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Our people

Here are a few of our top engineers and innovators.

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SPOTLIGHT

Dan McCreary, Distinguished Engineer

Innovation, Research and Development

My current focus at Optum is building knowledge graphs for integrated patient records. I have a background in metadata, semantics, natural language processing (NLP) and NoSQL (Not only SQL). I am the co-author of the highly rated book Making Sense of NoSQL and co-founder of the NoSQL Now! conference.

I am passionate about what I do. I like to exchange knowledge and share tech ideas. You can read my blog post on how graph technology is powering a new age of consumer choice in health care.

And you can read my profile to learn a little more about me.

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Dan enjoys teaching and is involved in the AI Racing League at Optum Tech University.

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A few of our top engineers and innovators

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Jolene Butler, Innovation Lead

Jolene Butler

Innovation Lead

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Josh Cutler, Distinguished Engineer

Josh Cutler

Distinguished Engineer

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Rajeev Cyrus, Distinguished Engineer

Rajeev Cyrus

Distinguished Engineer

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John Fillman, Innovation Lead

John Fillman

Innovation Lead

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Thao Fiore, Innovation Lead

Thao Fiore

Innovation Lead

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Thomas Gilbertson, Innovation Lead

Thomas Gilbertson

Innovation Lead

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Matthew Grose, Distinguished Engineer

Matthew Grose

Distinguished Engineer

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Galina Grunin

Distinguished Engineer

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Rick Hamilton, Senior Distinguished Engineer

Rick Hamilton

Senior Distinguished Engineer

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Christopher Hane, Distinguished Engineer

Christopher Hane

Distinguished Engineer

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Kerrie Holley, SVP and Technology Fellow

Kerrie Holley

SVP and Technology Fellow

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Mike Jacobs,Technology Fellow and SVP of Engineering

Mike Jacobs

Technology Fellow and SVP of Engineering

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Meena Jambulingam, Distinguished Engineer

Meena Jambulingam

Distinguished Engineer

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Russ Lawrence, Distinguished Engineer

Russ Lawrence

Distinguished Engineer

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Jess Lewis

VP of Innovation and R&D 

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Dan McCreary, Distinguished Engineer

Dan McCreary

Distinguished Engineer

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Mark Megerian, Senior Distinguished Engineer

Mark Megerian

Senior Distinguished Engineer

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Ravi Narasimhan, Innovation Lead

Ravi Narasimhan

Innovation Lead

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Vijay Nori, Distinguished Engineer

Vijay Nori

Distinguished Engineer

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Christian Oestreich

Distinguished Engineer

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Randy Olinger, Distinguished Engineer

Randy Olinger

Distinguished Engineer

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Somadev Pasala, Distinguished Engineer

Somadev Pasala

Distinguished Engineer

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Bharatkumar Ramasubramanian, Distinguished Engineer

Bharatkumar Ramasubramanian

Distinguished Engineer

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Mohan Reddy

Distinguished Engineer

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Lee Shirkey, Innovation Lead

Lee Shirkey

Innovation Lead

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Tom Sullivan, Innovation Lead

Thomas Sullivan

Innovation Lead

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Kathy Tzeng, Senior Distinguished Engineer

Kathy Tzeng

Senior Distinguished Engineer

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Laura Vanden Heuvel, Innovation Lead

Laura Vanden Heuvel

Innovation Lead

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Matt Versaggi, Distinguished Engineer

Matt Versaggi

Distinguished Engineer

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Julie Zhu, Distinguished Engineer

Julie Zhu

Distinguished Engineer

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Get the latest tech insights and deep dives.

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Join us

Help us solve the most wicked problems in health care through research, development and emerging technologies.

See open positions

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