My programming portfolio
Highlights of my career as a Unity Engineer with over 6 years of experience in the industry

Unity Developer (2022-2024)
Subpixel - SLIPSTREAM
One of a kind 2D realtime multiplayer game between Twitch streamers and viewers where players operate a spaceship, fight aliens and explore the galaxy with up to 150+ players per session!
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My responsibilities:
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Development and architecture design of gameplay and meta mechanics
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Work with a custom made highly optimized multiplayer API
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To create interactive and optimized UI with zoom, parallax effects and animations
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State machines integration
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Create simulated network environments for tutorials to save cost on server requests
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Device specific optimizations (mobile and PC)
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Analytics integration
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Develop dialog managers like prompts, tooltips and loading panels

Lead Unity Developer (2024-2025)
Revolutionary Concepts - Gesundheit!
The awarded and beloved 2D puzzle adventure game is back to modern consoles and iOS in higher resolution and with unique quality of life features! (Coming soon)
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My responsibilities leading the port to Unity:
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Lead the architecture and systems design of gameplay, monster AI and general logic
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Implement cross-platform input: touch, controller, keyboard
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Create level design and animation tools for faster development
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Object pooling tools and addressables implementation
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Optimization for multiple devices (PC, Console, Mobile)
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Design the physics and movement mechanics
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Create vector and rotation math helper/extension tools
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Develop dynamic 2D shadow system
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Reimplement animations and assets in 4K
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Lead other developers into sprints
Simultaneously, we brought back to life the iOS project in Objective-C, where I got to:
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Code XML tools to update UI and level design
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Solve bugs and implement quality of life features
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Reimplement broken features and clean up the codebase
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Adapt and launch to TvOS, iOS and iPadOS
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Implemented an automatic build pipeline with XCode

Unity Developer (2021)
CI-VS: Virtual Sports - Winner's Circle
The ultimate Casino Horse Racing Simulation game, available at the grandest casinos in Las Vegas: MGM, Bellagio, Caesars Palace and more. Now with a mobile companion app.
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What I contributed:
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An Auto Updater tool to refresh the builds, config files and asset bundles of all the casino NUCs with the latest
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Amazon Web Services integration to store static data and heavy assets
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Designed a "replay" tool where players see the last moments of a race in slow motion
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Developed tools to retrieve HD footage for Marketing
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UI, gameplay and general programming

Unity Developer (2019-2021)
Cosmogonia Caótica - Luli & Gabo
3D Edutainment App for Kids based on the successful web show Luli & Gabo, with fun educational mini games about taking care of oneself at home, interactive sticker albums, full episodes of the show and more.
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My job:
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Rebuild from the ground up the systems and architecture of the game for optimization
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Design and develop various mini games
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Implement remote and async addressable assets loading
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Playfab backend integration
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Android and iOS native photo selection implementation
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Added a custom youtube player where users can see the episodes of the show

Unity Developer/Build Engineer (2019-2021)
Cosmogonia Caótica - BitUp
A unique Cubist-Impressionist style 2.5D Action Adventure Metroidvania game full of mysteries and exploration. ​
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My responsibilities:
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Ensure correct deliverance of the build pipeline for multiple platforms
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Supervise the testing pipeline
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Fix build specific errors, like for TvOS and PS4
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General Gameplay and UI development

Unity Developer (2025)
Big Frog Studios - Wizard Cats
Craft limitless AI generated spells against hordes of enemies in this unique rogue-like 2D game now available for wishlist in Steam.
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My responsibilities:
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Develop bosses, mini bosses, enemy characters and their state machines
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Develop unique spell functionalities
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Create dynamic and scalable UI
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Camera tools for dynamic level boundaries
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Integrate complex animations
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Solve and debug intricate errors
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Create positioning validation tools for dozens of characters spawning at once in constrained map areas
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Tools for QA to allow rapid testing
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Analytics integration

Unity Developer (2021)
Amber Studio & Behavior Interactive - VNYE 2021
A virtual multiplayer experience where users gather around for New York's iconic New Year's Eve celebration and see the iconic ball drop, play mini games, buy sponsored outfits and connect with others. "one times square" was the client behind this project.
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My tasks included:
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Ensure the ball drop timers are set correctly for ALL timezones
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Mini games gameplay development
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Outfit shop networking bug fixes
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Objectives and missions logic and UI integration
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Photon Pun development

Unity Developer (2022-2023)
Amber Studio & Unity Technologies - Insomniac Events Meta Verse
An interactive and immersive Metaverse experience where players interact with music festival enthusiasts and their favorite artists in live events full of music, games and plenty of sponsored customization options.
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What I contributed:
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A poolable chat UI​ with dynamic rect bubbles
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Mini games gameplay programming
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UI development for the PC and Mobile apps
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Bug fixing
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Photon Quantum development

Unity VR Developer (2019)
Cosmogonia Caótica - InterVR
Arcade archer VR project with unique archery mechanics and horde enemies made for Oculus and Meta Quest.
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What I did:
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Integrate Meta Quest
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Unique VR motions: archery pull and shoot
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Horde mechanics logic
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UI development with huge emphasis on UX: easy to read and accesible interfaces for VR

Unity Developer (2018-2019)
Self - Road to Cannon Hill
F2P 2.5D arcade game and passion project designed and programmed by me for iOS and Android.
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Some features include:
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Over 100 levels to complete
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A fully operational store with skins
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Advertisements
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Analytics
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Designed sprites and animations
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A very addictive gameplay inspired by Donkey Kong's barrel mechanic​​

Unity VR Developer (2019)
Freelance - Lord Birdy in the Hallway of Madness
Commissioned project by the popular horror Youtuber Lord Birdy. I pitched, designed and programmed the whole project, which became a F2P 2.5D Infinite arcade runner with unique twists and mechanics!
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Some cool features:
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Object pooling
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Infinite maze runner mechanics
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A functional shop
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Designed sprites and animations
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Popular game for a wide audience of fans

Unity Developer / Game Designer
Amber Studio - Blitzdroid
A fast-paced 3D Multiplayer Top-Down
Arcade game for mobile where players fight to push each other out of an interactive arena.
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A game I pitched and prototyped to Amber Studio. It earned recognition within the studio and got developed into a full deck that was presented to multiple clients.
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Some features of the prototype:
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Physics based gameplay
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Photon Pun development
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Multiplayer gameplay
Contact me: alfredoespinosan@outlook.com