Language: Russian | English current | R&D version

Hi, I'm Nikolai Dvurechensky
Systems Engineer • .NET Developer • Reverse Engineer • Full Stack Engineer

Engineer for complex systems, legacy code, backend platforms, tooling, and R&D-heavy work

.NET • C/C++ • C# • Python • Unity • TypeScript • Reverse • Linux • Windows

Profile · Value · Achievements · Experience · Projects · Stack · R&D

Short Profile

I am an engineer who works at the intersection of backend development, systems analysis, reverse engineering, desktop tooling, game servers, and infrastructure. Since 2014 I have been growing through programming and reverse engineering; commercially, I have worked with .NET, Unity, C++, Python, Linux/Windows, PostgreSQL, RabbitMQ, Docker, CI, and visualization systems.

I am looking for a strong team and a product where the job is not only to “write code”, but also to understand complex systems, recover architecture, design internal tools, bring solutions to a working state, and leave a clear engineering base behind.

10+ years of engineering experience: from online game reverse engineering and system administration to .NET backend, Unity, C++, and infrastructure services.
Strong area: complex systems, legacy code, binary analysis, .NET tools, server platforms, dependency visualization, automation, and documentation.
Public track record: dozens of repositories and projects across the Dvurechensky, Lizerium, Dvurechensky Tools, Dvurechensky Docs, Templates, and Test Tasks ecosystems.
Rare combination: backend + desktop + reverse + game/server engineering + the ability to explain and document complex systems.

Contacts: dvurechenskysoft@gmail.com / nikolay@dvurechensky.pro
Website: dvurechensky.pro
GitHub: github.com/Dvurechensky
ORCID: 0009-0004-2701-5592

Value For An Employer

Quickly understand unfamiliar codebases, protocols, data formats, and old systems.
Design .NET backend services, integrations, queues, databases, and admin panels.
Build tools that save team time: analyzers, generators, converters, diff/monitoring utilities, project templates.
Work across Windows/Linux, Docker, Jenkins, Git/SVN, PostgreSQL, RabbitMQ, Redis, and nginx.
Lead a task from research to release: hypothesis, prototype, implementation, debugging, documentation, and support.
Handle legacy systems, reverse engineering, C/C++, ABI, DLLs, x86, Ghidra/x32dbg/IDA-style workflows, and low-level diagnostics.

Key Achievements

Reverse Engineering And Systems Analysis

Freelancer.Reverse.Runtime: a runtime layer on top of the original Freelancer (2003) engine, where DLL modules are replaced by compatible proxy components with controlled C++ code, logging, and behavior reconstruction.
ReverseProxyDLL: a reverse-aware proxy DLL scaffold generator for legacy x86 Windows DLLs, covering exports, ordinals, ABI, C/C++ symbols, data exports, and manual override scenarios.
BinNexus: a Windows DLL/EXE analysis tool that generates an interactive web portal with dependency graphs, exports, symbol search, and system-noise filtering.
Freelancer/Lizerium C++/ASM ecosystem: plugins, server extensions, game DLLs, data formats, tooling, and administration.

.NET, Backend And Infrastructure

ASP.NET Core MVC applications with PostgreSQL, EF Core, RabbitMQ, Docker, Jenkins, Git/SVN.
.NET Framework -> .NET 6/7/8 migrations, architectural stabilization, dependencies, and builds.
Pentest monitoring system: data collection, visualization, analytics, server logic, and UI.
Lizerium Server: modular ASP.NET Core MVC platform for a game portal, admin backend, knowledge base, documentation, translations, internal services, and network protection.
Unifier: registered software system for distributed device interaction and infrastructure orchestration.

Desktop, Tooling And Automation

FileSync Sentinel: .NET 8 WinForms application for real-time file monitoring, visual diff, logging, and synchronization of large .ini sets.
Herodotus: WPF/Prism MVVM tool for presentation and demo scenarios with Markdown preview.
LibreResxTranslate: NuGet library for automated .resx localization through LibreTranslate.
Templates: Telegram bot template, ASP.NET Core MVC template, Electron/Vue/Vite template.

