Management Team

Management Team

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Mr. Seraphin is President & Chief Executive Officer. With over 20 years of experience managing global businesses, Mr. Seraphin brings the overall vision and leadership necessary to drive future growth for the company. Prior to this role, from October 2015 to June 2018, Mr. Seraphin was the senior vice president and general manager of the Memory and Interface Division, leading the development of the company’s innovative memory architectures and high-speed serial link solutions. From October 2013 to June 2014, Mr. Seraphin also served as the vice president of Worldwide Sales and Operations where he oversaw sales, business development, customer support and operations across the various business units within Rambus. In June 2014, Mr. Seraphin was promoted to senior vice president of Worldwide Sales and Operations. Mr. Seraphin started his career in 1985 as a field application engineer at NEC and later joined AT&T Bell Labs, which became Lucent Technologies and Agere Systems (now Broadcom Inc.). During his 18 years at Agere, Mr. Seraphin held several senior positions in sales, marketing and general management, culminating in his last position as executive vice president and general manager of the Wireless Business Unit. Following this, Mr. Seraphin held the position of general manager of a GPS startup company in Switzerland and was vice president of Worldwide Sales and Support at Sequans Communications. During his career, Mr. Seraphin has advised and supported companies in both the product and IP markets. Mr. Seraphin holds a bachelor’s degree in Mathematics and Physics and a master’s degree in Electrical Engineering from Ecole Superieure de Chimie, Physique, Electronique, based in Lyon, France where he majored in Computer Architecture. Mr. Seraphin also holds an MBA from the University of Hartford and has completed the senior executive program of Columbia University.

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Cliff Burnette is the senior vice president and chief human resources officer (CHRO) of Rambus. Cliff joined the company in 2019 and brings over 20 years of experience leading global human resources (HR) operations for publicly traded companies. He is responsible for human resources, corporate strategy and Rambus’ collaborative culture. Cliff has expertise in employee relations, organizational development along with extensive compensation strategy. Before coming to Rambus, Cliff was at Cypress Semiconductor, where he was the vice president of human resources leading HR, culture awareness and transformation, learning and development and post-merger employee integration. Prior to Cypress Semiconductor, Cliff was the director of North America human resources at Ottobock and held various roles at Spansion, Inc. and Advanced Micro Devices (AMD).


Cliff has a bachelor’s degree in Business Management and Marketing from Texas State University and a master’s degree in Human Resources Management and Organization Development from The University of Texas at Austin.

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Sean Fan is Chief Operating Officer for Rambus. Before joining Rambus, Sean served as a corporate vice president and general manager at Renesas Electronics, in charge of the datacenter business unit with full P&L responsibilities. Previously, Sean held various senior executive positions at Integrated Device Technology Inc. (IDT) for over 19 years, prior to its acquisition by Renesas in March 2019.  He was instrumental in creating and growing several industry-leading businesses such as memory interface, timing, power management, smart metering, and telecom/networking products. Before joining IDT, he worked at Lucent Microelectronics, Mitel Semiconductor, and National Lab of Telecom in China in mostly R&D roles. From 2009 to 2012, Sean was a board member of JEDEC, a leading standardization organization for the microelectronics industry, and he also served on the board of directors for privately held Accent International.


Sean earned a master’s degree in Computer Engineering from University of Cincinnati and a bachelor’s degree in Computer and Telecom from Beijing University of Posts and Telecommunications. He continued his Executive Management education at Stanford University and the Wharton School of Business.

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Hari Kannan is Sr. Vice President of Strategy at Rambus. As an experienced technologist, he plays a prominent role in defining Rambus’ growth strategies. 


He previously served at Ericsson as Executive Vice President (North America), Head of Strategy and GTM, and as a member of the Executive Leadership Team. He was responsible for strategy development and execution, commercial business and pricing, partnerships and ventures, and special projects. 


