Senior Backend .NET Engineer | AI FinTech Startup | Sydney (Primarily Remote)
Salary: $160k+ Super
We're partnering with a fast-growing AI FinTech startup that's building a next-generation financial platform from the ground up. Having secured significant investment and with ambitious growth plans ahead, they're looking for a Senior Backend .NET Engineer to help shape the architecture and engineering standards of their core platform.
This is a genuine greenfield opportunity where you'll spend the majority of your time building scalable backend services, APIs and distributed systems using the latest Microsoft technologies. Working in a small, high-performing engineering team, you'll have significant ownership over technical decisions while enjoying the flexibility of a primarily remote working environment, with occasional Sydney meetups for planning and collaboration.
What You'll Be Working On
- Designing and building high-performance backend services using .NET 9, C# and microservices.
- Developing event-driven applications using Azure Service Bus, messaging patterns and Azure Functions.
- Building secure, scalable APIs powering a modern financial platform.
- Working across the full software development lifecycle from architecture through to deployment.
- Contributing to engineering standards, code reviews and technical direction.
- Mentoring junior engineers with a clear pathway into a Lead Engineer role.
What we're looking for:
- Robust commercial experience with C# and modern .NET (6/8/9).
- Proven experience building backend systems and microservices.
- Hands-on Azure experience, particularly Azure Functions and Azure Service Bus.
- Strong understanding of distributed systems and event-driven architecture.
- SQL database experience alongside CI/CD and Git.
- Excellent communication skills and the ability to thrive in a startup environment.
Nice To Have
- React exposure.
- Terraform or Bicep.
- FinTech or financial services experience.
- Previous mentoring or leadership experience.
What's on offer:
- $160k+ Super.
- Primarily remote working with occasional Sydney collaboration days.
- Greenfield platform built on the latest .NET and Azure technologies.
- High ownership with genuine influence over architecture.
- Clear progression into a technical leadership position.