Available to hire
Hi, I’m Ivaylo Palchev, a Senior Unity Developer based in Sofia, Bulgaria, with 10+ years of experience shipping games and interactive products for indie studios, larger studios, enterprises, and Fortune 500 clients. I design scalable architectures and optimize performance across mobile, PC, consoles (PlayStation, Xbox, Nintendo Switch), WebGL, and XR platforms (Meta Quest, Apple Vision Pro). I write clean, maintainable code and craft engaging player experiences that deliver measurable business results.
In cross‑functional teams I lead architecture decisions, collaborate on tooling and pipelines, and deliver high‑quality, cross‑platform experiences. I enjoy turning ideas into polished products, mentoring teammates, and continually improving performance, stability, and user experience.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Language
Bulgarian
Fluent
English
Fluent
Work Experience
Senior Unity Developer at TheBetter Platform
August 1, 2024 - PresentMigrated 40+ casino slot games from PixiJS to Unity by designing a shared-core pipeline architecture, reducing development time by 30% while improving performance, maintainability, and cross‑platform support. Developed Unity-based slot games with richer visuals, animations, and advanced bonus mechanics. Collaborated with a 20‑person team to standardize tooling and coding practices.
Senior Unity Developer at TheBetterPlatform
August 1, 2024 - PresentMigrated 40+ casino slot games from PixiJS to Unity by designing a shared core pipeline architecture, cutting development time by 30% while improving performance, maintainability, and cross-platform support. Developed new Unity-based slot games featuring richer visuals, animations, and advanced bonus mechanics. Collaborated with a 20-person team, contributing to shared tooling and cross-team code standards.
Unity Developer at TheBetterPlatform
August 1, 2024 - November 8, 2025Migrated 40+ casino slot games from PixiJS to Unity by building a shared-core pipeline architecture, cutting development time by 30% and improving performance, maintainability, and cross-platform support. Developed new Unity-based slot games with richer visuals, animations, and advanced features.
Unity Developer at Wispwood Games
June 1, 2024 - June 1, 2024Maintained and expanded a 2D RPG with 1M+ downloads and 100k active users on Android/iOS. Integrated Cloud Save across devices, driving a 15% increase in retention and optimized memory usage and frame stability, improving average session length by 10%.
Freelance Unity Developer at Wispwood Games
March 1, 2024 - June 30, 2024Maintained and expanded a 2D RPG with 1M+ downloads and 100K active users on Android/iOS. Integrated Cloud Save across devices, driving a 15% increase in player retention. Optimized memory usage and frame stability, improving average session length.
Unity Developer at Sanofi
March 1, 2024 - March 1, 2024Built 4 interactive Unity-based presentations for Sanofi’s AI showcase at Vivatech. One was developed and ported for Meta Quest and Apple Vision Pro, delivering polished corporate-ready experiences for a Fortune 500 audience.
Contract Unity Developer at Sanofi
February 1, 2024 - March 31, 2024Built 4 interactive Unity-based presentations for Sanofi’s AI showcase at VivaTech, delivering polished corporate-ready experiences. Ported content to Meta Quest and Apple Vision Pro, demonstrating cross‑platform XR capabilities using OpenXR and ARKit.
Unity Developer at Sanofi (Fortune 500)
February 1, 2024 - March 1, 2024Built 4 interactive Unity-based presentations for Sanofi's AI showcase at Viva Tech, delivering polished corporate-ready experiences. Ported one presentation to Meta Quest and Apple Vision Pro, demonstrating cross-platform XR capabilities using OpenXR and ARKit.
Senior Unity Developer at Novos
January 31, 2024 - January 31, 2024Implemented new gameplay features, optimized existing code, improved UI responsiveness, and managed testing, code reviews, and deployments. Boosted user engagement by 20% and game performance by 40%.
Senior Unity Developer at Novos
January 1, 2024 - January 1, 2024Implemented new gameplay features and optimized existing code. Improved UI responsiveness and managed testing, code reviews, and deployments. Boosted user engagement by 20% and game performance by 40%.
Senior Unity Developer at Novos
February 1, 2023 - January 31, 2024Delivered 10+ gameplay features, UI implementations, and polished animations for a match-3 mobile game with a cartoony art style. Optimized performance and memory usage to support a growing user base.
