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Chintan Limbachiya/Full-Stack & Blockchain Developer

Open to work

I build wallet infrastructure and DeFi products on Chain.

Account abstraction, smart accounts, and the full stack around them. Currently shipping them in production at BLOK Capital.

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01

About

I'm a full-stack developer who has spent the last four years building for Ethereum, from responsive frontends to smart-contract integrations and the serverless infrastructure between them.

At BLOK Capital I work on wallet security and account abstraction, turning new standards like ERC-4337, EIP-7702, and ERC-6551 into products people can actually use. My work sits on the integration side: wiring smart accounts, session keys, and signature flows into apps, and running the serverless backends behind them. Before that I shipped 10+ production web apps and DeFi platforms at Tanθ Software Studio.

I care about clean interfaces, readable code, and shipping things that survive contact with mainnet.

Years on Ethereum
4
Production apps shipped
10+
Workers services in prod
16
AA standards live
3

02

Stack

Web3

  • viem
  • wagmi
  • Ethers.js
  • Web3Auth (MPC)
  • ZeroDev / Kernel
  • Privy
  • Passkeys
  • The Graph

Standards

  • ERC-4337
  • EIP-7702
  • ERC-6551
  • ERC-20 / 721
  • ERC-1271
  • Permit2

Frontend

  • React
  • Next.js
  • TypeScript
  • Tailwind CSS

Backend

  • Node.js
  • PostgreSQL
  • Prisma
  • Supabase
  • Cloudflare Workers
  • Redis

03

Selected work

01

Smithy · AA Workbench— source on GitHub

Covers every Kernel v3.1 flow in one place, so a new account-abstraction feature can be validated in minutes instead of scaffolding a fresh test app.

Passkey-first workbench for smart accounts with 18 ERC-4337 / Kernel v3.1 features in one app: session keys, recovery, paymasters, batched and sponsored userOps.

  • Next.js
  • ERC-4337
  • Kernel v3.1
  • Passkeys

02

TBA Lab · ERC-6551— source on GitHub

Exercises every public TokenboundClient method across both viem and ethers v6, so a token-bound account integration can be validated before any of it ships.

Hands-on ERC-6551 lab where each UI panel maps 1:1 to one SDK call, with a show-calldata toggle for the prepare* variant, running on Sepolia and Base Sepolia.

  • ERC-6551
  • Tokenbound SDK
  • viem / ethers v6
  • Next.js

03

Smart Accounts × Privy— source on GitHub

Reproduces the signature paths that most often break embedded-wallet integrations, EIP-7702 delegation and Permit2 approvals included.

ERC-4337 + EIP-7702 signature flows with Privy embedded wallets: delegate-and-send, typed-data signing, Permit2 approvals, and Base token swaps.

  • ERC-4337
  • EIP-7702
  • Privy
  • Kernel

04

CCTP V2 USDC Bridge— source on GitHub

Handles the paths most bridge demos skip: resume after refresh, manual claim by transaction hash, and both transfer lanes across 7 testnets.

Cross-chain USDC bridge on Circle's CCTP V2 across 7 testnets, with Fast and Standard lanes, resume-on-refresh state, manual claim, and full history.

  • CCTP V2
  • USDC
  • Cross-chain
  • Next.js

05

TaskFlow · AI Project Management— source on GitHub

Proves a multi-tenant SaaS stack end to end: org isolation enforced server-side, live updates over SSE, and LLM insights running on real project data.

Full-stack AI-augmented PM tool: multi-org workspaces, real-time kanban over SSE, sprints and analytics, Claude-powered insights.

  • Next.js 16
  • React 19
  • Prisma
  • PostgreSQL
  • Claude

06

वाणी बहीVaani Bahi— source on GitHub

Turns a shopkeeper's spoken day into a ledger, building the financial history 60M+ Indian MSMEs need to prove income they already earn but can't document.

Hindi voice bookkeeping: speech to transcript to Claude extraction to a SQLite ledger, with correction and clarification flows shared by both the web app and a WhatsApp webhook.

  • Claude
  • Speech-to-text
  • Node.js
  • SQLite

04

AI in the workflow

I build with AI agents in the loop every day, and I ship products that use the same models. The tools below are the ones I reach for, and what each one is actually for.

01

Claude Code
My main driver. Multi-file refactors, reading unfamiliar codebases, and running the test loop while I review the diff.

02

Cursor
Inline edits and fast completions when I already know the change and just want it typed.

03

GitHub Copilot
Line-level autocomplete in the editor, mostly for boilerplate and repetitive test cases.

04

Claude API
In production: structured outputs with Zod schemas, tool use, and streamed responses across TaskFlow, Vaani Bahi, and BLOK's contributor scoring.

05

MCP
Wiring agents to real context, connecting Figma, calendars, and internal services so the model works against live data instead of guesses.

05

Experience

  1. BLOK Capital

    Sep 2024 - Present

    Blockchain Software Developer (Core Developer)

    Core developer on a production wealth-management dApp. Cut onboarding friction with MPC authentication via Web3Auth and self-custodial ZeroDev smart accounts, integrated account abstraction across ERC-4337, EIP-7702, and ERC-6551 to enable gasless and tokenized-account transactions, and moved DAO governance on-chain with Aragon. Built and operate a 16-service Cloudflare Workers fleet on Supabase covering governance, token and Aave v3 on-chain reads, indexing, reporting, and the automated contributor reward cycle.

  2. Tanθ Software Studio

    Feb 2023 - Sep 2024

    Frontend Developer

    Shipped 10+ responsive web apps with React and Next.js, cutting page load times by roughly 30% through code optimization. Built DeFi platforms integrating ERC-20, ERC-4337, and ERC-6551, with live on-chain data and transaction confirmations via Ethers.js across 5+ production apps.

  3. Tanθ Software Studio

    Jun 2022 - Feb 2023

    Full-Stack Developer Intern

    Built full-stack projects with React, Node.js, and MongoDB; first Web3 work wiring up wallet connect and token flows with Ethers.js.

06

Contact

Let's build
something.

I'm open to full-time roles and interesting Web3 projects. My inbox is always open.

chintand3010@gmail.com
Email meRésumé

Elsewhere

© 2026 Chintan Limbachiya

Next.js & Tailwind/Source