Skill-Profil

Ethereum Ecosystem

Ethereum: EVM, gas model, EIP standards, Beacon Chain, execution clients

Blockchain & Web3 Blockchain Infrastructure

Rollen

wo dieser Skill vorkommt

Stufen

strukturierter Entwicklungspfad

Pflichtanforderungen

die anderen 4 optional

Blockchain & Web3

Blockchain Infrastructure

17.3.2026

Wählen Sie Ihr aktuelles Level und vergleichen Sie die Erwartungen.

Was wird auf jedem Level erwartet

Die Tabelle zeigt, wie die Tiefe von Junior bis Principal wächst.

Rolle	Pflicht	Beschreibung
Blockchain Developer		Understands Ethereum ecosystem fundamentals: EVM architecture, gas model, account types (EOA/contract), and JSON-RPC API. Follows team patterns for interacting with Ethereum nodes using ethers.js/web3.js and deploying to Sepolia/Goerli testnets.
Smart Contract Developer		Understands Ethereum ecosystem from contract development perspective: Solidity compilation, Hardhat/Foundry toolchain, and ERC standards (ERC-20, ERC-721). Follows team patterns for contract development, testing, and verification on Etherscan.

Rolle	Pflicht	Beschreibung
Blockchain Developer		Independently develops with Ethereum Ecosystem in Hardhat/Foundry. Conducts basic audits. Optimizes gas.
Smart Contract Developer		Independently develops with Ethereum Ecosystem in Hardhat/Foundry/OpenZeppelin. Conducts basic audits. Optimizes gas.

Rolle	Pflicht	Beschreibung
Blockchain Developer	Pflicht	Designs Ethereum-based architecture: MEV-aware transaction submission, blob transactions (EIP-4844), and account abstraction (ERC-4337). Conducts security analysis of DeFi protocol integrations and implements custom indexing with subgraphs.
Smart Contract Developer	Pflicht	Designs advanced Ethereum smart contract systems: upgradeable proxies (UUPS/Transparent), diamond pattern (EIP-2535), and gas-optimized assembly (Yul). Conducts formal verification and invariant testing with Foundry. Mentors team on EVM optimization.

Rolle	Pflicht	Beschreibung
Blockchain Developer	Pflicht	Defines Ethereum product architecture: L2 rollup strategy, bridge integration selection, and MEV protection standards. Establishes node infrastructure governance and coordinates team on Ethereum protocol upgrade readiness (hard fork preparation).
Smart Contract Developer	Pflicht	Defines Ethereum smart contract architecture and governance: audit pipeline management, upgrade strategy coordination, and EIP adoption decisions. Establishes Solidity coding standards and security review processes for DeFi protocol development.

Rolle	Pflicht	Beschreibung
Blockchain Developer	Pflicht	Defines organizational Ethereum strategy: mainnet vs L2 allocation, protocol contribution roadmap, and ecosystem partnerships with EF/client teams. Evaluates Ethereum roadmap impact (Verkle trees, sharding) on product architecture.
Smart Contract Developer	Pflicht	Defines organizational Ethereum smart contract strategy: protocol standardization, cross-L2 deployment frameworks, and DeFi composability patterns. Shapes enterprise vision for Ethereum-native product development and contributes to EIP governance.

Junior 2 Anforderungen

Blockchain Developer

Understands Ethereum ecosystem fundamentals: EVM architecture, gas model, account types (EOA/contract), and JSON-RPC API. Follows team patterns for interacting with Ethereum nodes using ethers.js/web3.js and deploying to Sepolia/Goerli testnets.
Smart Contract Developer

Understands Ethereum ecosystem from contract development perspective: Solidity compilation, Hardhat/Foundry toolchain, and ERC standards (ERC-20, ERC-721). Follows team patterns for contract development, testing, and verification on Etherscan.

Middle 2 Anforderungen

Blockchain Developer

Independently develops with Ethereum Ecosystem in Hardhat/Foundry. Conducts basic audits. Optimizes gas.
Smart Contract Developer

Independently develops with Ethereum Ecosystem in Hardhat/Foundry/OpenZeppelin. Conducts basic audits. Optimizes gas.

Senior 2 Anforderungen

Blockchain Developer
Pflicht

Designs Ethereum-based architecture: MEV-aware transaction submission, blob transactions (EIP-4844), and account abstraction (ERC-4337). Conducts security analysis of DeFi protocol integrations and implements custom indexing with subgraphs.
Smart Contract Developer
Pflicht

Designs advanced Ethereum smart contract systems: upgradeable proxies (UUPS/Transparent), diamond pattern (EIP-2535), and gas-optimized assembly (Yul). Conducts formal verification and invariant testing with Foundry. Mentors team on EVM optimization.

Lead / Staff 2 Anforderungen

Blockchain Developer
Pflicht

Defines Ethereum product architecture: L2 rollup strategy, bridge integration selection, and MEV protection standards. Establishes node infrastructure governance and coordinates team on Ethereum protocol upgrade readiness (hard fork preparation).
Smart Contract Developer
Pflicht

Defines Ethereum smart contract architecture and governance: audit pipeline management, upgrade strategy coordination, and EIP adoption decisions. Establishes Solidity coding standards and security review processes for DeFi protocol development.

Principal 2 Anforderungen

Blockchain Developer
Pflicht

Defines organizational Ethereum strategy: mainnet vs L2 allocation, protocol contribution roadmap, and ecosystem partnerships with EF/client teams. Evaluates Ethereum roadmap impact (Verkle trees, sharding) on product architecture.
Smart Contract Developer
Pflicht

Defines organizational Ethereum smart contract strategy: protocol standardization, cross-L2 deployment frameworks, and DeFi composability patterns. Shapes enterprise vision for Ethereum-native product development and contributes to EIP governance.

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