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Our products only tell half the story. At Tandem Diabetes Care, we put as much effort into standing behind our products as we do into designing them. The passion within each individual who works at Tandem is apparent. From product developers and engineers, to the people on our 24/7 customer support team, everyone has the drive to succeed and the desire to make a difference in people’s lives.

 
 

Board of Directors

Kim Blickenstaff
Chair of the Board of Directors

Mr. Blickenstaff currently serves as Chair of our board of directors following his transition from the Executive Chair role in March 2020. Prior to serving as Executive Chair, Mr. Blickenstaff served as our President and Chief Executive Officer from September 2007 to March 2019. He has been a member of our board of directors since September 2007. Prior to joining us, Mr. Blickenstaff served as Chair and Chief Executive Officer of Biosite Incorporated, a provider of medical diagnostic products, from 1988 until its acquisition by Inverness Medical Innovations, Inc. in June 2007. Mr. Blickenstaff previously served as a director of Medivation, Inc., a biotechnology company, from 2005 to 2016, until its acquisition by Pfizer, and as a director of DexCom, Inc. (Nasdaq: DXCM), a provider of continuous glucose monitoring systems, from June 2001 to September 2007. Mr. Blickenstaff serves as a director and member of the compensation and audit committees of Nuvation Bio Inc. (NYSE: NUVB), an oncology biopharmaceutical therapy company. Mr. Blickenstaff was formerly a certified public accountant and has more than 20 years of experience overseeing the preparation of financial statements. He holds a BA in Political Science from Loyola University, Chicago, and an MBA from the Graduate School of Business, Loyola University, Chicago.

Dick Allen 
Lead Independent Director
Mr. Allen has served as our Lead Independent Director since March 2019 and on our board of directors since July 2007. He previously served as the Chair of our board of directors from August 2007 to January 2013 and from January 2016 to February 2019. Mr. Allen is directly engaged in the diabetes community through his personal involvement with JDRF, a nonprofit diabetes research organization, and the Mary & Dick Allen Diabetes Center at Hoag Memorial Hospital Presbyterian. Mr. Allen served as a member of the International Board of Directors of JDRF from July 2008 to June 2014, and as its Chair from July 2012 to June 2014. Mr. Allen has more than 50 years of experience in the health care industry and was previously the President of DIMA Ventures, Inc., a private investment firm providing seed capital and board-level support for start-up companies in the healthcare field. He was a co-founder and Vice President of Caremark, Inc., a home infusion therapy company later acquired by Baxter International. He was also a co-founder and director of Pyxis Corporation, later acquired by Cardinal Health, Inc. Mr. Allen received a BS (cum laude) in Industrial Administration from Yale University and an MBA from Stanford University Graduate School of Business where he served on the faculty as a Lecturer in Strategic Management for 13 years.

Peyton Howell
Ms. Howell joined our board of directors in August 2020. Ms. Howell has more than 25 years of extensive reimbursement, health insurance, and patient access experience across a broad range of disease states in the hospital, physician, pharmacy and home care settings. Ms. Howell is currently the Chief Commercial and Strategy Officer at Parexel International, a leading global clinical research organization servicing the life sciences industry. Prior to joining Parexel, Ms. Howell held a wide range of senior leadership positions at AmerisourceBergen, including leading Global Sourcing and Manufacturer Relations and advancing specialty and biotech products and solutions for physicians, health systems and specialty pharmacies. She was a founder and President of Lash Group, a patient support services company, and an early pioneer of programs to support patient access, reimbursement, and adherence to new therapies including services related to diabetes, such as patient assistance and reimbursement support for continuous glucose monitors. Ms. Howell is a recognized national speaker on health policy, patient access and reimbursement issues. She has served as Director of the AmerisourceBergen Foundation, the National Association of Chain Drug Stores Foundation, and the Healthcare Distribution Alliance Foundation. Ms. Howell received a BA in Speech Communication from the University of Illinois at Urbana-Champaign and a Master’s of Health Administration from The Ohio State University.

Kathleen McGroddy-Goetz, PH.D.
Dr. McGroddy-Goetz has served on our board of directors since June 2020. She has more than 25 years of experience leading global teams across business development, strategy, research and development, and product management. She has commercialized pioneering technologies spanning from microelectronics through cloud, advanced data analytics, artificial intelligence, hardware, software, and middleware with an emphasis on healthcare and life sciences applications. From October 2018 through June 2021, Dr. McGroddy-Goetz served as the Global Head of Strategic Partnerships at Medidata Solutions, a Dassault Systemès Company, where she also concurrently held other strategy, alliances and marketing executive roles. Previously, she held various leadership positions at IBM beginning in 1992, and most recently was Vice President, Strategy and Innovation, IBM Watson Health. Dr. McGroddy-Goetz received a BS in Physics from SUNY Binghamton and a PhD in Molecular Biophysics from Cornell University.

