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# Senior Software Engineer - Barcelona

- **Company:** Moody’s
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Artificial Intelligence, Amazon Web Services, Amazon S3, Cloud Engineering, Code Review, Command-Query Responsibility Segregation (Software Development), Software Design Patterns, Digital Content, Amazon DynamoDB, Python (Programming Language), PostgreSQL, MongoDB, Node.Js, TypeScript, ReactJS, Generative AI, Cloudformation, Fastapi, Event Driven Architecture, Functional Programming, Serverless Computing, Microservices
- **Published:** September 19, 2026
- **Apply:** https://www.buscojobs.com.es/senior-software-engineer-barcelona-en-barcelona-ID-372162015

## About the Role

Requisitos principales5+ years of web software development with full web lifecycle
5+ years in Python or TypeScript with frameworks like FastAPI or Node.js
Experience with PostgreSQL and MongoDB
Experience with micro-services and/or event-driven architectures in cloud serverless environments
Strong knowledge of design patterns, SOLID, CQRS and Hexagonal Architecture
Obsessed with clean code and agile engineering practices
Self-driven, collaborative, and innovative team player
Knowledge of AI frameworks and tools (advantageous)
Experience with high volumes of data (advantageous)
Experience with AWS ecosystem (CloudFormation, ECS, Lambda, S3, DynamoDB)
collaboration
curiosity
adaptability, Python

## Description

OverviewAs a Senior Web Software Engineer, you will build and evolve serverless, cloud-native microservices using Python or TypeScript and React.You'll integrate GenAI capabilities into cutting-edge AI-enabled risk platforms and collaborate across cross-functional teams to deliver scalable solutions.You will help shape Moody's Digital Content & Innovations Engineering by driving clean code, solid design, and practical architectures.This role offers the chance to impact how clients navigate risk with confidence at scale.You'll work in a collaborative, innovative environment that values curiosity and integrity.ResponsabilidadesBuild serverless microservices with TypeScript, Python and React, ensuring integration with AI systemsCollaborate on integration of GenAI solutions across front-end and back-end layersWork with cross-functional teams to design, develop, and deploy innovative solutionsTackle complex problems using cutting-edge technologiesLead code reviews, workshops, and create documentation to support teammatesArchitect, develop, and maintain cloud-native content delivery solutionsRequisitos principales5+ years of web software development with full web lifecycle5+ years in Python or TypeScript with frameworks like FastAPI or Node.jsExperience with PostgreSQL and MongoDBExperience with micro-services and/or event-driven architectures in cloud serverless environmentsStrong knowledge of design patterns, SOLID, CQRS and Hexagonal ArchitectureObsessed with clean code and agile engineering practicesSelf-driven, collaborative, and innovative team playerKnowledge of AI frameworks and tools (advantageous)Experience with high volumes of data (advantageous)Experience with AWS ecosystem (CloudFormation, ECS, Lambda, S3, DynamoDB)collaborationcuriosityadaptabilityPythonTypeScriptFastAPI


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