Drag to spin

Open to freelance work and full-time roles

Software engineer in Dhaka. I build web and mobile products, and lead the teams that ship them.

Currently leading development of qzenchat at QzenTech. Before that, Soli, Readlink and FlowSimple, plus client work for startups in the US, the UAE and Switzerland.

Years shipping production code
0+
Products launched or on the way
0
Countries I've built for
0
Platforms: web, iOS, Android
0

01Products

Products I built with a team

Startups where I was on the core team or leading it. All four are live with real users.

01 / 04AI SaaS

qzenchat

Project Lead, 2026

qzenchat answers customer messages for small businesses on WhatsApp, Instagram, Messenger and webchat. It can take an order, book an appointment, or pass the chat to someone on the team with the full history attached.

  • Next.js
  • NestJS
  • Fastify
  • Vercel AI SDK
  • PostgreSQL
  • Better Auth
  • GCP
  • Google Calendar API
  • Google Docs and Sheets
Case study→
qzenchat
02 / 04SaaS, PWA

FlowSimple

Lead Engineer, 2025

FlowSimple is a CRM for small home service contractors: roofing, HVAC, plumbing, lawn care. A job moves from lead to estimate, schedule, field work and payment without anyone retyping it.

  • Next.js
  • NestJS
  • Fastify
  • PostgreSQL
  • Better Auth
  • Google Gemini
  • Google Maps SDK
Case study→
FlowSimple
03 / 04iOS, Android, Web

Readlink

Software Engineer, core team, 2025

Readlink is a social app for readers. You keep your library, get one book picked for you each week based on what you finished, and see how much your shelf overlaps with other readers and with 300+ curated libraries.

  • React Native
  • Next.js
  • NestJS
  • Fastify
  • PostgreSQL
  • Clerk
  • Google Gemini
  • GCP
Case study→
Readlink
04 / 04iOS, Android, Web

Soli

Software Engineer, core team, 2025

Soli is accounting for freelancers and small businesses in the UAE. Quotes, invoices, VAT and a dashboard that shows where the money went this month.

  • React Native
  • Next.js
  • NestJS
  • Fastify
  • PostgreSQL
  • Clerk
  • Google Gemini
  • GCP
Case study→
Soli app on a phone

02Freelance and contract

Built for clients

Shorter engagements where I owned the build end to end, from the first call to handing over the code.

03Experience

Where I've worked

Mostly small remote teams where everyone ships, and the job is whatever the product needs that week.

Intern in 2022.
Project lead in 2026.

Companies
3
Roles
5
  1. Q

    QzenTech

    Sep 2026 to now

    Contract, Dhaka, hybridCurrent

    • Project Lead

      Sep 2026 to now

      Leading development of qzenchat. I own the architecture, plan the work and review most of what ships.

      • Software Infrastructure
      • Software Design
      • Team Leadership
  2. Quanteron

    Nov 2024 to Sep 2026

    Full-time, Remote, US

    • Software Engineering Team Lead

      Aug 2025 to Sep 2026

      Ran the team behind FlowSimple, from planning and estimates to code review and releases.

      • Leading Development Teams
      • Project Management
    • Software Engineer

      Nov 2024 to Aug 2025

      Core engineer on Soli and Readlink, shipping to the web, the App Store and Google Play.

      • React Native
      • Next.js
      • NestJS
  3. Reinforz AI

    Jun 2022 to Mar 2023

    Full-time, Remote, US

    • Junior Software Engineer

      Sep 2022 to Mar 2023

      Backend services and the infrastructure under them.

      • Software Infrastructure
      • Software Design
    • Software Engineer Intern

      Jun 2022 to Sep 2022

      My first job. REST APIs on AWS.

      • AWS
      • REST APIs

04Toolbox

What I build with

Plus AWS, Google Workspace connectors and Apple's on-device models when the project calls for it.

Tools: TypeScript, Next.js, React, React Native, NestJS, Fastify, Node.js, PostgreSQL, Tailwind CSS, Vercel AI SDK, Google Gemini, GCP, Vercel, PlanetScale, Better Auth, Clerk, Google Maps SDK, Telegram Mini Apps SDK, WhatsApp.

05Contact

Have a role or a project in mind?

Hiring

Full-time roles where I can own features end to end or lead a small team.

Founders

A technical lead for your first version, set up so version two isn't a rewrite.

Freelance

MVPs, CRMs and internal tools, mobile apps and Telegram Mini Apps.

Local time

Dhaka, --:-- GMT+6

GitHub

arcaus
I'm writing about

I usually reply within a day or two.