John Sheridan
Mr. Sheridan has served on our board of directors since June 2019 and as our President and Chief Executive Officer since March 2019. Prior to that, Mr. Sheridan served as our Executive Vice President and Chief Operating Officer since April 2013. Prior to joining us, 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, 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, now operating as BioTelemetry, Inc. (Nasdaq: BEAT). From March 1998 to May 2002, he served as Vice President of Operations at Digirad Corporation, a medical imaging company. Mr. Sheridan serves as a director of Acutus Medical, Inc. (Nasdaq: AFIB), an arrhythmia management company. Mr. Sheridan holds a BS in Chemistry from the University of West Florida and an MBA from Boston University.

Rebecca Robertson
Ms. Robertson has served on our board of directors since January 2019. Ms. Robertson is a founder and Managing Director at Versant Ventures where she has specialized in investing in the areas of medical devices and diagnostics since 1999. In addition, through Longridge Business Advisors, she has provided business advisory services and board services since April 2017. Prior to Versant, she served as Senior Vice President at Chiron Diagnostics, a division of Chiron Corporation, where she had responsibility for the critical care business unit in addition to leading the division’s business development efforts. Prior to joining Chiron, Ms. Robertson was a co-founder and Vice President at Egis, a consumer products company, and held senior management positions in operations and finance at Lifescan, a Johnson & Johnson Company. Ms. Robertson served as a general partner at Institutional Venture Partners (IVP), where she was an investor in the life sciences group, from July 1997 to October 1999. Ms. Robertson was also previously an entrepreneur in residence for IVP in the life sciences group. Ms. Robertson holds a BS in Chemical Engineering from Cornell University.

Douglas Roeder
Mr. Roeder has served on our board of directors since May 2009. Mr. Roeder joined Delphi Ventures as an Associate in 1998, and has been a Partner since 2000, where he has focused on medical devices, diagnostics and biotechnology. Prior to joining Delphi Ventures, Mr. Roeder was an Associate with Alex Brown’s Healthcare Investment Banking Group in San Francisco, where he focused on the medical device, life sciences and healthcare services industries. Mr. Roeder serves as a director of Senseonics Holdings, Inc. (NYSE-MKT: SENS), a continuous glucose monitoring company, and several privately held companies. He previously served as a director of Trivascular Technologies, Inc., a medical device company, which was acquired by Endologix, Inc. (Nasdaq: ELGX) in February 2016. He also previously worked with Putnam Associates, a strategy consulting firm focused on the pharmaceutical and biotechnology industries. Mr. Roeder holds an AB in Biochemistry from Dartmouth College.

Rajwant “Raj” Sodhi
Mr. Sodhi has served on our board of directors since January 2021. He has more than 25 years of experience in global informatics, software service technology and ecommerce business solutions, across the healthcare, financial, and telecom industries. Mr. Sodhi is currently a consultant and advisor to ResMed. Previously he served as the President of ResMed’s software as a service (SaaS) business from July 2017-August 2021 and President of Healthcare Informatics (HI) leading the development of ResMed’s HI solutions and ResMed itself to its current standing as a global digital health leader, with an expanding portfolio of device- and SaaS-based offerings. He joined ResMed in 2012 through the acquisition of Umbian Inc. of which he was co-founder and President. Before ResMed and Umbian, Mr. Sodhi worked in the financial services industry, designing, developing and managing SaaS solutions. He was Senior Vice President of Business Development and Chief Technology Officer for Skipjack Financial Services from 2005 to 2009, and co-founder and Chief Technology Officer of TransActive Ecommerce Solutions from 2000 to 2005. Mr. Sodhi holds a MBA and a BS in Mathematics and Statistics from Dalhousie University in Halifax, Nova Scotia.

Christopher Twomey
Mr. Twomey has served on our board of directors since July 2013. Mr. Twomey has served as a director and chair of the audit committee of Bionano Genomics (Nasdaq: BNGO), a life sciences genome analysis instrumentation company since July 2018. From March 1990 until his retirement in 2007, Mr. Twomey held various positions with Biosite, most recently serving as Senior Vice President, Finance and Chief Financial Officer. From 1981 to 1990, Mr. Twomey worked for Ernst & Young LLP, where he served as an Audit Manager. Mr. Twomey also served as a director and chair of the audit committee of Senomyx, Inc., a flavor technology company, from March 2006 until its sale to Firmenich SA in November 2018. He also served as a director and chair of the audit committee of Cadence Pharmaceuticals, Inc., from July 2006 until it was acquired by Mallinckrodt plc in March 2014. Mr. Twomey holds a BA in Business Economics from the University of California, Santa Barbara.

