Full Stack Developer · Mumbai, India

I don't prototype ideas — I ship them.

Real-time systems, multi-chain infrastructure, and production sites for paying clients.

kaif@portfolio ~

01 · About

Portrait of Kaif Khan

I build the systems businesses actually run on.

I'm a full stack developer who cares more about what happens under load than what a screenshot looks like. Most of my time goes into the parts users never see directly — order books staying in sync, price feeds not falling behind, wallets deriving the right keys on the right chain — because that's where products actually break.

I currently split my time between AdSaathi, an AI ad-management platform I'm building for Indian SME owners who don't have an in-house marketing team, and freelance client work — four live sites for real businesses across real estate, government document services, HVAC, and food ordering.

I'm currently finishing my BCA at Tilak Maharashtra Vidyapeeth (2023 – 2026), and I learn almost everything by building the real thing rather than a tutorial version of it.

0

Projects shipped

0

Live client sites

0

Chains supported

03 · Projects

The engineering problems I chose to solve.

Each one taught me something a tutorial wouldn't. Open a case study for the problem, approach, and trade-offs behind it.

AI SaaS · Currently Building

AdSaathi

Building now

An AI-powered digital marketing platform that lets Indian SME owners run Meta ad campaigns without hiring an agency or learning Ads Manager.

TypeScriptReactViteTailwind v4BunExpress+7

Real-Time Systems

ZenEx

Repo live, deploy pending

A real-time crypto exchange webapp built to stress-test how far a single engineer can push order book synchronization and live pricing without a dedicated trading-infra team.

Node.jsTypeScriptWebSocketsRedis Pub/SubTradingViewExpress
Live demo Source

Blockchain Infrastructure

Multi-Chain Web3 Wallet

Live demo

A self-custody wallet supporting Ethereum, Bitcoin, Solana, and Polygon from one interface, built to actually understand key management rather than wrap an existing SDK.

Next.jsReactTypeScriptEthereumBitcoinSolana+1
Live demo

AI Infrastructure

Local RAG Support Chatbot

Fully local

A customer-support chatbot rebuilt to run entirely on local infrastructure — no external API calls, no per-request cost, no data leaving the machine.

Ollamanomic-embed-textphi3:miniChromaDBPython

Civic Tech · In Progress

Citizen Shield

In progress

An assistant for civic problem-solving — helping citizens navigate and report local civic issues without needing to know which department or process handles them.

Next.jsTypeScriptReact
Source

04 · Stack

What I reach for, and why.

Node.jsExpress.jsBunREST APIsWebSocketsRedis (Pub/Sub, caching)BullMQReactNext.jsTypeScriptTailwind CSSResponsive UI SystemsPostgreSQLPrismaChromaDBMinIODockerMulti-Chain Wallet SystemsKey ManagementCross-Chain TransactionsEthereumSolanaOpenRouterOllama (local inference)RAG pipelinesMeta Marketing APIGitGitHubVercelEnvironment ConfigurationNode.jsExpress.jsBunREST APIsWebSocketsRedis (Pub/Sub, caching)BullMQReactNext.jsTypeScriptTailwind CSSResponsive UI SystemsPostgreSQLPrismaChromaDBMinIODockerMulti-Chain Wallet SystemsKey ManagementCross-Chain TransactionsEthereumSolanaOpenRouterOllama (local inference)RAG pipelinesMeta Marketing APIGitGitHubVercelEnvironment Configuration

05 · Contact

Have a project, a role, or just a question?

I'm open to freelance work and internships. Fastest way to reach me is email — I usually reply within a day.