Даніїл

Daniil Dieiev
Unity Developer | C# | Mobile Games | UI Systems | Live Product Updates
Krakow, Poland | Email: [відкрити контакти](див. вище в блоці «контактна інформація») | LinkedIn: Daniil Dieiev | Full-Time / B2B / Remote Contract

PROFESSIONAL SUMMARY
Unity Developer with 3+ years of commercial C# experience building mobile products for Google Play and App Store. Experienced in gameplay features, core mechanics, UI systems, debugging, production updates, release support, and live mobile products. Additional experience in .NET/C# software engineering, internal tools, Microsoft SSO authentication, and UAT testing.
CORE SKILLS
Programming
C#
Game Development
Unity, C#, OOP, Gameplay Programming, Core Mechanics, Progression Systems, Economy Systems, Idle/Tycoon Mechanics, Quest/Task Systems, Reward Systems, Unity UI, Canvas System, Responsive Mobile UI, DOTween, Particle Systems, ScriptableObjects, JSON, PlayerPrefs, Save System, Debugging, Bug Fixing.
Mobile Products
Mobile Application Development, Production Updates, Release Support, Debugging
Frameworks
.NET MAUI, ASP.NET Core API, Telerik UI
Databases
SQL, MySQL, PostgreSQL
Testing
UAT Testing, Manual Testing, Data Validation, Bug Reporting
Developer Tools
Git, Visual Studio, Jira, Figma, Excel
Project Tools
Jira, Trello, Notion, Slack, Microsoft Teams
AI Tools
ChatGPT, GitHub Copilot, Claude (basic usage)

EDUCATION
Taras Shevchenko National University of Kyiv, Ukraine
Bachelor's Degree in Software Engineering
ADDITIONAL EDUCATION
Robot Dreams - Certificate Unity Game Developer
PROFESSIONAL EXPERIENCE
Unity Developer
NeptuneX Game Studio | Kyiv, Ukraine/Office-Remote | 09/23 – 09/25
Project: Published Mobile Game
Product: Live mobile game published on Google Play.
Business goal: Build gameplay features, UI systems, and production updates for a live mobile product.
Responsibilities:
• Developed gameplay features, core mechanics, in-game logic, UI systems, and user-facing flows using Unity and C#.
• Worked extensively on UI implementation, visual improvements, interactive elements, and game screens.
• Collaborated with designers to implement UI elements and visual updates based on Figma designs.
• Supported debugging, feature polishing, release preparation, ongoing improvements, and production updates.
Results:
• Contributed to a live mobile product with 50,000+ downloads and advertising campaigns across multiple countries.
Game link: https://play.google.com/store/apps/details?id=com.aqal.partytycoon&pcampaignid=web_share
Tech stack: Unity, C#, Visual Studio, Git, Jira, Figma, Excel
Unity Developer
Fellow`s | Media Buying Team | iGaming | Kyiv, Ukraine/Remote | 03/23 - 09/23
Project: Unity-Based Mobile Applications
Product: Mobile applications for Google Play and App Store.
Business goal: Develop mobile app features, UI flows, application logic, and release updates for Android and iOS.
Responsibilities:
• Built and maintained Unity-based mobile application features using C#.
• Implemented UI screens, user flows, interactive elements, and core application logic.
• Fixed bugs, improved stability, and supported app updates for Android and iOS platforms.
Tech stack: Unity, C#, Visual Studio, Git, Figma, Excel
Unity Developer
Advertech | Kyiv, Ukraine/Office | 09/22 - 03/23
Project: Unity-Based Mobile Applications
Product: Mobile applications for Google Play and App Store.
Business goal: Gain hands-on commercial experience in Unity development, C# programming, UI implementation, and mobile app workflows.
Responsibilities:
• Developed mobile application features, UI elements, screens, and interactive flows.
• Worked with Unity components, application logic, visual assets, and bug fixing.
Tech stack: Unity, C#, Visual Studio, Git, Figma, Excel
Software Engineer (.NET/C# Internal Tools)
ZSky, Inc | US/Remote | 09/25 - Present
Project: Internal Metrics Platform & Mobile Access
Product: Internal corporate tools and mobile application for reviewing product metrics.
Business goal: Modernize internal workflows and create mobile access for company users.
Responsibilities:
• Developed an internal mobile application from scratch using .NET MAUI and C#.
• Modernized a legacy Telerik-based internal web application and improved mobile usability.
• Integrated Microsoft SSO authentication and worked with APIs, basic SQL-related tasks, Git, Docker, Jira, and Visual Studio.
• Supported UAT testing on a separate internal project by validating functionality and data accuracy.
Tech stack: C#, .NET MAUI, ASP.NET Core API, SQL, Telerik UI, Microsoft SSO, Docker, Git, Jira, Visual Studio
SOCIAL PROJECT & TUTORING
C# & Unity Instructor | GoITeens - IT Academy for teens and kids | Kyiv, Ukraine/Remote
• Taught C# programming and Unity fundamentals to teenagers, including programming basics, game logic, scripts, scenes, components, and UI basics.
• Guided one student group through the full learning program and practical Unity exercises.
Tech stack: C#, Unity, Visual Studio
LANGUAGES
English - Professional working proficiency | Ukrainian - Native/Bilingual | Polish - Elementary proficiency