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Vadim
Unity developer
- Considering positions:
- Unity developer, .Net-програміст, Game developer, Разработчик мобильных приложений
- Age:
- 34 years
- City of residence:
- Dnipro
- Ready to work:
- Remote
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Vadym Semko
Unity Developer
Ukraine, Dnipro • [open contact info ](look above in the "contact info" section) • contra.com/RoninDvlpr • github.com/RoninDvlpr
PROFESSIONAL SUMMARY
Adaptive Unity Developer with 7 years of experience in full-cycle mobile game development.
Proficient in C# and SOLID principles, having delivered 30+ projects ranging from rapid
prototypes to full commercial releases. Seeking to apply established expertise while expanding
into broader technical feature sets and new domains.
CORE COMPETENCIES
Engine & Languages: Unity, C# / .NET.
Architecture: OOP, SOLID, Design Patterns, Event-driven & Data-driven approaches, Code
Refactoring, Reusable module creation.
Physics & Simulation: 2D/3D Dynamics & Kinematics, Joints & Effectors, Spatial Queries
(Raycasts/Overlaps), Collision Matrix Optimization, Character & Vehicle Controllers.
Animation & VFX: DOTween, Unity Animator, 3D Humanoid Animations Integration, Spine &
DragonBones Integration, Particle Systems.
UI & UX: Adaptive UI (uGUI), Editor Scripting (IMGUI), Unity Input System.
Backend & Multiplayer: Photon (Turn-based), PlayFab (Matchmaking, User Data Persistence),
OpenAI API, Google Play Services, Custom APIs, Cryptography (BouncyCastle).
Services Integration: Analytics (Firebase/Unity Analytics/GameAnalytics), Advertising
(AdMob/Unity Ads), IAP.
Distribution & Content Delivery: Android/iOS Deployment & Store Compliance (including
GDPR/COPPA), Cross-Platform Builds (PC, WebGL), Addressables.
Tools: Git (GitHub/GitLab), AI Assistants (GitHub Copilot, ChatGPT, Gemini), JIRA, Adventure
Creator, Adobe Illustrator, Photoshop.
Additional Skills: Systems Game Design.
PROFESSIONAL EXPERIENCE
Unity Developer | Orion Gaming World | October 2024 - December 2025
Acted as the primary developer responsible for the full lifecycle of mobile titles for a small-scale
studio.
Shipped a mobile (iOS/Android) title for children, managing everything from core loops to UI
systems.
Ensured full GDPR & COPPA compliance for data collection, meeting strict Google Play
requirements for children-directed games via filtered advertising and privacy protocols.
Integrated Spine animations with synchronized body-part colliders for precise gameplay
interaction.
Implemented Adaptive UI to ensure visual consistency across various devices' aspect ratios.
Unity Game Developer (Freelance/Consultant) | January 2026 - Present & May 2019 -
September 2024
Operated as a full-cycle developer for international clients, delivering 30+ functional prototypes
and MVP products.
Rapid Prototyping: Translated abstract game design concepts into playable MVPs for various
genres, focusing on clean, modular code for ease of scalability.
SDK Integration: Integrated an array of third-party SDKs for analytics, monetization, social
sharing, and multiplayer functionality (Photon, Playfab).
Consultation: Consulted non-technical clients, helping define project scopes and feature sets.
Provided game design insights, refining gameplay balance and UX flow to improve player
retention for client projects.
Leadership: Acted as the primary technical stakeholder, mentoring a junior developer and
ensuring code quality through peer code reviews and architectural guidance.
SELECTED PROJECTS
Gameplay videos and live builds for the projects below are available at: contra.com/RoninDvlpr
Dice Hero | Mobile dice-poker and auto-battler hybrid
● Engineered a system of interconnected core (dice poker, auto-battler) and meta
(CCG-style characters, squad management) mechanics from first iteration to commercial
launch.
● Oversaw the implementation of the live monetization store by a junior developer.
Dancing Animals | Mobile kids’ educational game
● Developed core gameplay loops, refactored components to improve stability and support
new features, and integrated Spine animations with dynamic physics colliders.
● Navigated complex mobile store privacy compliance to successfully publish a
directed-at-children application.
Life Tower | Mobile/WebGL adaptation of the work-life balance tabletop game
● Delivered the educational project in accordance with the Estonian Gender Equality
Commissioner’s Office requirements.
