Sithija
Kalhara
Founder of Eyerone — building scalable platforms and interactive 3D applications where high-performance engineering meets gaming culture.
Engineering by discipline. Gaming culture by passion.
I'm a passionate Full-Stack Developer and AI enthusiast building modern digital experiences. As the Founder of Eyerone, I focus on creating scalable platforms, interactive 3D applications, and innovative tech-driven solutions. I specialize in React, Next.js, Node.js, and Three.js, combining clean architecture with high-performance design. Beyond coding, I'm deeply involved in gaming technology, real-time systems, and creative media production.
Build powerful systems, push technical boundaries, and turn ambitious ideas into reality.
The console behind every build.
Things I've built.
Eyerone
FeaturedOne Digital Vision for the Future
A full-scale social media and live streaming platform built entirely solo. Features real-time HLS streaming, a TikTok-style gift system with animations, EyeCoin virtual currency powered by Stripe, passkey authentication, 2FA, and Flicks (short-form video). Architected on Cloudflare's edge infrastructure.
- ▸Solo full-stack build — 100% by Sithija
- ▸Live streaming with HLS + Cloudflare R2
- ▸EyeCoin payment system via Stripe
sithijakalhara.com
FeaturedCinematic personal portfolio
A dark-cinematic portfolio site with a 3D AI Core hero scene (React Three Fiber), scroll-triggered animations (Framer Motion), NEXUS AI assistant (Gemini-powered), YouTube live detection, EmailJS contact form, and full SEO optimization.
- ▸3D AI Core particle sphere (mouse-reactive)
- ▸NEXUS AI assistant — context-aware chat
- ▸YouTube live/latest video auto-embed
CartoonLK
Sri Lankan streaming destination
A video streaming platform focused on Sri Lankan content. Built with a modern stack, featuring a clean UI for browsing and watching content online.
- ▸Video streaming platform
- ▸Sri Lankan content focus
- ▸Custom video player
ZeylonJourney
Explore Sri Lanka differently
A travel and tourism platform showcasing Sri Lanka's destinations, culture, and experiences. Designed to help travelers discover and plan trips across the island.
- ▸Travel destination guides
- ▸Sri Lanka tourism focus
- ▸Interactive location browsing
Mr. Flexy
FeaturedGaming content & live streaming brand
Gaming content creator brand across YouTube, TikTok, and Facebook. Producing bilingual (Sinhala + English) gameplay content, live streams, and gaming commentary since 2019.
- ▸2,388+ TikTok followers, 10.9K likes
- ▸YouTube gaming channel — @mrflexy1
- ▸Bilingual content (Sinhala + English)
The journey so far.
AI Student
CurrentChuo College of AI, Japan
Studying artificial intelligence and machine learning at Chuo College of AI in Oyama, Tochigi, Japan. Combining formal AI education with active full-stack development.
Founder & Full-Stack Developer
CurrentEyerone
Founded and solely built Eyerone — a full social media and live streaming platform. Handling everything from architecture design to deployment, payments, and real-time streaming infrastructure.
Portfolio Launch
sithijakalhara.com
Launched a cinematic personal portfolio with 3D Three.js scene, NEXUS AI assistant, YouTube live integration, and full SEO optimization. Indexed and verified on Google.
Full-Stack Developer
Freelance & Personal Projects
Expanded into freelance full-stack development, building CartoonLK (streaming platform) and ZeylonJourney (travel site). Deepened expertise in MongoDB, Express, and Cloudflare infrastructure.
UI/UX Designer
Self-directed
Developed strong UI/UX design skills using Figma. Started combining design thinking with engineering to build visually polished, performance-optimized web applications.
Gaming Content Creator
CurrentMr. Flexy — YouTube & TikTok
Launched the Mr. Flexy gaming brand on YouTube and TikTok. Started with Apex Legends and Free Fire content, growing a bilingual community. Simultaneously began self-teaching web development.
Started Coding
Self-taught
Began the self-taught coding journey with HTML, CSS, and JavaScript. Driven by a passion for building things, rapidly progressed to React, Node.js, and beyond.
Where I spend my cycles.
Eyerone
Scalable platforms and interactive 3D applications, engineered with clean architecture and high-performance design at the core.
Real-Time Systems
Building responsive, low-latency systems where gaming technology and production-grade software engineering intersect.
AI & Data
Turning raw data into structured insight — applying AI-driven analysis to inform better, faster decisions.
Creative Media
Live streaming and content production under the Mr. Flexy brand, where entertainment meets technical craft.
Code by the numbers.
Off the keyboard, behind the mic.
Mr. Flexy
Gaming content creator and live streamer, bringing the same intensity from production codebases to competitive gameplay. Real-time systems, real-time reactions.
Live gameplay sessions blended with dev commentary — where the build process becomes the show.
Growing a community around gaming tech, real systems, and honest creative process.
Let's build something ambitious.
Open to product collaborations, full-stack builds, and anything that mixes serious engineering with creative ambition. Drop a message or reach out directly.