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Senior Backend .NET Engineer

Sustainrecruit — Australia · Posted ~5 days ago

Senior Full-time Remote $160K+ Super

Skills

.NET C# Backend development REST APIs Distributed systems Software architecture Scalable systems .NET 9 Microsoft technologies

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Summary ✨ AI‑Generated

A senior backend engineering role at a fast-growing AI-focused financial technology startup. You will build greenfield backend services, APIs, and distributed systems using modern Microsoft technologies while influencing architecture and engineering standards in a small, high-performing team.

Highlights

Greenfield engineering opportunity at a well-funded AI-focused financial technology startup. The role offers substantial technical ownership, scalable backend development, modern Microsoft technologies, and primarily remote work with occasional team meetups.

Description

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: Strong 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.