Job Summary: We are seeking a Senior Python Software Engineer for a high-performing technical team, who will contribute to the development, deployment, and evolution of scalable solutions. Key Highlights: 1. Design of modern microservice-based architectures 2. Participation in innovative projects with AI components 3. Contribution to the development and evolution of scalable solutions Excelia is a multinational firm specializing in Consulting, Technology, and Professional Services, with over 20 years of experience. We operate in more than 50 countries across Europe, Latin America, and the United States from our 10 owned offices. Senior Python Software Engineer – Microservices, Cloud & GenAI Are you interested in designing modern microservice-based architectures? Do you have experience developing with Python and FastAPI, and would you like to participate in innovative projects with AI components? At Excelia, we are looking for a Senior Python Software Engineer to join a high-performing technical team, where you will contribute to the development, deployment, and evolution of scalable production solutions. What profile are we looking for? * +2 years of professional experience as a Software Engineer. * Proficiency in Python and experience building microservices with FastAPI. * Experience designing APIs using OpenAPI and inter-service communication via REST and gRPC. * Experience with containerization using Docker and orchestration using Docker Compose. * Experience deploying on Kubernetes (pods, deployments, services, configmaps, secrets). * Experience working with modern backend architectures and design patterns. * Experience with CI/CD, version control, automated testing, and code reviews. * Experience monitoring and resolving production incidents. * English proficiency level B2–C1. **Preferred qualifications:** * Experience with GenAI frameworks such as LangChain and LangGraph. * Experience with AWS (S3, EC2, Lambda, API Gateway). * Experience exposing ML/GenAI models as production-ready APIs. * Knowledge of DevOps tools: GitHub Actions, AWS CodePipeline, Terraform, CDK. * Experience collaborating with AI Engineering teams. **Location:** Spain **Work Mode:** Fully Remote What do we offer? Stable employment contract, enabling continued growth alongside us. Competitive salary band aligned with your experience and professional background. Flexible compensation. Continuous training and professional development. Opportunity to participate in innovative projects leveraging cloud technologies, microservices, and AI. Are you interested in this opportunity? If you are motivated to work on modern microservice-based architectures, participate in cloud projects, and develop solutions with AI/GenAI components in production environments, apply now and join Excelia!