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I help brands and agencies create HTML5 banner ads that pass Google Ads, Amazon DSP, and other ad platform requirements without issues. 15+ years of experience in animation and banner development. I deliver clean, optimized, and production-ready files — no rejections, no surprises. Platforms I’ve worked with: ✔ Google Ads (HTML5) ✔ Amazon DSP ✔ IAB standards ✔ Adform, Sizmek, DoubleClick (GWD) ✔ Custom ad networks and rich media platforms What I can do: ✔ HTML5 banner ads (all standard sizes) ✔ Interactive creatives (clickable elements, mini-games) ✔ Adobe Animate (CreateJS) and GSAP animations ✔ Flash/SWF to HTML5 conversion ✔ Fixing, optimizing, or rebuilding existing banners Why clients choose me: • I understand platform limitations, specs, and approval rules • Smooth, lightweight animations with size limits in mind • Fast turnaround and clear communication • Reliable results — ready to upload and launch If you need banners that actually work across different ad platforms — I can help.

🥇 Technical Lead at ServReality — Ranked Top 10 in AR/VR globally by Clutch! 🚀 With 15+ years in iOS, Android, and gaming, I bring full-cycle mobile and game development experience as a 💎 Mobile Solution Architect. 🎮 Senior Unity & Unreal AR/VR Developer with 12 years in immersive game creation — this isn’t just work, it’s passion. 🎯 I specialize in crafting AR/VR-powered games and mobile apps using Unity, Unreal, and Lumberyard to build immersive, interactive experiences. Here’s what I bring to the table: ✅ Mobile App Dev: iOS (Objective-C, Swift, Xcode), Android (Java, Gradle, Android Studio) ✅ AR: ARKit, ARCore, Vuforia, Wikitude, HoloLens, Meta 2, AR.js, Moverio ✅ VR: SteamVR, Oculus, Cardboard, Windows MR, Optitrack, Dexmo ✅ Game Engines: Unity3D, Unreal Engine, Lumberyard ✅ Art: Modeling, Texturing, Visualization ✅ Core Features: Group chat, voice/video calls, file sharing, real-time messaging, backend implementation ✅ AI & ML integration ✅ UI/UX design & testing for cross-platform apps In AR/VR, I work with tools like ARKit, ARCore, SteamVR, Oculus, and HoloLens to deliver engaging environments with features like gesture control, spatial mapping, haptics, and real-time rendering. My goal is to combine technical depth with creative precision — transforming visions into standout digital experiences. #AR #VR #MR #XR #GameDevelopment #MobileDevelopment #MobileApps #iOS #Android #Unity #Unreal #Lumberyard #ARKit #ARCore #Vuforia #Wikitude #HoloLens #Meta2 #Moverio #ARJS #SteamVR #Oculus #Cardboard #WindowsMixedReality #Optitrack #Dexmo #3DModeling #GameArt #Texturing #Visualization #RealtimeMessaging #VoiceChat #VideoCalling #FileSharing #AI #ArtificialIntelligence #MachineLearning #UIUX #BackendDev #GestureRecognition #SpatialComputing #CrossPlatform #MultiplayerVR #RoomScaleVR #ARGames #VRGames #InteractiveGameplay #ImmersiveExperiences #RealTimeRendering #GamePhysics #HapticFeedback #3DUX #VRUI #ARUI #VirtualStorytelling #AugmentedReality #VirtualReality #HeadMountedDisplays #SpatialMapping ⚡️ Updated portfolio on June 24, 2026

Roles: Senior Developer / Software Architect Programming Languages: C++, C#, C, Python, JavaScript, TypeScript, Rust Frameworks: WPF, Win32, Winforms, .NET Framework, .NET 5.0+ Domain Expertise: * Casino games ( Math Engine Development ) * Game Development, Optimization and Engine Enhancements * Desktop and Cross Platform Editor Applications ( Unity3D, GoDot, etc) * Loyalty Applications ( Backend NodeJS) * Camera Software ( Image Processing, Software tools) * Construction tools ( AutoCAD and AutoRevit Plugins)

