John Wang
Founder And CEO at Stealth Startup
Boston, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolJohn Wang is a seasoned technologist, investor, and founder with 16 years building large-scale search, observability, and big data infrastructure across startups and hyperscale companies. He co-founded Dashbase and served as CTO before its acquisition by Cisco AppDynamics, then led engineering at AppDynamics while transitioning into venture as a General Partner at Foothill Ventures and active angel/advisor to companies like PingCAP and Imply. At Twitter and LinkedIn he architected high-performance distributed search systems that dramatically cut latency and enabled real-time indexing at scale—a thread that continues in his open-source contributions to projects such as Zoie and the Sensei realtime searchable database. Based in Boston, he combines deep systems engineering with deal-making instincts, having seeded PingCAP before it became a unicorn. He also invests in community-scale ventures (e.g., a rapidly growing fencing club) and runs a stealth startup, reflecting a taste for operationally hands-on bets alongside technical leadership.
16 years of coding experience
29 years of employment as a software developer
BS Computer Science, BS Computer Science at Binghamton UniversityThe University of UtahGraduate classes in Database and Information Retrieval Computer Science, Graduate classes in Database and Information Retrieval Computer Science at Stanford University
English, mandarin (普通话), shanghainese (上海话)
Github Skills (10)
lucene10
unit-testing10
javas10
solr10
indexing10
java10
mocking10
searching10
distributed-systems9
database-design8
Programming languages (9)
Github contributions (5)
LinkedInAttic/sensei
Feb 2010 - Jul 2012
distributed realtime searchable database
Role in this project:
Back-end Developer
Back-end DeveloperContributions:540 commits in 2 years 5 months
Contributions summary:John's contributions centered around enhancing the `sensei` distributed realtime searchable database, with a specific focus on implementing unit tests and mock objects for the `linkedinattic/sensei` repository. Their work involved creating test classes for various components of the system, including a mock cluster and a mock network client, and integrating these tests into the project. Furthermore, the user's modifications included changing `Serializable` to `SenseiQuery`, indicating a refactoring effort to improve code clarity or performance within the system.
realtimedatabasesearchabledistributed
senseidb/zoie
Feb 2010 - Mar 2013
realtime search/indexing system
Role in this project:Back-end Developer
Back-end DeveloperContributions:167 commits in 3 years 1 month
Contributions summary:John primarily contributed to the Zoie project by fixing bugs and integrating new features related to indexing and search. The commits show changes in ZoieSegmentReader.java, IndexReaderDispenser.java and other core classes, indicating a focus on improving the underlying search and indexing functionality. Additionally, the user made changes to support Solr plugins which included fixing and implementing reopening features.
search-enginerealtimeindexingsearch
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