Jun 2020 – Feb 2022 · 1 yr 8 mos · San Francisco Bay Area · Remote

• Designed the next-gen backend to support Digital Wallets (Google Pay & Apple Pay) on the WePay Payments API
• Led a team of 4 Engineers, 1 Product Manager and 2 Account Managers to implement, test and rollout digital wallets
• Identified Point-of-Sale device APIs to be a weak link for scalability and reliability when processing in-person transactions • Designed a Kafka powered asynchronous payment processing system to work around these limitations
• Mentored an intern to implement the async processor, cutting API latencies from >6s to <3s and reducing outages
• Implemented a Kafka pipeline that powers monthly billing statement generation for 1000+ merchants
• Created the team’s first onboarding document that has since been used to onboard 13+ team members
• Overhauled the Gradle build system for 9 microservices from deprecated version 2 to version 8

Jun 2019 – Jun 2020 · 1 yr · San Francisco, California, United States · On-site

• Building and supporting Yelp's scalable Search and Ranking infrastructure.
• Building Yelp's nrtSearch - a high performance gRPC server on top of Apache Lucene (https://github.com/Yelp/nrtsearch)
• Built a gRPC/Protobuf Query interface that hides Elasticsearch under a Yelp-y abstraction so client teams do not have to write verbose queries to express search constraints
• Created a high QPS internal Business Search GraphQL API endpoint for client teams powered by Elasticsearch
• Moved Elasticsearch clusters between AWS regions to save AWS costs

Jul 2018 – Jun 2019 · 11 mos · San Francisco, California, United States · On-site

• Supporting Yelp's NoSQL infrastructure.
• Built and supported infrastructure for client teams to use Cassandra and Elasticsearch
• Built a connector that streams updates from Cassandra clusters to Kafka (Blog post: https://engineeringblog.yelp.com/2019/12/cassandra-source-connector-part-1.html)
• Upgraded all our Cassandra cluster from Ubuntu 14.04 LTS to Ubuntu 16.04 LTS

Jun 2017 – Sep 2017 · 3 mos · San Francisco, California, United States · On-site

• Worked on the Distributed Systems team at Yelp to build a sandbox for Yelp's NoSQL (Cassandra, ElasticSearch) infrastructure.
• Client teams can use the sandbox for interactive development and quicker tests for their services which relies on Cassandra or ElasticSearch.

Sep 2016 – Jun 2018 · 1 yr 9 mos · San Diego, California, United States · On-site

• TA for four courses across UCSD Computer Science and Cognitive Science departments:
• Human-Computer Interaction Design (ixd.ucsd.edu/home/f16/)
• Human-Computer Interaction Programming Studio (courses.pgbovine.net/cogs121/)
• HCI Technical Systems Research (courses.pgbovine.net/cogs124/)
• Advanced Software Engineering (https://courses.ucsd.edu/coursemain.aspx?section=938588)

Sep 2016 – Jun 2018 · 1 yr 9 mos · San Diego, California, United States · On-site

• Built an operating system wide activity tracing for creating and profiling software tutorials. Worked under the guidance of Philip Guo.
• Published two papers, including one best paper at the top ACM conference for Computer Systems and Human Interfaces:
• 1. "Torta: Generating Mixed-Media GUI and Command-Line App Tutorials Using Operating-System-Wide Activity Tracing"
• Published at ACM UIST 2017, Québec, Canada. https://dl.acm.org/citation.cfm?id=3126628
• 2. "Porta: Profiling Software Tutorials Using Operating-System-Wide Activity Tracing"
• Best paper at ACM UIST 2018, Berlin, Germany. https://dl.acm.org/citation.cfm?id=3242633

Jan 2016 – Jun 2016 · 5 mos · On-site

• Worked on porting the Microsoft Bot Framework (https://dev.botframework.com/) for Outlook on Office365 so corporate clients can use AI bots over email.

May 2015 – Jul 2015 · 2 mos · On-site

• Worked with the Bing team to building a data pipeline for using open data sources (Wikipedia, Wikidata, Dbpedia) to enhance the “triggering” of the Search Engine Results Panel (SERP). The data pipeline enabled Bing to display the SERP for 300,000 additional entities.

Jan 2016 – Jun 2017 · 1 yr 5 mos · San Francisco Bay Area · Remote

• Built and ran the website that hosted the largest online study of the Wisdom of Crowds effect
• Helped with analyzing the data collected from the online study