized delivery across the application and API layers.
Jan 2017 to 2026

Chaldal (YC S15)

Dhaka, Bangladesh

Senior Software Engineer

  • Joined Chaldal in January 2017 when the platform had a limited desktop experience and no production mobile web or native shopper apps. Built mobile web from zero, modernized desktop, and shipped Android and iOS shopper apps as a primary engineer.
  • Built Chalao ride sharing under Chaldal licensing. Shipped the app and led BRTA and government side work, including meetings, documentation, and enlistment.
  • Own Chalao Driver for logistics operations. Built and maintain the React Native app used by last mile drivers in production conditions.
  • Build and maintain GogoBangla, a merchant fulfillment app for ecommerce and f commerce workflows across picking, warehousing, and shipping.
  • Shipped Protocol for over 1,000 internal users, maintained multiple operations apps, and shaped early frontend architecture on Subject and EggShell.
Jun 2009 to Dec 2016

Dwetech

Bangladesh (remote client delivery)

Co-founder & Lead Developer

  • Co founded a software company and delivered 60+ projects for clients across the USA, UK, Canada, and Australia.
  • Built product and client systems across PHP, JavaScript, CMS ecosystems, integrations, and automation-heavy workflows.
  • Built in house SaaS products, including a CRM and mobile credit recharge tools, alongside client delivery. Maintained a 5.0 rating across 63 completed projects on Freelancer.com, including multi year engagements with repeat enterprise clients.

Founded

Products I started

Independent tools I found and still use.

One key

Rules every LLM you add

  1. Groq
  2. Gemini
  3. OpenRouter
Rate limited? Next provider. Context stays.
01 / FOUNDERPublic · MIT · self-hosted

Precious

One key to rule them all.

Self-hosted LLM router. You add your own API keys from Groq, Gemini, OpenAI, and other providers. When one hits a rate limit, Precious fails over to the next and forwards the full conversation so chat does not start over.

One prec_ key for Cursor, Python, LangChain, or any OpenAI-compatible client. Seventeen provider adapters. Keys encrypted at rest.

VIEW ON GITHUBcode1 of 2
  • Correctness
  • Nitpick
  • Devil's advocate

One triage queue

Never auto-posts

02 / FOUNDERPublic · MIT · local

PRism

See every angle before you merge.

Local multi-agent pull request review. Point the prsm CLI at a GitHub PR. Specialist passes (correctness, nitpick, devil's advocate) run through AI CLIs already on your machine.

Agents run in parallel and merge into one triage queue. It never auto-posts to GitHub; you paste comments yourself. No PRism API key.

VIEW ON GITHUBcode2 of 2

Stack

Product engineering stack

[ CORE SYSTEMS ]

devices01

Frontend Architecture

TypeScriptReactNext.jsTailwind CSSAccessibilityPerformance
database02

Backend & Data

F#.NETNode.jsNestJSREST APIsPostgreSQLPrismaRedisPHPMySQL
smartphone03

Mobile Delivery

React NativeAndroid ReleasesiOS ReleasesLocation SystemsField operations
architecture04

Staff Engineering Practices

System DesignRelease ManagementCode ReviewCI/CDDockerMentorshipTechnical interviewsHiring

Lab

Interactive Skill Demo

A random micro challenge on each visit. Topics include TypeScript, React, Tailwind, and web APIs.

Frontend lab

A tiny interactive skill demo loads after mount so every visit can get a different challenge without changing the server-rendered markup.

TypeScriptReactTailwindWeb APIs

Arcade break

Quick retro distractions — no account, just play.

Snake

Score 0

Arrow keys or pad below

Reflex

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