One person. Direct. Accountable.

Tahir Rasool is the developer behind ZUMX and the person you speak with. The intent is simple: whoever you are talking to is whoever is building the work.

A dark, quiet desk with a keyboard and a closed laptop, lit by a lime strip light

Tahir Rasool

His public background is backend and Android development. His public work spans products and open-source tools, four of which are written up on the case studies page.

ZUMX is an independent practice, not an agency and not a team: one person (Tahir Rasool). There is no account manager between the conversation and the build, and no layer that translates what you said into what gets made.

  • Backend development
  • Android development
  • Independent products
  • Open-source tools

Four principles, applied every time

Nothing here is a marketing claim. Each one changes what actually happens in a project, which is why each one is written as a practice rather than a promise.

Smallest useful thing first

The goal is the smallest build that solves the real job. Scope that is honest about what is included makes a reviewable project possible.

Direct, because there is one of him

Questions go to the person who will do the work. There is no handoff to understand the brief twice and no account layer to translate your words into someone else's.

Written scope, reviewable work

What is included and what it depends on is written before the build. Work is built so there is always something concrete to review.

Handover and ownership, explicitly

Who owns what, how access moves, and what happens after. Ongoing support is scoped separately instead of assumed.

What this page deliberately does not say

A studio site that overstates is worse than no studio page. The following are absent on purpose, not overlooked.

  • No biography beyond the public background: backend and Android development.
  • No years of experience, credentials, awards or certifications are claimed.
  • No location or service area is stated.
  • No team and no other named people. ZUMX is Tahir Rasool.
  • No client history. Nothing on this site is presented as a client engagement.

One point of contact

Email tahir@zumxlabs.xyz or WhatsApp. If the work is a good fit and the conversation works, it goes ahead. There is no qualification call in between.

Where the facts come from

Everything asserted about ZUMX on this site is also in the canonical machine-readable profile, generated in three formats from one JSON source. If the page and the profile ever disagree, the visible site is authoritative and the inconsistency gets fixed rather than papered over.

Read the agent resources

Plain-language field notes

Four notes on what a first website needs, when a custom app is justified, how to scope an AI feature, and where project value actually comes from.

Read the notes

Talk to the person who does the work

Describe the problem in plain language. There is no booking link and no qualification call, just email or WhatsApp.