CareerPlan

Blockchain Developer

UruguayRemoteFull-time2026-10-19 → 2026-11-10
Remote · from Canada

Core

Design, develop, and audit smart contracts on Ethereum and integrate blockchain solutions with backends to build secure and scalable decentralized applications.

Role type

Senior IC blockchain engineer (smart contracts & Web3)

Builds

Decentralized applications (dApps) and blockchain integrations

Domain

Web3, Blockchain, DeFi

Deliverable

production ML models | product features

Required skills

Smart contract development (Solidity), Web3 protocols, zk-SNARKs implementation, Backend integration (Java/TypeScript/Python/Go), Smart contract security and testing

Preferred skills

Privacy technologies (zk-Rollups), Exchange/Wallet/DeFi platform experience

Technologies

Ethereum, Solidity, Web3.js, Ethers.js, Java, TypeScript, Python, Go, Git, REST/GraphQL APIs

Responsibilities

Design, develop, and audit smart contracts on Ethereum; Integrate blockchain solutions with backends in multiple languages; Collaborate with backend and frontend teams to deliver complete applications; Implement and optimize functionalities using zk-SNARKs for privacy and security; Contribute to dApp architecture and scalability