Senior .NET Engineer for AI-Powered Financial Platform

PassFort; Brussel Hoofdstad; On-site; EUR 65,000 - 95,000; Full time

Job summary

Moody’s is seeking a senior .NET engineer to join the Orbis platform team. You will own production-grade services across .NET Framework and .NET Core, drive performance improvements, and lead complex issue resolution across large-scale financial data systems.

You’ll design robust architectures, implement AI-enabled workflows, and mentor engineers to uphold high standards. You’ll collaborate with product, design, and data teams to deliver scalable, secure solutions that power Moody’s analytics

Qualifications

• 5+ years delivering production-grade software in full-stack environments.
• Strong command of C# development with ASP.NET MVC, Web API and ASP.NET Core.
• Experience designing software architectures using SOLID, layered and clean architecture principles.

Responsibilities

• Own technical health of .NET Framework 4.8 and .NET 10 apps, ensuring stability, security, and performance.
• Lead analysis/resolution of complex production issues and recurring problems by identifying root causes.
• Drive optimization across app performance, DB queries, indexing, and technical debt reduction.
• Define technical approaches for new features aligned with architectural standards.
• Recommend modernization opportunities, incl. targeted adoption of .NET 10 where suitable.
• Own the full software development lifecycle from design to deployment and monitoring.
• Collaborate with product, design, and data teams to deliver impactful solutions.
• Mentor engineers and promote performance, security, reliability and engineering excellence.

Skills

C# / .NET

ASP.NET MVC

Web API design

Software architecture

SQL Server / EF / ORM

Performance tuning

Distributed systems

AI concepts

Mentoring

Testing strategies

Education

Strong technical foundation

Tools

Entity Framework Core

Dapper / ADO.NET

SQL Server

Job description

Moody’s is seeking a senior .NET engineer to join the Orbis platform team. You will own production-grade services across .NET Framework and .NET Core, drive performance improvements, and lead complex issue resolution across large-scale financial data systems.

You’ll design robust architectures, implement AI-enabled workflows, and mentor engineers to uphold high standards. You’ll collaborate with product, design, and data teams to deliver scalable, secure solutions that power Moody’s analytics