John F. Sheridan has served as our President and Chief Executive Officer since March 2019 and as a member of our Board of Directors since June 2019. Prior to joining our company, Mr. Sheridan served as Chief Operating Officer of Rapiscan Systems, Inc., a provider of security equipment and systems, from March 2012 to February 2013. Mr. Sheridan served as Executive Vice President of Research and Development and Operations for Volcano Corporation (NASDAQ: VOLC), a medical technology company, from November 2004 to March 2010. From May 2002 to May 2004, Mr. Sheridan served as Executive Vice President of Operations at CardioNet, Inc., a medical technology company. From March 1998 to May 2002, he served as Vice President of Operations at Digirad Corporation, a medical imaging company. Mr. Sheridan holds a B.S. in Chemistry from the University of West Florida and an M.B.A. from Boston University.
David Berger has served as our Executive Vice President, Chief Business Operations and Compliance Officer since November 2020 and is responsible for the Company’s legal, quality, regulatory and customer technical support functions. He previously served as Executive Vice President, Chief Legal and Compliance Officer since April 2019, and as Executive Vice President and General Counsel, having overseen the legal department since August 2013. Prior to joining Tandem, he served as Senior Vice President, General Counsel and Corporate Secretary at Senomyx, Inc., which he joined in 2008. His prior experience includes serving as Vice President, Legal Affairs at Biosite Incorporated, where he was the managing attorney responsible for all commercial aspects of legal affairs, and serving as an attorney with Cooley Godward LLP. Mr. Berger received his J.D. at Stanford Law School and a B.A. in Economics from the University of California, Berkeley.
Brian Hansen joined us as our Executive Vice President and Chief Commercial Officer in February 2016 with more than 20 years of sales and leadership experience in the clinical diagnostics industry. Prior to joining Tandem, Mr. Hansen was Chief Commercial Officer at Adaptive Biotechnologies Corporation. Before that, he held executive and senior-level positions at Genoptix (a Novartis-owned company), Gen-Probe (acquired by Hologic in 2012) and Fisher Scientific. Mr. Hansen received an MBA from the School of Business at San Diego State University and a B.S. in Business Administration from the University of Missouri-Columbia.
Elizabeth Gasser was appointed Executive Vice President Strategy and Corporate Development in January 2020. She previously worked as an independent advisor providing strategic and corporate development solutions to boards and executive teams. Prior to this, Ms. Gasser was VP of Corporate Strategy at Qualcomm Technologies, Inc. where she worked from July 2006 to June 2017. Ms. Gasser has over 20 years of strategy and transaction experience, with an emphasis on developing and leading market entry and growth strategies for connected ecosystems and data-driven businesses. Ms. Gasser holds a B.A. and M.A. in Economics from the University of Cambridge.
Susan Morrison was appointed Chief Administrative Officer in September 2013. She previously served as our Vice President, Human Resources, Corporate and Investor Relations since April 2013. Ms. Morrison served as our Director, Corporate and Investor Relations, from January 2009 to March 2013, and was our Director, Corporate Services from November 2007 to December 2008. Prior to joining our company, Ms. Morrison held various positions in Corporate and Investor Relations at Biosite from August 2003 through November 2007. Ms. Morrison holds a B.A. in Public Relations from Western Michigan University.
Leigh Vosseller was appointed Chief Financial Officer effective January 1, 2018. Previously, Ms. Vosseller served as our Senior Vice President, Finance from August 2017. Ms. Vosseller joined Tandem in August 2013 as Vice President, Finance. Prior to joining Tandem, Ms Vosseller served in various senior finance positions in the healthcare industry. Most recently, she was Vice President and CFO of Genoptix, Inc. (a Novartis company). Prior to that she held a senior finance position at Biosite Incorporated where she played a key role in developing the financial and administrative infrastructure for international expansion. Ms. Vosseller is a certified public accountant (inactive) and holds a bachelor’s degree in accounting from Missouri State University.
Tom Fox was appointed Vice President, Human Resources in August 2017. He previously served as Senior Director of our Human Resources Department. Mr. Fox has more than 20 years of experience in Human Resources management. Prior to joining Tandem, Mr. Fox served as Director of Human Resources for the Oncology-Genoptix Division of Novartis Pharmaceuticals. Before that, he held various HR leadership positions including Director of Human Resources for the West Division of BDO, USA LLP; Director of HR Client Services for Option One Mortgage Company (a subsidiary of H&R Block Corp.) and Director of Labor and Employee Relations at The Walt Disney Company, Disneyland Resort. Mr. Fox began his career at Chevron Corporation and holds a B.S. in Business Administration from California State University, Fresno and a M.S. in Labor Relations and Human Resources Management from Michigan State University.
