UC Berkeley

Fox Chapel Area High School

Software Engineer at Nuro

Berkeley, California, United States

Nuro

Software Engineer

- Built an event handler that significantly improved the speed and memory usage of the system used for sending out trade orders
-  Designed and implemented a heuristic tool for monitoring interesting options trades

Jane Street

Software Engineering Intern

Worked on the Dropbox for Business team
-  Implemented permissions model for nested shared folders
-  Re-designed user authentication flow to support proper logging and permissions checks
-  Performance improvements to critical server endpoints

Dropbox

Worked on Dremel, a high-performance SQL query engine for web-scale data analysis.
-  Developed a new type of lookup join for joining a large partitioned table and a smaller table where a hash join would incur too much overhead
-  Implemented a lookup table on top of Google's in-memory data store capable of high distributed read and write throughput to execute the lookup joins quickly

Google

Worked with Ion Stoica and Haoyuan Li on Tachyon, a fault tolerant distributed file system enabling reliable file sharing at memory-speed across cluster frameworks, such as Spark and MapReduce
-  Implemented fine-grained caching for columnar data
-  Redesigned and optimized the filesystem metadata manager

Research Intern

Worked with Dave Andersen on libcuckoo, a high-speed, memory-efficient, hash table designed for high levels of concurrency
-  Implemented a general purpose, industrial-quality version of the table in C++
-  Improved the design to support concurrent expansion and concurrent writers

Carnegie Mellon University

Summers of 2012 and 2013, helped build a scalable, in-memory database.
-  Implemented foreign keys with referential integrity
-  Contributed to the frontend dashboard
-  Developed a tool to replicate between MySQL and MemSQL
-  Implemented several aggregate and builtin functions
-  Fixed dozens of bugs to stabilize the engine before the first public release

MemSQL

Worked with Deepak Garg to build a tool that can automatically find violations in patent privacy policies like HIPAA.
-  Implemented the concurrent policy-checking algorithm with additional features including history maintenance, process cancellation, and interactive policy modification
-  Created in-memory and database-backed representations of the versioned policy data structure
-  Built a custom multithreaded webserver and interactive front-end

Manu Goyal