Executive management

Vlad Shmunis, Chief Executive Officer, Founder, and Chairman of the Board


Vlad Shmunis founded RingCentral with the idea of using the power of cloud technologies to reimagine business communications. The company vision is to deliver customer-first solutions that meet the needs of the rapidly changing business environment. RingCentral enables the modern workforce to communicate, collaborate, and connect from anywhere, on any device using any form of communication. The focus is to deliver flexible and cost-effective solutions that disrupt the business of legacy on-premises phone systems, while providing other important communications capabilities. With the delivery of RingCentral’s mobility-centric cloud communications solutions, RingCentral unifies voice, video, team messaging and collaboration, conferencing, online meetings, and integrated contact center. Today, RingCentral is the #1 cloud communications provider, used by more than 350,000 businesses worldwide.

RingCentral is recognized as the largest and fastest-growing global pure-cloud communications solutions provider. RingCentral is the top-ranked company in the 2019 IHS Markit North American UCaaS Leadership Scorecard for three years in a row, and recently ranked the highest for growth and innovation in Frost & Sullivan's 2019 UCaaS Radar Report. In addition, RingCentral has been named a leader in the Gartner Magic Quadrant Unified Communications as a Service Worldwide 2015, 2016, 2017, 2018, and 2019 and UCaaS Company of the Year by Frost & Sullivan in 2017.

Under Shmunis, RingCentral has evolved from a startup company, funded in 2006 with a $12 million series A round led by Sequoia and Khosla Ventures, to a publicly traded NYSE listed company with a market cap of more than $10 billion.

Shmunis is an over 30-year veteran of the software industry. Prior to launching RingCentral, he served as the founder and CEO of Ring Zero Systems, where he pioneered desktop software for business communications software. Ring Zero shipped more than 25 million copies of its software to PC manufacturers, leading to its acquisition by Motorola.

Shmunis holds a bachelor's and master's degree in computer science from San Francisco State University and is a named inventor on a variety of US patents. In 2014, he was named Ernst & Young Entrepreneur of the Year™, Northern California Region.

Anand Eswaran, President and Chief Operating Officer


As RingCentral’s President and Chief Operating Officer, Anand Eswaran leads Product, Engineering, Sales, Marketing, Services, Customer Care, Operations, IT, and Human Resources.

Prior to joining RingCentral, Eswaran was most recently responsible for Microsoft’s Enterprise Commercial and Public Sector business globally. Prior to that, he led Microsoft Services, Industry & Digital, Customer Care, and Customer Success; a global team of 24,000 professionals.

Prior to joining Microsoft, Eswaran was the Executive Vice President of the $5.4B Global Services business at SAP, leading 17,000 business process and technology professionals to accelerate customer and partner value creation through SAP’s enterprise applications. Eswaran’s other leadership roles include Vice President of Global Software Services at HP, Vice President of Global Professional Services at Vignette (now OpenText), and Senior Manager at Braun Consulting (now Fair Isaac).

Eswaran is a founding member of the Technology Services Industry Association (TSIA) and served on the executive advisory board for 12 years. He holds a master’s degree in computer science and engineering from University of Missouri-Columbia and a bachelor’s degree in computer engineering from University of Mumbai, India.

Mitesh Dhruv, Chief Financial Officer


Mitesh Dhruv, Chief Financial Officer of RingCentral, is closely involved in driving business strategy, corporate finance, partnerships, and growth opportunities. He joined RingCentral in 2012 and is responsible for RingCentral’s global finance functions, including financial planning, controllership, tax, treasury, and investor relations.

Dhruv began his career at PricewaterhouseCoopers and has more than 15 years of experience in accounting and finance.

Before joining RingCentral, he worked at Bank of America Merrill Lynch as an equity analyst, covering software and cloud companies, and worked on several multi-billion-dollar IPOs.

Dhruv is a chartered Accountant as well as a CFA charterholder, and has an undergraduate degree in accounting from the University of Mumbai, India.