● Implemented classroom social multiplayer mechanics using PlayFab.
EDUCATION
Master's Degree in Information Security and Systems Engineering | Dnipro National
University | 2014
Unity Developer
Ukraine, Dnipro • [
PROFESSIONAL SUMMARY
Adaptive Unity Developer with 7 years of experience in full-cycle mobile game development.
Proficient in C# and SOLID principles, having delivered 30+ projects ranging from rapid
prototypes to full commercial releases. Seeking to apply established expertise while expanding
into broader technical feature sets and new domains.
CORE COMPETENCIES
Engine & Languages: Unity, C# / .NET.
Architecture: OOP, SOLID, Design Patterns, Event-driven & Data-driven approaches, Code
Refactoring, Reusable module creation.
Physics & Simulation: 2D/3D Dynamics & Kinematics, Joints & Effectors, Spatial Queries
(Raycasts/Overlaps), Collision Matrix Optimization, Character & Vehicle Controllers.
Animation & VFX: DOTween, Unity Animator, 3D Humanoid Animations Integration, Spine &
DragonBones Integration, Particle Systems.
UI & UX: Adaptive UI (uGUI), Editor Scripting (IMGUI), Unity Input System.
Backend & Multiplayer: Photon (Turn-based), PlayFab (Matchmaking, User Data Persistence),
OpenAI API, Google Play Services, Custom APIs, Cryptography (BouncyCastle).
Services Integration: Analytics (Firebase/Unity Analytics/GameAnalytics), Advertising
(AdMob/Unity Ads), IAP.
Distribution & Content Delivery: Android/iOS Deployment & Store Compliance (including
GDPR/COPPA), Cross-Platform Builds (PC, WebGL), Addressables.
Tools: Git (GitHub/GitLab), AI Assistants (GitHub Copilot, ChatGPT, Gemini), JIRA, Adventure
Creator, Adobe Illustrator, Photoshop.
Additional Skills: Systems Game Design.
PROFESSIONAL EXPERIENCE
Unity Developer | Orion Gaming World | October 2024 - December 2025
Acted as the primary developer responsible for the full lifecycle of mobile titles for a small-scale
studio.
Shipped a mobile (iOS/Android) title for children, managing everything from core loops to UI
systems.
Ensured full GDPR & COPPA compliance for data collection, meeting strict Google Play
requirements for children-directed games via filtered advertising and privacy protocols.
Integrated Spine animations with synchronized body-part colliders for precise gameplay
interaction.
Implemented Adaptive UI to ensure visual consistency across various devices' aspect ratios.
Unity Game Developer (Freelance/Consultant) | January 2026 - Present & May 2019 -
September 2024
Operated as a full-cycle developer for international clients, delivering 30+ functional prototypes
and MVP products.
Rapid Prototyping: Translated abstract game design concepts into playable MVPs for various
genres, focusing on clean, modular code for ease of scalability.
SDK Integration: Integrated an array of third-party SDKs for analytics, monetization, social
sharing, and multiplayer functionality (Photon, Playfab).
Consultation: Consulted non-technical clients, helping define project scopes and feature sets.
Provided game design insights, refining gameplay balance and UX flow to improve player
retention for client projects.
Leadership: Acted as the primary technical stakeholder, mentoring a junior developer and
ensuring code quality through peer code reviews and architectural guidance.
SELECTED PROJECTS
Gameplay videos and live builds for the projects below are available at: contra.com/RoninDvlpr
Dice Hero | Mobile dice-poker and auto-battler hybrid
● Engineered a system of interconnected core (dice poker, auto-battler) and meta
(CCG-style characters, squad management) mechanics from first iteration to commercial
launch.
● Oversaw the implementation of the live monetization store by a junior developer.
Dancing Animals | Mobile kids’ educational game
● Developed core gameplay loops, refactored components to improve stability and support
new features, and integrated Spine animations with dynamic physics colliders.
● Navigated complex mobile store privacy compliance to successfully publish a
directed-at-children application.
Life Tower | Mobile/WebGL adaptation of the work-life balance tabletop game
● Delivered the educational project in accordance with the Estonian Gender Equality
Commissioner’s Office requirements.
● Implemented classroom social multiplayer mechanics using PlayFab.
EDUCATION
Master's Degree in Information Security and Systems Engineering | Dnipro National
University | 2014
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The candidate's resume is posted at https://www.work.ua/resumes/19104456/