The world leader in subscriber driven intelligent access, Calix is unrivalled in delivering platform innovations for access networks that enable communications service providers to transform their businesses and be the winning service providers of tomorrow. To foster this vision, Calix has assembled a world-class executive leadership team from a wide variety of successful communications, data networking, and cloud companies.

Carl Russo, President and Chief Executive Officer

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Carl is president and CEO of Calix and a member of the board of directors. Carl has over 30 years of experience in the networking and telecommunications industries. Prior to taking an active role with Calix in December 2002, Carl was a member of the Calix board of directors. Before that, Carl was vice president of optical strategy and group vice president of optical networking for Cisco. Carl joined Cisco in 1999 as a result of the acquisition of Cerent Corporation, where he was president and CEO. Before Cerent, Carl was COO at Xircom (later acquired by Intel), where he was responsible for sales, marketing, development, and manufacturing of all Xircom products. Carl has also held executive management positions at Network Systems Corporation (later acquired by StorageTek) and at AT&T Paradyne. At Network Systems, Carl was the senior vice president and general manager for the Hyperchannel Networking Group, and at AT&T Paradyne he was vice president and general manager of the data networking products division. Carl attended Swarthmore College and served on its board of managers.

Cory J. Sindelar, Chief Financial Officer

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Cory is Chief Financial Officer at Calix, and has an extensive 25-year track record as a senior financial leader working for technology companies. He joined Calix from Violin Memory, where he was Chief Financial Officer. He also previously served as Chief Financial Officer of Ikanos Communications, leading several strategic transactions during his tenure. Cory also held various finance positions at EMC Corporation. Prior, Cory was vice president, corporate controller and principal accounting officer at Legato Systems, Inc., which was acquired by EMC. Cory holds a Bachelor of Science degree in Business Administration with an emphasis in accounting from Georgetown University.

Michael Weening, Executive Vice President, Field Operations

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Michael is the executive vice president of field operations for Calix. As the EVP of field operations, Michael is responsible for all customer-facing teams and functions. Michael has over 20 years of experience leading sales growth, strategy and transformation having held executive positions in North America, Europe and Asia. He joined Calix from Salesforce.com where he was the senior vice president of Global Customer Success, and also held the role of senior vice president, Japan and Asia-Pacific Customer Success, Services and Alliances residing in Tokyo. Previously, Michael held leadership roles at Bell Mobility in Canada, where he was vice president of business sales. Prior, Michael held sales leadership roles at Microsoft, in Canada and London, U.K. Michael holds a Bachelor of Arts in Business Administration, from Brock University.

Diane Prins Sheldahl , Senior Vice President, Talent and Culture

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Diane is senior vice president of talent and culture at Calix, and responsible for all human resources functions as well as promotion of "The Calix Way." Her experience spans a wide variety of companies, from start-ups to the Fortune 10, with focus in technology, aerospace, manufacturing, and healthcare. Prior to joining Calix, Diane held key human resources leadership positions at SpaceX, Hewlett-Packard, Honeywell, Archive.com, Emcore/Ortel, Agere Systems, Abbott Laboratories, and Gateway. She earned her MBA from UC Irvine and holds a BA in Industrial Relations from Syracuse University.

Matt Collins, Chief Marketing Officer

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Matt is chief marketing officer (CMO) for Calix, leading all corporate, field, and product marketing. Over the course of his career, he has built and led marketing and strategy teams at Dun & Bradstreet, IBM, McKinsey and Merck. Most recently, as SVP global marketing and go-to-market strategy at Dun & Bradstreet, Matt built D&B’s enterprise marketing capabilities and led the launch of its new cloud solutions and Global Lines of Business. Prior to joining D&B, he spent over a decade at IBM in senior Marketing and Strategy roles across IBM’s Software, Hardware and Services businesses. While at IBM Matt also led several cross-IBM “Smarter Planet” growth initiatives including Smarter Computing, Social Business and Smarter Workforce. While at McKinsey, he worked with many of the firms leading clients to help them transform their go-to-market strategies. Matt received his MBA from Harvard University and a B.A. from Dartmouth College.

Michel Langlois, Chief Development Officer

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Michel is responsible for R&D strategy, product development, engineering processes, product quality, and R&D strategic partnerships. He has more than 32 years of experience in networking technologies, large-scale software development, engineering management, and methodologies. Before joining Calix, Michel was Senior Vice President, Junos software at Juniper Networks. Prior to Juniper, he served as Senior Vice President, Network Software and System Technology Group (NSSTG) responsible for the IOS software/platform at Cisco Systems. Michel has a BSEE from the Université de Sherbrooke in Quebec, Canada.

