Open to opportunities

Peter Feng

@peterfeng1

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Senior Software Engineer specializing in scalable backend systems, distributed pipelines, and GenAI retrieval.

United States

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What I'm looking for

I am seeking senior engineering roles focused on scalable backend or GenAI-enabled systems, in collaborative, API-driven teams that value observability, testing, and mentorship.

I am a Senior Software Engineer with eight years of experience building scalable backend and frontend systems across travel and healthcare domains in both enterprise and startup environments.

I specialize in distributed systems, ETL and streaming pipelines, and GenAI-powered retrieval systems, and I leverage AI-assisted development tools to accelerate delivery while maintaining high standards of performance, reliability, and maintainability.

At Airbnb I modernized ranking infrastructure to microservices, built batch and streaming ETL with PySpark and Kafka, and implemented LLM-powered RAG systems with vector databases to improve guest intent understanding.

Previously at Oscar Health I built HIPAA-compliant backend services, integrated EMR systems with HL7/FHIR, improved real-time video consultations with WebRTC and STUN/TURN, and contributed to CI/CD and observability practices.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Airbnb

Oct 2021 - Present (4 years 5 months)

Modernized ranking platform by migrating core infrastructure from a Rails monolith to real-time Python and Java microservices supporting low-latency personalized search for 100M+ users; built ETL and streaming pipelines processing terabytes daily and implemented LLM-powered RAG systems to improve guest intent understanding.

Python Java Kafka Airflow Pyspark Vector Databases REST GraphQL AWS Kubernetes

Full Stack Engineer

Oscar Health

Sep 2018 - Aug 2021 (2 years 11 months)

Built HIPAA-compliant backend services and secure REST APIs for a telemedicine platform, integrated EMR systems (HL7/FHIR), and improved real-time video consultations and frontend performance for low-bandwidth users.

Python RabbitMQ Redis JWT WebRTC HL7 FHIR Jenkins CI CD

Education

Degrees, certifications, and relevant coursework

Texas Tech University

Bachelor of Science, Computer Science

Completed a Bachelor of Science in Computer Science, graduating in May 2018 with coursework covering software engineering, systems, and data processing.