Bobby is currently a software engineer at Airbnb, where he
works on optimizing the performance of Airbnb's financial fraud detection and mitigation
system. Bobby has previously worked at small start-ups with just 15 employees as well as
large enterprises with over 100,000 employees. He has experience in:
-
Managing cloud infrastructure on AWS and GCP
-
Building and testing data pipelines for system monitoring and machine learning
-
Building and testing full-stack web applications
If you are looking for a software engineer to join your team, please reach out to me via email. I would
love to learn about what you are working on.
EDUCATION
-
B.A. in Applied Mathematics, with a focus in Computer
Science
-
Language Citation in Chinese (Mandarin)
WORK EXPERIENCE
Technical Skills: Python, JavaScript/TypeScript, SQL,
Linux, Docker/Kubernetes, AWS/GCP/Azure
Domain Expertise: Full-Stack Web Development, Data
Analysis,
Cloud Infrastructure
Software Engineer (Payments Data & Risk)
Aug 2022 - Present
-
Designed and built a web app for monitoring and investigating fraud exploits and user
risk profiles
-
Handled on-call and incidents related to payments processing and hourly data
pipelines.
-
Increased annual revenue from reservations by $1M+ by reducing false positives in risk
detection.
-
Productionized ML models for risk detection into Airbnb's financial fraud defense
system.
Software Engineering Intern (Distributed Infrastructure)
May 2021 - Aug 2021
-
Designed and built a web-based interface testing tool by using sample payloads from
live Airbnb traffic and an automatic anonymization filter to hide sensitive data
-
Automated the generation of documentation for 100+ microservices and their RPC APIs.
Software Engineer Fellow
Sept 2020 - March 2021
-
Contributed open-sourced code to Dagster, a cloud-native data pipeline orchestrator.
-
Interviewed data engineers and ML engineers from companies, including Apple, DoorDash,
and Drizly, to understand pain points in their existing data infrastructure.
-
Operated testing environments for deploying Dagster data pipelines on AWS, GCP, and
Azure.
-
Built demos for prospective customers to showcase how Dagster scales horizontally on
the cloud.
Technical Marketing Intern
June 2020 - August 2020
-
Published documentation and technical marketing copy for Intel hardware plugins on
Kubernetes.
-
Designed and delivered a marketing demo to showcase 5x Redis performance (operations
per second) when using Intel Optane Persistent Memory compared to disk.
-
Operated testing environments for deploying Dagster data pipelines on AWS, GCP, and
Azure.
-
Answered customer questions about Intel's open source projects at KubeCon EU 2020.
Software Engineer Intern (Full Stack Web)
May 2018 - July 2018
-
Reduced search query latency by 83% and improved relevancy and typo resistance by
replacing a naive SQL query with Algolia Search API.
-
Decreased the main website's page load time by reducing JavaScript bundle size by 15%.
Director of Technology
Sept 2017 - May 2020
-
Managed a team of 4 software engineers to build a web app for handling conference
marketing and ticket sales, used by 1000+ monthly applicants from 70+ countries around
the world.
-
Built a web-based analytics dashboard for our team executives and sponsors to
understand applicant demographics and attendee engagement.
-
Containerized and deployed REST API endpoints on Google Cloud Platform's Kubernetes
Engine