Executive management

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

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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.

Dave Sipes, Chief Operating Officer

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As RingCentral’s Chief Operating Officer, David Sipes leads innovation, engineering, global sales, marketing, customer care, international operations, corporate development, and business development.

Sipes has an extensive eight-year history in business management at RingCentral, overseeing a variety of key functions, most recently serving as Chief Revenue Officer and, prior to that, Vice President of Corporate Development.

Before joining RingCentral, Sipes was co-founder and COO of Branders.com, the nation’s largest online B2B seller of promotional items.

Prior to that, Sipes worked in brand management at PepsiCo and was a principal at Booz Allen Hamilton in their marketing intensive group, providing strategic guidance to marketing and media companies such as Heinz Company, Callaway Golf, and Universal Pictures.

Sipes holds a master’s degree in business administration with an emphasis in marketing from Kellogg School of Management at Northwestern University, as well as a bachelor’s degree in business from the University of California, Berkeley.

Mitesh Dhruv, Chief Financial Officer

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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.

Praful Shah, Chief Strategy Officer

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Praful Shah is responsible for defining the company’s business, product, and marketing strategy.

Shah has more than 20 years of experience with major technology companies in the software and cloud industries. Before joining RingCentral, he worked at WebEx from its founding days until its acquisition by Cisco in 2007. At WebEx, Shah held various executive management positions, including Vice President of strategic communications, online products, product marketing, and business development.

Shah previously served as the Senior Director of Marketing for the database and internet products divisions at Oracle.

Shah holds a bachelor’s degree in electronics and communications engineering from the Manipal Institute of Technology in India and a master’s degree in computer science from Pennsylvania State University.

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

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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.

Kira Makagon, Executive Vice President and Chief Innovation Officer

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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.

Vlad Vendrow, Co-Founder and Chief Technology Officer

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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.

William Moxley, Senior Vice President and Chief Product Officer

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William Moxley is RingCentral’s Chief Product Officer and Senior Vice President.

Moxley has over twenty years of experience in the software industry in product leadership roles. Moxley spent over twelve years as a product executive at Salesforce, leading Sales Cloud, PRM and Marketing Cloud products. Most recently Moxley served as an Executive Vice President Product Management, Marketing Cloud at Salesforce and prior to that as Senior Vice President, Product Management of Sales Cloud. Under Moxley’s leadership the Sales Cloud product saw 500% growth in revenue and doubled in market share. Prior to Salesforce, Moxley led product teams at Planitax and Siebel Systems.

Moxley holds a master’s degree in business administration from the Stanford Graduate School of Business, as well as a bachelor’s degree in electrical engineering from Cornell University.

Carson Hostetter, Senior Vice President, Worldwide Field Sales

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Carson leads all of RingCentral’s worldwide field teams including field sales for the enterprise and commercial segments, solutions engineering, contact center sales, and sales operations. Prior to being promoted to this role, Carson held the title of VP, Worldwide Enterprise Sales at RingCentral for 3 years. During this time he grew revenue to $200M annually, all while building out a world class team.

Prior to joining RingCentral in 2016, Carson worked at Avaya for 7 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 communication 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 the Atlanta, GA, home of the world’s busiest airports, which he often uses to visit customers and team members around the world.

Carson has been happily married for over 10 years to Julie and has 2 daughters. He holds a second-degree black belt in Shuri Ryu karate and enjoys teaching his little girls the martial arts.

Zane Long, Senior Vice President of Global Channel

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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.

Faiza Hughell, Senior Vice President, Small Business

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Faiza Hughell is the Senior Vice President of Small Business at RingCentral where she is 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 our 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 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.

Trevor Schulze, Senior Vice President and Chief Information Officer

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As RingCentral's Chief Information Officer, Trevor Schulze provides strategic leadership to the company's global IT team in delivering a comprehensive portfolio of cloud-first, leading-edge technology services and solutions.

Prior to joining RingCentral in 2018, Schulze served as Global CIO of Micron Technology, where he oversaw an international team charged with delivering business capabilities that sped product time-to-market, improved customer engagement, optimized supply chain operations, and maximized manufacturing capital utilization in 18 countries worldwide.

Previously, Schulze was Corporate Vice President IT, Enterprise Applications at Broadcom Corporation, where he was responsible for the strategic direction and management of all enterprise-wide IT systems supporting core business processes; and before that, he was Corporate Vice President IT at Advanced Micro Devices, where he oversaw the deployment of enterprise technology solutions that improved global operations and product development.

Earlier in his professional career, Schulze spent nearly two decades at Cisco Systems, where he held a number of strategic roles driving global development and operational innovations that optimized the way the company designed, collaborated, and produced products. In addition, he managed the engineering efforts of six platforms across multiple business units, ultimately generating billions of dollars in revenue.

Schulze holds a number of patents in the area of core networking, and the products he helped design have won more than 15 “best product” awards from leading industry organizations and publications. In 2017, he received a Forbes CIO Innovation award and a CIO Magazine CIO100 award.

Amritesh Chaudhuri, Senior Vice President, Product and Solutions Marketing

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Amritesh Chaudhuri brings nearly twenty years of enterprise and consumer technology experience to his role as Senior Vice President of Product and Solutions Marketing for RingCentral. His primary focus today is to drive disruption in the communications space with SaaS, cloud, and mobility services.

Throughout his career, Amritesh has led go-to-market functions for applications and platform services that span mature enterprise technology and data management, as well as emerging tech, like blockchain, mobile, chatbots, and IoT.

Before joining RingCentral, he held senior roles with large enterprise software companies like Oracle & CA as well as emerging startups like Snowflake Computing, innoPath Software, and Cloud Cruiser, Inc. Previously, he founded a consulting practice providing product management expertise.

He holds a bachelor's degree in engineering from Loughborough University in the UK.

Jim Dvorkin, Senior Vice President, Customer Engagement

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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.

José Pastor, Senior Vice President, Product Management

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José is the Senior Vice President of Product Management at RingCentral, where he drives the company’s product strategy, definition, and design.

Prior to RingCentral, José worked at Corrigo, a cloud-based facilities maintenance and field service management provider, where he served for eight years as the vice president of product management and marketing.

José started his career as a specialist engineer for Boeing, where he worked on system dynamic analysis, math modeling, and flight testing for new airplane design.

He holds a bachelors and masters in mechanical engineering from the University of Michigan.

Curtis Peterson, Senior Vice President, Operations

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Curtis Peterson has more than 20 years of experience managing information technology and carrier-scale data and packet voice communication networks. At companies ranging in size from startups to Fortune 500 firms, Curtis has managed teams responsible for engineering, project management, operations, data security, network security, data center, carrier operations, and internet backbone design and operation.

Curtis has been a pioneer in VoIP services in the business communications space and has been developing, launching, and operating Class 4 VoIP and customer-facing hosted PBX systems since 2002.

Marty Piombo, Vice President, Strategic Partnerships

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As the RingCentral's Vice President of Strategic Partnerships, Marty Piombo is responsible for global business development efforts spanning telecommunications relationships and key technology partners, such as Google, Box, Okta, Salesforce, and Amazon.

Piombo is a 20-year industry veteran having had global responsibilities in business development and strategic partnerships between Silicon Valley technology providers and international telco, MSO, and Mobile OEMs.

He is responsible for the contract negotiation to the final “operationalization” of RingCentral partnerships, including overlay sales organizations and partner management teams.

Prior to RingCentral, Piombo was at Yahoo as GM Latin America, Mobile Division, and VP of partnerships at Excite@Home. Piombo is a Pepperdine MBA graduate and holds a BA from Swarthmore College.