 
 

 
 

Executive Team

John Sheridan
President and Chief Executive Officer

Mr. Sheridan has served on our board of directors since June 2019 and as our President and Chief Executive Officer since March 2019. Prior to that, Mr. Sheridan served as our Executive Vice President and Chief Operating Officer since April 2013. Prior to joining us, 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, 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, now operating as BioTelemetry, Inc. (Nasdaq: BEAT). From March 1998 to May 2002, he served as Vice President of Operations at Digirad Corporation, a medical imaging company. Mr. Sheridan serves as a director of Acutus Medical, Inc. (Nasdaq: AFIB), an arrhythmia management company. Mr. Sheridan holds a BS in Chemistry from the University of West Florida and an MBA from Boston University.

David Berger
Executive Vice President, Chief Business Operations and Compliance Officer & Secretary

David Berger has served as our Executive Vice President, Chief Business Operations and Compliance Officer & Secretary since November 2020 and is responsible for the Company’s legal, quality, regulatory, clinical and customer technical support functions. He previously served as Executive Vice President, Chief Legal and Compliance Officer since April 2019, and as General Counsel, having overseen the legal department since August 2013. From January 2008 until August 2013, Mr. Berger was employed at Senomyx, Inc., a taste science company, where he most recently served as Senior Vice President and General Counsel. He also served as Corporate Secretary of Senomyx from January 2008 until May 2014. From April 2003 until October 2007, Mr. Berger was responsible for all commercial aspects of legal affairs at Biosite Incorporated, or Biosite, a provider of medical diagnostic products, most recently serving as Vice President, Legal Affairs. Previously, Mr. Berger was an attorney at Cooley Godward LLP and Amylin Pharmaceuticals, Inc. Mr. Berger holds a B.A. in Economics from the University of California, Berkeley and a J.D. from Stanford Law School.

Jeff Brown
Vice President, Program Management

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.

Michael Fechko
Vice President, Manufacturing Operations

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.

Tom Fox
Senior Vice President, Human Resources and Organizational Development

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 BS in Business Administration from California State University, Fresno and a MS in Labor Relations and Human Resources Management from Michigan State University.

Elizabeth Gasser
Executive Vice President and Chief Strategy Officer

Elizabeth Gasser has served as our Executive Vice President, Strategy and Corporate Development since January 2020. Prior to joining our Company, Ms. Gasser served from June 2017 as an independent adviser providing strategic and corporate development solutions to boards and executive teams. From January 2016 to June 2017 she was Vice President of Corporate Strategy at QUALCOMM Technologies, Inc. (QTI), a subsidiary of QUALCOMM Incorporated (Nasdaq: QCOM), a global leader in the development and commercialization of technologies and products used in mobile devices and other wireless products. Prior to that, from November 2012 to January 2016 she was Vice President of Strategic Development at QTI, after serving in other strategic related roles of increasing responsibility beginning in 2006. Ms. Gasser holds a BA and an MA in Economics from the University of Cambridge.

Stephanie Habif
Vice President, Behavioral Sciences

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 BA in English Literature and Psychology from Washington University in St. Louis, a MS in Counseling Psychology from Springfield College as well as a EdD in Health and Behavior Studies from Columbia University.

Brian Hansen
Executive Vice President and Chief Commercial Officer

Brian Hansen has served as our Executive Vice President and Chief Commercial Officer since February 2016. Prior to joining our Company, Mr. Hansen served from September 2014 as Chief Commercial Officer of Adaptive Biotechnologies Corp. From May 2013 to September 2014, Mr. Hansen served as Head of Commercial, Sales and Marketing, of Genoptix, a Novartis Company. From December 2005 to February 2013, he served in various roles of increasing responsibility at Gen-Probe, Inc., a medical diagnostics company, most recently serving as Senior Vice President, Global Sales and Services from January 2012 to February 2013. Mr. Hansen received a BS in Business Administration from the University of Missouri-Columbia, and an MBA. from the School of Business at San Diego State University.

Manuel Jaime
Senior Vice President, Technology and Digital Health

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.

Josh Juster
Vice President, Sugarmate

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 BS and a ME in Computer Science from the Massachusetts Institute of Technology.

Julia Kensick
Vice President, Quality

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 BS in Mechanical Engineering from San Diego State University. 