Hi, I'm Uriel Romeo : ) I help companies solve technical problems, ship stalled projects, and build reliable software. Over 40 successful Upwork projects with a 100% Job Success score have taken me through a wide range of work: web applications, browser extensions, automations, integrations, debugging, legacy systems, and custom software development. My clients usually come to me when: • A project has become difficult to maintain • Requirements are unclear or still evolving • A feature needs to be shipped quickly and correctly • An automation or integration needs to be built from scratch • A technical issue has been blocking progress for too long I work comfortably across frontend, backend, and infrastructure, and I'm not tied to a specific framework or language. My focus is understanding the problem, planning a practical solution, and delivering something that works reliably in production. Technologies I commonly work with include React, Node.js, JavaScript/TypeScript, browser extensions, APIs, databases, automation tools, and modern web platforms. Clients value my communication, ability to work independently, and willingness to take ownership of difficult problems from start to finish. If you need a developer who can quickly understand a project, reduce technical friction, and keep things moving forward, I'd be glad to discuss your project.

I build mobile apps, SaaS platforms, and games that are fast, scalable, and easy to maintain — not quick fixes that break down later. I work with startups, founders, and agencies who need a reliable technical partner to turn an idea into a working product, redesign an existing app, or fix issues in a live application. WHAT I BUILD: ✔ Mobile Apps (iOS & Android) — Flutter, React Native, Ionic/Cordova ✔ Web Apps & SaaS Platforms — React, Next.js, Angular ✔ Games — Unity 3D, Phaser ✔ E-commerce & WordPress websites ✔ API Integrations & Automation ✔ UI/UX Design (Figma to production) ✔ Admin Panels & Custom Dashboards RECENT WORK: - Cross-platform Flutter apps for startups - SaaS platforms from MVP to full launch - E-commerce websites with custom checkout flows - Unity mobile games (2D/3D) - UI/UX redesigns that improved retention - API integrations connecting third-party services WHY WORK WITH ME: Most developers write code. I build products — with attention to performance, scalability, and long-term maintainability, so you're not back here in 6 months fixing what someone else broke. Available for new builds, redesigns, MVPs, and long-term support. Let's talk about your project — send a message and I'll review your requirements and share how I'd approach it. .

Senior Unity Engineer (10+ years) shipping games and interactive apps across mobile, PC, and WebGL, with C# software architecture and performance optimization as daily practice. I thrive on complex problems and have a keen eye for detail—whether that's refactoring tangled codebases into clean architectures, removing performance bottlenecks, or integrating production features like MediaPipe and LLM APIs. Recent work: • Gamified Music Learning App — VContainer dependency injection, MessagePipe pub/sub events, TDD with 1.7:1 test-to-code ratio, zero-allocation performance patterns • Mosquito Coast — multi-screen interactive framework (patented) • Ablizmo / "OVERLODE" — real-time RTS/deck-building UI overhaul + systems work • Atomic Starman — narrative tooling pipeline (Articy + Dialogue System), Git LFS workflow setup as tech lead • Earlier: WebGL 3D medical visualization, mobile simulation apps, gameplay systems & bug fixing What I do best: 🧩 Gameplay / UI Systems • Modular C# systems, state machines, event-driven architecture • UI architecture (MVC/MVVM), responsive UX, tooltips, menus, data-driven UI 🚀 Performance & Stability • Profiling CPU/GPU, reducing GC/memory spikes, smoothing frame time • Pragmatic refactoring that improves stability without risky rewrites 🛠 Architecture, Testing & Tools • DI frameworks (VContainer, Zenject) for decoupled, testable systems • Unit testing discipline — extracting game-critical logic into pure C# classes for high-confidence refactoring • Turning large/legacy code into maintainable modules; Git workflow setup (LFS, branching, code review) • Editor tools + workflow improvements to speed up teams 🤖 AI / LLM Integrations (when useful) • Integrating APIs (OpenAI/Claude), prompt + data flow design, guardrails • I also use modern coding assistants to speed up delivery while keeping code production-ready How I work: I'm MVP-first: identify the highest-impact tasks, prototype quickly to de-risk, then build scalable solutions. I'm comfortable in distributed teams, communicate directly, and I'm not afraid to dive deep into debugging. What I'm looking for: • Gameplay programming, UI & systems development • Optimization, stabilization, refactoring legacy projects • Mobile & WebGL projects • Internal tools development • AI-assisted features, AR prototypes If you want a senior Unity developer who can ship fast, improve code quality, and make your project stable and scalable — I'd love to help.