Senior Developer (C# / .NET)

OnCloud Pty Ltd; Western Australia; Hybrid; AUD 120,000 - 160,000; Full time

Job summary

OnCloud Pty Ltd is a Perth technology consultancy delivering software for clients across infrastructure, resources and services. This role designs, builds and supports C#/.NET applications from the first commit through to production.

You will work closely with clients, steer technical decisions and help set the standard for code quality across the team. We seek a Senior developer with 5+ years in C#/.NET, strong ASP.NET Core and REST APIs, and experience in Azure.

Qualifications

• 5+ years of commercial C# / .NET development.
• Strong ASP.NET Core, REST APIs, SQL Server / Entity Framework.
• Experience with Azure (App Services, Functions, Azure DevOps or GitHub Actions).
• Clear communication with clients, not just other developers.

Responsibilities

• Build and maintain C# / .NET (Core/8+) applications and APIs.
• Own features end to end: design, code, test, deploy, support.
• Work in Azure and take part in CI/CD, cloud architecture and DevOps.
• Review code and mentor other developers.
• Turn client problems into clear, workable solutions.

Skills

C# / .NET development

ASP.NET Core

REST APIs

SQL Server

Entity Framework

Azure

DevOps

Client communication

React/Blazor (nice to have)

Consulting background (nice to have)

Tools

Azure DevOps

GitHub Actions

Job description

OnCloud is a Perth technology consultancy. We build, run and support software for clients across infrastructure, resources and services. We're small on purpose, so everyone ships and everyone's work counts.

The role

You'll design, build and support C#/.NET applications from the first commit through to production. You'll work closely with clients, steer technical decisions and help set the standard for code quality across the team.

What you'll do

Build and maintain C# / .NET (Core/8+) applications and APIs

Own features end to end: design, code, test, deploy, support

Work in Azure and take part in CI/CD, cloud architecture and DevOps

Review code and mentor other developers

Turn client problems into clear, workable solutions

What you bring

5+ years of commercial C# / .NET development

Strong ASP.NET Core, REST APIs, SQL Server / Entity Framework

Experience with Azure (App Services, Functions, Azure DevOps or GitHub Actions)

Clear communication with clients, not just other developers

Nice to have: front end (React/Blazor), managed support work, consulting background

Senior role with real ownership and autonomy

Varied client work, so you won't sit on one codebase for years

Hybrid flexibility, Perth CBD/metro