Job Description We are looking for an experienced Senior Fullstack Consultant (Python/React) to join a team responsible for the development and evolution of a critical information system. You will work at the heart of key business processes. Responsibilities Within a multidisciplinary team (Product Owner, business analysts, developers, business users), you will be involved in the full development lifecycle: Analyze functional requirements and understand business models within the energy domain Design and develop robust, scalable, and high-performance solutions Develop and maintain modules for contract management, transactions, meter readings, forecasting, pricing, tradefeed, P&L, and risk management Implement software quality best practices (design patterns, SOLID principles, testing, code review) Develop and optimize APIs and microservices in Python (Flask, FastAPI) Design, manage, and optimize databases (Postgres, SQL Server, AWS Athena) Build modern web interfaces using React, TypeScript, HTML/CSS Process and leverage large datasets (Pandas, NumPy) Contribute to the platform’s performance, stability, security, and scalability Participate in operational support, corrective maintenance, and enhancements Collaborate closely with Cloud & DevOps teams for service deployment and monitoring (Docker, Kubernetes, Azure, AWS S3) Required Skills Backend: Python, microservices, REST APIs Frameworks: Flask, FastAPI Frontend: React, TypeScript, HTML, CSS Data & Databases: Postgres, SQL Server, AWS Athena Data processing: Pandas, NumPy Cloud & DevOps: Azure, AWS S3 Docker, Kubernetes (K8s) CI/CD, Infrastructure as Code (IaC)