Web3 & DeFi Engineering
The application layer - protocols, dApps, wallets, and the infrastructure that makes them usable.
We build the application layer that sits on top of smart contracts: DeFi protocols (DEXs, lending, staking, yield), full-stack dApps with wallet integration and account abstraction, subgraph indexers, NFT marketplaces, and the off-chain infrastructure that makes on-chain products usable. Our engineers have shipped on Ethereum, Solana, Base, Arbitrum, and Optimism, with a strong bias for boring, audited dependencies over novel cryptography that has not been battle-tested in production.
What we deliver in this practice.
DeFi protocol engineering
AMM DEXs, lending markets, staking and yield aggregators, perpetuals, and structured products. We design the full stack - contracts, off-chain keepers, oracle integrations, liquidation infrastructure - with attention to the second-order effects that turn a working protocol into a profitable one (or a hacked one).
dApp frontends with wallet integration
Next.js and React Native frontends with wagmi, viem, WalletConnect, RainbowKit, and Privy. We handle the unglamorous parts: chain switching, transaction simulation, nonce management, failed-tx UX, and the dozen reasons MetaMask might reject a request. The frontend should feel native, not like a thin wrapper around the JSON-RPC.
Account abstraction & embedded wallets
ERC-4337 implementations with custom paymasters, session keys, social recovery, and gasless UX. We integrate embedded wallet providers (Privy, Dynamic, Web3Auth, Magic) so non-crypto-native users can sign up with email and never see a seed phrase. This is the single biggest lever for moving Web3 from crypto-natives to mainstream users.
On-chain indexers & subgraphs
The Graph subgraphs, Ponder indexers, and custom event-driven pipelines for serving on-chain data to frontends at sub-second latency. We design schemas with denormalization where it earns it, handle reorg safety, and run the supporting infrastructure - hosted nodes, archive nodes, redundant RPC providers - that keeps indexers reliable.
NFT platforms & marketplaces
Minting platforms, marketplaces with royalty enforcement (ERC-2981), lazy mint flows, ERC-721A for gas-efficient batch mints, and the metadata pipelines that handle IPFS pinning, image generation, and rarity scoring. We also handle the operational layer - allowlist management, mint scheduling, secondary fee splits.
Oracle integrations & MEV protection
Chainlink price feeds and VRF, Pyth low-latency oracles, and custom oracle networks where the standard options do not fit. For MEV protection we use private mempools (Flashbots Protect, MEV Blocker), commit-reveal schemes, batch auctions, and front-running-resistant designs that prevent your users from being the exit liquidity for predatory bots.
This service is a good fit when…
You are building a DeFi protocol and need engineers who have shipped lending or DEX infrastructure before, not just deployed an ERC-20.
Your dApp has a working contract but the frontend is hostile to non-crypto-native users - failed transactions, confusing wallet errors, slow data loading.
You want to onboard mainstream users without seed phrases and need account abstraction or embedded wallets integrated properly.
Your indexer is unreliable, slow, or breaks on chain reorgs and you need someone to rebuild the data layer with proper schema design and operational resilience.
Battle-tested libraries. Boring choices.
Four phases. No discovery deck purgatory.
Discover
We map the on-chain logic, off-chain services, oracle dependencies, and user journey end-to-end before writing code. Output is an architecture document covering contract boundaries, indexer schema, frontend state model, and the operational dependencies (RPC providers, oracle networks, wallet SDKs).
Design
Contracts and frontend are designed in tandem so the on-chain interface matches what the UX actually needs - no late-stage rewrites because the contract returns data in the wrong shape. UX flows are prototyped with mock wallet states before any contract is deployed.
Build
We ship in testnet-first iterations using real wallets and real transactions, never mocked-in-isolation. Indexers run alongside contracts so frontend integration starts on day one of contract development. Weekly demos on testnet show working software, not slides.
Launch
Mainnet rollout with feature flags for graduated exposure, monitoring on contract events and indexer lag, on-call rotation for the first weeks of production, and a 30-day support window. Handoff includes operational playbooks and parameter tuning guides.