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

Available for strong teams

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

Organizations · Experience · Stack · Utilities · Focus

System Profile

••• booting profile…▸
- [ ◇ ] Identity…▸ Nikolai Dvurechensky
- [ ◇ ] Started…▸ Reverse engineering online games
- [ ◇ ] Experience…▸ Since 2014
- [ ◇ ] Focus…▸ Systems / Reverse / Full Stack
- [ ◇ ] Platforms…▸ Linux / Windows / Web / Unity
- [ ◇ ] Status…▸ Available for strong teams
- [ ✓ ] Contact…▸ dvurechenskysoft@gmail.com ◇ nikolay@dvurechensky.pro
- [ ✓ ] Website…▸ dvurechensky.pro
- [ ✓ ] ORCID…▸ orcid.org

Organizations

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◇ Organizations · GitHub (6)

graph TD
  A[Dvurechensky Organizations] --> B[Docs]
  A --> E[Tools]
  A --> M[Templates]
  A --> G[Test Tasks]
  A --> H[Unifier]
  A --> K[Lizerium]

⌁ Project	⌁ Description
Dvurechensky Docs	My developments or extremely useful forks of documentation necessary for daily development.
Dvurechensky Tools	Programs and utilities that I modified or created from scratch, useful in different areas.
Dvurechensky Test Tasks	My register of test tasks completed by me free of charge.
Dvurechensky Templates	My templates for creating projects.
Lizerium	Here are collected utilities for the game Freelancer, created or recreated by Dvurechensky, projects - Freelancer Lizerium Unity and modification of Freelancer.
Unifier of Systems	Unifying services and technology.

Organization	Stars
Lizerium
Dvurechensky Tools
Dvurechensky Docs
Dvurechensky Test Tasks

Experience

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◇ View Experience

OXSIONSOFT, Lizerium
(Mar 2021 – 2026, 5+ years)

Unity Developer

Worked on Ceek Virtual Reality project: feature development, bug fixing, UI redesigns
Implemented memory optimization via Addressables → stable performance on Android 7+
Delivered 3+ major UI evolutions, multiplayer on Photon Engine, client-server API improvements
Wrote technical specifications, collaborated across teams
Stack: Unity3D, HDRP, VFX Graph, Zenject, Addressables, Blender, Substance, Photoshop, Docker, Photon Engine

Moscow Institute of Psychoanalysis (MIP)
(Feb 2020 – Present, 6+ years)

Technical Specialist

Provided technical support for online video platform (MTS-Link)
Helped 1000+ users of any age/device join live broadcasts
Stack: Windows, MacOS

NPC Reagent / SIGMA / CMK Consulting
(2019 – 2025, 5+ years total)

.NET Developer

Built ASP.NET Core MVC apps with PostgreSQL, EF Core, RabbitMQ
Developed visualization systems for C# / C++ projects and dependencies (NuGet)
Migrated projects across .NET Framework → .NET 6/7/8, applied SOLID, DRY, KISS principles
Designed pentest monitoring system (data collection, visualization, analytics)
Deployed microservices in Docker, automated builds with Jenkins
Stack: C#, ASP.NET Core (6–8), PostgreSQL, RabbitMQ, EF Core, Cytoscape.js, Three.js, Docker, Jenkins, Git, SVN

Freelancer Rebirth
(Nov 2020 – Nov 2023, 3 years)

C++ Developer

Maintained the largest CIS mod for Freelancer (2003)
Migrated 25+ plugins & core into unified C++ solution
Performed 3 major project migrations across Visual Studio generations
Stack: C++, Boost, Assembler, Git

InterEVM & CITIS
(Feb 2020 – Jun 2023, 3+ years)

System Engineer

Developed monitoring systems (Qt) and data analyzers (Python, PHP)
Built XSLT templates, optimized PostgreSQL queries
Worked with Astra Linux, Ubuntu, Debian, Windows environments
Stack: Linux (Astra, Ubuntu, Debian), Qt, Python, SQL, XSLT/XML

Other Roles
(2017 – 2020)

Promelektronika — Automation engineer: Siemens controllers, SCADA, embedded systems
YurExpert — SysAdmin: workplace automation, document automation

Tech Stack

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◇ Open Tech Stack

◆ Core Engineering

C#, .NET 3–8, ASP.NET Core (MVC, SignalR), EF Core, Systems Design, Full Stack Development, Reverse Engineering

◆ Backend & Infrastructure

RabbitMQ, Redis, PostgreSQL, SQL Server, MySQL, Docker, Jenkins, nginx, Linux (Astra / Ubuntu / Debian / Kali / Parrot OS), Git, SVN, Gitea

◆ Frontend & Desktop UI

TypeScript, Cytoscape.js, Three.js, Webpack, Grunt, Prism (MVVM WPF), HandyControl (WPF), HTML5, SCSS/CSS, Markdown

◆ Game Development

Unity (HDRP / URP), Zenject, Addressables, Photon, Object Pooling, ECS (Leo / Unity / Custom), Blender, Substance Painter, Photoshop

◆ Languages & Low-Level

Python, Go, PHP, C, C++, C#, ASM x86, Shell, Bash, Qt, Boost, Elixir, Fortran77

◆ Testing & Diagnostics

xUnit, nUnit, Integration Testing, IDA Pro, OllyDbg, Burp Suite Pro

Utilities

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◇ Most important · jobs (11)