John Marlow, Chief Administrative Officer, General Counsel, and Senior Vice President of Corporate Development


John Marlow serves as Chief Administrative Officer, General Counsel, and Senior Vice President of Corporate Development at RingCentral, where he oversees business and legal affairs, people operations, and facilities. His legal responsibilities include SEC and NYSE compliance; strategic agreements with carriers, including AT&T, TELUS, and BT; intellectual property; regulatory compliance; litigation; and privacy and security matters. His people operations and facilities responsibilities include managing RingCentral talent acquisition, talent management, total rewards (compensation and benefits), HRIS, and facilities teams globally. His corporate development responsibilities include M&A and strategic partnership transactions, and he also previously helped lead RingCentral’s EMEA operations.

Before joining RingCentral, Marlow founded and managed his own law firm and, prior to that, was a partner at Reed Smith, LLP, a Law360 Global 20 firm with more than 1,700 attorneys worldwide.

Marlow received his law degree from Boalt Hall School of Law at the University of California, Berkeley, and earned his bachelor’s degree, summa cum laude, from Colgate University.

Carson Hostetter, Chief Revenue Officer


As RingCentral’s Chief Revenue Officer, Carson Hostetter leads global sales including all direct, channel, and strategic partners. Prior to being promoted to this role, Carson held the title of Senior Vice President of Worldwide Field Sales where he built a world-class enterprise business. In this position, he led RingCentral’s worldwide field teams including field sales for the enterprise and commercial segments, solutions engineering, contact center sales, and video collaboration sales.

Prior to joining RingCentral in 2016, Carson worked at Avaya for seven years, holding several VP-level sales positions with revenue responsibilities up to $1B annually. He moved to Avaya after 10 years at Nortel Networks.

As an industry veteran, Carson has seen it all in the unified communications and contact center space and is passionate about using that knowledge to help customers transition to the cloud.

Carson holds a bachelor's degree in material science and engineering from North Carolina State University. He resides in Atlanta, GA, home of the world’s busiest airports, which he often uses to visit customers, partners, and team members around the world.

Carson has been happily married for over 10 years to Julie and has two daughters. He holds a third-degree black belt and sensei title in Shuri Ryu karate and enjoys teaching his little girls martial arts.

Jaya Kumar, Chief Marketing Officer


As RingCentral’s Chief Marketing Officer (CMO), Jaya Kumar is responsible for all cross-functional marketing activities including Corporate Communications, Digital, Field, and Solutions Marketing, Strategic Events, and Business Development.

Kumar brings more than 25 years of experience with multiple Fortune 100 companies including PepsiCo, Kraft Foods/Mondelez where he held both president and CMO positions. In addition, Jaya has worked in multiple markets of the world including Asia, Middle East, Canada, and USA. Most recently he was Global CMO at Capital Group, one of the world’s largest fund manager with over $2.2 trillion in assets under management for individuals and institutional investors.

Prior to working at Capital Group, Kumar was president and chief innovation officer at UST Global, where he helped to transform the organization into a modern, well integrated digital business.

Kumar also served as the president of South East Asia, and senior vice president of Strategy for Mondelez International. He was responsible for the business in 12 countries including Hong Kong, Indonesia, Philippines, Singapore, Taiwan, Thailand, Vietnam.

During his time at PepsiCo he held a variety of leadership positions including president for the Global Nutrition Group where he was tasked to grow a nutritionally-advantaged Health and Wellness portfolio and president of Quaker Foods North America. As the CMO, Kumar managed all aspects of brand management of a snack portfolio that included multiple billion-dollar franchises such as Lays, Doritos, Cheetos, Tostitos, and Fritos.

Kumar holds a Master’s in Business Administration from The Indian Institute of Management, Ahmedabad (IIMA).

Vlad Vendrow, Co-Founder and Chief Technology Officer


Vlad Vendrow is the key architect of the RingCentral cloud phone solution. He is responsible for enabling RingCentral’s core product innovation and category leadership while ensuring global scalability and availability. He is passionate about empowering people to connect and communicate with unparalleled freedom and ease from their device of choice.

Prior to RingCentral, Vendrow served as the Director of Engineering at Ring Zero Systems and Motorola.

His accomplishments include leading the development of the Ring Zero phone and fax communications software that shipped more than 25 million copies worldwide.

