Principal Backend Engineer – FinTech & Cloud
Summary
Leads backend architecture in C#/.NET, building scalable cloud-native systems for millions of users while mentoring engineers and shaping CI/CD and data strategies.
Arcadia in Toronto is seeking a Principal Software Developer to lead hands-on backend work using C# and .NET, shaping scalable systems that serve millions of customers in Canada and the US. You will design architectures, mentor engineers, and collaborate across product, QA, and security teams while advancing CI/CD, cloud-native microservices, and data strategies in a hybrid environment.
The ideal candidate has 12+ years of experience, deep system design skills, and a track record of delivering