Case studies

Web3 systems Chainza helped ship.

Protocol interfaces, contracts, indexers, relayers, dashboards, governance tools, and QA workflows built around real onchain failure modes.

10Cases
8Domains
7Public writeups
Representative case

A complete build, end to end

Discuss a build
DeFiPublic project

Velora

A long-term engineering engagement supporting Velora, a multi-chain DeFi liquidity aggregation and intent-based trading system, across protocol infrastructure, smart contracts, backend services, user interfaces, explorers, and developer tooling.

Multi-chain liquidity aggregation and trading infrastructure

Intent-based protocol and smart contract development

Backend, explorer, and user-interface engineering

TypeScriptGoSolidityNode.jsReactethersEVM
Archive

Delivery stories

Open any case for the problem, scope, contribution, evidence, delivery path, and stack.

Wallet InfrastructurePublic project

EXTRA WALLET

A security-focused multichain wallet platform combining isolated transaction signing, modular wallet extensions, cross-chain asset management, and developer infrastructure.

Isolated signing architecture

21-network multichain infrastructure

Modular developer platform

TypeScriptReactNode.jsEVMBitcoinSolana
DeFiAnonymized engagement

Lending Protocol MVP

An end-to-end lending product build focused on readable position state, safer transaction flows, and protocol data that product teams could trust.

Wallet-aware lending flows

Indexed position dashboards

Transaction-state QA coverage

Next.jswagmiSolidityThe GraphNestJSPostgreSQL
RWAAnonymized engagement

Asset Tokenization Platform

A controlled tokenization workflow tying compliance-aware contract behavior to issuer operations and investor state.

Compliance token layer

KYC-gated transfer logic

Issuer admin operations

SolidityERC-3643FoundryReactPostgreSQLREST API
InfrastructurePublic project

Cross-Chain bitoftrade

Cross-chain swap infrastructure with contracts, relayer services, and SDK surfaces for product integration.

EVM swap contracts

Destination-chain relayer service

JavaScript SDK integration path

SolidityNode.jsExpressTypeScriptHardhatweb3
TradingPublic project

Trading Platform bitoftrade

Production-oriented DeFi trading work across frontends, smart-contract research, and secure server-side wallet handling.

0x and dYdX integration research

Trading feature POCs

Widget and live-codebase support

Next.jsTypeScriptweb3ethersHardhatSolidity
GovernanceAnonymized engagement

DAO Tooling System

Governance tooling that made proposal, delegation, and voting state visible to both protocol operators and non-technical stakeholders.

Governor contract extensions

Delegation flows

Proposal and voting-state explorer

SolidityGovernorReactTypeScriptSubgraphSafe
DeFiPublic project

Hyflate

A broad production hardening engagement spanning TypeScript migration, token automation, backend services, monitoring, and operational commands.

TypeScript frontend migration

ERC-20 automation services

Sentry and balance monitoring

NestJSSolidityTypeScriptReactweb3ethers
NFTPublic project

NFT Cross-Chain Bridge

Bridge infrastructure for NFT teleports between Ethereum and EOSIO, designed to recover cleanly after downtime.

Ethereum transfer detection

EOSIO transfer execution

Downtime recovery behavior

TypeScriptExpressWeb3.jsEosJSHardhat
GamingPublic project

Kami

Nervos Layer 2 migration and wallet-flow work for a Web3 gaming-adjacent product with bridge and NFT display requirements.

Nervos and Godwoken migration

Metamask purchase flow

Bridge and NFT display updates

Next.jsTypeScriptweb3ethersHardhatPrisma

Public and private work

Named projects link to public-safe detail pages. Sensitive engagements stay anonymized without flattening the technical substance.

System view

Each case follows the same frame: problem, contribution, scope, evidence, delivery path, and stack.

Useful for scoping

Use the cases to compare your own protocol, integration, or QA surface before sending a brief.

Need proof for your scope?

Share the protocol shape and we will map the relevant architecture, contracts, backend, frontend, and QA risks before the first sprint.

Send a brief