Vendrow has been granted more than 40 patents in the areas of unified communications, fixed-mobile convergence, and cloud services. He holds a master’s degree in computer science and applied mathematics from Saint Petersburg Electrotechnical University in Russia.

Nat Natarajan, Executive Vice President of Products and Engineering


As RingCentral’s Executive Vice President of Products and Engineering, Nat Natarajan leads product, engineering, cloud operations, IT, and security teams for the company.

Natarajan brings more than 20 years of experience as a global operations, product, technology, and organizational leader. He has a reputation for developing highly innovative products, building successful and high-performing teams, and spearheading results-driven transformational change.

Prior to joining RingCentral, Natarajan was most recently Executive Vice President and Chief Product and Technology Officer at Ancestry, where he led product development, engineering, data science, and technology strategy and implementation. He also led the company’s digital transformation, increasing the pace of innovation and moving Ancestry’s 23+ petabytes of data to the cloud, unlocking Artificial Intelligence (AI) and Machine Learning (ML) capabilities to deliver smart, personalized experiences to millions of customers globally.

Prior to Ancestry, Natarajan was Senior Vice President, Chief Product and Technology Officer for Intuit’s TurboTax, where he was responsible for product innovation that included driving broad customer adoption of their mobile apps. He was also the company’s Chief Information Security and Fraud Officer, where he led the development of the companywide vision and strategy for information security. Before Intuit, Natarajan held multiple senior roles at PayPal, including Vice President of Global Product Development and Vice President of Platform Engineering and Operations.

Natrajan is a board member at Alliance Data Systems and a Trustee at Harvey Mudd College, California.

He holds an MS in Industrial Engineering from Clemson University and a BS in Mechanical Engineering from Jawaharlal Nehru Technological University in Hyderabad, India.

Matthew Bishop, Chief Digital Officer


As RingCentral’s Chief Digital Officer, Matthew Bishop is responsible for creating and implementing RingCentral’s overall digital strategy, with a focus on using data and insights to enrich and enhance customer and partner engagements and support RingCentral’s growing operational needs.

Prior to joining RingCentral, Bishop spent over 18 years at Microsoft, most recently as Corporate Vice President of Commercial Strategy and Operations of Microsoft’s Worldwide Commercial Business, where he was responsible for rapidly identifying opportunities to grow new business and increase usage and adoption around the world. He has led sales teams across Europe, the Middle East and Africa and received the Microsoft Chairman’s Award from Bill Gates for his sales leadership. He joined RingCentral from Core Scientific, where he served as Chief Administrative Officer after leaving Microsoft.

In 2012, Bishop was made an Officer of the Order of the British Empire (OBE) by the Queen of England in her birthday Honours List for his voluntary work in protecting children online.

Kira Makagon, Chief Innovation Officer and Executive Vice President


Kira Makagon leads global product, user experience, engineering, and operations. She is a critical driver in defining RingCentral’s product strategy and in bringing to market RingCentral’s robust communications and collaboration solutions. Makagon is also passionate about superior user experiences. Throughout her career, she has pioneered multiple breakthrough industry solutions and companies, garnering a reputation as a visionary product and business leader.

Before joining RingCentral, Makagon founded and served as CEO and president of Red Aril, a real-time audience and media optimization platform acquired by Hearst Corporation. Prior to that, she co-founded and held executive and board positions at flagship online marketing and CRM companies, including Octane Software, acquired by E.piphany, and Scopus Technology, acquired by Seibel.

Makagon holds a bachelor's degree in computer science from the University of California, Berkeley, and an MBA from the Haas School of Business at UC Berkeley. She serves as an advisor to entrepreneurs and early-stage companies, including Illuminate Ventures, and is a member of the Board of Directors at Calix.

As well as being a prominent and frequent speaker at many industry events, Makagon has received numerous awards, including a 2018 San Francisco Business Times Forever Influential Honor Roll award, a 2016 Silver Stevie for Female Executive of the Year, a 2016 Most Influential Women in Business from the San Francisco Business Times, a 2015 Women of Influence from the Silicon Valley Business Journal, and a 2015 Golden Bridge Business and Innovation award.

