Senior .NET Developer

Salary: $800 - $900 p.d.

About the Role

We're currently looking for a Senior .Net Developer to undertake an initial 6 month contract for scale up, fintech in Sydney. They are ideally looking for an experienced engineer with a strong background in application development on complex, scaled systems hosted on Azure. You will work closely with cross-functional teams to deliver reliable, resilient, and maintainable solutions.

Key Responsibilities

• Design, develop, and maintain backend services using .NET / .NET Core (C#)
• Build and support event-driven systems using message brokers and streaming platforms
• Implement asynchronous, decoupled communication patterns (e.g., publish/subscribe, event sourcing, CQRS where applicable)
• Develop and maintain RESTful APIs and/or gRPC services
• Integrate with databases (SQL and NoSQL) and optimize data access
• Ensure system reliability, scalability, and fault tolerance
• Write clean, testable, and well-documented code
• Collaborate with frontend developers, DevOps, and product teams
• Participate in code reviews and contribute to architectural decisions
• Monitor, troubleshoot, and improve system performance in production

Required Background:

• Strong experience with C# and .NET / .NET Core
• Hands-on experience with event-driven architecture
• Experience with messaging and streaming technologies such as:
• Azure Service Bus, Event Grid, Event Hubs
• RabbitMQ, Apache Kafka, or similar
• Solid understanding of asynchronous programming and concurrency
• Experience building APIs using ASP.NET Core
• Strong knowledge of relational databases (e.g., SQL Server, PostgreSQL)
• Familiarity with unit testing and integration testing
• Understanding of software design principles and patterns
• Experience with version control systems (e.g., Git)

Preferred:

• Experience with cloud platforms (Azure preferred, AWS/GCP acceptable)
• Knowledge of microservices architecture
• Familiarity with Docker and container orchestration (Kubernetes)
• Experience with CI/CD pipelines
• Exposure to Domain-Driven Design (DDD)
• Monitoring and observability tools (Application Insights, Prometheus, Grafana, etc.)

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