Profectus is seeking multiple experienced Senior C#/.NET Software Engineers to support application development and sustainment within an Australian Government agency. You will work across the full stack of application development within a small team, building and maintaining web applications and custom internal applications in a Microsoft environment. The work covers solution design, coding, database development, release and deployment, and Level 3 support of production applications.

Key Responsibilities

Design and develop scalable applications using C# and .NET Framework/.NET Core

Build and maintain web applications using ASP.NET MVC, Web API and modern front end technologies

Create and maintain database solutions using SQL Server, Entity Framework and related data technologies

Develop responsive user interfaces using HTML5, CSS3 and JavaScript

Maintain deployment procedures, code repositories and CI/CD pipelines

Write clean, maintainable and well documented code aligned to established coding standards

Participate in code reviews and provide feedback to other developers

Optimise application performance and address scalability requirements

Work with testing teams to confirm quality before release

Provide technical guidance and mentoring to junior developers

Debug and resolve software defects and performance issues

Maintain and enhance existing applications based on user feedback and business requirements

Monitor application performance using logging and monitoring tools and implement improvements

Document technical specifications and maintain system documentation

Required Experience

5+ years of commercial C# development experience

Robust proficiency with .NET Framework 4.5+ and/or .NET Core/.NET 5+





Experience with ASP.NET MVC, Web API and web application development

Solid understanding of object oriented programming principles and design patterns

SQL Server experience covering database design and complex query development

HTML5, CSS3, JavaScript and at least one modern JavaScript framework

Experience with DevOps practices, source control and CI/CD pipelines

Ability to take technical responsibility across all stages of software development and to plan and drive development activities

Experience planning and delivering release packages, including risk assessment, post release review and rollback

Experience delivering systems integration between applications and building continuous integration capability

Desirable Experience

Experience designing complex applications, components and modules, including alternative design options and trade offs

Experience taking technical responsibility for configuration development and deployment

Ability to advise on and select development methods and tools in line with agreed standards

Awareness of emerging technologies and their impact on an organisation

Previous experience delivering within an Australian Government agency

Security Clearance Requirements

Must be an Australian Citizen

Must be able to obtain a Negative Vetting Level 1 (NV1) clearance

An active NV1 clearance is preferred

Working Arrangements

Hybrid

Canberra

Why Profectus Profectus partners with Australian Government agencies to deliver trusted ICT capability across complex delivery programs. We take a long term, relationship driven approach, supporting our people across the full lifecycle of their engagement while contributing to outcomes of national importance.

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📌 Senior C# .Net Software Engineer (Canberra)
🏢 Profectus
📍 Canberra