Skill Profile

DApp Development

This skill defines expectations across roles and levels.

Blockchain & Web3 Web3 Development

Roles

where this skill appears

Levels

structured growth path

Mandatory requirements

the other 10 optional

Blockchain & Web3

Web3 Development

2/22/2026

Choose your current level and compare expectations. The items below show what to cover to advance to the next level.

What is Expected at Each Level

The table shows how skill depth grows from Junior to Principal. Click a row to see details.

Role	Required	Description
Blockchain Developer		Creates basic dApps with wallet connection and reading data from blockchain. Uses wagmi/viem for wallet interaction and React for frontend. Tests on testnet.
Smart Contract Developer		Develops the frontend part of dApps for contract interaction: wallet connection, calling view/write functions, tracking transaction status. Uses wagmi and React.

Role	Required	Description
Blockchain Developer		Develops full-featured dApps with transaction signing, event listening, and optimistic UI. Integrates ENS, IPFS metadata, and The Graph subgraph for data indexing.
Smart Contract Developer		Develops full-featured DeFi dApps: multicall for batch reads, event-driven UI updates, error handling for reverted transactions. Integrates contract ABIs automatically.

Role	Required	Description
Blockchain Developer		Designs dApp ecosystem architecture: frontend, indexer, relayer, API gateway. Implements gasless transactions via Account Abstraction (EIP-4337). Optimizes UX for mass adoption.
Smart Contract Developer		Designs dApp architecture for complex smart contract systems: multi-contract interaction flows, gasless transactions via relayers, offline-first with on-chain settlement.

Role	Required	Description
Blockchain Developer		Defines dApp development standards for the organization. Establishes Web3 UI kit and shared infrastructure: indexers, relayers, monitoring. Coordinates architecture for 5+ dApp products.
Smart Contract Developer		Defines dApp development standards for the organization. Establishes shared UI components for contract interactions. Coordinates frontend-contract integration architecture.

Role	Required	Description
Blockchain Developer		Shapes enterprise dApp platform development strategy. Defines UX approaches for mass Web3 adoption: chain abstraction, social login, gasless experience. Publishes architectural patterns.
Smart Contract Developer		Defines enterprise dApp platform strategy. Shapes UX patterns for complex DeFi interactions. Defines chain abstraction approach for seamless multi-chain experience.

Junior 2 requirements

Blockchain Developer

Creates basic dApps with wallet connection and reading data from blockchain. Uses wagmi/viem for wallet interaction and React for frontend. Tests on testnet.
Smart Contract Developer

Develops the frontend part of dApps for contract interaction: wallet connection, calling view/write functions, tracking transaction status. Uses wagmi and React.

Middle 2 requirements

Blockchain Developer

Develops full-featured dApps with transaction signing, event listening, and optimistic UI. Integrates ENS, IPFS metadata, and The Graph subgraph for data indexing.
Smart Contract Developer

Develops full-featured DeFi dApps: multicall for batch reads, event-driven UI updates, error handling for reverted transactions. Integrates contract ABIs automatically.

Senior 2 requirements

Blockchain Developer

Designs dApp ecosystem architecture: frontend, indexer, relayer, API gateway. Implements gasless transactions via Account Abstraction (EIP-4337). Optimizes UX for mass adoption.
Smart Contract Developer

Designs dApp architecture for complex smart contract systems: multi-contract interaction flows, gasless transactions via relayers, offline-first with on-chain settlement.

Lead / Staff 2 requirements

Blockchain Developer

Defines dApp development standards for the organization. Establishes Web3 UI kit and shared infrastructure: indexers, relayers, monitoring. Coordinates architecture for 5+ dApp products.
Smart Contract Developer

Defines dApp development standards for the organization. Establishes shared UI components for contract interactions. Coordinates frontend-contract integration architecture.

Principal 2 requirements

Blockchain Developer

Shapes enterprise dApp platform development strategy. Defines UX approaches for mass Web3 adoption: chain abstraction, social login, gasless experience. Publishes architectural patterns.
Smart Contract Developer

Defines enterprise dApp platform strategy. Shapes UX patterns for complex DeFi interactions. Defines chain abstraction approach for seamless multi-chain experience.

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