Domain
Blockchain & Web3
Skill Profile
This skill defines expectations across roles and levels.
Roles
2
where this skill appears
Levels
5
structured growth path
Mandatory requirements
0
the other 10 optional
Blockchain & Web3
Blockchain Fundamentals
2/22/2026
Choose your current level and compare expectations. The items below show what to cover to advance to the next level.
The table shows how skill depth grows from Junior to Principal. Click a row to see details.
| Role | Required | Description |
|---|---|---|
| Blockchain Developer | Understands Merkle tree structure and its role in blockchain: transaction verification, state proof. Implements simple Merkle tree for data hashing and proof generation/verification. | |
| Smart Contract Developer | Understands Merkle trees and their application in smart contracts: whitelist verification, airdrop claims, data integrity proofs. Implements Merkle proof verification in Solidity via OpenZeppelin. |
| Role | Required | Description |
|---|---|---|
| Blockchain Developer | Implements various Merkle tree types for blockchain: Patricia Merkle Trie for state storage, sparse Merkle tree for membership proofs. Optimizes proof generation and verification. | |
| Smart Contract Developer | Implements advanced Merkle proof patterns: multi-proof verification, incremental Merkle trees for on-chain accumulation. Optimizes proof verification gas cost through calldata optimization. |
| Role | Required | Description |
|---|---|---|
| Blockchain Developer | Designs Merkle tree infrastructure for blockchain node: incremental updates, parallel proof generation, compact proofs. Researches verkle trees and polynomial commitments as Merkle replacement. | |
| Smart Contract Developer | Designs Merkle-based protocols: cross-chain state proof verification, storage proof validation, receipt proofs. Implements custom Merkle tree variants for specific smart contract use cases. |
| Role | Required | Description |
|---|---|---|
| Blockchain Developer | Defines Merkle tree usage standards in the blockchain organization. Establishes guidelines for proof generation, verification, and storage. Evaluates transition to verkle trees. | |
| Smart Contract Developer | Defines Merkle proof standards for smart contract organizations. Establishes guidelines for proof generation infrastructure and on-chain verification optimization. |
| Role | Required | Description |
|---|---|---|
| Blockchain Developer | Researches advanced tree commitments for blockchain systems: verkle trees, vector commitments, accumulator schemes. Publishes research and contributes to state commitment layer protocol updates. | |
| Smart Contract Developer | Researches advanced commitment schemes for smart contracts: verkle proofs, polynomial commitments. Publishes research on on-chain proof verification optimization and new proof patterns. |