Senior Solidity & Ethereum Engineer

Capgemini is a global business and technology transformation partner, powered by AI and delivering tangible business value to organizations around the world. It employs more than 420,000 people in over 50 countries and reported global revenues of €22.5 billion in 2025. Capgemini delivers end-to-end services and solutions, from strategy and design to engineering and operations, drawing on deep industry expertise and a broad partner ecosystem.

• Strong, proven experience with Solidity and Ethereum development.
• Hands-on knowledge of private Ethereum network optimization.
• Practical experience with Azure Cloud services and Azure DevOps pipelines.
• Excellent problem-solving skills and ability to work effectively in a collaborative environment.
• Strong understanding of blockchain fundamentals, smart contract security, and Ethereum tooling.
• Fluent in English.
• Committed and able to work in a team, with willingness to develop and learn.

Preferred Qualifications:

• Experience with Hyperledger FireFly or similar blockchain orchestration frameworks.
• Background or interest in finance, fintech, or decentralized financial systems.
• Familiarity with enterprise-grade cloud deployment, monitoring, and automation.

• Design, develop, and optimize Solidity smart contracts for private Ethereum networks.
• Tune and optimize Ethereum node configurations for performance, efficiency, and reliability.
• Build and maintain CI/CD pipelines using Azure DevOps.
• Work with Azure Cloud infrastructure to deploy, manage, and monitor blockchain components.
• Collaborate with cross-functional teams to solve complex engineering problems and deliver high-quality solutions.
• Contribute to architectural decisions and best practices for secure, scalable blockchain systems.

Optional/Preferred:

• Integrate or develop components using Hyperledger FireFly.

Capgemini is committed to diversity and inclusion, ensuring fairness in all employment practices. They assess people based on qualifications and performance, not personal characteristics, striving to create a workplace where everyone can succeed and feel valued.