Smart Contract Engineer

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Senior Smart Contract Engineer for Nexus Project developing secure and scalable smart contracts based on blockchain technology and Solidity expertise.

Posted 5/15/2026full-timeRemote • 🇨🇭 SwitzerlandMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

SolidityWeb3

About the role

Key responsibilities & impact

Design, develop, and audit secure and efficient smart contracts using Solidity
Implement best practices for smart contract security, including unit testing, code reviews, and vulnerability assessments
Automate smart contract deployment, testing, and ongoing maintenance
Stay up-to-date with the latest advancements in blockchain technology, Ethereum Virtual Machine (EVM) concepts, and layer 2 scaling solutions

Requirements

What you’ll need

Bachelor’s in Computer Science or a related field
Deep understanding of blockchain technology and consensus mechanisms
Proven track record of shipping secure and well-tested smart contracts on Ethereum or compatible blockchains
Expert-level knowledge of Solidity language features, best practices, and security considerations
Strong problem-solving and analytical skills with a passion for innovation and building impactful decentralized applications
Advanced degree in a technical field (bonus points)
Familiarity with formal verification tools for smart contracts (bonus points)
Experience with layer 2 scaling solutions (i.e. Optimism, Polygon) (bonus points)
Contributions to open-source smart contract libraries or frameworks (bonus points)
Strong understanding of web3 development tools and frameworks (bonus points)

Benefits

Comp & perks

Competitive salary and equity compensation
Dynamic startup culture where creativity is highly encouraged
Opportunity to join a talented team at the forefront of the next generation of computing

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Soliditysmart contractsunit testingcode reviewsvulnerability assessmentsblockchain technologyconsensus mechanismslayer 2 scaling solutionsformal verification toolsweb3 development

Soft Skills

problem-solvinganalytical skillsinnovationbuilding decentralized applications

Certifications

Bachelor’s in Computer Scienceadvanced degree in a technical field