Motty Klots
Vice President, International Markets

Motty Klots joined us as Vice President, International Markets in September 2021. Prior to joining Tandem, he was the Chief Commercial Officer at Cardiologs, a digital health startup commercializing an artificial intelligence SaaS solution for cardiology diagnostics, where he developed a global go-to-market strategy, built a commercial function, and set up US operations. Previously, Mr. Klots led EMEA Marketing at Stryker Neurovascular during a sustained period of rapid growth. Mr. Klots started his medtech career at Medtronic, where he spent over a decade in a variety of business development, marketing, sales, and commercial leadership roles across the US, Europe, and Emerging Markets, notably leading one of the fastest growing global regions for Medtronic Diabetes. Mr. Klots holds a BA in Computer Science from the University of California, Berkeley and an MBA in Entrepreneurial Management and Finance from The Wharton School at the University of Pennsylvania.

Arun Kumar
Vice President, Supply Chain

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 MS in Mechanical Engineering from Old Dominion University.

Jim Leal
Senior Vice President, Operations
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 PhD in Materials Science and Engineering.

Jean Lin
Vice President, Finance
Jean Lin joined us as Vice President, Finance in September 2021. Prior to joining Tandem, she had various positions at Nuvasive, a medical device company focused on developing minimally disruptive surgical products and procedurally integrated solutions for the spine, where she worked in different functions such as Global Operations, R&D, Product Marketing, Global Commercial and Pricing & Contracts. Ms. Lin brings more than 16 years of experience in finance in the medical technology industry. Ms. Lin holds a BS in Industrial Management and Engineering from I-Shu University, an MBA in Finance from the University of Dallas and a MS in Accounting from the University of Texas at Dallas.

Michael Michaud
Vice President, Research and Development

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 BS in Mechanical Engineering from the University of Michigan.

Susan Morrison
Executive Vice President and Chief Administrative Officer

Susan Morrison has served as our Chief Administrative Officer since September 2013 and as an Executive Vice President since December 2017, and is responsible for the Company’s investor relations, corporate communications, project management, human resources and facilities functions. From April 2013 until September 2013, she served as our Vice President, Human Resources, Corporate and Investor Relations. 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 BA in Public Relations from Western Michigan University.

Rizwan Pervez
Senior Vice President, Quality and Regulatory

Rizwan Pervez joined us as Senior Vice President, Quality and Regulatory in September 2021. Prior to joining Tandem, he was the Global Head of Quality and Regulatory Compliance for Medtronic, where he had executive responsibility for establishing worldwide strategy and direction. Mr. Pervez brings more than 20 years of leadership experience in Quality, Regulatory and Compliance spanning the diagnostics, POC, IVD’s, SAMD, ventilation, ultrasound, surgical and interventional markets and has held senior leadership roles in global organizations including Abbott Labs., Philips Healthcare, AmerisourceBergen, and GE Healthcare. Mr. Pervez holds a BS in Computer Science from Northern Illinois University and an MBA from Lake Forest Graduate School of Management.

Jordan Pinsker, MD
Vice President and Medical Director

Dr. Jordan Pinsker joined us as Vice President and Medical Director in April 2021. He is a leading pediatric endocrinologist and prominent thought leader in artificial pancreas research. Dr. Pinsker joined Tandem from Sansum Diabetes Research Institute in Santa Barbara, California, where he served as the Director of Artificial Pancreas Technology since 2018. In his role at Sansum, he was a lead investigator in numerous clinical trials on automated insulin delivery systems, including Basal-IQ® and Control-IQ™ technology. Prior to this, he was Chief of Pediatric Endocrinology at Tripler Army Medical Center in Hawaii. Dr. Pinsker served as a physician in the United States Army in both Active Duty and in the California Army National Guard for more than 20 years. He completed a combined seven-year BS/MD program with Union College and Albany Medical College in New York. Dr. Pinsker is board certified in Clinical Informatics, Pediatric Endocrinology and General Pediatrics.

Peter Rossiter
Vice President, Information Technology

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 BE in Chemical Engineering from the University of Sydney in Sydney, Australia.

Christina Sun
Vice President, Corporate Controller

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 MS in Accountancy from San Diego State University.

Ross Sylvia
Vice President, Marketing

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 BS in Marketing and Computer Information Systems from Bryant University.

Leigh Vosseller
Executive Vice President, Chief Financial Officer and Treasurer

Leigh Vosseller has served as our Executive Vice President, Chief Financial Officer and Treasurer since June 2018, and served as Senior Vice President, Chief Financial Officer and Treasurer from January 2018 to May 2018. Ms. Vosseller is our principal financial and accounting officer. She joined us as Vice President of Finance in 2013 and was promoted to Senior Vice President of Finance in August 2017. Prior to that time, she served as Vice President and Chief Financial Officer at Genoptix, beginning in 2011, after initially joining Genoptix in 2008. Prior to that she held a senior finance position at Biosite 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 BS in Accounting from Missouri State University.