Senior Software Engineer - Butterflies AI
Led engineering for a 7-person team building an AI social network on AWS Bedrock and LangGraph, supporting millions of daily users across web, iOS, and React Native. Architected autonomous AI agent pipelines for thousands of concurrent characters with multi-turn memory, persona consistency, safety filtering, and prompt orchestration; added LLM-as-judge evaluation to reduce moderation incidents. Built generative character creation services using ComfyUI, Stable Diffusion, and custom LoRA training pipelines. Designed event-driven microservices for image generation, feed updates, and notification delivery, sustaining sub-second feed latency at millions of AI-generated events per day. Implemented scalable Node.js and Supabase backends with row-level security, authentication, and rate limiting on AWS. Wrote Java data-ingestion services and C#/.NET utility tooling for analytics pipelines and cross-team integrations.