Software Engineer - .NET & AI-Driven Risk Platform

Moody's Corporation; Brussel Hoofdstad; On-site; EUR 60,000 - 90,000; Full time

Job summary

Moody's is seeking a software engineer to evolve high-scale .NET applications that support critical financial decisions for clients worldwide. You will maintain .NET Framework 4.8 and .NET 10 apps, debug production incidents, and implement performance improvements.

Collaboration with product, design, and data teams is essential to deliver robust features. The ideal candidate has 2+ years shipping production software, strong C#, ASP.NET MVC/Web API, React, SQL, and CI/CD experience, plus a

Qualifications

• Proven experience shipping production software (2+ years).
• Strong proficiency in C# including async/await, LINQ, generics, dependency injection, and modern language features.
• Experience with ASP.NET MVC and Web API on .NET Framework 4.8.
• Working knowledge of modern .NET (.NET 10) and ASP.NET Core MVC.
• Experience building web applications using HTML5, CSS3, and JavaScript.
• Experience with and understanding of existing codebases, including debugging and production troubleshooting.
• Ability to write clean, testable code, with unit testing frameworks such as xUnit, NUnit, or MSTest.
• Proficiency with Git, Visual Studio, and NuGet.
• Strong collaboration in cross-functional teams.
• Experience with React and TypeScript.
• Basic knowledge of SQL and EF / EF Core.
• Exposure to .NET Framework to .NET migration projects.
• Familiarity with CI/CD tools such as GitHub Actions and Jenkins.
• Curiosity about emerging technologies, including AI and modern developer tools.
• Proven ability to implement AI-powered solutions and manage AI risk ethically.

Responsibilities

• Contribute to the ongoing success of Orbis by enhancing, maintaining, and evolving high-scale .NET applications that support critical financial decision-making for thousands of clients worldwide.
• Maintain and support existing .NET Framework 4.8 and .NET 10 applications, ensuring stability, reliability, and performance in production.
• Investigate, troubleshoot, and resolve bugs and production incidents by analyzing application behavior, logs, and code.
• Identify and implement performance optimizations and code quality improvements across existing applications.
• Design and deliver new features and enhancements aligned with architecture, standards, and business needs.
• Collaborate with product, design, and data teams to define and deliver technical solutions.
• Ensure high-quality, maintainable code through testing, code reviews, and CI practices.
• Contribute to technical documentation and share knowledge to support team effectiveness.

Skills

C#

ASP.NET

ASP.NET MVC

Web API

NET Framework 4.8

React

TypeScript

SQL

Entity Framework / EF Core

Git

Visual Studio

CI/CD

GitHub Actions

Jenkins

Unit testing (xUnit/NUnit/MSTest)

Education

Strong technical foundation

Tools

Git

Visual Studio

NuGet

GitHub Actions

Jenkins

Job description

Moody's is seeking a software engineer to evolve high-scale .NET applications that support critical financial decisions for clients worldwide. You will maintain .NET Framework 4.8 and .NET 10 apps, debug production incidents, and implement performance improvements.

Collaboration with product, design, and data teams is essential to deliver robust features. The ideal candidate has 2+ years shipping production software, strong C#, ASP.NET MVC/Web API, React, SQL, and CI/CD experience, plus a