About Us:1 and One is a leading consultancy firm that partners with government clients across Australia. We are committed to delivering exceptional IT solutions that support the modernisation of government services and drive operational efficiency. The Opportunity:We are partnering with a Government client to support their digital transformation efforts. We are seeking a highly skilled Senior Microsoft .NET Developer to design, develop, and maintain critical applications. You will work on large-scale projects that contribute to the delivery of government services, ensuring the development and support of high-quality applications. Key Responsibilities: Develop and maintain web and desktop applications, web services, and batch jobs using C# and the .NET framework. Collaborate with technical teams to implement new features and resolve complex issues across multiple applications, including Staff Administration, Data Exchange (DEX), and Identity Manager (IDM). Provide technical leadership and ensure successful production releases. Perform code reviews, unit testing, and maintain application security standards. Write comprehensive technical documentation and reports for developed solutions. Key Attributes: Experience: Minimum of 4+ years in C# programming and .NET framework development, with experience in large or government IT environments. Skills: Strong knowledge of ASP.NET, SQL Server, and Azure DevOps. Leadership: Proven ability to lead development projects and mentor team members. Stakeholder Management: Strong communication skills with the ability to engage both technical and non-technical stakeholders. Technical Expertise: Experience with MVC design patterns, Dynamics CRM, and DevOps tools is highly desirable. Why Join Us?At 1 and One Consulting, we offer an engaging and collaborative work environment where you'll have the opportunity to work on critical projects that shape the future of government services. Join us to contribute to high-impact projects and work with leading-edge technologies. How to Apply:If you are an experienced Senior Microsoft .NET Developer looking to make an impact, we want to hear from you! Submit your resume and cover letter, highlighting your suitability for the role.