Rostislav

Rostyslav Kulahin
About me:
With over four years of professional experience in mobile game and app development, I have successfully
completed more than 100 projects, accumulating over 20 million downloads. I specialize in game design,
analytics, and A/B testing, ensuring high-quality and engaging user experiences. My expertise extends
beyond development, as I also have a strong background in team management, fostering collaboration and
optimizing performance within cross-functional teams.
Personal
Technical Skills:
Languages: C#, JavaScript, TypeScript, Dart
Name Unity:
Rostyslav Kulahin
UI/UX: Creation of animated and responsive interfaces
Address Animations: Expertise with BlendTree and body part masks
Ukraine Physics: Development of physics-based gameplay
Phone number Tweens: Implementation of easing curves for smooth movement
[open contact info](look above in the "contact info" section) Cinemachine: Custom extensions for cinematic camera movements
SDKs: Integration with IronSource, AppLovin MAX, Luna, Facebook, Google Analytics, AppMetrica, etc.
Email
[open contact info](look above in the "contact info" section) Firebase:
Database: Handling large-scale databases
LinkedIn
Remote Config: Dynamic app configuration
[open contact info](look above in the "contact info" section)
Authentication & Security: User management and security rules
Functions (v1/v2): Cloud functions for server-side logic
Storage: Efficient file storage management
Dart:
Provider & GetX: State management frameworks for clean architecture
API Integration:
OpenAI: AI assistant integration
Midjourney + SwapFace: Realistic photo generation (e.g., facial transformations)
Cloud Vision: Image processing (e.g., license plate and VIN number recognition)

Personal Skills:
Strong communication skills and a collaborative team player
Iʼm always ready to respond whenever needed
Well-organized, reliable, and responsible

Work experience

Lead Unity/Flutter Developer Dec 2023 - Jan 2025
SDP Games, France, Lion (Remote)

Senior Unity Developer Oct 2022 - Sep 2023
Altplay, United Kingdom, London (Remote)

Lead Game Designer Feb 2022 - Oct 2022
Utin Computer, Slovakia, Bratislava (Remote)

Game Producer Sep 2021 - Feb 2022
GAMEPACK studio, Ukraine, Kyiv (Remote)

Unity Developer Nov 2020 - Jun 2021
24Play LLC, Ukraine, Kyiv

Unity Developer Dec 2019 - Nov 2020
Freelance UpWork, (Remote)

Education and Qualifications
Software architect Sep 2018 - May 2020
Ecole 42, Kyiv/Paris