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Technical Lead and Manager of the Napa BLR team for Google's peta-byte scale Analytical storage system Napa. Napa drives critical workload for Google's billion dollar Ads, payments, and other revenue critical services.

Check out team's VLDB'21 paper on Napa Data Warehouse or CMU Tech Talk for more details. 

[VLDB'21 Paper] https://research.google/pubs/pub50617
[Napa CMU Tech Talk] https://m.youtube.com/watch?v=dtWwUWB5JyQ

Sequoia Capital

Kleiner Perkins

Jeff Bezos

David Cheriton

Ram Shriram

Andy Bechtolsheim

Asha Jadeja Motwani

Tugboat Ventures

Sherpalo Ventures

DFJ Growth

Plug and Play Tech Center

Western Technology Investment

Data Point Capital

Dot Edu Ventures

Designer Fund

NUMA

Signatures Capital

Cota Capital

Steelhead Ventures

Mobile10x

Public Investment Fund

Slayton Capital

Greyrock Investments

Siddhi Capital

Liso Venture

Developer of a keyword-based search engine platform. It enables users to search for various information like web pages, pictures, news, weather condition report, and files by providing keywords in the search bar. It uses a page rank algorithm to search and organize results for users. It also offers various features like voice-enabled search which makes challenged people access the platform and multi-lingual access. Its application is available for Android and iOS devices.

Developer of a keyword-based search engine platform

Tiger Global Management

Bessemer Venture Partners

McGraw-Hill

Goldman Sachs

SAP Ventures

Bain Capital Ventures

Greylock

Sapphire Ventures

Rocket Internet

Dipchand Nishar

NSRCEL

Glynn Capital

China Broadband Capital

EchoVC Partners

2020 Ventures

Juvo Capital

Kaplan Group Investments

Lexus Capital

Edventure Holdings

Princeton Ventures

Global Founders Capital

Digital Economy Ventures

ARC InterCapital

XNode

Moonshots Capital

Ravensbridge Capital

Sprout Capital Partners

DG Ventures

Venture Guides

Rhombuz

Harmony Venture Partners

Stock Capital Banker

Human Capital Development

Platform offering digital marketing solutions for enterprises. It allows users to create profiles and connect to each other. The company provides a linkedin recruiter which helps companies post jobs and leverage the platform talent pool for sourcing. It also offers an online publishing platform for users to publish their content. It generates revenue by offering talent solutions, marketing, and premium membership. The application is available for Android and iOS users.

Platform offering digital marketing solutions for enterprises

Polybase push-down support
I designed and implemented a relational execution framework in JAVA for PolyBase push-down. This enabled split-query execution in PolyBase, so that part of the query can be executed on an external Hadoop cluster. As part of this project, I also designed and implemented a block-based expression evaluator in JAVA for various SQL Server PDW data types. The evaluator provides the exact SQL Server semantics for data types and operators supported for PolyBase push-down.

Split-index support over HDFS data
I prototyped an approach to index HDFS resident data in SQL Server PDW. This technique was able to improve the performance of very selective queries by two orders of magnitude. We designed index in such a way that it can be incrementally updated and index is also useful even if it is stale.

File-format independent split-index support over HDFS data
I designed and prototyped a file-format independent indexing. The goal of this work is to improve the previous split-index approach and make it file-format agnostic. This work is currently in progress.

Hive schema import into PDW
I designed a tool to import the schema of Hive tables into PDW. I am mentoring an RA to build a prototype of this tool. This tool automatically maps the Hive types to appropriate PDW types. For type such as String, the tool also determines the correct length for the corresponding PDW column type.

Quest Software

Zurcher Kantonalbank

Herald Investment Management

Tigerlabs

Allegheny Financial

Arbor Advisors

Aviance Capital Partners

State Street

EuraTechnologies

Geode Capital

Norges Bank

Nuveen

Oppenheimer

Steward Financial

Third Point

Virginia Retirement System

Wealth Enhancement

Arbor Investment Advisors

Thoroughbred Financial

Vulcan Capital

Conestoga Capital Advisors

Hanlon

DPH Ventures

Aspen Vista Capital

Ballast Advisors

ACT Wealth Management

Allied Financial Advisors

Vanderbilt Holdings

Bridges Investment Management

KB Financial

VR Venture Partners

BW Ventures

Knuff

SoftBank Group Corp

Reforged Holdings

Foster Dykema Cabot

Elk River Wealth Management

Cipher International

GreenUp Wealth

Black Capital Investments

Equity West

KPitalism

Digital conglomerate and multinational computer corporation. It is a digital conglomerate and multinational computer corporation that develops, manufactures, licenses supports, and sells computer software, consumer electronics, and personal computers and services. The company offers software products such as Microsoft Windows line of operating systems, Microsoft Office office suite, Internet Explorer (IE) web browser, and Hyper-V virtualization solution. Additionally, it also offers Microsoft Dynamics, an ERP solution, for industries of all sizes. It also offers an 'Xbox' - a gaming console for playing high-density video games. In 2021, the company recorded annual revenues of $184.9B and a net profit of $71.19B.

Digital conglomerate and multinational computer corporation

Session scoped user temp table
I implemented session scoped user temp table in SQL Server PDW. These temp tables are only visible to the active session and are dropped automatically when session disconnects. I also enabled the support of statistics and indexes over user temp tables.

