Collin Barber

• Engineered full-stack healthcare ATS (Applicant tracking system) using Next.js, PostgreSQL, and Supabase. • Reduced page load times from 7 seconds to 2 seconds on extreme low-end devices by lazy loading, and code splitting. • Supporting 15 healthcare facilities processing more than 3,000 applications each month with 99.9% up-time.

• Selected as undergraduate TA after building top-performing AI agents; promoted from CA mid-semester. • Built optimized Othello agent using bitwise board representation and 8-ply minimax search (class avg: 3-ply). • Built tournament system in Java Swing with custom GIF parser (400 LOC, no external libraries) and animations. • Designed and ran bot tournaments (Othello, Ultimate TTT) for ~50 students each. • Helped students debug adversarial AI problems and design stronger bots; collaborated with instructors to improve curriculum. • Led labs and 6+ weekly office hours for 150+ students; graded assignments and maintained autograder.

• Led 3-engineer backend team at OpenAI-backed voice AI startup; built Siri-competitor voice assistant demo. • Integrated OpenAI and Anthropic APIs with Retell.ai voice platform using microservices design in FastAPI. • Reduced LLM time-to-first-token by 80% (10s to 2s) through parallel API orchestration and prompt optimization. • Designed shared abstraction layer for async LLM calls, eliminating 20,000+ lines of duplicated code.

• Tutored students in mathematics (calculus) and computer science • Provided drop-in academic support at the campus library.

• Taught martial arts classes as 2nd degree black belt. • promoted from volunteer to paid instructor based on performance.