HOME/CASE STUDIES/WEB3 PLATFORM
WEB3BLOCKCHAINSECURITY

Web3 Platform Built for Security & Scale

A decentralized platform with secure smart contracts and optimized blockchain performance.

platform.client.com/contracts/VaultV2.sol
AUDITED
VaultV2.sol
Governance.sol
Oracle.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
contract VaultV2 is ERC4626 {
using SafeERC20 for IERC20;
function deposit(
uint256 assets,
address receiver
) public override returns (uint256) {
require(assets > 0, "zero");
emit Deposit(receiver, assets);
return assets;
}
}
Solidity 0.8.20✓ Compiled✓ Tests 127/127
Gas: 48,214
SECURITY AUDIT
Passed · No findings
Trail of BitsOpenZeppelin
TEST COVERAGE
100%
127 tests+ 8.2K fuzz runs
GAS OPTIMIZED
-42%
vs. baseline implementation
CLIENT
Web3 Startup
INDUSTRY
Blockchain
TIMELINE
12 weeks
THE PROBLEM

A Web3 platform that needed to stand up to adversarial conditions.

The client needed a decentralized platform that was both bulletproof and usable — secure enough for high-value transactions, performant enough for mainstream users, and simple enough for non-crypto-native adoption.

Needed secure smart contracts
Required scalable architecture
Needed real-world usability
THE SOLUTION

What we built.

Three integrated layers engineered from the ground up — secure contracts, performant infrastructure, and a frontend real users can actually use.

01
Audit-ready Solidity

Smart contract system

ERC-4626 vaults, governance contracts, and oracle integrations written in Solidity. Formal verification with Certora, fuzz campaigns with Echidna, 100% test coverage with Foundry.

02
Multi-chain ready

Blockchain integration

Ethereum mainnet deployment with Polygon, Arbitrum, and Base expansion paths. Chainlink oracle integration, WalletConnect v2, gas-optimized transaction batching.

03
Production-grade dApp

Frontend + backend system

React + Next.js frontend with wagmi/viem for Web3 connections. Node.js indexing service with The Graph for fast queries. Full observability with transaction monitoring and alerting.

THE RESULTS

Shipped to mainnet. Zero incidents.

A secure, performant, human-usable Web3 platform — delivered on schedule and running clean in production.

Secure
transactions

Zero incidents since launch. Dual external audits, formal verification, active bug bounty.

-42%
gas optimized

Significant gas savings vs. baseline implementation — lower transaction costs for users.

Ready
for real users

Simplified onboarding, WalletConnect v2, human-readable error messages. Web3 UX done right.

Production
system deployed

Shipped on schedule in 12 weeks. Live on mainnet with expansion paths to L2s queued up.

TECH STACK

The stack behind it.

A proven stack for production Web3 applications — battle-tested, secure, and maintainable for years.

Solidity

Smart contracts

Ethereum

Mainnet + L2s

Node.js

Backend + indexing

React

Frontend dApp

Our smart contracts passed two external audits with zero findings. Gas costs dropped 42% vs. our first prototype. Shipped on schedule and running clean on mainnet.

AP
Anya Peterson
CTO, Web3 Startup
BACK TO CASE STUDIES

Crypto Exchange Platform

High-performance trading system with liquidity integration and scalable infrastructure.

View
— LAUNCHING SOMETHING?

Launch your Web3 platform with confidence.

Book a 30-minute strategy call. Bring your Web3 thesis — we’ll pressure-test the security model, scope the contracts, and tell you honestly what it takes to ship.