Justin Sebastian

Founder & Technical Product Leader

Austin, TX

Building AI-powered learning products with full technical ownership from architecture to deployment, serving 2M+ users across 5 applications.

Work Experience

Founder

UofHappy, Jan 2019 - Present

Led end-to-end technical strategy and architecture for AI-powered learning platform serving 2M+ users. Architected generative AI features including personalized content generation, RAG-based knowledge retrieval, and adaptive learning systems. Made critical technical decisions across AWS infrastructure, PostgreSQL database design, and AI/ML pipeline architecture. Built data-driven learning experiences using spaced repetition, gamification, and behavioral analytics. Full technical and product ownership of 5 revenue-generating applications.

Senior Solutions Consultant

Sirius Computer Solutions, 2015 - 2018

Led enterprise architecture decisions and technical strategy for Fortune 500 clients. Designed scalable technology solutions and drove digital transformation initiatives. Specialized in cloud infrastructure optimization and system architecture.

Solutions Consultant

Avnet Technology Solutions, 2014 - 2015

Designed and architected technology solutions for enterprise clients. Led technical discovery, system design, and proof-of-concept implementations. Drove architecture decisions for complex multi-system integrations.

Technical Program Analyst

Waste Management, 2012 - 2014

Analyzed technical requirements and designed process improvements for enterprise systems. Supported program delivery through data analysis, technical documentation, and cross-functional collaboration with engineering and operations teams.

Featured Projects

UofHappy

Zero to Hero

AI Education Platform

Built full-stack AI education platform with interactive coding exercises, progress tracking, and curriculum management.

365 Gratitude

2M+ users

Positivity-focused social network with AI-powered personalized reflection. Gamification and motivational tools designed to drive engagement and retention.

Insight Books

AI Learning Platform

AI-driven active learning platform. RAG + embeddings for knowledge retrieval. Spaced repetition for retention. Data-driven recommendations.

UofHappy

Adaptive Learning Platform

Adaptive AI learning platform for emotional intelligence. Gamified quests and rewards to sustain motivation. Generative AI for personalized learning paths.

Wise Journal

AI-guided self-reflection tool for self-discovery and structured decision frameworks.

Zero Meditation

AI-generated meditation sessions with dynamic audio and content tailored to user needs.

Education

University of North Carolina

Chapel Hill, 2008 - 2012

Skills

Technical Architecture

AWS, Azure, System Design, Cloud Infrastructure

AI & Machine Learning

Generative AI, LLMs, RAG Systems, Embeddings, Prompt Engineering, AI Product Development

Product & Motivation Design

Data-Driven Product Development, Behavior Change Management, Gamification Design, A/B Testing, User Analytics, Adaptive Learning