Senior Developer

2 days ago

Sydney, New South Wales, Australia Sirius. Full time $80,000 - $140,000 per year

Senior .NET Developer | Cloud Engineering | Australia

Join a high-performing engineering team delivering scalable, cloud-native platforms for complex and high-traffic environments. We're seeking a Senior .NET Developer who loves solving tough problems, shipping great code, and continually improving systems.

What you'll do

  • Build and optimise high-performance .NET Core applications and distributed services
  • Contribute to cloud infrastructure and deployment pipelines using AWS services and infrastructure-as-code tools
  • Work with event-driven and streaming architectures across services such as AWS Lambda, MSK Connect, Flink, Neptune & Athena
  • Take features end-to-end—design, implementation, testing, deployment and monitoring
  • Ramp up quickly on existing systems and deliver meaningful improvements early on

What will make you succeed

  • Solid track record of shipping production software in complex systems
  • Ability to work autonomously and collaborate effectively within cross-functional teams
  • Strong problem-solving skills with the ability to navigate ambiguity
  • Growth mindset—comfortable learning new AWS services and tools as needed
  • Customer-centric approach to product and technical decisions

What you'll bring

  • Strong experience with C#, .NET Core & RESTful APIs
  • Experience with cloud environments (AWS preferred) and IaC tools like CloudFormation/Terraform
  • CI/CD pipeline knowledge (GitHub Actions, TeamCity or similar)
  • Good understanding of relational and document databases: Aurora, Postgres, SQL Server, DocumentDB
  • Solid software engineering principles: OOP, clean architecture, SOLID

Nice to have

  • Networking fundamentals; Linux & Windows environments
  • Experience with data/streaming tools such as Glue, Kinesis, EMR, Firehose
  • Exposure to observability tooling (Grafana/Prometheus)

If you're passionate about building reliable, scalable cloud solutions—and want opportunities to grow your technical ownership—let's talk.

Apply now or reach out for a confidential discussion.

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