Expleo offers a unique portfolio of integrated engineering, quality, and strategic consulting services for digital transformation. In a context of unprecedented technological acceleration, we are the trusted partner of companies that innovate. We help them build competitive advantage and improve the daily lives of millions of people. Joining Expleo Switzerland means becoming part of a global community of 19,000 employees across 30 countries, with a turnover of €1.4 billion in 2024. It also means: Receiving both technical and human support on every project, with strong career follow-up. Accessing training programs to continuously develop your professional skills. Participating in dedicated special events. Joining a dynamic and collaborative team We are seeking an experienced Python Developer with a minimum of 8 years of professional experience to join our team in Zurich area. This role is ideal for a true Python guru who thrives on solving complex problems and writing clean, efficient code. Design, develop, and maintain robust Python applications. Collaborate with cross-functional teams to deliver scalable solutions. Optimize code for performance, reliability, and maintainability. Contribute to architectural decisions and technical strategy. Mentor junior developers and share best practices. Minimum 8 years of professional Python development experience. Proven expertise in Python (deep knowledge of libraries, frameworks, and best practices). Experience in trading, energy supply, or related industries is mandatory. Strong problem-solving skills and ability to work independently. Fluent in English ; German proficiency is a strong advantage. Only applications from Swiss and EU citizens will be considered.