AndreHance

AI Application Engineer

LLMs · RAG · AWS · TypeScript · React Native

Projects

About

Hands-on experience architecting production AI systems end-to-end. From agentic LLM workflows with tool use and function calling to serverless cloud infrastructure and mobile apps.

Stevens Institute of Technology

M.S. Machine Learning · 2025

Allegheny College

B.S. Computer Science · 2023

Skills

// Languages

PythonTypeScriptJavaScriptSQLRJavaC++

// AI / ML

LLMsRAGTool Use & Function CallingAgentic WorkflowsPrompt CachingPyTorchHugging FaceScikit-learn

// Cloud & Infra

AWS LambdaDynamoDBCDKCognitoAPI GatewayS3EventBridgeDocker

// MLOps / DevOps

GitMLflowKubernetesWeights & BiasesFAISSCI/CD

// Mobile & Web

React NativeExpoReact QuerySSE StreamingREST APIsStreamlit

Experience

Developer & Technical Architect

Wavelength Audio Video · Bernardsville, NJ

Sept 2025 – Present

  • Architected a serverless field service CRM on AWS (50+ Lambda functions, 11 DynamoDB tables, CDK IaC) serving admins, employees, and customers
  • Built a dual-mode AI assistant powered by Claude: an employee-facing CRUD copilot with 10 tool-use functions and a streaming customer-facing assistant with context-injected prompts
  • Implemented keyword-based RAG for manufacturer docs — S3 upload triggers automated parsing, chunking, and inverted-index storage with search results injected into AI context
  • Engineered prompt caching strategy reducing AI input costs by 90% ($3 → $0.30/MTok) with per-message token tracking and admin monitoring
  • Developed a React Native (Expo/TypeScript) mobile app with role-based navigation, SigV4-signed SSE streaming, and JWT auth with automatic token refresh

Teaching Assistant — Data Analytics & Bioinformatics

Allegheny College · Meadville, PA

Sep 2022 – May 2023

  • Supported students with Python-based data analysis, statistical modeling, and genomics pipelines using pandas, NumPy, and R

Research

Senior Thesis: Rated — A music sharing, rating, and promotion app built with React Native and Firebase.

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© 2026 Andre Hance · andrehance.me