I am an experienced programmer and architect with a strong focus on maintaining and innovating corporate legacy projects. My expertise includes security and performance optimization, reverse engineering, data scraping, and research and development using a wide range of technologies including Rust, TypeScript, .NET, Python, and Ruby on Rails. I enjoy building scalable and secure systems, mobile backends, and engaging augmented reality marketing games. I have worked with diverse technologies and frameworks, integrating multiple backend systems and handling high loads, such as SMS portals processing 100k messages per second. I am passionate about designing custom security and currency transaction systems, as well as leading projects that require both deep technical knowledge and strategic architectural planning. I am disabled in speech, so I prefer to be contacted via email.

pok yan keith leung

I am an experienced programmer and architect with a strong focus on maintaining and innovating corporate legacy projects. My expertise includes security and performance optimization, reverse engineering, data scraping, and research and development using a wide range of technologies including Rust, TypeScript, .NET, Python, and Ruby on Rails. I enjoy building scalable and secure systems, mobile backends, and engaging augmented reality marketing games. I have worked with diverse technologies and frameworks, integrating multiple backend systems and handling high loads, such as SMS portals processing 100k messages per second. I am passionate about designing custom security and currency transaction systems, as well as leading projects that require both deep technical knowledge and strategic architectural planning. I am disabled in speech, so I prefer to be contacted via email.

Available to hire

I am an experienced programmer and architect with a strong focus on maintaining and innovating corporate legacy projects. My expertise includes security and performance optimization, reverse engineering, data scraping, and research and development using a wide range of technologies including Rust, TypeScript, .NET, Python, and Ruby on Rails. I enjoy building scalable and secure systems, mobile backends, and engaging augmented reality marketing games.

I have worked with diverse technologies and frameworks, integrating multiple backend systems and handling high loads, such as SMS portals processing 100k messages per second. I am passionate about designing custom security and currency transaction systems, as well as leading projects that require both deep technical knowledge and strategic architectural planning. I am disabled in speech, so I prefer to be contacted via email.

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Experience Level

Expert
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Expert
Expert
Expert
Expert
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Expert
Expert
Expert
Expert
Expert
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Expert
Expert
Expert
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Expert
Intermediate
Intermediate
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Work Experience

Programmer at VTL
December 31, 2020 - August 13, 2025
Worked fulltime for 2 years since 2018 and about 5 years freelance. Developed and maintained software systems including OTP mobile integration, intranet integration via SOAP, and custom security implementations. Delivered projects using .NET Core and MSSQL.

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Industry Experience

Software & Internet, Financial Services, Government, Healthcare, Gaming, Computers & Electronics, Media & Entertainment