Skill Profile

Upgradeable Contracts

This skill defines expectations across roles and levels.

Blockchain & Web3 Smart Contracts

Roles

where this skill appears

Levels

structured growth path

Mandatory requirements

the other 5 optional

Blockchain & Web3

Smart Contracts

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
Smart Contract Developer		Understands upgradeable contract patterns: Transparent Proxy, UUPS Proxy. Deploys upgradeable contracts via OpenZeppelin Upgrades plugin. Knows storage layout restrictions.

Role	Required	Description
Smart Contract Developer		Implements upgrade flows: storage layout validation, initialization functions, access control for upgrades. Tests upgrade paths and storage compatibility. Uses forge-std for testing.

Role	Required	Description
Smart Contract Developer		Designs complex upgradeable systems: Diamond proxy with multiple facets, beacon proxy for factory patterns. Implements emergency upgrade procedures and governance-controlled upgrades.

Role	Required	Description
Smart Contract Developer		Defines upgrade strategy for the organization: when to use proxy vs immutable, governance requirements for upgrades. Establishes upgrade checklist and audit requirements.

Role	Required	Description
Smart Contract Developer		Defines enterprise upgradeable contract strategy. Researches novel upgrade patterns: metamorphic contracts, modular accounts. Publishes upgrade security guidelines and migration best practices.

Junior 1 requirements

Smart Contract Developer

Understands upgradeable contract patterns: Transparent Proxy, UUPS Proxy. Deploys upgradeable contracts via OpenZeppelin Upgrades plugin. Knows storage layout restrictions.

Middle 1 requirements

Smart Contract Developer

Implements upgrade flows: storage layout validation, initialization functions, access control for upgrades. Tests upgrade paths and storage compatibility. Uses forge-std for testing.

Senior 1 requirements

Smart Contract Developer

Designs complex upgradeable systems: Diamond proxy with multiple facets, beacon proxy for factory patterns. Implements emergency upgrade procedures and governance-controlled upgrades.

Lead / Staff 1 requirements

Smart Contract Developer

Defines upgrade strategy for the organization: when to use proxy vs immutable, governance requirements for upgrades. Establishes upgrade checklist and audit requirements.

Principal 1 requirements

Smart Contract Developer

Defines enterprise upgradeable contract strategy. Researches novel upgrade patterns: metamorphic contracts, modular accounts. Publishes upgrade security guidelines and migration best practices.

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