In his prior tenure at McKinsey, he served leading semiconductor memory and chipset providers, telecom giants, equipment providers and cloud technology leaders on transformation and growth topics. He was also a leading member of the High-Tech Private Equity and M&A counsel. Earlier in his career, Hari spent a decade in the storage industry, most notably at EMC (acquired by Dell) holding roles in product development, product management, pre-sales and within the CTO office.


Hari brings a unique combination of product/offering development (patent holder), strategy and go-to-market experience to drive growth and transformation initiatives. His global experience and network spans North America, South Korea, Western Europe, Japan, China and India. Hari’s high-tech knowledge across multiple technology pillars, and people leadership skills, have earned him a reputation for consistent results delivery, thought leadership and global deal making.


Hari has graduate degrees in Computer Science (M.S. from Worcester Polytechnic Institute) and Business (MBA from Wharton, University of Pennsylvania).


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Rahul Mathur is responsible for the overall financial direction of the company.


Prior to joining Rambus, Mr. Mathur served as senior vice president of finance at Cypress Semiconductor where he was responsible for financial planning and investor relations for the $2.1B provider of embedded memory, microcontroller, and analog semiconductor system solutions. Prior to that, Rahul served as vice president of finance at Spansion (later acquired by Cypress). Rahul has previously worked at numerous technology companies such as NetSuite and KLA-Tencor, and started his career as a consultant with Arthur Andersen.


Mr. Mathur holds a Bachelor of Arts in applied mathematics from Dartmouth College and an MBA from the Wharton School of Business at the University of Pennsylvania.

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Jeff Moore is SVP of Global Operations. Jeff joined Rambus in 2014 to build an operations team in support of the then nascent Buffer Chip business; a charter which has grown in scope to cover operations for all of Rambus. Jeff and his teams are responsible for Supply Chain and Procurement, Program Management, Orders Management, Quality Engineering, Product and Test Engineering, IT and Facilities. Jeff joined Rambus from Fairchild Semiconductor, and has held operations and engineering leadership roles at Infineon and LSI/Agere/Lucent. Jeff began his career at Bell Labs, Murray Hill where he was responsible for one of several InGaAsP Lightwave Device design groups.


Jeff earned his bachelor’s degree at UC Davis and Ph.D. in Physical Chemistry from the University of Pittsburgh. Jeff has Financial Analysis training from Wharton, and has served as an adjunct professor for Lehigh University Engineering, delivering classes in Operations Theory, Engineering Economy, Probability and Statistics, as well as serving as a thesis advisor for the Industrial Engineering department.

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Kit Rodgers is the senior vice president of Technology Partnerships and Corporate Development for Rambus, where he is responsible for building and growing the business across the various focus areas. Prior to this role, Kit was the senior vice president of Licensing and Technology Partnerships, building and growing Rambus’ technology licensing business and customer-focused IP strategies.


Before joining Rambus, Kit was vice president of Business Development and Licensing for Cryptography Research, Inc., which was acquired by Rambus in in 2011. Kit joined Cryptography Research in 2003 and has extensive experience in building teams and businesses, including business development, technology licensing, operations, finance and corporate strategy. Before joining Cryptography Research, Kit held positions at Acumen Sciences, 12 Entrepreneuring, Scient, and Stanford University.


Kit holds a bachelor’s degree and a master’s in engineering from Stanford University, where he was a Mayfield Entrepreneurship Fellow.

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John Shinn is Rambus’ Senior Vice President and General Counsel. John joined Rambus in October 2016 and assumed the role of General Counsel in 2021. Prior to Rambus, John held senior legal executive roles at both private and public companies in the Silicon Valley, where he was responsible for corporate governance, compliance, intellectual property, commercial transactions, litigation and employment law. John has also worked in private practice with the law firm of Wilson Sonsini Goodrich & Rosati, advising high tech and emerging growth companies on technology transactions and mergers and acquisitions. John began his legal career as a litigation attorney with a boutique intellectual property and securities litigation law firm in San Jose.


John is a member of the State Bar of California and earned a Juris Doctor from Santa Clara University and his bachelor’s degree in American and European History from Stanford University.