DeFi Engineer (Smart Contracts & Protocols)

Full-time or contract

,

Europe

What you’ll work on

  • Design and implement production-grade smart contracts for onchain lending, leverage, and execution primitives

  • Integrate and abstract lending protocols across multiple chains into a unified execution layer

  • Build and maintain safety checks that prevent unsafe states (e.g. liquidations, invalid positions)

  • Collaborate closely with backend and API engineers on end-to-end execution flows

  • Review protocol changes and assess integration risk as ecosystems evolve

What we’re looking for

  • Strong experience with Solidity and EVM-based systems

  • Deep understanding of DeFi primitives: lending, liquidation mechanics, interest rate models

  • Experience shipping and maintaining contracts in production environments

  • Strong intuition for risk, edge cases, and failure modes

  • Ability to reason about systems holistically, not just individual contracts

Nice to have

  • Experience with Aave, Compound, Morpho, or similar lending protocols

  • Familiarity with transaction simulation, fork testing, and invariant-based testing

  • Contributions to open-source DeFi projects


Apply now

1delta Labs AG
Dammstrasse 16
6300 Zug
Switzerland

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© 2026 1delta Labs AG

1delta Labs AG is a Swiss-registered company (UID: CHE-290.733.046). 1delta Labs AG provides non-custodial software, APIs, and technical infrastructure for interacting with decentralized protocols and does not operate as a bank, broker, custodian, or financial intermediary. The company is not licensed or supervised by the Swiss Financial Market Supervisory Authority (FINMA) or any other financial regulator.

Nothing on this website constitutes financial, investment, legal, or tax advice. Use of decentralized finance protocols involves significant risk, including the potential loss of funds. Users are solely responsible for assessing the legal, regulatory, and risk implications applicable in their jurisdiction.

1delta Labs AG
Dammstrasse 16
6300 Zug
Switzerland

Telegram

© 2026 1delta Labs AG

1delta Labs AG is a Swiss-registered company (UID: CHE-290.733.046). 1delta Labs AG provides non-custodial software, APIs, and technical infrastructure for interacting with decentralized protocols and does not operate as a bank, broker, custodian, or financial intermediary. The company is not licensed or supervised by the Swiss Financial Market Supervisory Authority (FINMA) or any other financial regulator.

Nothing on this website constitutes financial, investment, legal, or tax advice. Use of decentralized finance protocols involves significant risk, including the potential loss of funds. Users are solely responsible for assessing the legal, regulatory, and risk implications applicable in their jurisdiction.

1delta Labs AG
Dammstrasse 16
6300 Zug
Switzerland

Telegram

© 2026 1delta Labs AG

1delta Labs AG is a Swiss-registered company (UID: CHE-290.733.046). 1delta Labs AG provides non-custodial software, APIs, and technical infrastructure for interacting with decentralized protocols and does not operate as a bank, broker, custodian, or financial intermediary. The company is not licensed or supervised by the Swiss Financial Market Supervisory Authority (FINMA) or any other financial regulator.

Nothing on this website constitutes financial, investment, legal, or tax advice. Use of decentralized finance protocols involves significant risk, including the potential loss of funds. Users are solely responsible for assessing the legal, regulatory, and risk implications applicable in their jurisdiction.