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Senior .NET Developer and Solution Architect with 30+ years of experience delivering enterprise and government systems. Expert in C#, ASP.NET, .NET Core/.NET 8, and Azure cloud platforms—focused on modernising legacy solutions and building secure, scalable services. Proven record of leading architecture, developing RESTful APIs and microservices, improving performance, and producing design and release documentation. Strong background in CI/CD, automated testing, and security-aware development aligned with government standards.…Senior .NET Developer and Solution Architect with 30+ years of experience delivering enterprise and government systems. Expert in C#, ASP.NET, .NET Core/.NET 8, and Azure cloud platforms—focused on modernising legacy solutions and building secure, scalable services. Proven record of leading architecture, developing RESTful APIs and microservices, improving performance, and producing design and release documentation. Strong background in CI/CD, automated testing, and security-aware development aligned with government standards.

Sean Weissensee

Back-End Developer, Web Developer, Programmer, +2

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Senior .NET Developer and Solution Architect with 30+ years of experience delivering enterprise and government systems. Expert in C#, ASP.NET, .NET Core/.NET 8, and Azure cloud platforms—focused on modernising legacy solutions and building secure, scalable services. Proven record of leading architecture, developing RESTful APIs and microservices, improving performance, and producing design and release documentation. Strong background in CI/CD, automated testing, and security-aware development aligned with government standards.…Senior .NET Developer and Solution Architect with 30+ years of experience delivering enterprise and government systems. Expert in C#, ASP.NET, .NET Core/.NET 8, and Azure cloud platforms—focused on modernising legacy solutions and building secure, scalable services. Proven record of leading architecture, developing RESTful APIs and microservices, improving performance, and producing design and release documentation. Strong background in CI/CD, automated testing, and security-aware development aligned with government standards.

Available to hire

Senior .NET Developer and Solution Architect with 30+ years of experience delivering enterprise and government systems. Expert in C#, ASP.NET, .NET Core/.NET 8, and Azure cloud platforms—focused on modernising legacy solutions and building secure, scalable services.

Proven record of leading architecture, developing RESTful APIs and microservices, improving performance, and producing design and release documentation. Strong background in CI/CD, automated testing, and security-aware development aligned with government standards.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Beginner

Work Experience

Senior Developer at Department of Health and Aged Care

November 1, 2021 - Present

Develop and maintain .NET 8 and MVC applications supporting Aged Care Gateway systems. Diagnose production issues using Splunk, Fiddler, and SOAP UID. Develop backend frameworks for mobile applications and collaborate with middleware, testers, and business stakeholders. Produce technical design and release documentation.

Senior Developer at Mavitra

August 1, 2020 - November 1, 2021

Built microservices using ASP.NET Core and Azure services, including Azure Functions, Logic Apps, and Event Grid integrations. Developed inventory/product microservices and integrated third-party enterprise systems.

Senior Developer at QLD Dept of Education

February 1, 2020 - July 1, 2020

Designed CI/CD pipelines using Azure DevOps and migrated applications from TFS to Git. Provided containerisation and DevOps recommendations.

Senior Developer at E-PayDay

July 1, 2019 - February 1, 2020

Led architecture of a payroll system using ASP.NET Core. Implemented CI/CD and automated testing practices and applied Domain Driven Design and TDD.

Senior Developer / Analyst at Department of Human Services

June 1, 2017 - July 1, 2019

Developed SAPUI5 and Angular applications and designed UI frameworks and navigation systems. Implemented WCAG accessibility standards, mentored developers, and contributed through multiple government/enterprise roles across SOA-based integrations and reporting solutions (SSRS, Crystal Reports).