Senior Developer - .NET | Dev & App Support Sydney CBD (Hybrid) | Long-term contract This role defines full-stack Microsoft engineering with a strong focus on application support, custom development, and platform stability. From building out new functionality in .NET and Azure - to maintaining the complex integrations and Dynamics 365/CE-based business applications that power the organisation - you'll work across every layer of delivery. You'll join a lean, high-impact team inside a large and complex enterprise. It's the kind of environment where your code and your troubleshooting skills both matter - and where you'll be trusted to own application health, performance, and continuous improvement end-to-end. What you'll work with: .NET Framework & .NET Core - app logic, integrations, legacy support C# - backend services, REST APIs, logic layers MS SQL Server - core enterprise database BizTalk Server - current primary enterprise integration layer Dynamics 365 / CE & SharePoint - critical business platforms you'll support and extend Azure App Services & Logic Apps - cloud-native builds and workflow automation Azure DevOps - CI/CD and repo management ReactJS - in play on newer front-end builds ✅ What you'll be doing: Maintain and support core applications across both custom code and OTB platforms Build new features and integrations in .NET, Azure, and Dynamics Investigate, troubleshoot, and resolve issues in production systems Collaborate closely with Tech Leads and BAs to shape technical outcomes Uphold quality through structured testing, documentation, and peer reviews Why this role: Core Microsoft stack work with strong application ownership Deep involvement across support, build, and integration Contract role with the longevity of perm - 5 year programs * Sydney CBD base with hybrid flexibility (Weds anchor day) Location: Sydney CBD (Hybrid) Working Model: Wednesday anchor day in the office. Other days flexible. Contract: 12-month rolling Rate: Up to $725 p.d. Interested? Send me your CV - let's talk.
