Moody's Corporation is seeking a Staff Software Engineer to build the technology infrastructure that powers financial decision-making for banks, lenders, and institutional investors worldwide. You will design and implement scalable serverless solutions, influence cross-team architecture, and own the full development lifecycle in a modern TypeScript ecosystem.

What You'll Do

Design and implement scalable serverless solutions leveraging AWS Lambda, ECS, and event-driven architectures to handle unpredictable traffic spikes.
Influence cross-team architecture and standards across 40+ squads, balancing autonomy with platform consistency and managing complex dependencies.
Own the full development lifecycle—from ideation and design through implementation, testing, deployment, and monitoring in production.
Solve ambiguous and complex problems, including unclear requirements, evolving business needs, and production incidents—going beyond ticket-based work to define what needs to be built.
Collaborate extensively with product managers, designers, data engineers, and other developers to align on technical and business solutions.
Ensure high-quality code and maintainability through best practices in testing, code reviews, and continuous integration/deployment.
Contribute to architectural decisions that optimize for scalability, reliability, and cost efficiency in a cloud-native environment.
Deliver full-stack features across a modern TypeScript ecosystem (React + Module Federation frontend, NodeJS serverless backend) serving millions of users.
Champion performance and security standards, ensuring robust solutions for sensitive financial data.
Stay proactive in knowledge sharing, mentoring peers, and contributing to documentation and internal tooling improvements.
Adapt quickly to changing priorities, new technologies, and evolving business requirements in a fast-paced environment.

What We're Looking For

Proven experience shipping production software (minimum 7 years, end-to-end feature ownership).
Strong proficiency in TypeScript for both frontend and backend development.
Experience building responsive web applications using modern React patterns.
Comfortable working across the stack: UI components, API design, and database queries.
Knowledge of serverless architectures (AWS Lambda, ECS, or equivalent).
Comfortable collaborating in a cross-functional environment.
Curiosity about emerging technologies (AI, infrastructure, developer tools).
Strong problem-solving mindset; ability to turn vague requirements into working solutions.
Exposure to search platforms (OpenSearch, Elasticsearch) or ETL pipelines.
Familiarity with AWS services or equivalent cloud platforms.
Experience with SQL (Postgres) and NoSQL (DynamoDB, DocumentDB) databases.
Experience building .NET Framework ASP.NET websites.

Nice to Have

Ability to evaluate trade-offs between data models and query patterns.
Exposure to search platforms (OpenSearch, Elasticsearch) or ETL pipelines.
Familiarity with CI/CD practices and tools (Git, Docker, Jira; Terraform is a plus).
Understanding of event-driven systems, asynchronous processing, and distributed architectures.
Experience with serverless architectures (Lambda, ECS, or equivalent).

Technical Stack

Languages & Frameworks: TypeScript, React, NodeJS, .NET Framework, ASP.NET
Cloud & Serverless: AWS Lambda, ECS
Databases: Postgres, DynamoDB, DocumentDB
Search & Data: OpenSearch, Elasticsearch
Tools: Git, Docker, Jira, Terraform

Team & Environment

You'll be part of the innovation engine within Moody's Analytics, operating with startup autonomy but enterprise distribution. The organization includes 40+ squads and 8 dedicated GenAI teams.

Work Mode

This is a local role based in our Brussels - Avenue Louise 250 office.

Moody’s is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, sexual orientation, gender expression, gender identity or any other characteristic protected by law.