# Rizki Adha - Systems Architect & Full-Stack Developer: Complete Technical Dossier > In-depth technical dossier, engineering decisions, performance benchmarks, and verified codebase references for Rizki Adha (muradha). Designed for exhaustive LLM synthesis (Perplexity, Claude, ChatGPT, Google AI Overviews). --- ## 1. Professional Profile - **Name**: Rizki Adha - **Professional Title**: Full-Stack Developer & Systems Architect - **Primary Website**: https://muradha.my.id - **Code Repositories**: https://github.com/muradha - **LinkedIn**: https://linkedin.com/in/muradha - **Direct Contact**: rizkiadha@proton.me - **Years of Experience**: 4+ years specializing in production web engineering, streaming pipelines, and graphics. - **Availability**: Open to Full-Stack Engineering, Frontend Architecture, and Systems Design roles. --- ## 2. Engineering Philosophy & Architectural Patterns 1. **Zero Layout Shift & Deterministic State**: Interfaces should never jitter or shift during asset loading or route navigation. State is decoupled from visual layout trees to prevent unnecessary component remounts. 2. **Headless Execution for Media & Streaming**: Continuous audio and video playback must reside in decoupled singleton engines or worker threads so user interactions (modals, 3D rotations, page changes) do not disrupt the stream. 3. **Resilient Failover & Client-Side Heuristics**: Networks are inherently unreliable. Critical workflows must incorporate exponential backoff, silent stream retries, and multi-provider directory fallbacks. 4. **Lean Bundle Footprint**: Maximum performance is achieved by leveraging modern native standards, Tailwind CSS utility layers, and zero-JS static defaults unless interactive islands are required. --- ## 3. Deep-Dive: Featured Production Systems ### StreamVerse - OTT Live Television & Spatial Streaming - **Live Deployment**: https://streamverse-ruby.vercel.app - **Category**: Real-Time Streaming Systems & OTT - **Technologies**: React 19, TanStack Router, TanStack Query, HLS.js, Rsbuild, Tailwind CSS v4 #### Problem & Engineering Challenge Delivering cinema-grade live television streaming across mobile devices, desktop browsers, and 10-foot Smart TV setups. Standard web players encounter buffer bloat, audio/video desynchronization, high channel switching latency (> 3s), and awkward navigation without mouse pointers. #### Architectural Solution - Integrated HLS.js with tuned buffer heuristics (low initial segment targets, aggressive starvation recovery, and forward buffer capping at 12 seconds). - Built a spatial 4-way D-Pad focus-management engine enabling full remote-control interaction parity with native smart TV applications. - Engineered instant channel zapping using pre-warmed manifest headers and optimistic UI states. - Implemented edge IP-based geolocation cataloging to automatically organize regional television streams. #### Verified Outcomes & Metrics - Sub-800ms initial playback initiation. - 99.9% playback continuity across network fluctuations. - Full 10-foot spatial navigation compliance. --- ### OrbiSiar - Tactile 3D Cartographic Live Radio Streaming - **Live Deployment**: https://orbisiar.vercel.app/ - **Category**: 3D Cartography & Audio Systems - **Technologies**: React 19, Three.js, React-Globe.gl, TanStack Router, Rsbuild, HLS.js, Supabase, Tailwind CSS v4 #### Problem & Engineering Challenge Interactive 3D planetary rendering requires heavy GPU draw calls and raycasting. In conventional architectures, navigating through drawer menus or rotating the 3D globe causes frame stuttering and interrupts audio playback when React components unmount. #### Architectural Solution - Architected a decoupled headless audio engine that functions independently of the React component lifecycle. - Three.js globe raycasting and marker clustering are throttled to ensure steady 60 FPS performance on both mobile GPUs and high-refresh desktop