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David Greczner

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David Greczner

Programming Counselor | Citadel

New York, New York, United States

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David Greczner

Summary

David Greczner is a seasoned technology professional with extensive experience in software development and engineering, particularly in the finance sector. Currently serving as a VP and Technical Lead at Two Sigma, he has a proven track record of leading critical projects and developing innovative solutions in equities and brokerage technology. His expertise spans a wide range of technologies including Oracle, HBase, and Hadoop, showcasing a strong foundation in both software engineering and data management. David's career includes significant roles at Barclays Investment Bank, where he developed software for data distribution and pricing information. With a Bachelor of Science in Computer Science from Cornell University, he combines academic knowledge with practical experience. David is known for his ability to adapt to new challenges and technologies, making him a valuable asset in fast-paced environments. His interests lie in leveraging technology to improve data efficiency and accessibility in financial services.

General

Specialist

Technical Background

Leadership Experience

Long-Term Tenure

Professional interests

Emerging Technologies

Leadership Development

Innovation

Organisational experience

Corporate Experience

David Greczner

Work Experience

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Equities Engineer at

Citadel

March 2025 - Present

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David Greczner

Education

Cornell University, Bachelor of Science, Computer Science

January 2008 - January 2012

Frequently Asked Questions about David Greczner

What is David Greczner email address?

David Greczner's primary email address is ******@cornell.edu. To view the full verified email and additional contact details, sign up for free with Muraena.

What company does David Greczner work for?

David Greczner is a Programming Counselor at Citadel.

Where David Greczner graduated from?

David Greczner holds a degree in Minor: Information Science Concentration: Data-Intensive Computing, Software Engineering, Systems Computing from Cornell University.

How can I directly contact David Greczner?

To contact David Greczner directly, you can use the email address ******@cornell.edu. Complete contact information is available upon registration with Muraena.

Who is David Greczner?

David Greczner is a seasoned technology professional with extensive experience in software development and engineering, particularly in the finance sector. Currently serving as a VP and Technical Lead at Two Sigma, he has a proven track record of leading critical projects and developing innovative solutions in equities and brokerage technology. His expertise spans a wide range of technologies including Oracle, HBase, and Hadoop, showcasing a strong foundation in both software engineering and data management. David's career includes significant roles at Barclays Investment Bank, where he developed software for data distribution and pricing information. With a Bachelor of Science in Computer Science from Cornell University, he combines academic knowledge with practical experience. David is known for his ability to adapt to new challenges and technologies, making him a valuable asset in fast-paced environments. His interests lie in leveraging technology to improve data efficiency and accessibility in financial services.

David`s contact details

mail

******@cornell.edu

**************@twosigma.com

**************@citadel.com

Colleagues

Dung Nguyen

Managing Director

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Michael Mattioli

Infrastructure Architect

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Matthew Mizrahi

Technology Analyst

Daniel Deng

Portfolio Manager

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Myriam Sobotka

Head of Counterparty Risk & Onboarding Team

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Ben Kaye

Senior Broker

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Samuel John

Software Engineer

Kilian Gersing

Mechanical Engineering Intern

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Pablo Salame

Head of Global Credit

Martin M

Analyst Intern

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