ExtraHop Leadership Team

Meet the leaders behind our vision, innovation, and growth.

Arif Kareem, CEO and President

Arif Kareem

CEO and President

Arif Kareem leads ExtraHop as the Chief Executive Officer, enabling the growth and driving execution of company strategy. Arif holds over 30 years of experience with technology companies formulating growth strategies, driving innovation, and building teams that deliver superior results.

Before joining ExtraHop, Arif served as President of Fluke Networks, a Danaher Company. Arif helped Fluke Networks, an industry leader in enterprise wide testing and monitoring, accelerate its growth through innovation and expansion of its product portfolio, sales force effectiveness, and acquisitions. Previously, Arif was Vice President and General Manager of Tektronix and Senior Vice President and General Manager at RadiSys.

He holds an MSEE degree from Lehigh University and an MBA from the University of Oregon.

Connect with Arif on LinkedIn!

Jesse Rothstein, CTO and Co-Founder

Jesse Rothstein

CTO and Co-Founder

Jesse Rothstein is co-founder, CTO and Chairman of the Board at ExtraHop Networks. Jesse's technical vision and expertise in enterprise networking provide ExtraHop with a competitive edge in the industry. With a world-class team of engineers behind him, Jesse is responsible for the technical direction and architecture of the ExtraHop platform.

Jesse co-founded ExtraHop in 2007 and served as CEO until July 2016. Before ExtraHop, Jesse held a six-year tenure at F5 Networks where he was a Senior Software Architect and co-inventor of the TMOS platform at F5. Additionally, Jesse was the architect and project lead for the BIG-IP v9 development effort and the technical lead for frameworks, clustering, and performance. Before F5, he worked in product development at Motive Communications and the Trilogy Development Group.

Jesse specializes in designing and implementing high-performance networking products. Jesse holds bachelor's degrees in Computer Science and Electrical Engineering from Rice University.

Connect with Jesse on LinkedIn!

Raja Mukerji, CCO and Co-Founder

Raja Mukerji

Chief Customer Officer and Co-Founder

Raja Mukerji is the Chief Customer Officer (CCO) and co-founder at ExtraHop Networks where he is responsible for Customer Services, Solutions Architecture, Business Development, and Technical Alliances. Raja drives customer success, leveraging his operational background in the financial-services industry.

Raja co-founded ExtraHop in 2007, after a seven-year tenure at F5 Networks where he was a Senior Software Architect and co-inventor of the TMOS platform. Raja was a lead developer behind the BIG-IP v9 product and the major accounts liaison for critical customer-facing issues within Product Development. Before F5, Raja worked as a Technology Architect at Strong Capital Management.

Raja is a renowned expert in application delivery and network protocols. He was involved in the FreeBSD project and contributed several enhancements to its TCP stack. Raja holds a bachelor's degree in Computer Engineering from the Milwaukee School of Engineering.

Connect with Raja on LinkedIn!

John Matthews, CIO

John Matthews


John Matthews is the Chief Information Officer at ExtraHop Networks, where he oversees the continuous expansion of the ExtraHop IT environment and counsels the company's enterprise customers as they evolve their IT operations.

Before joining ExtraHop, John led IT strategy at F5 Networks, where he was CIO for nearly a decade. While at F5, John provided strategic technology and management assessments, as well as a common-sense approach to IT operations that provided the best capabilities to the business with the least risk. John guided F5 to the early adoption of new technologies, such as SaaS and cloud computing, to drive costs down while raising overall quality.

Previously, John served as an IT leader for MSN Operations at Microsoft, as CIO at Towne Exploration Company, and as Director of IT Operations at Adobe.

Connect with John on LinkedIn!

Bill Ruckelshaus, CFO

Bill Ruckelshaus


Bill Ruckelshaus is an experienced public company executive with a passion for technology-driven businesses – ranging from VC-backed pre-IPO firms, to profitable companies with $500M + in annual revenue. Bill is a hands-on executive with experience in strategy, technology, operations and M and A. He succeeds as a change leader who sets the vision and then aligns operations, processes and people to drive value creation.

