Lending Protocol Integration

⬢ ティア 2テクニカル

高い

給与インパクト

3か月

習得までの期間

難しい

難易度

職種数

概要

Lending protocols (Aave, Compound, MakerDAO) let users deposit crypto, earn interest, and borrow against collateral. Developers integrate these protocols via smart contracts and SDKs. Total value locked (TVL) in lending exceeds $30B. Senior developers earn 30-40% premiums. Mastery requires 8-10 weeks of smart contract + DeFi knowledge. Demand concentrated in crypto/finance.

Lending Protocol Integrationとは

Lending protocols are smart contracts that pool crypto assets and enable lending/borrowing. Users deposit collateral, earn interest on deposits, and can borrow against their collateral. The protocol algorithmically adjusts interest rates based on supply/demand. Aave and Compound are the largest; MakerDAO is a stablecoin lender (DAI). Developers integrate these protocols by: calling contract functions (deposit, borrow, repay), listening to events, or building frontend UIs. The goal is leveraging existing liquidity (billions locked) to enable new applications.

🔧 ツール＆エコシステム

Aave ProtocolCompound ProtocolMakerDAOEthers.jsWeb3.jsSolidityThe GraphFrontend libraries

💰 地域別給与

地域	ジュニア	ミドル	シニア
USA	$100k	$170k	$280k
UK	$60k	$105k	$170k
EU	$65k	$115k	$185k
CANADA	$105k	$180k	$300k

🎓 認定資格

Aave Developer Documentation Compound Documentation MakerDAO Governance

🎯 Lending Protocol Integrationを使う職種

Blockchain Developer

❓ よくある質問

What's the difference between Aave and Compound?

Both are lending protocols. Aave: larger, more assets, supports flash loans (uncollateralized borrowing). Compound: first lending protocol, simpler, lower TVL. Both have interest rates determined by supply/demand. Choose based on assets you want to lend/borrow.

What's a flash loan?

Aave feature: borrow any amount without collateral, must return it in same transaction. Used for arbitrage, liquidations, self-liquidation. Unique to Aave.

How do interest rates work on lending protocols?

Supply/demand model. High demand to borrow → rates go up. Low demand → rates go down. Users depositing earn interest (supply rate). Users borrowing pay interest (borrow rate). Algorithmic interest rate curves set by governance.

What's overcollateralization?

Borrow $100, must deposit $150 collateral (150% ratio). If collateral value falls below ratio, protocol liquidates to protect lenders. Risk/reward: safer for lenders, more expensive for borrowers.

Can I build a DeFi app on top of Aave?

Yes. Use Aave API (REST) or smart contract integration. Build: a yield farm (deposit to Aave, auto-compound), a leverage trading bot, a savings app. Aave's contracts are extensible.

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