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Carlo Miguel Dy
All seasons

Dec 2023 – Sep 2024 · Remote

Limitless Labs

Senior Blockchain Engineer

Founding engineer (fullstack) on Limitless Exchange — a prediction-market platform on Base shipping across four codebases: API, smart contracts, indexer, and frontend. Limitless Labs raised a ~$3M pre-seed led by 1confirmation in September 2024.

What grew here

The season, in detail.

  • Led backend development using NestJS, Fastify, TypeScript, TypeORM, and PostgreSQL with domain-driven design; migrated the API datastore from MongoDB/Mongoose to PostgreSQL/TypeORM with zero data loss.

  • Automated the previously manual, error-prone market-creation process — frontend forms, REST endpoints, backend middleware, database models, smart-contract integration, and Gnosis Safe multisig workflows collapsed into a single operator action.

  • Built custom FPMM contract iterations (v5, v6) extending Gnosis Protocol's Fixed Product Market Maker with modified storage layout and fee logic, plus LMSR market-maker integration with WETH9 collateral, and multi-chain Hardhat deployment scripts across Base, Blast Sepolia, and Sepolia.

  • Built the Envio-powered blockchain indexer for FPMM and Conditional Tokens events across Base Mainnet, Base Sepolia, UAT, and local, with CoinGecko-priced Slack and Discord trade-alert bots.

  • Built the prediction-markets frontend on Chakra UI with Privy wallet authentication, subgraph-driven data fetching, Farcaster frames, and a dynamic OG image generator; led the full UI/UX redesign including dark mode and mobile-responsive trading.

  • Designed bigint formatting and parsing across frontend/backend boundaries to safely handle Web3 numerical values, and wrote comprehensive Hardhat + Foundry test suites for the Conditional Tokens Framework and market-maker contracts.

  • Conducted code reviews, planning sessions, technical specifications, and requirements discussions with product and non-technical stakeholders.

Tools in the soil

What this season was grown with.

  • TypeScript
  • NestJS
  • Fastify
  • PostgreSQL
  • TypeORM
  • Prisma
  • Viem
  • Solidity
  • Hardhat
  • Foundry
  • Gnosis Safe SDK
  • Envio
  • Chakra UI
  • Privy
  • Farcaster
  • CoinGecko
  • Base

Specimens cultivated here

The project grown this season.

Curious what this experience could grow for your team?

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