Open to opportunities

Joseph Zhang

@josephzhang1

Message

Senior Python backend and Full‑Stack TypeScript developer specializing in AI platform infrastructure.

United States

Message

What I'm looking for

I seek roles building scalable AI platform infrastructure and production-grade backend systems with strong emphasis on reliability, cost optimization, observability, and mentoring engineering teams.

I am a Senior Backend Engineer with 10 years designing, building, and scaling microservice-based systems and cloud-native infrastructure across AWS, GCP, and Azure. I specialize in Python, Go, and TypeScript, delivering production-grade backend platforms and secure data architectures that power AI-driven products.

I have built RAG pipelines, multi-agent AI systems, event-driven ingestion pipelines, and observability and cost-optimized cloud deployments, and I mentor engineers on LLM best practices and system design for AI-native applications.

Experience

Work history, roles, and key accomplishments

Current

Applied AI Engineer

Current

Duckie AI

Oct 2023 - Present (2 years 3 months)

Designed and shipped end-to-end AI features using RAG, prompt orchestration, and multi-agent systems; built scalable FastAPI and TypeScript backends and retrieval pipelines (Weaviate, Qdrant) that improved LLM factuality and reduced hallucinations.

Python fastAPI TypeScript Vector Search Terraform Docker Kubernetes Observability RAG

Senior Backend Engineer

Microsoft

Sep 2018 - Sep 2023 (5 years)

Developed multi-tenant API services and event-driven systems on Azure, built AKS-deployed microservices and CI/CD pipelines that improved release velocity by 40% and strengthened monitoring and SLA compliance.

Python Azure Terraform Kafka CI CD azure monitor Microservices API Design DevOps

Backend Developer

General Motors

Jan 2017 - Aug 2018 (1 year 7 months)

Developed Python/Django backend modules and REST APIs for workflow automation, improved financial forecasting accuracy via relational schema design, and optimized performance with caching and indexing.