Gunjan Aggarwal, Chief People Officer


As RingCentral’s Chief People Officer, Gunjan Aggarwal leads global Human Resources for the company including talent acquisition and development, organization effectiveness, rewards and recognition, and global inclusion and diversity. 

Aggarwal is a 20-year industry veteran who joins RingCentral from RELX Group, a world-leading provider of information solutions based on big data analytics for professional and business customers with revenues of $10 billion. At RELX, she was responsible for all aspects of the people function across the 30,000 employee population. She also led executive and board engagements in planning, culture, inclusion, and risk mitigation in the people domain and oversaw a team of over 400 HR professionals. 

Prior to joining RELX, Aggarwal held a variety of leadership positions at Ericsson, where she spent five years, including vice president of people and culture. In her role, she supported the Media business growth via mergers and acquisitions, attracting software and cloud media talent to build Ericson’s TV-as-a-service (TVaaS) offerings in a dynamic industry domain. Aggarwal also served as global head of talent acquisition for Diversity & Inclusion (D&I) and Mergers & Acquisition (M&A) where she worked closely with executive staff and the talent board to recruit top executive talent.

Aggarwal also served as vice president and head of HR for North America at Ericsson, leading HR strategy for 20,000 employees with a team of 250 HR associates. Before joining Ericsson, Aggarwal held various positions at leading companies including Novartis and Unilever. 

Aggarwal holds a Bachelor of Science degree in Electronics and Communication and a Masters in Business Administration from XLRI in Jamshedpur, India.

Vaibhav Agarwal, Chief Accounting Officer


Vaibhav Agarwal, Chief Accounting Officer, serves as the company’s principal accounting officer and joined the company as Vice President, Corporate Controller in July 2016.

Prior to joining RingCentral, Vaibhav served as Assistant Corporate Controller of the Programmable Solutions Division of Intel Corporation (formerly Altera Corporation). He joined Intel through it’s acquisition of Altera Corporation, where he was the Assistant Corporate Controller. Prior to Altera, he was Director, Corporate Accounting at Intuitive Surgical Inc. and before that worked at PricewaterhouseCoopers.

Mr. Agarwal earned his Bachelors of Commerce from Delhi University and is a Chartered Accountant from India and a Certified Public Accountant in California.

Heather Hinton, Chief Information Security Officer


As Chief Information Security Officer (CISO), Heather is responsible for RingCentral’s security posture and innovation across RingCentral including RingCentral’s UCaaS and CCaaS portfolio.

Dr. Hinton brings more than 30 years of experience in Information Technology (IT) and cyber security expertise to RingCentral. Over the years, she has led product design and architecture, development, and sales and support for several organizations and was instrumental in bringing Privacy by Design thinking into IBM’s Security and Privacy by Design discipline in response to emerging privacy requirements. She has also overseen security operations and data center security, risk management, and incident response activities for large Fortune 500 customers.

Prior to RingCentral, Heather held various leadership positions at IBM, most recently as vice president and IBM distinguished engineer, and CISO for the company’s Cloud and Cognitive Software business unit. As an IBM Distinguished Engineer and chief technology officer (CTO) for the company’s Security and Compliance Specialty Service Area (SSA), where she led the adoption of security standards for internal applications and external clients.

Prior to joining IBM, Heather was an Assistant Professor of Electrical and Computer Engineering at Ryerson Polytechnic University in Toronto, and an Adjunct Assistant Professor at the University of Toronto. She has a PhD in Computer Security from the University of Toronto.

As an IBM Master Inventor, Hinton holds over 100 patents covering federated identity management, cloud security, and policy management. She was inducted into the Women in Technology Hall of Fame in 2019.

Faiza Hughell, Chief Customer Officer and Executive Vice President


As RingCentral’s Chief Customer Officer, Faiza Hughell focuses on the success of RingCentral’s customers across all markets and geographies including Customer Support, Customer Success, and Professional Services and Implementation. Previously, Faiza held the title of Senior Vice President of Small Business where she was responsible for the growth of RingCentral’s small business customer base worldwide. Faiza joined RingCentral in 2010 with a charter to scale inside sales, helping drive growth through the company’s IPO in 2013. During her nine years at RingCentral, she has built and scaled multiple teams across the sales organization, including Sales Development, BDR, Solutions Engineering & Small Business. Her passion is centered around empowering her customers and teams.