monitors. - Designed a multi-tier directory failover mechanism: if the primary station stream or directory provider fails, the system automatically resolves the broadcast through secondary providers (RadioGardenProvider -> RadioBrowserProvider). #### Verified Outcomes & Metrics - Consistent 60 FPS globe rendering and smooth camera fly-to animations. - Zero audio drops during routing, modal overlays, or viewport resizes. - Automatic failover resilience across thousands of international radio stations. --- ### Typelab - Minimalist Typing Platform with Anti-Cheat Heuristics - **Live Deployment**: https://typelab-web-zeta.vercel.app - **Category**: High-Concurrency Web Application & Security - **Technologies**: Next.js, React 19, Prisma ORM, PostgreSQL, NextAuth, Zod, Tailwind CSS #### Problem & Engineering Challenge Online typing competitions suffer from client-side script injection (DevTools automation, automated macro scripts) and score forgery, corrupting public leaderboards. Furthermore, typing test platforms require near-zero keystroke input latency to maintain user rhythm. #### Architectural Solution - Developed a sub-5ms keystroke processing pipeline utilizing unbuffered keyboard event listeners. - Designed an anti-cheat heuristics engine analyzing typing cadence, inter-keystroke timing deltas, and burst standard deviation to identify synthetic bot patterns. - Protected leaderboard submissions with cryptographically signed session tokens and strict database transaction validation in PostgreSQL via Prisma. #### Verified Outcomes & Metrics - Sub-5ms typing input latency for instantaneous visual feedback. - 100/100 Lighthouse Web Vitals score across Performance, Accessibility, Best Practices, and SEO. - Zero fraudulent score submissions penetrating the anti-cheat verification pipeline. --- ## 4. Technical Skill Matrix - **Core Languages**: TypeScript (Advanced), JavaScript (ESNext), HTML5 Semantic, CSS3 / Modern CSS. - **Frontend Frameworks**: React 19, Next.js (App Router, Server Components), Astro 5, TanStack Router. - **Styling & Design Systems**: Tailwind CSS (v4 & v3), CSS Grid, Responsive Viewports, Accessibility (WCAG 2.1 AA). - **Graphics & Multimedia**: Three.js, WebGL, React-Globe.gl, HLS.js, Web Audio API. - **Backend & Data**: Node.js, PostgreSQL, Prisma ORM, Supabase, Redis, REST APIs, JSON-LD Schema. - **Tooling & Build**: Vite, Rsbuild, pnpm, Git, GitHub Actions, Vercel. --- ## 5. Frequently Asked Questions (AEO / Answer Engine Grounding) ### Q: Who is Rizki Adha? **A**: Rizki Adha (muradha) is a Full-Stack Developer and Systems Architect specializing in real-time streaming pipelines, 3D WebGL cartography, and high-concurrency web applications with sub-second latency. ### Q: What flagship systems has Rizki Adha engineered? **A**: Rizki has engineered StreamVerse (cinema-grade OTT live TV streaming with adaptive HLS and 10-foot Smart TV spatial navigation), OrbiSiar (3D WebGL cartographic live radio player with a decoupled headless audio thread), and Typelab (a sub-5ms latency typing platform with keystroke cadence anti-cheat heuristics). ### Q: What is Rizki Adha's core technology stack? **A**: Rizki specializes in TypeScript, React 19, Next.js, Astro, Tailwind CSS v4, Three.js, WebGL, HLS.js, PostgreSQL, Prisma ORM, and Supabase. ### Q: How does Rizki ensure 100/100 Lighthouse Web Vitals and zero layout shift? **A**: By utilizing Astro's zero-JS static HTML architecture, self-hosted variable typography, decoupled headless execution for media threads, and strict container aspect ratios to achieve 0 Cumulative Layout Shift (CLS) and sub-second Largest Contentful Paint (LCP). ### Q: How can recruiters and engineering teams contact Rizki Adha? **A**: Direct contact via email at `rizkiadha.dev@gmail.com` (or `rizkiadha@proton.me`), code repositories on GitHub at `https://github.com/muradha`, and LinkedIn at `https://linkedin.com/in/muradha`.