Jim Leal has served as our Senior Vice President, Operations since August, 2017. Mr. Leal joined Tandem in October 2010 as Vice President, Operations bringing 25 years of manufacturing and engineering experience. Previously, Mr. Leal was the Vice President of Manufacturing and Field Support for Volcano Corporation and held Director Roles with CardioNet, Inc. and Digirad Corporation. He held Senior Engineering roles with FlipChip Technologies and Hughes Aircraft Company. Jim has won several awards including a Hughes Aircraft Doctoral and Masters Fellowship and was a recognized nominee for Most Promising Hispanic Engineer of the Year Award. Mr. Leal is a published author and patent holder. He is a University of Arizona graduate with a Ph.D. in Materials Science and Engineering.
Manuel Jaime joined us as our Senior Vice President, Technology and Digital Health in February 2019 with more than 20 years of experience in incubating and commercializing emerging products and services in the high-tech industry. Prior to joining Tandem, Mr. Jaime was Chief Technology Officer at Cedar Electronics. Before that, he was a co-founder and Chief Executive Officer of ClipCast Technologies, and he previously held various roles at CardioNet and Qualcomm. He also is an inventor on more than 20 patents relating to connected devices, wireless systems, video platforms, and low-power radio frequency. Mr. Jaime is a graduate of the Leaders for Global Operations (LGO) Program at the Massachusetts Institute of Technology (MIT) Sloan School of Management where he received an MBA and a MS in Mechanical Engineering. He also holds a BS in Mechanical Engineering and a MS in Systems Engineering from MIT.
Julia Kensick was appointed Vice President, Quality in August 2017. She previously served as Senior Director of Quality and has overseen the department since September of 2013. Ms. Kensick has more than 25 years of experience in quality, regulatory and customer affairs. Prior to joining Tandem, Ms. Kensick served as Director of Quality for the Infusion Business Unit of CareFusion. Before that, she held positions including Executive Director of Regulatory and Customer Affairs for Ophthonix and Quality Assurance Director at American Medical Systems (Formerly CryoGen Inc.). Ms. Kensick began her career in the Vascular Intervention Group at Guidant and holds a Bachelor of Science in Mechanical Engineering from San Diego State University.
Michael Fechko was appointed VP of Manufacturing Operations in September 2019 with more than 20 years of experience in manufacturing and engineering in the medical device and semiconductor industries. He previously served as Senior Director of Manufacturing, following serving in successive roles in operations at Tandem since 2011. Prior to joining Tandem, Mr. Fechko was the Senior Manager of Manufacturing Engineering and Facilities at Volcano Corporation. He began his career at NEC Electronics. Mr. Fechko holds a B.S. in Mechanical Engineering from California State University, Chico.
Arun Kumar joined us as Vice President, Supply Chain in August 2019. He has broad executive experience in supply chain, service, and customer operations at companies such as Dexcom, Amazon, Dell, and FedEx. In his most recent roles at Dexcom and Stella & Dot he had global responsibility for warehousing, logistics, and distribution. From 2003 to 2009, he was Executive Director of Global Operations, Logistics, and Fulfillment at Dell, Inc. In his role as Managing Director at FedEx, from 1995 to 2000, he had responsibility for the Indian subcontinent in Mumbai, India, as well as for National Hub Operations, in Memphis, Tennessee. Mr. Kumar holds a master's degree in mechanical engineering from Old Dominion University.
Michael Michaud was appointed VP of Research and Development in September 2019 with more than 10 years of engineering experience in the medical device industry. He previously served as Senior Director of Research and Development, following serving in successive R&D roles at Tandem since 2009. Prior to joining the Company, Mr. Michaud was a research and development engineer for Trimedyne, Inc. and before that was product development engineer for Applied Medical. Mr. Michaud holds a B.S. in Mechanical Engineering from the University of Michigan.
Dave Nuttall joined us in July 2019 as our Vice President of Finance, bringing with him over 30 years of medical device business experience. Prior to Tandem, Dave spent 13 years with Philips Healthcare as the Head of Finance, Therapeutic Care Division. Previously, Mr. Nuttall held finance-related executive roles in the Respiratory Care Division of Medtronic. In his 18 years with the company, he also led M&A activities and worked in operations. Mr. Nuttall holds a bachelor’s degree in accounting from Fort Lewis College.
