Job Summary: We are seeking a Mid-level Python Developer to join a team in the banking sector, designing and implementing backend components and APIs with Python to integrate generative models. Key Highlights: 1. Participate in an innovative project in the banking sector with generative AI. 2. Collaborate with data and ML teams to optimize and scale solutions. 3. Join a team that values well-crafted backend development and rapid learning. Madrid Mid Python Developer Mid Python Developer Choosing Capgemini means choosing the opportunity to shape your professional career as you wish. You will receive support and inspiration from a collaborative community of colleagues worldwide and be able to reinvent what is possible. Join our team and help leading global organizations discover the value of technology and build a more sustainable and inclusive world. **About the Role** Are you eager to join the team and participate in a banking-sector project within a team of 5 to 8 people, composed primarily of developers, along with Scrum and QA roles? What will you do on the project? You will design and implement backend components with Python and APIs to integrate generative models into production. You will collaborate with data and ML teams to optimize performance and scale GenAI solutions. You will maintain good documentation practices and stay up to date with advances in generative AI. If you appreciate well-crafted backend development (SOLID, clean code, testing) and are motivated by fast learning, we want to meet you. You will join a team building APIs and microservices in Python and, depending on the project, integrating generative AI capabilities. **Your Responsibilities:** * Design and develop APIs with Python (FastAPI/Flask) * Write maintainable code following best practices and including tests * Containerization with Docker and CI/CD * (Optional) Integrate LLMs / RAG / LangChain into production solutions **Must-have** * Python 3.x, REST APIs, SOLID, Git * Docker, databases (SQL/NoSQL) * Cloud (AWS or others) at a practical level **Plus (not mandatory)** * LLMs, LangChain/LlamaIndex, vector stores, RAG We value all applications. We offer a wide range of training opportunities—both in-person and online—including certifications. Even if you don’t meet 100% of the required skills, we’d love to meet you! Holding a disability certificate will be positively considered under our inclusion and diversity policy. We value all applications. We offer a wide range of training opportunities—both in-person and online—including certifications. Even if you don’t meet 100% of the required skills, we’d love to meet you! Holding a disability certificate will be positively considered under our inclusion and diversity policy. Our commitment to inclusion and equal opportunity is reflected in our Equality Plan and Code of Ethics, which guarantee professional development for our employees and equal opportunity in hiring within a discrimination-free environment—regardless of ethnicity, nationality, social origin, age, sexual orientation, gender expression, religion, or any other personal, physical, or social circumstance. **We offer a comprehensive portfolio of Development and Work-Life Balance initiatives, such as:** * 24 vacation days + 2 personal days + December 24 and 31 + option to purchase up to 7 additional vacation days per year. * FlexAbroad: possibility to work remotely from another country for up to 45 days. * Flexible Compensation Plan (health insurance, transportation, training, meal card or food allowance, childcare…) * Continuous learning: access to MyLearning and Capgemini University, as well as our Digital Campuses and Professional Communities. You’ll also have access to platforms such as Coursera, Udemy, Pluralsight, Harvard Manager Mentor, and Education First for language learning (English, French, German…), among others! * Participation in Volunteering and Social Action initiatives through our Sustainability, Inclusion, and Equality Groups. **Why Capgemini?** Capgemini is a global leader in helping clients transform their businesses by harnessing the full power of technology. Our purpose is to achieve an inclusive and sustainable future through technology and the energy of those who build it. We are a responsible and diverse company, an international leader in IT and Engineering services, with over 360,000 professionals across more than 50 countries. With a strong 55-year heritage and deep industry expertise, clients trust Capgemini to address their full business needs—from strategy and design to operations—powered by the fast-evolving worlds of cloud, data, AI, connectivity, software, platforms, and digital engineering. The Group reported global revenues of €22 billion in 2022. #LI-CM1 **Rewrite your future. Join the team!** https://www.capgemini.com/es-es Capgemini is a global leader supporting enterprises in transforming and managing their business by leveraging the power of technology. Capgemini - Get the future you want - Capgemini Spain Capgemini is a global leader supporting enterprises in transforming and managing their business by leveraging the power of technology. Ref. code 395313-es_ES Posted on 22 Jan 2026 Experience level Experienced professionals Contract type Permanent Location Madrid Business unit ABL Southern Central Europe Brand Capgemini Professional communities Software Engineering