Sumit Rangwala Email & Phone Number

Sunnyvale, Ca, Us

Sunnyvale, Ca, Us

Building a company wide data quality solution

Sunnyvale, Ca, Us

Sunnyvale, Ca, Us

Growth Relevance

Sunnyvale, Ca, Us

Online Relevance Infrastructure

Redwood City, Ca, Us

Distributed Systems:At Turn I am the owner/co-owner of the following services: ● Distributed Key Value Store A distributed key value store using Fusion-IO cards. We use various open source libraries for cluster management, data storage, etc. ● Cross data center data replication service Replicating data across data centers in near-real time● User profile store Store that manages user profiles used during real time bidding (RTB).● Distributed Monitoring and Rate Control A framework to improve the robustness of a distributed services by monitoring (at scale and with low latency) and regulating the load on the distributed system. All the above services operate at a scale of ~2 million request per *second* (at peak), ~2 billion key value pairs, and tens of TB of data. I am also involved (some are past projects) in: Analytics:● Identifying user based on user attributes (see patents below)Scalability and Performance:● Taming Java Garbage Collection for real time performance● Streamlining linux kernel settings for optimal network performance● Understanding performance of load balancers under high frequency real-time connections (They don't always work!)● Redesign of a messaging layer for communication among distributed services I am also the unofficial Docker Evangelist at Turn :)✦ Patent: Methods and apparatus for identifying unique users for on-line advertising✦ Patent: Methods and apparatus for identifying a cookie-less user✦ Patent: Methods and systems for using device connectivity information in on-line advertising

San Jose, Ca, Us

Architect and developer for a control and a data protocol for bulk data transfer to millions of smart meters from a central data center over 6LoWPAN and 802.15.4. My implementation ran successfully for simultaneous data transfer to 5 million nodes.Part of the team formed by the acquisition of Arch Rock: http://www.crunchbase.com/organization/arch-rock-corporationarch-rock-corporation✦ Patent: Hierarchical schema to provide an aggregated view of device capabilities in a network

San Jose, Ca, Us

Architect and developer for one of the key components of next generation data center virtualization architecture at Cisco. Specifically, a scalable, hierarchical system to collect and compress machine data in massive data centers using statistical summaries.✦ Patent: Data Center Capability Summarization✦ Patent: Cloud resource placement based on stochastic analysis of service requests

New Brunswick, Nj, Us

● Cognitive Radio Networks● Openflow (now Open Networking Foundation).

Los Angeles, Ca, Us

● Transport protocols for wireless networksLead the complete development of two transport protocols (TCP counterparts) one for multi-hop wireless networks, and another for wireless sensor networks.Publicly available source code: ● http://enl.usc.edu/software.html#wcp_code ● http://tinyos.cvs.sourceforge.net/tinyos/tinyos-1.x/contrib/usc-ifrc/● Data collection protocol for wireless networksWe developed a wireless sensor network-based data acquisition system for structural health monitoring which consisted of a network of tiny (resource constraint) devices, communicating over a wireless multi-hop network, collecting structural vibrations in buildings, bridges, etc., to identify structural damages.Publicly available source code: ● http://enl.usc.edu/software.html#wisden_code✦ Please refer to http://enl.usc.edu/~srangwal/research.html for further details.

Redmond, Washington, Us

Energy profiling of network interfaces on smart phones.

Dallas, Tx, Us

Worked on a couple of in-house computer-aided design (CAD) software projects.

Ph. D., Computer Science

Ms, Computer Science

Bachelors Of Engineering, Computer Engineering