I’m Leo, a game developer and founder of Causticbytes. I build multiplatform games, XR apps, custom APIs, AI experiences, and full-stack platforms for clients and agencies.
I have 3,000+ verified hours and $70k+ earned on Upwork , plus additional client work delivered through NDA-protected and private contracts that cannot be fully shown publicly.
A complete tower defense mobile game for iOS and Android, including gameplay systems, UI, progression, cloud saving, ad monetization, and in-app purchase integration.
Multiple WebGL games with crypto wallet integration, competitive leaderboards, tournament logic, and an admin dashboard to manage events, winners, prizes, and game operations.
An augmented reality tourism app for historical places, with location-based experiences and an admin site to manage sites, AR media, audio, video, media/images, and cultural content.
A child-friendly AI chatbot experience with configurable behavior, web-based interaction, and admin controls for adjusting content, personality, language, and interaction settings.
A collection of smaller mobile games and prototypes, including hypercasual experiments and tower defense concepts.
Beyond games, I have worked with my agency on full-stack applications such as Chattyfic , a story creation and sharing app with a moderation website, a US Embassy award-winning app focused on collecting trash and helping communities, a web editor for a Photobook creation site, and internal tools development and legacy systems support for Asdmedia
I combine Unity development with backend and product delivery. That means I can help with the gameplay or app experience, but also with the database, APIs, admin tools, cloud save, monetization, deployment, and long-term technical structure.
I can build early experiments quickly, then evolve them into production-ready systems with real users, data, monetization, and admin controls.
Unity, WebGL, mobile, XR, backend APIs, databases, AI and third party integrations
Through Causticbytes, I work with a small development team, allowing me to take on larger projects than a solo freelancer.
I’m used to long-term remote client work, technical explanations, progress updates, demos, and iterative delivery.
The exact stack depends on the project, but these are the areas I commonly work across.
Mobile games, WebGL games, AR apps, prototypes, production features, UI, gameplay systems, optimization, and deployment.
APIs, databases, user accounts, admin dashboards, leaderboards, tournaments, prizes, content management, and operational tools.
Reusable bases for AR tourism apps, WebGL game platforms, educational games, AI experiences, and custom interactive products.
Support for agencies that need Unity, AR, WebGL, backend, or interactive development capacity under a reliable technical partner.
I can help you turn it into a working product with the best coding practices and long-term technical support. You can contact me directly for freelance work, or reach out through Causticbytes for larger projects and agency partnerships.