Senior Full Stack Software Engineer (Node.js / React)

About the role

Moody's, a global leader in ratings and integrated risk assessment, is hiring a Senior Full Stack Software Engineer (Node.js / React) in Brussels, Belgium. The engineer builds and maintains scalable, cloud-native platforms that support data-driven financial decision-making for global clients, using serverless and event-driven architectures.

Key responsibilities

• Design and deliver scalable, cloud-native software supporting critical financial data platforms
• Implement serverless and event-driven solutions
• Own the full software development lifecycle, from design and development to testing, deployment and monitoring
• Work with product managers, designers and engineers to deliver technical solutions aligned with business needs
• Contribute to system architecture decisions and technical standards, and manage dependencies across teams
• Ensure code quality, maintainability and security through testing, reviews and engineering standards
• Share knowledge, mentor colleagues and improve engineering practices and tooling

Required profile

• Proven experience delivering production-grade software with end-to-end ownership in complex environments
• Strong backend experience with Node.js, including scalable APIs, services and application logic
• Frontend experience with React, TypeScript or JavaScript
• Cloud-native and serverless experience on AWS or equivalent
• Understanding of software engineering best practices: testing, code quality, CI/CD
• Experience with relational and non-relational databases such as PostgreSQL and NoSQL
• Ability to work in cross-functional teams and turn ambiguous requirements into scalable solutions
• Demonstrated proficiency in AI concepts and use of AI tools to improve workflows
• Undergraduate degree in Computer Science, Software Engineering or a related field, or equivalent practical experience; advanced degree preferred but not required