Anton Firszov
Software Engineer at Microsoft
Prague, Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolAnton Firszov is a software engineer with over a decade of experience building high-performance systems in C#/.NET and modern C++, currently working on .NET runtime networking at Microsoft. He combines deep knowledge of runtime internals, networking, multithreading and async with practical expertise in graphics, image processing and geometry—having been a core contributor to SixLabors/ImageSharp (230M+ downloads). Anton has a track record of shipping robust, maintainable APIs and improving test coverage across large open-source projects like dotnet/runtime and .NET MAUI, including cross-platform handler implementations. Comfortable across high-level architecture and low-level platform concerns, he also brings practical tooling experience (Roslyn-based code generation, TDD) and a strategic, long-term ownership mindset. Based in Prague, he increasingly adopts AI-assisted workflows to accelerate problem solving and code quality.
11 years of coding experience
12 years of employment as a software developer
Budapest University of Technology and Economics
Hungarian, English, Russian
Github Skills (33)
multiplatform10
image-processing10
maui10
net10
http10
xamarin10
dotnet10
user-interface10
net-maui10
network-programming10
asp-net10
api-documentation10
socket10
dotnet-core10
netcore10
Programming languages (13)
Github contributions (5)
SixLabors/ImageSharp
Nov 2016 - Dec 2022
:camera: A modern, cross-platform, 2D Graphics library for .NET
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 releases, 707 reviews, 3323 commits in 6 years 2 months
Contributions summary:Anton's commits focused on refactoring the image transformation processing within the SixLabors.ImageSharp library. They implemented optimizations for specific rotation angles, streamlined the processing of image transformations, and addressed issues related to image metadata. They also sealed several classes within the project.
bmpvulkancamerac-sharpjpeg
dotnet/maui
Mar 2021 - Apr 2022
.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:16 reviews, 27 commits, 25 PRs in 1 year 1 month
Contributions summary:Anton primarily focused on refactoring and improving the .NET MAUI framework's core components. Their work involved implementing interfaces for essential features like Share, SemanticScreenReader, Accelerometer, and various handler implementations. They also contributed to the interface handlers for Entry, FlyoutView, ContentView, DatePicker, Editor, Image, ImageButton, Border, CheckBox, IndicatorView, Layout, SwipeItemMenuItem, Label, Navigation View, Page, Picker, ProgressBar, Switch, TimePicker, ShapeView, Slider, Stepper, RadioButton, and WebView, including updating the code to align with the current conventions of the framework. This included platform-specific implementations for Android, iOS, Windows, and other supported platforms, and involved significant code modifications across multiple files.
app-platformmauimulti-platformiosmicrosoft
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