Senior Blockchain Developer | Senior Blockchain Developer

LHH

Lausanne, VD, Switzerland
Published Nov 26, 2025
Full-time
Permanent

Job Summary

Join an innovative company specializing in decentralized finance (DeFi) and cutting-edge technological development, creating bespoke solutions for the emerging financial sector. As a Senior Blockchain Developer, you will be crucial in managing the entire lifecycle of DeFi smart contracts, from initial ideation and design through rigorous testing, deployment, and ongoing maintenance. Your day-to-day responsibilities will include designing, developing, and deploying robust smart contracts for the decentralized ecosystem, collaborating closely with product and engineering teams to implement new blockchain features, and ensuring code security through comprehensive unit and fuzzy testing. This role requires a strong technical background, hands-on experience in cryptocurrency and blockchain development, and proven expertise in developing secure Solidity smart contracts. Excellent English communication skills are mandatory, making this an ideal opportunity for international tech professionals passionate about innovating in the DeFi space.

Required Skills

Education

Not specified (Emphasis placed on professional experience)

Experience

  • Several years of hands-on experience in cryptocurrencies and blockchain development.
  • Proven technical expertise in developing, testing, and deploying secure Solidity smart contracts.
  • Overall understanding of DeFi protocols.
  • Leadership experience is a significant advantage.

Languages

English (Fluent)French (Intermediate)

Additional

  • Based in Lausanne, Switzerland, working under a permanent, full-time contract with a hybrid work arrangement. Must possess a strong passion for DeFi and blockchain technologies.