Australian Group Insurances – Sydney CBD NSW

Australian Group Insurances (AGI) is seeking an experienced Senior C# .NET Developer to build, enhance and maintain its core WPF desktop application and SQL Server backend.

This hands‑on role combines feature delivery, application maintenance and defect resolution across the UI and database layers. The successful candidate will work closely with users, managers, BAs, testers and teammates to understand business needs, communicate clearly and translate requirements into reliable, maintainable software.

Core Responsibilities

Design, build and maintain features within the WPF (.NET) desktop application.

Write, optimise and troubleshoot complex T‑SQL stored procedures, functions and views that support core business processes.

Diagnose and resolve defects across the WPF/XAML/MVVM and SQL Server layers.

Engage directly with users when useful to understand their workflows, clarify requirements and validate outcomes.

Test changes against agreed acceptance criteria and verify end‑to‑end user workflows before handover to UAT.

Manage day‑to‑day execution around agreed priorities, raising risks, blockers, conflicts or uncertainty early.

Role Overview

Australian Group Insurances (AGI) is seeking an experienced Senior C# .NET Developer to build, enhance and maintain its core WPF desktop application and SQL Server backend.

This hands‑on role combines feature delivery, application maintenance and defect resolution across the UI and database layers. The successful candidate will work closely with users, managers, BAs, testers and teammates to understand business needs, communicate clearly and translate requirements into reliable, maintainable software.

Core Responsibilities





- Design, build and maintain features within the WPF (.NET) desktop application.
- Write, optimise and troubleshoot complex T‑SQL stored procedures, functions and views that support core business processes.
- Diagnose and resolve defects across the WPF/XAML/MVVM and SQL Server layers.
- Engage directly with users when practical to understand their workflows, clarify requirements and validate outcomes.
- Test changes against agreed acceptance criteria and verify end‑to‑end user workflows before handover to UAT.
- Manage day‑to‑day execution around agreed priorities, raising risks, blockers, conflicts or uncertainty early.

Additional Contributions

- Use AI‑assisted development tools such as GitHub Copilot and Claude Code to improve delivery productivity and product quality, consistent with AGI's AI‑enabled delivery approach.
- Identify practical improvements, explain their value and trade‑offs, obtain alignment and implement agreed changes.
- Contribute to code reviews, technical documentation, UAT, releases and necessary routine maintenance or delivery‑support work, including data investigation and correction when required.

Essential Skills & Experience

- Strong commercial experience in C#/.NET.
- Hands‑on experience building and maintaining WPF desktop applications (XAML, MVVM, data binding).




- Advanced SQL Server skills — writing and optimising stored procedures, functions and complex queries.
- Demonstrated ability to use AI coding assistants (e.g. GitHub Copilot, Claude Code, Cursor or similar), with concrete examples of improved delivery productivity or product quality.
- Strong debugging and problem‑solving skills spanning both UI and database layers, with ownership of quality through thorough testing before UAT.
- Customer‑focused approach that seeks to understand the need behind requirements and help users get the best outcome from the software.
- Proactive, clear communicator who works effectively with users, managers and delivery teammates, organises work around agreed priorities and seeks help or clarification early when needed.
- Sound professional judgement: raises concerns and alternatives constructively, respects business priorities and decision rights, and supports agreed decisions.
- Pragmatic improvement mindset: reliably completes necessary routine maintenance and delivery‑support work while proposing proportionate improvements and implementing them once agreed.

Desirable Skills

- Experience in Life insurance, financial services or another regulated industry.
- Experience modernising or maintaining legacy desktop applications.
- Familiarity with SQL Server Agent jobs / scheduled batch processing.
- Exposure to CI/CD pipelines for desktop applications.

Engagement Summary

Location: Town Hall, Sydney, NSW — onsite – close to transport

Contract Duration: 6 months (potential to extend)

Start Date: ASAP

Rate: Market rate

Engagement Type: Contract

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📌 Senior C# /.NET Developer (WPF) (New South Wales)
🏢 Australian Group Insurances
📍 New South Wales