billahdotdev

Open to new projects

Code, ads, AI, and the server it all runs on.

I am Masum Billah, billahdotdev everywhere online, because there are a thousand Masum Billahs and only one of me. One person answers for all of it, so nothing gets lost between the developer, agency, and hosting company.

Nine years of it, for businesses in Bangladesh and abroad.

See the work Talk on WhatsApp

Usually replies within a few minutes, Dhaka and Manila time.

Nothing here is a claim you have to take on faith

  1. Developer

    This page. No framework, no third party script, two small font files, and not a single line of JavaScript. Measure it yourself.

    Run PageSpeed on it

  2. Marketer

    Digitalizen, my agency, where the tracking I sell is already running on itself.

    Open the agency

  3. AI

    A Bengali sales agent on a live number. It reads voice notes, follows a question split across four messages, hands over to a human when it should, and admits when it does not know.

    Message it

  4. Infrastructure

    Four cores, twenty four gigabytes, five services, three years without a rebuild. My hardware, not a subscription.

    Ask me about it

  1. What I fix

    Seven things that quietly leak money, and what I hand over to stop each one. 7 services

  2. Selected work

    Built, measured, and still running. Named clients, with permission. 5 case studies

  3. Writing

    What I learned the expensive way, written down so you do not have to. 6 pieces

  4. How I learned this

    Mostly self taught, and the paper that confirms it.

  5. What I build with

    Not a list of logos. What each thing is for, and why it was picked. 4 layers

  6. Questions people ask

    Usually in the first ten minutes, usually by someone who has been burned before. 8 answers

  7. Start a conversation

    Tell me what you are trying to build. WhatsApp is quickest.