Batch support
I designed and implemented T-SQL batch support in SQL Server PDW. As part of this improvement we built the support for control flow statements (WHILE, CONTINUE, BREAK, IF/ELSE etc.), and local variables. I also designed and implemented an expression evaluator that delegates the evaluation of expressions to SQL Server SMP. This approach resulted in perfect SQL Server alignment without rewriting expression evaluation code in SQL Server PDW.

Stored procedure support
To support stored procedures in SQL Server PDW, I prototyped an approach such that the execution of non-SQL statements happens inside SQL Server SMP and execution of SQL statements happens inside SQL Server PDW. This approach delegates the execution of non-SQL statements to SQL Server SMP and achieves perfect SQL Server SMP alignment without duplicating the functionalities.

SQL Azure defragmentation tool
SQL Azure databases with different SLOs are stored on the same cluster, which results in fragmentation. Because of the fragmentation, higher SLOs databases can’t be provisioned even though the cluster has the capacity. I designed and implemented a defragmentation tool to create the space for SLOs database provisioning by optimally moving the existing databases. 

Skew-aware equi-join and Skew-aware data storage
I prototyped a mechanism to improve the performance of equi-join over skewed data. I also prototyped a skew-aware data placement strategy that reduces the time to load skewed data.

Designed and prototyped bit-vector filtering and semi-join technique to improve the performance of the equi-join in SQL Server Parallel Data Warehouse. Both these techniques reduce the amount of data shuffled to make the tables join compatible. The focus of this project was to prototype these two techniques and evaluate the performance gain. 

Based on the performance evaluation report, the product team decided to ship semi-join support in SQL Server Parallel Data Warehouse.

Every company has a mission. What's ours? To empower every person and every organization to achieve more. We believe technology can and should be a force for good and that meaningful innovation contributes to a brighter world in the future and today. Our culture doesn’t just encourage curiosity; it embraces it. Each day we make progress together by showing up as our authentic selves. We show up with a learn-it-all mentality. We show up cheering on others, knowing their success doesn't diminish our own. We show up every day open to learning our own biases, changing our behavior, and inviting in differences. Because impact matters. 

Microsoft operates in 190 countries and is made up of more than 220,000 passionate employees worldwide.

In achievement and prestige, the University of Wisconsin–Madison has long been recognized as one of America's great universities. A public, land-grant institution, UW–Madison offers a complete spectrum of liberal arts studies, professional programs and student activities. Spanning 936 acres along the southern shore of Lake Mendota, the campus is located in the city of Madison.

This site is designed to support dairy farming
	decision-making focusing on model-based scientific research.
	The ultimate goal is to provide user-friendly computerized
	decision support tools to help dairy farmers improve their
	economic performance along with environmental  stewardship.

Worked on product "Oracle Secure Enterprise Search" (SES). SES allowed enterprise users to securely search private and public content from the enterprise repositories. The product had an extensible framework that enabled users to plugin any enterprise repository and made it available for search. As a developer, I worked on the following projects -  

•	Implemented a new authorization plug-in for Content Database Crawler to remove the group synchronization overhead between Oracle Internet Directory and Content Database.

•	Developed a crawler plug-in for Stellent Content Server using XML Crawler Framework of SES. 

•	Supervised the development of crawler plug-ins for Hummingbird, and Documentum Content Management Server. Both crawlers were developed by a third party vendor.

•	Developed a crawler plug-in for Oracle Files Online (OFO) using the Database Crawler Framework of SES.

State of California

Giza Venture Capital

BNY Mellon

USVP

GGV Capital

Techstars

Foundation Capital

North Bridge

Noro-Moseley Partners

ABS Ventures

Vanguard

Pereg Ventures

Signal Lake

Nordea

Pathstone Federal Street

Berkeley VC International

Launch This

EGI Booster

Coast Funding

LSV Asset Management

Draper Athena

ReignRock Capital Partners

venture CAPITAL funding

Platform offering hybrid cloud infrastructure solutions. The features of the product include secure storage, cloud application management, cloud cost management, content management, security, storage, etc. The product offers compliance, customer engagement services, cloud infrastructure, etc. It provides solutions for banking, human capital management, etc.

Platform offering hybrid cloud infrastructure solutions and email marketing services

Worked on the ‘Genesis’ project to migrate Insead's old database to PeopleSoft. My responsibilities included updating the existing static and dynamic web pages written in Coldfusion script to use the new database.

INSEAD is The Business School for the World. We bring together people, cultures and ideas to develop responsible leaders who transform business and society.With locations in Europe (France), Asia (Singapore), the Middle East (Abu Dhabi), and now North America (San Francisco), INSEAD's business education and research spans four regions. Our 165 renowned Faculty members from 41 countries inspire more than 1,300 degree participants annually in our MBA, Global Executive MBA, Specialised Master’s degrees (Executive Master in Finance and Executive Master in Change) and PhD programmes. In addition, more than 11,000 executives participate in INSEAD Executive Education programmes each year.INSEAD continues to conduct cutting-edge research and innovate across all our programmes. We provide business leaders with the knowledge and awareness to operate anywhere. Our core values drive academic excellence and serve the global community as The Business School for the World.

Staff Software Engineer (TLM) at Google | Ex-LinkedIn, Ex-Microsoft, Ex-Oracle

Nikhil Teletia