We're purpose-driven individuals, determined to push the boundaries of timing innovation and inspire the future of electronics. Meet the people at SiTime who do this every single day.

Sassan Tabatabaei

Vice President, Circuit Design Engineering

Sassan’s hands-on technical leadership and vision provides inspiration to the circuit design team responsible for developing and delivering audacious products. Sassan has led the team in extremely challenging and aggressive projects resulting in breakthrough designs for five new timing platforms. Since joining SiTime in 2008, his guidance in engineering, chip architecture, and design implementation has contributed to SiTime garnering multiple industry-firsts, prestigious awards, and design-wins at leading enterprise customers.

Prior to SiTime, Sassan held CTO and director positions at Guide Technology, Virage Logic, and Vector12, an embedded timing analysis company that he co-founded. His technical expertise spans timing, applications, testing, analysis, and design. He holds over 25 U.S. patents in these areas. Sassan received his B.Sc. from Isfahan University of Technology, his M.Sc. from University of Calgary, and his Ph.D. from the University of British Columbia—all degrees in Electrical and Computer Engineering.

Narayanan (Nara) Bharath

Executive Vice President, Systems

Nara leads the customer engineering and systems team that synthesizes SiTime technologies into solutions that solve the most challenging customer problems. His holistic systems solution approach fosters successful collaboration—across the company and with customers—and accelerates innovation that is focused on the business and technical needs of customers.

Previously, Nara served as senior vice president of customer engineering and cloud services at Quantenna Communications where he was responsible for several functional domains. Prior to Quantenna, he served as vice president of customer engineering at SiTime and at Ikanos Communications Inc. Earlier in his career, Nara held engineering management positions at Copper Mountain Networks Inc., Information Technology Institute in Singapore, and at C-DOT in India. Nara received his BSc degree in Electronics and Telecommunications from the University of Madras, India.

Lionel Bonnot

Executive Vice President, Worldwide Sales and Business Development

Lionel Bonnot has served as our Executive Vice President of Business Development since February 2018. Prior to joining SiTime, Mr. Bonnot was at Quantenna Communications (Nasdaq: QTNA), a wireless communication solution company that designs and develops radio frequency and digital Wi-Fi chips, from December 2007 to December 2017. During his 10-year tenure at Quantenna, Mr. Bonnot served as vice president of worldwide sales, senior vice president of business development, and most recently as senior vice president of marketing and business development. Mr. Bonnot also held various positions at Ikanos Communications, Inc., a semiconductor and software development company, from December 2001 to December 2007, including vice president of Europe, vice president of sales for North America and EMEA, and senior director of worldwide sales. Mr. Bonnot holds a M.S. in Computer Science from Ecole Nationale Supérieure d’Informatique in Paris, France.

Samsheer Ahmad

Corporate Controller and Vice President, Finance

Samsheer is an avid believer in technology, analytics, and understanding the drivers of business. He joined the company in 2015 during a time of rapid growth and has used his experience in leading ERP implementations to set up the processes, enterprise systems, and infrastructure at SiTime to scale the company. Samsheer has built a team of finance experts at SiTime to oversee the company’s fast revenue growth and successfully manage the budget to plan and profitability.

Samsheer has more than 15 years of operational and technical accounting experience at global technology companies with significant operating scale and complexity. Previous to SiTime, he held senior positions at Maxim Integrated Products, SiRF Technology, TiVo, and Guavus. Samsheer is a Certified Public Accountant and holds a bachelor’s degree in Accounting and Information Systems from the University of the South Pacific. 

Bruce Potvin

Vice President, Global Sales

Bruce has a proven track record for growing global sales across a wide range of businesses. Since joining SiTime in 2015, Bruce has expanded the company’s customer base fivefold and grown the company’s channel program to more than 80 partners. He has a passion for ensuring a smooth customer experience. Bruce has leveraged SiTime’s unique programmable product features and added global programming partners to cut lead-times in half. He is known for increasing revenue, by combining his experience in sales, marketing, strategic alliances, and business development with his systems knowledge.

Prior to joining SiTime, Bruce served in leadership roles at NXP Semiconductor in the logic business and North America sales organization, and managed supplier relationships for Wyle Electronics. Bruce started his career in sales and technical business development after earning his Bachelor’s degree in Electrical Engineering from Northeastern University. 

Divyesh Shah

Executive Vice President, Operations

Divyesh joined SiTime in 2019 to enable the operations infrastructure to scale to the fast growth of the company, and to lead the teams responsible for procurement, supply chain planning, product and test engineering, packaging, quality, facilities, and IT. He brings to SiTime over 35 years’ experience in the semiconductor industry, spanning both engineering and operations, and the ability to manage large revenue through an outsourced supply chain.

Previous to SiTime, Divyesh ran the IC operations at Broadcom (Avago, LSI Logic) and more recently at Integrated Device Technology (IDT). Earlier in his career, Divyesh held positions at National Semiconductor and at a MEMS startup. Divyesh has served on the board of industry and community organizations including the Global Semiconductor Alliance. He holds a dual Master's degree in Chemical Engineering and Industrial Engineering from the University of Michigan, Ann Arbor and a BS degree in Chemical Engineering from the University of Wisconsin, Madison.