Prior to joining RingCentral, Faiza built and led Small Business and Sales Development teams at Cisco WebEx. As a segment leader, Faiza was focused on Small Business Growth as well as eCommerce.

Faiza works with various charities that provide battered women with job training and interview skills training, using her business prowess to help others find a journey to success. Faiza has received numerous awards, including a 2007 Gold Stevie Award for Sales Team of the Year, 2016 Bronze Stevie Award for Female Executive of the Year, Tribute to Women of Silicon Valley Award for Female Empowerment in 2018, and The Modern Sale and Collective[i] Top 100 Global Sales Leaders of 2021.

Homayoun Razavi, Executive Vice President, Global Service Providers


Homayoun Razavi is the EVP of RingCentral's Global Service Provider business unit, aimed at working in partnership with global service providers and maximizing customer value with joint cloud communications, network, and mobility solutions that can be delivered globally at scale.

Homayoun has 32 years of experience working with global service providers. He joined BroadSoft pre-IPO and built a strong team for over seven years serving as Managing Director of America, which delivered 70% of annual revenue. Homayoun remained at BroadSoft until 2017 before it was sold to Cisco and moved to Coriant as EVP, Chief Customer Officer, where he was in charge of global sales and marketing as he managed a global team of 1,000 people and delivered one billion dollars in revenue, as well as, success in companies such as Lucent, Ascend, Cascade, and MCI (Verizon).

He brings a wealth of experience in operations, product marketing, engineering, go-to-market strategies, business development, and sales for a wide range of technology-driven software, hardware, services, and cloud-based companies. Homayoun is also currently serving on the Advisory Board of 5G startup Movandi, is an Academic Board Member of ISDI Digital University, and has served on many board positions at companies such as ENEA, nuPSYS, Hyperoffice, Ruckus Wireless, etc.

He is known for his high level of professionalism and exemplary positive attitude, being a visionary and entrepreneur, his loyalty and leadership, being highly ethical and sincere with his intentions, and bringing out the best in people.

Zane Long, Senior Vice President of Global Channel


Zane Long is the Senior Vice President of Global Channel at RingCentral where he is responsible for the global growth of RingCentral’s channel partner program working with key global partners, such as CDW, Intelisys/Scansource, SHI and PCM.

During his three years at RingCentral, Long has led the team in successfully growing the channel program to what is now an over $200M business for RingCentral. His passionate enthusiasm and collaborative approach have been an essential to the team’s overall success. His passionate enthusiasm and collaborative approach have been an essential to the team’s overall success.

Long has created and led leading global partner programs for almost 20 years. Prior to joining RingCentral, he held senior roles at Genband (Ribbon), Cbeyond and Level 3.

Zane has been recognized by his peers and the partner community for industry awards such as; CRN Top Ten Channel Executive of the Year Finalist in 2012/2017, CRN Channel Chief 2013/2016/2017/2018 and Channel Partners Circle of Excellence Award Winner 2013/2017.

Jim Dvorkin, Senior Vice President, Customer Engagement


Jim Dvorkin is Senior Vice President of Customer Engagement at RingCentral. He is responsible for the company’s customer engagement and contact center technologies.

Jim has spent more than 20 years in operational and engineering roles. Prior to joining RingCentral Jim was a COO at Mirantis, a leading provider of open source private cloud management technology. Jim was also CTO at Five9, a market leading cloud-based contact center company where Jim was managing engineering, data center operations, customer support, and implementation.

Prior to that, Jim held several key roles including at Salesforce.com, where Jim started their call center initiative, EchoPass [acquired by Genesys] - a leading provider of hosted call center solutions based on Genesys call center technologies, and HipBone [acquired by Kana] - a hosted web collaboration company, where he led the effort to deliver the solution to Fortune 100 clients.

Before joining HipBone, Jim co-founded one of the first on-demand call center companies – WhitePJ [acquired by Contactual] - where Jim was responsible for building and operating the technology.

Jim holds a masters degree of economics and computer science from State University of Lithuania and fluently speaks Russian, Lithuanian, and English.