Eric Zhang

At Typeface, I build full-stack features for Arc, an enterprise AI marketing platform that helps global teams create and orchestrate brand-aware campaigns across email, web, social, and advertising.

I develop Arc Agents for multi-step workflows and engineer RAG, semantic retrieval, and multimodal AI capabilities using Gemini, Vertex AI, embeddings, vector search, and MCP integrations. I also build scalable Python, FastAPI, PostgreSQL, Redis, React, TypeScript, and Next.js services for high-volume inference and real-time agent experiences.

Previously at Stripe, I led full-stack development for Radar, building real-time fraud risk experiences, ML pipelines, payment decisioning services, and merchant investigation workflows. I contributed to Radar's response to card-testing attacks, supporting detection and mitigation systems during a period when it blocked more than 20 million attempts per day.

At AWS, I built backend services for Amazon CloudWatch, processing metrics, logs, and operational data at scale. I progressed from intern to Software Development Engineer while improving service reliability, leading feature delivery, mentoring engineers, and contributing to architecture and design reviews.