DeviAI
The work

Proof overpromises.

Real client engagements — shipped and in flight — and a lab of our own products, each labeled honestly, because trust is the product.

01Client work
Live in productionReal Estate Intelligence · Advisory

Key Advisory

A property advisory firm in Pune with a real business and no software at all.

What we built

Their whole platform — the public website, a private login for client firms, three tools their clients use to price and assess projects, and one-click PDF reports they can hand to a developer.

The outcome

Live at keyadvisory.in. The firm runs on it today.

Next.jsReactNode.jsPostgreSQLAWS

We handled

Product strategy & UX design

Full-stack engineering

Cloud architecture & deployment

Ongoing iteration post-launch

In active developmentFinTech · Trading Analytics

TradeMind

A founder who believed traders lose more money to their own habits than to the market.

What we built

An iPhone and Android app where you drop in a screenshot of a trade and it fills in the journal for you, then tells you which of your habits are costing you money.

Where it stands

The screenshot reader and the analysis both work. We are finishing the two app-store builds now.

React NativeTypeScriptOCR pipelineLLM orchestrationPostgreSQL

We handled

Product strategy & UX design

Native iOS & Android engineering

OCR trade-capture pipeline

AI pattern & psychology engine

In active developmentEdTech · Language Education

SprachBrücke

A German language academy running enrolments on WhatsApp, schedules in a spreadsheet, and class recordings on shared links anyone could pass around.

What we built

A new public website that takes enrolments, plus a student area with the class schedule, recordings, homework, and progress — designed and built screen by screen so they could try it before we wired up the backend.

Where it stands

The website is live and taking enrolments. The student area is built and clickable; we are connecting logins and payments now.

Next.js 15TypeScriptPostgresRazorpayCloudflare Stream

We handled

Product strategy & UX design

Front-end engineering

Platform architecture

Production deployment

04APIs & microservices

Real infrastructure, not architecture diagrams.

The backend services we build and publish. Each one is shown by recording it under load and under failure — the interesting part of a queue is what it does when something dies.

docker compose up · whatsapp-normalizerrecorded run
47s · no audio
Source available · v1.0.0

A WhatsApp webhook that survives being killed mid-delivery.

Meta sends the same message twice, in a shape nobody wants to parse, to a URL anyone can find. This sits in front of your app and turns all of that into one clean event.

197

tests passing

98%

statement coverage

0

events lost under kill -9

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