Work options: Hybrid Must have a current NV1 Security Clearance Offices located in Sydney or Melbourne We're looking for a Senior Software Engineer with strong .NET and Azure expertise to join a high-performing team delivering modernisation and cloud transformation initiatives. This role offers the opportunity to work on large-scale enterprise applications, helping clients uplift legacy systems, migrate workloads to Azure, and build robust, scalable solutions using modern engineering practices. What You'll Be Doing Design, develop, and enhance back-end services, including Web APIs and worker applications using C# and .NET Core. Lead application modernisation initiatives, upgrading existing .NET applications to maintain security, compliance, and long-term support standards. Migrate on-premises applications and services to Azure PaaS and IaaS environments. Collaborate with DevOps teams to implement and optimise Azure infrastructure, CI/CD pipelines, and deployment processes. Improve automated testing and increase unit test coverage to support high-quality software delivery. Work closely with clients and delivery teams in an Agile environment, participating in sprint planning, stand-ups, backlog refinement, and solution discussions. Contribute to technical design, problem-solving, and continuous improvement initiatives. What We're Looking For Must have 8 years' experience developing enterprise applications using C# and .NET technologies. Strong hands-on experience with .NET Core and Microsoft Azure services. Solid understanding of RESTful APIs, web services, and integration patterns. Experience working with relational databases, ideally SQL Server. Strong knowledge of Agile delivery methodologies. Proven ability to work across both legacy system modernisation and greenfield development projects. Experience implementing secure application integrations, including one-way and two-way SSL encryption. Nice to Have Experience working within highly regulated industries, including government environments. Exposure to automated testing frameworks and test automation practices. Strong communication and stakeholder engagement skills. Ability to work independently while contributing effectively within a collaborative team environment. Passion for clean code, quality engineering, and continuous improvement. Why Apply? Work on impactful cloud transformation and application modernisation projects. Gain exposure to enterprise-scale Azure environments and modern engineering practices. Collaborate with experienced architects, engineers, and DevOps professionals. Join a supportive Agile team focused on innovation, quality, and continuous learning.