Senior .NET Developer

About the Role

We are seeking a skilled Back End .NET Developer to design, build, and maintain scalable, high-performance backend services. The ideal candidate has hands-on experience with event-driven architectures, distributed systems, and modern .NET technologies. You will work closely with cross-functional teams to deliver reliable, resilient, and maintainable solutions.

About the Company
ASX-listed financial services organisation delivering secure, scalable, and innovative technology solutions to support our customers and business partners. Operating in a highly regulated environment, we focus on building resilient platforms that enable real-time processing, reliability, and growth. Technology plays a critical role in our continued success, and we are investing heavily in modern, event-driven architectures to support our evolving digital ecosystem.

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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