Senior .NET Application Developer – Cloud & API Focus

About the role

We are looking for a Senior .NET Application Developer to join an Agile delivery team working on large‑scale digital transformation projects across Melbourne, Brisbane or Wollongong. The role is a 12‑month fixed‑term contract with the possibility of extension, and requires a baseline security clearance.

Key responsibilities

• Develop and maintain enterprise applications using .NET and C#.
• Design, build and document APIs and integrations.
• Deliver data migration and transformation solutions.
• Participate in solution design, code reviews and technical discussions.
• Troubleshoot, optimise and enhance application performance.
• Contribute to CI/CD pipelines, deployment and DevOps practices.
• Collaborate within Agile Scrum teams to deliver high‑quality outcomes.

Required profile

• Proven experience as a senior .NET developer on enterprise‑scale projects.
• Baseline security clearance is mandatory.
• Ability to work effectively in an Agile Scrum environment.
• Strong problem‑solving skills and attention to performance optimisation.

Required skills

• .NET, C#
• AWS Lambda, API Gateway, AWS DMS, AWS SCT
• Azure DevOps
• Database development and migration (Aurora, MongoDB)
• DevOps, CI/CD, CloudFormation / Infrastructure as Code
• AWS Fargate, AWS Kinesis, AWS CloudWatch
• Containerisation
• Angular SPA development
• Rules engine implementation

What we offer

• 12‑month contract with potential extension.
• Opportunity to work on high‑impact, cloud‑native digital transformation projects.
• Collaboration with a high‑performing Agile delivery team.