Ross Sylvia joined us as our Vice President, Marketing and Product Management in April 2019, bringing with him more than 15 years of experience as an executive in the medical device, health sciences, and biotechnology industries. Prior to joining Tandem, Mr. Sylvia was Global Vice President, Thoracolumbar Fixation and Pediatrics at San Diego-based NuVasive, a medical device company focused on developing innovative surgical products and solutions for spine surgery. Mr. Sylvia has held a variety of leadership positions in product management, market development, marketing, and sales at NuVasive, K2M, Inc., and Johnson & Johnson. Mr. Sylvia holds a B.S. in marketing and computer information systems from Bryant University.
Christina Sun joined us as Vice President, Corporate Controller in March 2020. Prior to this, she served as Corporate Controller at NeoGenomics, Inc. beginning in May 2017. Ms. Sun originally joined Tandem in October 2013 where she most recently served as Director of Accounting and SEC Reporting. Ms. Sun has 15 years of experience as a certified public accountant. She began her career at Ernst & Young, LLP where she ultimately served as a Senior Manager of Assurance Services. Ms. Sun holds a Master of Science in Accountancy from San Diego State University.
Karrie Rexford was appointed Vice President and General Counsel in July 2020. Ms. Rexford has more than 20 years of corporate legal experience with expertise in medical device, software and technology licensing, intellectual property, clinical, development, retail, manufacturing, real estate, and global commercial transactions. Prior to joining Tandem, Ms. Rexford worked for Align Technology, Inc. for 16 years initially as Associate General Counsel of Strategic Commercial Transactions and then as Vice President Global Associate General Counsel, Direct to Consumer. Align is a global medical device company delivering clear aligner orthodontic and restorative treatments. She began her career in Silicon Valley working for the law firm of Wilson Sonsini Goodrich & Rosati and also held positions with several software companies including Netscape Communications Corporation, Sun Microsystems, Inc. and LoudCloud, Inc. She received her J.D. at Lincoln Law School and a B.A. from California Polytechnic San Luis Obispo.
Peter Rossiter joined us as Vice President of Information Technology in May 2020 with more than 30 years of IT experience domestically and abroad. He previously worked as an independent advisor creating technology and data strategies to drive digital transformation for Fortune 500 companies. Prior to this, he held various executive leadership positions with Honeywell, where he most recently was VP of Digital Offerings. Mr. Rossiter holds a bachelor’s degree in chemical engineering from the University of Sydney in Sydney, Australia.
Josh Juster joined us in June 2020 as Vice President of Sugarmate. He previously founded and developed the Sugarmate app, a comprehensive tool for people with diabetes using continuous glucose monitors. Mr. Juster has more than 15 years of experience designing and developing websites and applications. He was Co-founder and Chief Product Officer of GoTime, which created a popular mobile app and data platform, and was acquired by Infogroup, a leading business data provider. Mr. Juster began his career at Microsoft as a Program Manager. He holds a Bachelor of Science and Master of Engineering in Computer Science from the Massachusetts Institute of Technology.
Stephanie Habif was appointed Vice President, Behavioral Sciences in August 2020. She previously served as our Senior Director of Behavioral Sciences and has overseen the department since December of 2017. Dr. Habif has more than 20 years of experience as a behavioral scientist, leading healthcare teams in the design of consumer engagement to improve outcomes. Prior to joining Tandem, Dr. Habif split her time between industry and academia – most recently as Senior Strategist at The Design Lab UC San Diego, an institute focused on providing research, education and community interaction to advance best practices in human-centered design. She has held faculty appointments at several universities including Stanford, Columbia, and Victoria University of Technology in Australia. Dr. Habif is the founder of Habif Health and Performance LLC, a consulting firm specializing in research, design and strategy for consumer healthcare technologies. Dr. Habif holds a Bachelor of Arts in English Literature and Psychology from Washington University in St. Louis, a Master of Science in Counseling Psychology from Springfield College as well as a Doctor of Education in Health and Behavior Studies from Columbia University.
Jeff Brown joined us as Vice President, Program Management in November 2020. Jeff brings more than 20 years of cross-functional project and program management experience across a number of industries, including digital health and life sciences. In his most recent roles at Capsule Technologies and Qualcomm Life, he held senior leadership positions developing and leading project management teams with a focus on execution process excellence. Prior to this, Mr. Brown served as the Senior Director of Programs at Qualcomm where he led the telecom products and services, transportation telematics and mobile chipset and software development project management offices. He began his career at Intel Corporation where he held numerous positions spanning supply chain, quality and reliability engineering, and Project Management. Mr. Brown is a certified Project Management Professional and holds a B.S. in Electrical Engineering from the University of Washington.