Senior Python Developer

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today and tomorrow. Informed and validated by science and data. Superpowered by creativity and design. All underpinned by technology created with purpose.Your RoleWe are seeking a seasoned Senior Python Developer with 8 to 12 years of hands-on experience building robust, scalable backend services and distributed systems. In this role, you will lead the architecture, design, and implementation of high-performance APIs, data pipelines, and microservices. You will collaborate closely with cross-functional engineering teams in an Agile environment, driving technical excellence from initial design through deployment and observability.Architecture & Development: Design, build, and maintain scalable, secure backend services and microservices using Python.API Engineering: Architect and implement high-performance RESTful APIs and GraphQL schemas, integrating external third-party services and downstream systems using JSON-based payloads.Database Design & Management: Model, optimize, and manage NoSQL databases (primarily MongoDB) as well as relational databases (e.g., PostgreSQL, MSSQL) for query performance and data integrity.System Administration & Tooling: Develop, deploy, and debug applications directly in Linux/Unix environments.Code Quality & Mentorship: Drive clean architecture, comprehensive unit/integration testing, and code reviews across Git-based workflows.Cross-Functional Collaboration: Partner with product managers, QA, and DevOps engineers within an Agile/Scrum framework to deliver sprint commitments predictably.Your Profile8–12 years of professional software engineering experience primarily using Python. Deep practical experience with core Python web frameworks such as FastAPI, Django, or FlaskDemonstrated expertise in designing, securing, and documenting RESTful APIsPractical experience implementing and consuming GraphQL APIs.Advanced proficiency in handling complex JSON parsing, data serialization, and API integrations.Strong hands-on experience with MongoDB (aggregation framework, indexing, schema design).Solid working knowledge of relational databases (e.g., PostgreSQL, MySQL) alongside ORM/ODM libraries (e.g., SQLAlchemy, MongoEngine, Beanie).Comfortable operating, scripting, and troubleshooting in Linux environments.Advanced proficiency with Git workflows (branching strategies, PR reviews, conflict resolution.What you will love about working hereWe recognize the significance of flexible work arrangements to provide support. Be it remote work, or flexible work hours, you will get an environment to maintain healthy work life balance. At the heart of our mission is your career growth. Our array of career growth programs and diverse professions are crafted to support you in exploring a world of opportunities. Equip yourself with valuable certifications in the latest technologies such as Generative AI. Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.