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I'm Yixuan (Julia) Liu, a Senior Full Stack Engineer with 7 years of experience building and maintaining complex, business-critical software at scale. I specialize in C#/.NET, ASP.NET Core, and SQL Server, with hands-on work in React and JavaScript on the frontend. I’m comfortable across Azure, AWS, Docker, and CI/CD, and I enjoy tackling high-impact work like performance bottlenecks and legacy modernization to reduce technical debt. Colleagues describe me as a 'heavy lifter' who can get practical, maintainable solutions over the line. I completed a Master of Computer Applications with Distinction while working full time, and I bring a collaborative, mentor-minded approach to teams.…I'm Yixuan (Julia) Liu, a Senior Full Stack Engineer with 7 years of experience building and maintaining complex, business-critical software at scale. I specialize in C#/.NET, ASP.NET Core, and SQL Server, with hands-on work in React and JavaScript on the frontend. I’m comfortable across Azure, AWS, Docker, and CI/CD, and I enjoy tackling high-impact work like performance bottlenecks and legacy modernization to reduce technical debt. Colleagues describe me as a 'heavy lifter' who can get practical, maintainable solutions over the line. I completed a Master of Computer Applications with Distinction while working full time, and I bring a collaborative, mentor-minded approach to teams.

Julia Liu

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I'm Yixuan (Julia) Liu, a Senior Full Stack Engineer with 7 years of experience building and maintaining complex, business-critical software at scale. I specialize in C#/.NET, ASP.NET Core, and SQL Server, with hands-on work in React and JavaScript on the frontend. I’m comfortable across Azure, AWS, Docker, and CI/CD, and I enjoy tackling high-impact work like performance bottlenecks and legacy modernization to reduce technical debt. Colleagues describe me as a 'heavy lifter' who can get practical, maintainable solutions over the line. I completed a Master of Computer Applications with Distinction while working full time, and I bring a collaborative, mentor-minded approach to teams.…I'm Yixuan (Julia) Liu, a Senior Full Stack Engineer with 7 years of experience building and maintaining complex, business-critical software at scale. I specialize in C#/.NET, ASP.NET Core, and SQL Server, with hands-on work in React and JavaScript on the frontend. I’m comfortable across Azure, AWS, Docker, and CI/CD, and I enjoy tackling high-impact work like performance bottlenecks and legacy modernization to reduce technical debt. Colleagues describe me as a 'heavy lifter' who can get practical, maintainable solutions over the line. I completed a Master of Computer Applications with Distinction while working full time, and I bring a collaborative, mentor-minded approach to teams.

Available to hire

I’m Yixuan (Julia) Liu, a Senior Full Stack Engineer with 7 years of experience building and maintaining complex, business-critical software at scale. I specialize in C#/.NET, ASP.NET Core, and SQL Server, with hands-on work in React and JavaScript on the frontend. I’m comfortable across Azure, AWS, Docker, and CI/CD, and I enjoy tackling high-impact work like performance bottlenecks and legacy modernization to reduce technical debt.

Colleagues describe me as a ‘heavy lifter’ who can get practical, maintainable solutions over the line. I completed a Master of Computer Applications with Distinction while working full time, and I bring a collaborative, mentor-minded approach to teams.

Skills

Experience Level

Expert

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Language

English

Fluent

Work Experience

Senior Software Engineer at FIS

June 1, 2019 - Present

Backend Engineering & Data Pipelines: Led backend improvements and data pipeline work for a client in the financial sector. Reduced a critical overnight batch from 2–4 hours to ~30 minutes by analyzing SQL Server execution plans, reducing tracing overhead in Azure Application Insights, optimizing C#/.NET backend logic, and eliminating repeated database calls. Designed and implemented C# consolidation logic for a static data import/export migration, surfacing circular reference behavior from the legacy system for correct handling in the redesign. Resolved a production SQL Server deadlock by analyzing transactions and locking behavior, optimizing indexing and temporary table usage. Improved data access performance for large-volume business screens by redesigning filtering and data-loading approaches to return results in seconds.

Research Assistant at Callaghan Innovation

April 1, 2018 - June 1, 2019

Developed mobile and AR applications across iOS, Android, and HoloLens using Unity, C#, Java and REST APIs. Delivered client-facing demos and received positive stakeholder feedback.