Unity Developer at Novos
February 1, 2023 - January 1, 2024Delivered 10+ gameplay features, UI implementations, and polished animations for a match-3 mobile game with a cartoon art style. Optimized existing systems and improved UI responsiveness to enhance game performance and player experience.
Senior Unity Developer at Magicyard
December 31, 2022 - December 31, 2022Established scalable project architecture, supporting real-time multiplayer features using WebSockets. Collaborated with game designer Richard Garfield to integrate card gameplay systems. Integrated UI and gameplay features with artists.
Senior Unity Developer at Magicyard
December 1, 2022 - December 1, 2022Established scalable project architecture, supporting real-time multiplayer features using WebSockets. Collaborated with acclaimed game designer Richard Garfield to integrate card gameplay systems. Integrated UI and gameplay features with artists.
Senior Unity Developer at Magic Yard
July 1, 2022 - December 31, 2022Designed scalable project architecture supporting stateful multiplayer networking via WebSockets. Led core gameplay systems, animation integration, and networked features in a multi‑platform project.
Unity Developer at Magic Yard
July 1, 2022 - December 1, 2022Designed scalable project architecture supporting stateful multi-layer networking via WebSockets. Collaborated with acclaimed game designer Richard Garfield to implement card-based gameplay systems. Joined as the first developer, building the game architecture, networking layer, and Spine animation integration from scratch.
Freelance Unity Developer at Multiple Clients (via Upwork & Direct)
July 1, 2022 - June 30, 2024Freelance Unity Developer for 20+ projects across Upwork and direct clients; delivered mobile, PC, and XR work with emphasis on gameplay, performance, and cross-platform compatibility.
Senior Game Developer at The Sixth Hammer
June 30, 2022 - June 30, 2022Led project architecture, designing scalable and efficient systems across PC/Xbox/PS/Switch. Implemented core systems, gameplay mechanics, animations, and UI integration. Optimized performance, handled porting, and conducted bug fixing.
Senior Game Developer at The Sixth Hammer
June 1, 2022 - June 1, 2022Led project architecture, designing scalable and efficient systems from the ground up. Implemented core systems, gameplay mechanics, animations, and UI integration for multiple platforms (PC/Xbox/PS/Switch). Optimized performance, handled porting, and conducted bug fixing.
Lead Unity Developer at The Sixth Hammer
April 1, 2017 - June 30, 2022Led project architecture from the ground up for a 5‑person indie studio. Shipped Moo Lander — a 2D Metroidvania action‑adventure released on PC, PlayStation, Xbox, and Nintendo Switch; achieved 87% positive on Steam and featured launch trailer.
Core Game Developer at The Sixth Hammer
April 1, 2017 - June 1, 2022Core developer in a 5-person indie studio. Shipped Moo Lander, a 2D Metroidvania action-adventure released on PC, PlayStation, Xbox, and Nintendo Switch (87% positive on Steam; launch trailer featured on IGN). Led project architecture from the ground up, designing scalable and efficient systems for a multi-platform release. Implemented core gameplay mechanics, animations (Spine, DOTween), UI, and local multiplayer (up to 4 players). Optimized performance with Addressables and Sprite Atlases; reduced memory footprint for console targets. Handled full porting to Nintendo Switch with platform-specific optimization and certification.
Indie Game Developer at Self Employed
January 31, 2017 - January 31, 2017Developed 20+ mobile games, reaching 150k+ downloads.
Indie Game Developer at Self Employed
January 1, 2017 - January 1, 2017Developed 20+ mobile games, reaching 150k+ downloads.
Independent Game Developer at Self-Employed
February 1, 2014 - January 31, 2017Developed and published 20+ mobile games, reaching 150K+ combined downloads. Managed full development lifecycle: design, programming, art integration, testing and deployment.
Independent Game Developer at Self-Employed / Indie Studio
February 1, 2014 - January 1, 2017Independent developer. Developed and published 20+ mobile games, reaching 150K+ combined downloads. Managed full development life cycle: design, programming, art integration, testing, and store deployment.
Education
Bachelor's in Informatics at Plovdiv University, Plovdiv
April 1, 2018 - April 1, 2022Informatics at Plovdiv University, Plovdiv
April 1, 2018 - April 1, 2022Qualifications
Industry Experience
Gaming, Software & Internet, Media & Entertainment, Professional Services, Other, Healthcare
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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