Skill Profile

DApp Development

Decentralized application (dApp) development: connecting smart contracts to a frontend via Web3 libraries. Used when building products on Ethereum and compatible networks.

Blockchain & Web3 Web3 Development

Roles

where this skill appears

Levels

structured growth path

Mandatory requirements

the other 0 optional

Domain

Blockchain & Web3

Group

Web3 Development

Last updated

9/9/2026

How to Use

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

Role	Required	Description
Blockchain Developer	Required	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	Required	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
Required

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
Required

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
Required

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
Required

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
Required

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
Required

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
Required

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
Required

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

Principal 2 requirements

Blockchain Developer
Required

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
Required

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