We are partnering with an enterprise client to accelerate their core platform modernisation and microservices architecture. We are seeking a skilled Senior .NET / C# Microservices Developer to represent our organisation and take technical ownership of designing, building, and deploying high-performance enterprise applications.

In this role, you will bridge domain-driven application design and cloud-native backend services within our client’s ecosystem. You will be instrumental in building resilient REST/gRPC APIs, implementing asynchronous messaging architectures, and scaling applications on .NET 8/9, ASP.NET Core, and Azure/AWS .

? Visa & Sponsorship Options

As the employer of record, we provide full visa and migration support for qualified engineering talent deployed to our clients:

- 482 On-Hire Sponsorship Transfers: Fully supported for qualified candidates currently in Australia on an existing 482 visa looking to transfer sponsorship.
- Current 482 Visa Sponsorship: Available for qualified candidates meeting commercial experience and technical requirements.
- Temporary & Working Visa Holders: Open to all working visa holders seeking a direct pathway to employer sponsorship.

Core Responsibilities
- Microservices Development: Design, code, test, and maintain high-throughput backend services using C#, .NET 8/9, and ASP.NET Core .
- API & System Architecture:



Build secure RESTful and gRPC APIs adhering to domain-driven design (DDD) and Clean Architecture principles.
- Event-Driven Messaging: Implement asynchronous message streaming using Azure Service Bus, RabbitMQ, or Apache Kafka .
- Database & ORM Optimisation: Design and optimise relational databases (SQL Server, PostgreSQL) and NoSQL stores using Entity Framework Core or Dapper.
- Containerisation & Cloud Delivery: Containerise services using Docker and integrate into automated CI/CD pipelines targeting cloud environments (Azure/AWS).
- Code Quality & Testing: Write comprehensive unit, integration, and contract test suites (xUnit, NUnit, Moq) to ensure enterprise reliability.

Selection Criteria
- .NET Mastery: Proven commercial experience delivering production microservices using modern C# and .NET Core / .NET 8+ .
- Software Design: Deep understanding of Clean Architecture, SOLID principles, design patterns, and distributed system concepts.
- Data & Messaging: Practical experience with SQL Server/PostgreSQL, EF Core, and message brokers (Service Bus, RabbitMQ, or Kafka).
- Cloud & Containers: Hands-on experience with Docker and deploying services into Azure or AWS .
- Location Requirements: Currently residing in Australia with valid work rights or eligibility for 482 visa sponsorship/transfer.

📌 Senior .NET / C# Microservices Developer (Sydney)
🏢 AI Talent
📍 Sydney