◇ Most important · jobs

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graph TD
  B[Most important jobs]
  B --> B1[Unifier]
  B --> B2[Shields.io]
  B --> B3[Heradotus]
  B --> B4[FileSyncSentinel]
  B --> E[Lizerium]
  E --> E1[Lizerium Server]
  E --> E2[Freelancer Lizerium]
  E --> E3[Lizerium Portal]
  B --> G[Reverse]
  G --> G1[ReverseProxyDLL]
  G --> G2[Freelancer.Reverse.Runtime]
  G --> G3[BinNexus]

⌁ Project	⌁ Description	Lang
BinNexus	BinNexus is a tool for analyzing `Windows binaries (DLL/EXE)` that builds an `interactive web portal` with a `dependency graph` and `export exploration`.	`Python · JavaScript · CSS · HTML · C++`
ReverseProxyDLL	`Reverse-aware proxy DLL framework generator` for `legacy x86 Windows binaries` based on `export dumps` and `decompiler output`.	`Python · C++`
Freelancer.Reverse.Runtime	I'm building a `runtime layer` on top of `Freelancer (2003)`, restoring and overriding `system DLLs` to safely `explore`, `extend`, and `document` the behavior of the original engine.	`C · C++ · Batchfile · Asm x86 · Ghidra · x32dbg`
Lizerium Portal	My developed portal for a `space` `simulator` — this is a huge portal for the game with a knowledge base about the game `Freelancer (2003)`.	`ASP Net Core 6.0 · MVC · TypeScript · EF Core`
Freelancer Lizerium	My developed `space` `simulator` — this is my game in the `space simulators` genre based on `Freelancer (2003)` (Multiplayer and single player modes).	`C++ · Assembler x86`
Lizerium Server \| GS4u.net - Game Server Monitoring	My developed server for the `space` `simulator` Freelancer Lizerium — this is a huge expansion that consists of 50+ plugins importing new functions into the gameplay.	`C++ · Asm x86`
Lizerium Steam	My developed `game loader` for the Freelancer series — this is technically the well-known `Steam` in its `behavior` and it can `port` and `update` what's inside it and `itself`.	`WPF · Prism MVVM · Handy Control`
Heradotus	Your `scenario` `constructor` for presentations and demonstrations. For developers who understand `Markdown`.	`WPF · Prism MVVM · Handy Control`
FileSyncSentinel	Powerful real-time file change `monitoring` with intelligent `comparison` 🔍.	`WinForms · MVC · DiffPlex · NET 8.0`
Russian Shields.io	Beautiful badge generator in Russian language.	`JS/TS · Canvas / WebGL · Node JS · Redis`
Unifier	Registered software system for distributed device interaction and infrastructure orchestration.📄 Patent	`JS/TS · NET 8.0 · Tree JS · Rabbit MQ · PostgreSQL`

◇ Internet portals · from me (14)

◇ Miscellaneous · GitHub

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graph TD
  C[Miscellaneous online portals]
  C --> R[Project Based Learning]
  C --> M[API List]
  C --> G[Gitignore Portal]
  C --> L[Frontend - develop]

⌁ Project	⌁ Description
Project Based Learning	Links to resources by programming language categories for learning
API List	Catalog of open APIs by categories
Gitignore Portal	Collection of ready `.gitignore` files + technology overview
Frontend - develop	A continuously expanded list of frameworks, libraries and tools I used/want to use for building things on the web. Mostly `Javascript` stuff.

◇ Markdown · GitHub

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graph TD
  C[Markdown online portals]
  C --> H[Markdown]
  H --> K[Fundamentals]
  H --> L[All about emoji]
  H --> Z[Shields badges]
  H --> X[Text colors with MathJax]
  H --> V[Mathematics]

⌁ Project	⌁ Description
Markdown Docs	Complete Markdown guide with lifehacks
Emoji in Markdown	Emoji collection
Shields Badges List	Collection of Shields badges
Text Colors via MathJax	Examples of colored text
Mathematics in Markdown	Example implementation of mathematical formulas

◇ C# · GitHub

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graph TD
  C[C# online portals]
  C --> N[C#]
  N --> N1[Base. Patterns. Principles.]
  N --> N2[Patterns - addition]
  N --> N3[Logic]
  N --> N4[Interview]

⌁ Project	⌁ Description
Analysis of the C# programming language.	Overview of the C# programming language functionality, problem solving.
Design Patterns. OOP. Testing. C# Collections.	Fundamentals of object-oriented programming, as well as programming patterns in C# with examples of their implementation, testing, explanation of principles and solving LeetCode problems.
Patterns (addition) C#	Samples, templates, programming schemes in C# with examples of their implementation
Interview Questions on C# (NET)	Overview of questions on the C# programming language and .NET technology

◇ C++ · GitHub

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graph TD
  C[C++ online portals]
  C --> W[C++]
  C --> W1[Fundamentals]

⌁ Project	⌁ Description
Analysis 🚏 of the C++ programming language.	Overview of the C++ programming language functionality, problem solving.

◇ Templates (3)

◇ Templates

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graph TD
  C[Templates]
  C --> W[Telegram Bot]
  C --> W1[NET Core MVC]
  C --> W2[Electron & Vue3 & Vite App]

⌁ Project	⌁ Description
Telegram Bot 🚏 Template.	Clean, multi-layered architecture. Easy to scale and add new teams / services.
Net Core 🚏 Template.	ASP.NET Core MVC, Frontend Project Template - TypeScript
Electron & Vue3 & Vite 🚏 Template.	A Vue3 + Vite + Electron project template based on Vite and Rollup. An alternative platformer for producing cross-platform applications.