Sid Kapoor

Smart contract & backend engineer

I build DeFi contracts and the backend behind them: launchpads, prediction-market RFQs, relayers, stablecoins. 3+ years, mostly at IQ Industries.

X · GitHub · LinkedIn · Email

now

  • Impulse (in progress): leveraged perps on any asset, with auto-deleveraging as the only backstop. Paper-trading exchange included.
  • Peg liquidity + hedging (in development, at IQ): holds order-book liquidity around a peg and hedges the exposure on Polymarket.

shipped

IQ AI: token-launch platform

$2M+ TVL · 3 EVM chains · in production for ~18 months

One of the main engineers: token deployment, DEX integrations, liquidity migration, and LayerZero OFT deploys.

Prediction-market parlays: RFQ + gasless relayer

EIP-712 · Redis · WebSockets · PostgreSQL

Built the RFQ flow from maker quotes to signed trade terms, plus parts of the EIP-712 gasless relayer that executes them.

KRWQ: KRW stablecoin

KRW 1B+ on-chain volume · in production

Tests, deployments and keeper services.

building

Aquifer

Cross-venue prediction-market terminal · work in progress

Prediction markets and liquidity from multiple venues in one terminal. Makers quote across venues through one RFQ integration.

IQLend: leverage on a token with no oracle

Solidity · Foundry · Morpho Blue · Curve · Fraxswap

Built solo. Leveraged longs and shorts on $IQ, using a Fraxswap TWAP oracle and flash-loan-assisted open and close.

noctua: intent-based fixed-rate lending

Solidity · Foundry · TypeScript · in progress

Fixed-term loans as EIP-712 intents, matched off-chain and settled on-chain.

MatchPulse: live sports markets on Solana

Anchor · TypeScript · TxODDS hackathon

Halftime betting markets priced from real odds and settled trustlessly with Merkle proofs.

stack

  • Contracts: Solidity, EVM, EIP-712 signed execution, Foundry (fork, fuzz, invariant, integration tests), Slither, Tenderly
  • DeFi: AMM liquidity and migration, RFQs, lending and liquidations, protocol accounting, TWAP oracles, MEV
  • Backend: TypeScript, Node.js, Rust, NestJS, PostgreSQL, Redis, BullMQ, WebSockets, Docker, AWS
  • Observability: Prometheus, Grafana, Better Stack, OpenTelemetry

background

  • IQ Industries: smart contract & backend engineer, August 2023 to present, remote
  • ETHGlobal Paris 2023: Worldcoin Prize, for a ZK-proof identity verification project for DAO governance

say hi

Hiring for smart contracts or backend? Email me or reach out on Discord: 0x_snake.

To follow what I'm building, I'm on X at @coding_sid.