Suzanne Tom, Senior Vice President, General Counsel

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Suzanne is general counsel for Calix and oversees all legal and regulatory aspects of the company's business. A seasoned tech sector veteran, Suzanne provides a wealth of diverse experience in the practice of law to Calix. Prior to joining Calix, Suzanne was vice president, corporate legal and compliance at Verifone Systems, Inc. Previously, she held a number of legal and corporate roles at Latham and Watkins, the U.S. District Court of Northern California, ONI Systems, Turnstone Systems, and Ernst & Young LLP. Suzanne has a JD from UC Hastings College of the Law, a BS in Business Administration from UC Berkeley and qualified as a CPA with Ernst & Young.

Mehdi Bradaran, Senior Vice President, Product Operations

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As senior vice president of product operations, Mehdi is responsible for all systems hardware development, manufacturing operations, supply chain management, and quality systems. Mehdi has over 30 years of development and operations experience in the aerospace and telecommunications industries. Prior to joining Calix, Mehdi held management positions at DSC/Alcatel and led engineering teams in hardware development and system integration of next generation digital loop carriers. Mehdi has also held various development and management positions at Lear Astronics and PowerTec. He holds a BSEE from Utah State University and an MSEE from West Coast University.

Mark Dressler, Senior Vice President, Global Sales

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Mark is senior vice president of global sales for Calix and has 30 years of experience in the communications service provider industry. Mark is responsible for all sales activities at Calix leading a team working to transform our customers business and services models. Before joining Calix, Mark held a variety of executive sales, marketing, and business development roles at Nortel. Mark previously held various senior engineering and management positions in the communications industry. Mark has a BSEE from Purdue University.

Shane Eleniak, Senior Vice President, Platforms

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Shane is the SVP Platforms at Calix, leading Product Management, Engineering and Cloud Operations. He has more than 25 years of experience creating software and networking innovation. Prior to joining Calix, Shane was the Group Vice President of the Advanced Broadband Solutions (ABS) business unit at CommScope, responsible for all edge, access and CPE products within the Broadband Division. Earlier in his career, Shane was EVP of Marketing and Business Development for Alloptic where he was the corporate officer responsible for all product and commercial operations. Shane previously held several key executive management positions in marketing, product management, business development and engineering at such industry leaders as Corrigent Systems, Alcatel-Lucent, and Telus. Shane holds a B.Sc. in Electrical Engineering from the University of Alberta.

Todd Ortberg, Senior Vice President, Strategic Development

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Todd is senior vice president of strategic development for Calix. Todd has spent 34 years in the telecommunications industry in a variety of executive and technical leadership roles. At Calix he leads all merger, acquisition, and divestitures, as well as strategic development guidance. Previously, he was President and CEO of network software technology vendor Alvarri, which was sold to Bakbone, then Dell. Prior to Alvarri, Todd was a venture capitalist with Coral Capital Management, where he led all communications investments in dozens of venture backed companies, including investing in Calix. Todd has also held executive leadership roles at ADC Telecommunications, leading the Access Division as vice president and general manager and previously vice president of engineering. Prior to ADC, Todd held numerous marketing and engineering management positions with Rockwell International and Texas Instruments, and was an adjunct faculty member at Upper Iowa University, teaching Business Strategy. He has a BS in engineering from Iowa State University and an MBA from the University of Iowa, Tipple School of Management. Science in Engineering from Iowa State University.

Martha Galley, Vice President, Customer Engagement

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Martha leads our customer engagement organization, including the Support, Success and Education Services teams among others. She joined us most recently from Salesforce where her team built the Global Programs, Services and Content Assets for Customer Success serving over 200K customers world-wide. Prior to Salesforce at Microsoft, Martha built the Telco Partner Channel and Go-to-Market strategy for launching Office365 as part of Value-Added bundles to Small Business customers across Latin and South America.

Teri Koreen, Vice President, Supply Chain Operations

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Teri is vice president of supply chain operations for Calix, leading a global organization responsible for new product introduction, planning, supplier and contract manufacturer management, logistics, order fulfillment, and quality systems engineering. Teri brings over 20 years of operations experience in the telecommunications industry to her role of delivering profitable growth by creating a flexible, efficient supply chain. Prior to joining Calix, Teri held management positions at Turin Networks and process engineering and supply chain design roles at Agilent and Hewlett Packard. Teri earned her MBA from University of Phoenix and holds a BS in Industrial Engineering from Stanford University.

Jill Von Berg, Vice President, Information Technology

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Jill is vice president of information technology with responsibility for Calix IT strategy, enterprise applications, infrastructure, operations and information security. Jill joined Calix in 2010 with over 25 years multinational leadership experience in global high tech industries. Before joining Calix, Jill was vice president of Corporate IT at McKesson Corporation and held IT leadership positions at Hewlett Packard. Previously, Jill spent 10 years with ABB in Switzerland, where she built and led a worldwide IT shared services center for the ABB Group, and directed global technology programs for ABB Power. Earlier, Jill held various information systems management positions at GE Aircraft Engines, Ohio. Jill holds a BS in Engineering from the University of Leicester, England.