Senior Python Developers (She/He/They) (Madrid)

Join a global tech leader and work with cloud-native technologies! At NTT DATA, we are looking for a Senior Python Developer to join an international team working on scalable cloud-native solutions and modern backend architectures.You will collaborate with multidisciplinary teams to design, develop and maintain high-performance backend systems, working with cloud technologies, data platforms and AI-driven development environments while contributing to high-quality software delivery. Your responsibilitiesDevelop and maintain backend systems and microservices using PythonDesign and build scalable REST APIs and integrate third-party servicesWork with AWS cloud services and cloud-native architecturesOptimize application performance, reliability and maintainabilityCollaborate with international teams in English-speaking environmentsParticipate in CI/CD processes, deployment pipelines and infrastructure improvementsSupport and evolve enterprise applications in production environmentsApply best practices in software development, testing and code qualityTechnical requirements Python & Backend DevelopmentHave to:Strong experience developing backend systems and microservices with PythonExperience designing and maintaining REST APIsKnowledge of scalable and maintainable software architecturesExperience implementing business logic and integrating external servicesDesirable:Experience working in distributed systems and event-driven architecturesKnowledge of FastAPI, Flask or Django frameworks Cloud & AWSHave to:Experience deploying and maintaining cloud infrastructure on AWSKnowledge of ECS services, Lambda and RDSExperience monitoring and managing cloud environmentsDesirable:Experience with DynamoDB, Kinesis and GlueKnowledge of infrastructure automation and cloud optimization practices Databases & Data PlatformsHave to:Strong SQL knowledge and experience with PostgreSQLExperience working with MongoDBAbility to optimize database performance and design schemasDesirable:Experience with Snowflake and cloud data warehousing solutionsKnowledge of analytics and reporting workflows with large-scale datasets Docker / Linux / CI-CDHave to:Experience with Docker and containerized environmentsGood Linux administration and troubleshooting skillsExperience with Git, GitLab and CI/CD pipelinesDesirable:Experience automating testing and release processesKnowledge of deployment and infrastructure support practices Cloud Architecture & AMSDesirable:Experience designing scalable backend infrastructuresKnowledge of Application Management Services environmentsExperience supporting and improving enterprise applications in production Generative AIExperience working with Generative AI technologies and tools, integrating AI capabilities into development workflows or applicationsFamiliarity with AI-assisted coding environments and developer productivity toolsExperience with Claude Code, GitHub Copilot or similar AI coding assistants is a strong plus What we are looking forSeveral years of experience as a Python DeveloperEnglish level B2 or higherLocation: Barcelona or Madrid Soft skillsStrong teamwork and communication skillsProblem-solving mindset and analytical thinkingAbility to work independently and proactivelyAdaptability and continuous learning mindset Why join NTT DATA?Work on international and innovative projectsBe part of a global technology consulting leaderContinuous learning and career growth opportunitiesCollaborative and diverse environment Interested? Apply now and become part of NTT DATA’s integral technology community. Postúlate en Kit Empleo: kitempleo.es/empleo/6u0wut