Blockchain & Web3 Development
Audited smart contracts, dApps, and tokenized platforms across EVM and high-throughput chains.
Blockchain and Web3 work at Prixelo means writing the contracts that hold value and building the applications people use to interact with them. On the contract side, that's Solidity for EVM chains and Rust for high-throughput chains, built on OpenZeppelin's audited standards rather than custom primitives reinvented from scratch. Every contract ships with a Foundry test suite — unit tests, fuzzing, and invariant checks — before it goes near an external audit, because catching a reentrancy bug in review is free and catching it on mainnet is not.
On the application side, this covers the full path from wallet to chain: dApps wired to WalletConnect and viem, token and NFT flows built on thirdweb where it speeds delivery without hiding the underlying contract logic, and The Graph for indexing on-chain data so a frontend isn't polling an RPC node for every state change. The same team writing the contracts builds the DeFi mechanics — DEX, lending, staking, and yield logic — the NFT and token launch flows, DAO governance and treasury systems, and RWA tokenization, so assumptions baked into the contracts don't get lost in translation to the frontend.
This fits teams putting real value on-chain who can't afford to discover a flaw after launch: founders taking a token or NFT collection to mint, protocols building lending or staking mechanics, and DAOs standing up governance and treasury infrastructure. Engagements start around $10,000 for a mint or token launch and scale to $35,000+ for a full dApp or DeFi protocol, sized to how much contract surface and audit rigor the project actually needs.
Our process
Scope & Architecture
Define contract architecture, choose EVM or Rust-based chains, and map the attack surface for the specific DeFi, NFT, or DAO mechanics before writing code.
Contract Development
Build Solidity or Rust contracts on OpenZeppelin standards for the mechanics the project needs — DEX, staking, minting, governance, or RWA tokenization.
Testing & Audit Prep
Run Foundry unit tests, fuzzing, and invariant checks against every contract path, then harden findings before external audit sign-off.
Integration & Launch
Wire the dApp to wallets via viem and WalletConnect, index on-chain activity with The Graph, and deploy to mainnet or testnet.
What we offer
Smart Contract Development
Solidity and Rust contracts built on OpenZeppelin standards, tested and audit-ready
DeFi Protocols
DEXes, lending, staking, and yield systems with rigorous security review
NFT & Token Platforms
Minting dApps, marketplaces, token launches, and RWA tokenization
DAO & Governance
On-chain governance, treasury, and voting systems
dApp & Wallet Integration
Full-stack dApps with WalletConnect, viem/ethers, and The Graph indexing
Technologies we use
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Blockchain & Web3 Development
Blockchain and Web3 development is the work of writing smart contracts that hold and move value on a blockchain, and building the applications people use to interact with them. At Prixelo this covers Solidity contracts for EVM chains such as Ethereum, Base, Polygon, and Arbitrum, and Rust contracts for high-throughput chains like Solana and Near. It suits founders launching a token or NFT collection, teams building DeFi mechanics such as lending, staking, or a DEX, and DAOs that need governance and treasury systems. Delivery typically includes OpenZeppelin-based contracts, a Foundry test suite with fuzzing and invariant checks, the dApp front end with WalletConnect and viem, and indexing with The Graph. Third-party audits are coordinated before mainnet for any contract handling real value. Pricing starts from $10,000 for an NFT mint or token launch and from $35,000+ for a full dApp or DeFi protocol, excluding external audit fees.
Questions buyers ask
What does blockchain and Web3 development include?
It includes the smart contracts, the app users interact with, and the plumbing between them. In practice that means contract architecture and threat mapping, Solidity or Rust contracts on OpenZeppelin standards, Foundry tests with fuzzing and invariant checks, audit preparation, a dApp front end with wallet connection through WalletConnect and viem, on-chain indexing with The Graph, and deployment to testnet or mainnet. The same team handles contracts and front end so assumptions stay consistent.
What is the difference between a smart contract and a dApp?
A smart contract is the code deployed on the blockchain that enforces the rules, such as who can mint a token or how a staking reward is calculated. A dApp is the application around it: the interface, wallet connection, and data indexing that let people use those contracts without calling them directly. Most projects need both, and they work best when designed together.
Should I build on Ethereum, a Layer 2, or Solana?
The right chain depends on transaction cost, speed, tooling, and where your users already hold assets. EVM chains such as Ethereum, Base, Polygon, and Arbitrum share Solidity tooling and wallet support, which keeps options open. High-throughput chains like Solana and Near use Rust and suit apps with many small transactions. The choice is made during scoping, before any contract code is written.
How are smart contracts tested before going to mainnet?
Each contract is tested with a Foundry suite before it goes to an external audit. That suite covers unit tests for expected behaviour, fuzzing to throw random inputs at each function, and invariant checks that confirm core rules always hold, such as balances never exceeding supply. Issues found are fixed and retested, then an independent auditor reviews any contract that will hold real value.
Who is blockchain and Web3 development for?
It is for teams putting real value on-chain who cannot afford to discover a flaw after launch. Typical cases are founders taking a token or NFT collection to mint, protocols building lending, staking, or exchange mechanics, DAOs setting up governance and treasury systems, and businesses exploring tokenization of real-world assets. If the project only needs a database, a blockchain may not be the right tool.