Bill motivates highly engaged teams to execute. He attracts top talent, structures organizations to maximize effectiveness and drives accountability across teams by emphasizing a 'common purpose' culture. Bill embraces change and leads with passion, energy and humor.

Connect with Bill on LinkedIn!

Chris Lehman

Chris Lehman

Chief Revenue Officer

Chris Lehman is the Chief Revenue Officer at ExtraHop, where he leads global sales, sales engineering, channel sales, inside sales, and sales enablement. To his role at ExtraHop Chris brings 20 years of experience building high-growth sales organizations at scale for market-leading and market-making enterprise IT solutions.

Before joining ExtraHop, Chris served as Vice President of Americas Sales and Channel at FireEye. In this role, he was the driving force and architect of FireEye's current go-to-market strategy running a $500 million business, and leading a team of over 250 sales, channel, and business development professionals. Prior to FireEye Chris held a series of sales leadership positions at Salesforce.com and Dell/EMC.

Chris holds a B.A. in Communications from the Pennsylvania State University.

Connect with Chris on LinkedIn!

Bryce Hein, SVP of Marketing

Bryce Hein

Chief Marketing Officer

Bryce Hein is the Chief Marketing Officer at ExtraHop Networks, where he leads the company's global brand and marketing efforts, working closely with teams across the organization to drive awareness, sales, and growth. To his role at ExtraHop, he brings more than two decades of experience working at both established enterprises and start-ups in corporate, product, and partner marketing roles, as well as in-depth knowledge of data storage, data management, and analytics.

Prior to ExtraHop, Bryce held VP of Marketing positions at both Quantum and Rocana. His experience also spans roles in product marketing, field and partner enablement, and business line management at Quantum and ADIC.

Bryce received his master's degree in Computer Science from Eastern Washington University and his MBA from the University of Washington.

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Tom O'Brien, VP, General Counsel and Corporate Secretary

Tom O'Brien

VP, General Counsel and Corporate Secretary

Tom O'Brien is Vice President, General Counsel and Corporate Secretary at ExtraHop Networks, where he is responsible for legal, compliance, and corporate governance matters.

Before joining ExtraHop in 2014, Tom represented public and private technology companies in M&A, private financing, and public markets transactions with the Seattle office of Wilson Sonsini Goodrich & Rosati. Earlier in his career, he represented private equity funds and their portfolio companies in M&A and secured lending transactions with the San Francisco office of Kirkland & Ellis LLP, and clerked for the Honorable Leo Strine, Jr. at the Delaware Court of Chancery.

Tom is admitted to practice law in Washington and California. He holds a J.D. from the University of Pennsylvania Law School, where he served on the Law Review, a Certificate of Business and Public Policy from the Wharton School of Business, and a B.A. in business administration from the University of Washington.

Connect with Tom on LinkedIn!

Jackie Haggerty, Sr. Director of Talent Development

Jackie Haggerty

Head of People

Jackie Haggerty, SHRM-SCP, SPHR is the Sr. Director of Talent Development at ExtraHop, where she leads global recruiting and talent strategies. Jackie has 20 years of experience building programs to enrich the employee experience and grow talent to enable success for the organization and the individual. As ExtraHop's first HR person and DEI leader, Jackie's passion and focus has always centered around building an inclusive and healthy work environment where people can develop their careers and come to work as the person they truly are.

Before joining ExtraHop, Jackie co-owned an HR consulting company and led people programs at Seattle firms including Amazon, msnbc.com, Getty Images, and Sesame Communications.

Jackie holds a B.A. in Business Management | Human Resources from Western Washington University.

Connect with Jackie on LinkedIn!

Read about the ExtraHop Board of Directors and Investors