Unity, Game Development And VR

OXSIONSOFT/Lizerium, Ceek Virtual Reality: features, bug fixing, UI redesign, and client-server improvements.
Memory optimization through Unity Addressables, improving stability on Android 7+.
Unity3D, HDRP, VFX Graph, Zenject, Addressables, Photon Engine, Blender, Substance, Photoshop.

Experience

OXSIONSOFT / Lizerium

Unity Developer
March 2021 - 2026, 5+ years

Feature development, bug fixing, and UI redesigns for VR/Unity projects.
Memory optimization via Addressables and improved mobile build stability.
Multiplayer with Photon Engine, client-server API improvements, and technical specifications.

Moscow Institute of Psychoanalysis

Technical Specialist
February 2020 - Present, 6+ years

Technical support for an online video platform and live broadcasts.
Helped 1000+ users of different ages and devices join educational events.

NPC Reagent / SIGMA / CMK Consulting

.NET Developer
2019 - 2025, 5+ years total

ASP.NET Core MVC applications, PostgreSQL, EF Core, RabbitMQ, Docker.
Dependency visualization for C#/C++ projects and NuGet graphs.
.NET Framework -> .NET 6/7/8 migrations, refactoring, architectural stabilization.
Monitoring, analytics, and visualization systems for security/pentest processes.

Freelancer Rebirth

C++ Developer
November 2020 - November 2023, 3 years

Supported a major CIS mod for Freelancer (2003).
Migrated 25+ plugins and core code into a unified C++ solution.
Completed 3 major migrations between Visual Studio generations.

InterEVM / CITIS

Systems Engineer
February 2020 - June 2023, 3+ years

Monitoring systems in Qt, data analyzers in Python/PHP.
XSLT/XML templates, PostgreSQL query optimization.
Astra Linux, Ubuntu, Debian, Windows.

Selected Projects

Project	What it proves	Technologies
Freelancer.Reverse.Runtime	Reverse engineering, C++ runtime layer, compatible DLLs, legacy engine behavior recovery	C, C++, ASM x86, Ghidra, x32dbg
ReverseProxyDLL	Proxy DLL scaffold generation for old Windows x86 libraries	Python, C++
BinNexus	DLL/EXE analysis, dependency graph, export explorer, web visualization	Python, JavaScript, C++, HTML/CSS
Lizerium Server	Modular server platform for portal, admin, documentation, and services	ASP.NET Core MVC, EF Core, PostgreSQL
FileSync Sentinel	Desktop tool for file monitoring, diff, and synchronization	.NET 8, WinForms, DiffPlex
Herodotus	WPF/MVVM app for demo scenarios and Markdown workflow	WPF, Prism MVVM, HandyControl
LibreResxTranslate	NuGet library for automated .NET localization	C#, .NET, RESX, LibreTranslate

Technology Stack

Backend / .NET: C#, .NET Framework, .NET 6/7/8, ASP.NET Core MVC, SignalR, EF Core, xUnit, NUnit
Databases / Messaging: PostgreSQL, SQL Server, MySQL, Redis, RabbitMQ
Infrastructure: Docker, Jenkins, nginx, Git, SVN, Gitea, Linux, Windows
Frontend / Visualization: TypeScript, JavaScript, Cytoscape.js, Three.js, HTML5, SCSS/CSS, Webpack, Grunt
Desktop: WPF, Prism MVVM, HandyControl, WinForms, FastColoredTextBox, Costura/Fody
Reverse / Low-level: C, C++, ASM x86, DLL proxying, ABI, exports/ordinals, PE analysis, IDA Pro, OllyDbg, Ghidra, x32dbg
Game / Unity: Unity3D, HDRP, URP, VFX Graph, Zenject, Addressables, Photon Engine, object pooling, ECS approaches
Other languages: Python, Go, PHP, Shell/Bash, Qt, XSLT/XML, Elixir, Fortran77

R&D Version

This is the main HR/product-oriented resume. A fuller experimental version with the old GitHub design, diagrams, social blocks, and extended project catalog is preserved separately:

2026

Nikolai Dvurechensky - engineering resume

Hi, I'm Nikolai Dvurechensky Systems Engineer • .NET Developer • Reverse Engineer • Full Stack Engineer