Blockchain & Smart Contract Engineer (Carballedo)

About the role

We are seeking a Senior Blockchain & Backend Engineer to help maintain and evolve Debita by Neitec, our on-chain asset‑based private credit infrastructure. This role combines production smart contract engineering with backend integration work across Web3 infrastructure, payment rails, custody providers and off‑chain financial systems.

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The ideal candidate has already deployed and maintained smart contracts handling real‑world capital, understands the full lifecycle from testnet to mainnet, and is comfortable building the backend services required to connect on‑chain financial logic with APIs, databases, wallets and settlement flows.

Requirements

• Fluent Spanish is required, as the role involves working closely with Spanish‑speaking teams and stakeholders.
• The candidate must be based in Spain, preferably in Madrid...