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Registration: 13.08.2026

Alexander Kovalchuk

Specialization: Unity 2D Developer / C# Developer
— Specializes in Unity 2D game development using C# and SOLID/DRY principles. — Creates game prototypes from initial concept to a fully playable game loop. — Maintains development documentation in Notion. — Experience with animations via Spine 2D, AI asset generation with ComfyUI, and localization via Google Sheets API.
— Specializes in Unity 2D game development using C# and SOLID/DRY principles. — Creates game prototypes from initial concept to a fully playable game loop. — Maintains development documentation in Notion. — Experience with animations via Spine 2D, AI asset generation with ComfyUI, and localization via Google Sheets API.

Skills

Unity
Unity 2D
C#
SOLID
ScriptableObject
Spine 2D
Git
OOP
Game Development
ComfyUI
Google Sheets API
Notion
2D Platformer
DRY
Prototype Development

Work experience

Frontend Developer
01.2021 - 01.2023 |Cargofy
HTML, CSS, JavaScript
● Developed and maintained web interfaces for the platform. ● Collaborated in a team environment on assigned tasks. ● Wrote clean, maintainable code. ● Participated in task planning and sprint reviews.
Unity 2D Developer
2024 - 2025 |Outrider 9
Unity, C#, Spine 2D
● Implemented the full gameplay loop for a 2D platformer (published on itch.io). ● Created movement, jumping, and combat systems. ● Built code architecture following SOLID principles. ● Set up UI, scene transitions, and save system. ● Implemented enemies, damage logic, and interactions. ● Added Spine-based animations. ● Prepared builds and published the project.
Unity 2D Developer
since 2025 - Till the present day |Under One Sigil
Unity, C#, Google Sheets API, ComfyUI
● Developing a 2D game with three core scenes: main menu, world map, and match-3 combat. ● Designed architecture for scalable content expansion. ● Implemented localization system via Google Sheets API. ● Integrated local ComfyUI pipelines for AI-based asset generation. ● Maintained design document with mechanics, diagrams, and structure.

Languages

RussianNativeUkrainianNativeEnglishAdvanced