Open to opportunities

Daniel Liu

@danielliu1

Message

I build scalable AI-powered web platforms, cloud systems, and high-performance APIs for millions of users.

United States

Message

What I'm looking for

I'm looking to solve complex technical challenges by building scalable AI-powered products, clean cloud architectures, automated delivery systems, and high-impact applications.

I've built scalable web and AI-powered systems at Airbnb, including distributed microservices on AWS and Kubernetes supporting applications used by over one million users. I improved backend performance by more than 60%, automated CI/CD to reduce deployment time by 80%, and led a team of 10 engineers.

Previously, I built enterprise applications at Interexy and customer-facing, high-volume transaction platforms at Bit Studios. I work across React, Node.js, Python, cloud architecture, APIs, data pipelines, and AI tooling including OpenAI, LangChain, LlamaIndex, and RAG.

Experience

Work history, roles, and key accomplishments

Senior Full Stack & AI Engineer

Airbnb

May 2023 - May 2026 (3 years)

Designed and developed scalable backend services and REST APIs using Python (FastAPI) and TypeScript. Built distributed microservices on AWS and Kubernetes, and developed AI-powered document processing systems with OpenAI, LangChain, and LlamaIndex.

Python fastAPI TypeScript React Next.js OpenAI API Lang Chain LlamaIndex RAG Elasticsearch AWS Kubernetes PostgreSQL Redis CI CD Microservices Distributed Systems

Senior Full Stack Engineer

Interexy

Jun 2020 - Apr 2023 (2 years 10 months)

Built large-scale enterprise applications from the ground up, designed RESTful and GraphQL APIs, and migrated legacy applications to modern cloud architecture. Reduced infrastructure costs by 35% and implemented real-time dashboards using WebSockets.

React NestJS Docker AWS MongoDB GraphQL WebSockets REST APIs

Full Stack Developer

Bit Studios

Jan 2017 - May 2020 (3 years 4 months)

Developed customer-facing web applications, created reusable frontend components, and built backend APIs for high-volume transaction systems. Increased page performance using lazy loading and code splitting.

Python fastAPI Flask React MySQL Redis AWS Agile Development