career

OÜ Maining System LP (C# Developer)
2013 — 2021 (7 years 8 month)
Developed, optimized, and maintained various backend services from scratch using .NET Framework 4.5+ and .NET Core 3.1
Worked with JavaScript, TypeScript and Vue. Additionally had to debug and patch minifiedJavaScript. As part of an R&D project, there were experiments with the Phaser game engine, which involved writing a few shaders.
Over the past year, focused on breaking down a monolith and migrating its parts to a microservice architecture with Docker
Also worked on building a custom blockchain for transparent transaction storage. Had to modify the SixLabors ImageSharp library for fast image generation (creating GIFs with pre-calculated palettes for a Telegram bot). Participated in the integration of third-party payment systems and helped build a custom one.
FINAM (C# Developer)
2021 — 2023 (1 year 4 month)
Developed, optimized, and maintained internal document management services. Deconstructed a monolithic architecture by moving complex business logic into separate services. Built Docker-ready microservices following the Clean Architecture paradigm. Set up CI/CD pipelines for new services.
Identified memory leaks using a profiler, parallelized sequential execution of unrelated queries, and successfully fixed major issues in legacy code — including incorrect decimal serialization / deserialization and misuse of WebClient with potential deadlocks.
Designed microservice APIs with gRPC and implemented the backend side. Conducted code reviews, supported junior developers, and performed routine refactoring.
Kaluga Astral (Software Engineer)
2023 — 2023 (6 month)
Maintained the legacy backend of the company’s internal document management system built on .NET Framework.
Took part in breaking down the monolith and integrating new third-party encryption system under Linux instead of legacy Windows-dependent one, to achieve successful dockerization.
Implemented required features to integrate the system with services from other teams via RESTful APIs. Migrated part of the projects to a modern tech stack and set up-to-date CI/CD pipelines for them.
Coexwalf OU (Senior Software Engineer)
2024 — 2025 (1 year 6 month)
The main goal was breaking down a monolith and migrating it to dynamically loaded modules, without using Microsoft’s built-in solutions — due to the outdated codebase and strong dependencies on nonportable classes tied to .NET Framework and Windowssystem calls. We chose SimpleInjector for spawning instances, and I moved hardcoded module definitions out of code into declarative JSONstructures, deserialized from MongoDB records. This required rewriting part of the core entities in a more generalized form, which significantly sped up both the creation of new modules and the maintenance of existing ones.
Optimized code performance and memory allocations, making use of modern .NET Core features — particularly managedstackalloc and ref struct likeSpan<T> where applicable.
Discovered and fixed several critical security vulnerabilities. Significantly improved API performance, essentially by replacing synchronization primitives and optimizing database queries.
Suggested improvements to the existing Agile process that helped reduce repetitive workload for developers. This included extending the module system, which cut down on boilerplate code, automated common tasks, and enabled unit testing for critical code paths. These changes led to a noticeable improvement in performance metrics, according to management.
Supervised three junior developers, onboarding and mentoring them. Introduced key improvements to the documentation system and contributed to designing a new system architecture.

education

South Ural State University — Bachelor's Degree in System Analysis (2011)

Systems analysis is a job that requires skills such as critical thinking, problem-solving, and the ability to understand how the parts make up the whole. Systems analysis bachelor’s degrees are designed to provide you with these skills and set you up for a job in this field.

South Ural State University — Master's Degree in System Analysis (2013)

Every part of the modern world now relies on information systems for sustainable development. Computers and the Internet have evolved from luxuries to necessities. This presents numerous job opportunities in the systems analysis industry.

Various — Additional education

Every day, I discover something new. There are lots and lots of different books, articles, and lecture courses—you name it. I also complete several courses on Coursera and the like. It's a mundane challenge I am ready to vanquish.

projects

The Binding of Isaac (Flash)

Yet another attempt to finally make any sense in this atrocious codebase. One sane idea that should bring us to a spectacular result: TypeScript is a superset of ECMAScript, as well as ActionScript. Thus, we can expect a pretty seamless transcription of *.as to *.ts without any major quirks.

Originally, this game was written in ActionScript 2.0. I obtained my own copy of the game from Steam and decompiled it using JPEXS Free Flash Decompiler. The 20.0.0 version has made it easier to understand. I took the liberty to introduce a global scope by the name of _this.

Overall, it's quite painful and all. Anyway, the game's logic is situated in the 6765th sprite. Everything else comprises helper functions, animations, and menu logic. There have been some previous attempts to understand this codebase.

Peter the Rooster 2 (Pekka Kana 2)

This is an attempt to translate and organize the original source code of the 2D platfromer game, Pekka Kana 2, originally written by Janne Kivilahti from Piste Gamez. The vanilla source code was written in Finnish (sic!), using quite dated C/C++ style using DirectDraw. My original goal is to rename all of Finnish words (including comments) and be able to compile it without any quirks.

Personal site pryk.in

I've tried React, Next.js, and other similar technologies. Creating a responsive design was challenging, but I managed to complete it and deploy it on AWS. The static files are stored in S3, and the backend consists of two Lambdas: SSR and image optimizations. I have some other plans in the works. Currently, I'm trying to implement authorization with JWT, using AWS Cognito. After that, I will be able to develop a blog engine and finally populate it with the other content I wrote some time ago.

career

education

projects

That's all, thanks! :3