Senior .NET Engineer | AWS, PostgreSQL, AI-enabled backend transformation

Your current company
Join a leading financial services organisation investing heavily in modernising critical platforms and building scalable, cloud-based services for the future.

Your new role
As a Senior Software Engineer, you'll join a highly technical team building a new service domain and migrating data and capability away from legacy platforms.
This is a heavily backend-focused engineering role, working across C#/.NET, AWS and PostgreSQL, with very little UI development. You'll design and build production-grade services, work on complex data migration and contribute to the modernisation of large-scale enterprise systems.
The environment is also embracing AI-assisted software engineering, with engineers encouraged to use contemporary AI tooling across development, testing, code quality and engineering productivity.

What you'll need to succeed
Robust hands-on C#/.NET backend engineering experience
Commercial experience working with AWS
Robust database knowledge, ideally PostgreSQL




Experience building APIs, services and data-heavy backend systems
Exposure to data migration, legacy modernisation or complex enterprise platforms
Strong automated testing and software engineering fundamentals
Practical experience using AI-assisted development and testing tools
Ability to contribute to production code and add value from day one
Financial services experience is beneficial, but not essential

What you'll get in return
12-month contract
Work on a major, long-term technology modernisation program
Modern .NET, AWS and PostgreSQL engineering environment
Exposure to emerging AI-enabled software engineering practices

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.

📌 Senior Software Engineer Net / Aws Sydney
🏢 Hays
📍 Sydney