Trade Platform Software Engineer: Scale APIs & Billing

Domain Group; Sydney; On-site; AUD 120,000 - 160,000; Full time

Job summary

Domain is hiring a Software Engineer for the Trade Platform in Sydney, Australia. You will develop and maintain C#/.NET-based solutions supporting billing, usage charging, and subscription management, while enabling premium product features and scalable APIs.

You will collaborate with Product, Engineering and business stakeholders to deliver customer value, troubleshoot production issues, and contribute to code quality, security, and best practices in an Agile environment.

Qualifications

• Commercial experience developing applications with C# and .NET.
• Experience building and consuming RESTful APIs and integrations.
• Strong understanding of software engineering fundamentals and design principles.
• Experience working with SQL databases and distributed systems.
• Knowledge of cloud platforms such as AWS, Azure or GCP.
• Experience delivering solutions that are scalable, reliable and maintainable.
• A collaborative mindset and ability to work effectively within Agile teams.
• Strong problem-solving and troubleshooting skills.
• A passion for continuous learning and improving engineering practices.

Responsibilities

• Develop, enhance, and maintain software solutions using C# and .NET.
• Support systems responsible for customer billing, usage charging, and subscription management.
• Build functionality that enables premium product features, including listing prioritisation, promotional placements, and customer entitlements.
• Maintain and improve agency booking APIs and integrations.
• Design, develop and support scalable applications from concept through to production.
• Collaborate with Product, Engineering and business stakeholders to deliver customer value.
• Troubleshoot, diagnose and resolve production issues across critical systems.
• Contribute to code quality, testing, security and engineering best practices.
• Participate in a shared on-call roster supporting business-critical applications.
• Continuously improve platform performance, reliability and scalability.

Skills

C#

.NET

RESTful APIs

SQL databases

Cloud platforms

Agile

Job description

Domain is hiring a Software Engineer for the Trade Platform in Sydney, Australia. You will develop and maintain C#/.NET-based solutions supporting billing, usage charging, and subscription management, while enabling premium product features and scalable APIs.

You will collaborate with Product, Engineering and business stakeholders to deliver customer value, troubleshoot production issues, and contribute to code quality, security, and best practices in an Agile environment.