Sergey Aseev
Head Of .NET Engineering at Devexperts
Sofia, Sofia-City, Bulgaria
Summary
👤
Senior🎓
Top SchoolSergey Aseev is a seasoned .NET engineering leader with over a decade of experience, currently heading .NET initiatives and delivery at Devexperts in Sofia. He combines hands-on engineering—having contributed to prominent OSS projects like FluentAssertions, BenchmarkDotNet and Mono.Cecil—with people and product leadership across hiring, resource planning and budgeting. His background spans solution architecture, delivery management for large EU broker projects and building cross‑platform .NET Core backends with strong test and CI practices. Sergey is a .NET Foundation member who brings practical insight into edge-case robustness (e.g., improving string and collection assertions) and a track record of turning deep technical fixes into more reliable libraries. Colleagues value him for bridging customer-facing solution design with disciplined engineering execution.
10 years of coding experience
5 years of employment as a software developer
Bachelor’s Degree, Faculty of Informatics and computer engineering, computer science and computer engineering, Bachelor’s Degree, Faculty of Informatics and computer engineering, computer science and computer engineering at Southwest State University (former Kursk State Technical University)
English, Russian
Github Skills (7)
unit-testing10
assertion10
fluentassertions10
tdd10
csharp10
xunit10
dotnet-core10
Programming languages (10)
Github contributions (5)
fluentassertions/fluentassertions
Oct 2020 - Jul 2021
A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:14 reviews, 6 commits, 12 PRs in 8 months
Contributions summary:Sergey primarily contributed to improving the robustness and reliability of the FluentAssertions library. Their commits focused on refining string assertion methods to handle edge cases, specifically empty string scenarios. They also introduced new features, such as the ability to order collections by multiple properties. Furthermore, the user addressed bugs related to multiple enumeration in collection assertions and fixed the formatting of assertion messages.
bdd-styleoutcomeunitc-sharptdd
Serg046/AopSettings
Dec 2017 - Apr 2024
Castle.DynamicProxy based library that provides a way to create application settings using AOP style.
Contributions:4 PRs, 21 pushes, 5 branches in 6 years 4 months
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