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Recognized Leaders in Telecom and Data Networking

Executive Team

The world's largest telecommunications vendor focused solely on access, Calix offers a Unified Access portfolio of broadband communications access systems and software that enables communications service providers worldwide to transform their networks and businesses to become the broadband provider of choice to their subscribers. To foster this vision, Calix has assembled a world-class senior management team from a broad variety of successful telecom and data networking companies.

Leadership
  • bio

    Carl Russo

    President and
    Chief Executive Officer

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    William Atkins

    Executive Vice President and
    Chief Financial Officer

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    Michael Weening

    Executive Vice President
    Global Sales

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    Mehdi Bradaran

    Senior Vice President
    Product Operations

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    John Colvin

    Senior Vice President
    North American Sales

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    Michel Langlois

    Senior Vice President
    Systems Products

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    Andy Lockhart

    Senior Vice President
    International Sales

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    Todd Ortberg

    Senior Vice President
    Strategic Development

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    Diane Prins Sheldahl

    Senior Vice President
    Talent and Culture

  • bio

    Miguel Alonso

    Vice President
    Software Products

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    Robert Balsamo

    Vice President
    Advanced Technology and Architecture

  • bio

    Sheila Cheung

    Vice President
    Finance and Accounting

  • bio

    Mark Dressler

    Vice President
    Major Account Sales

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    Shane Eleniak

    Vice President
    Product Line Leadership

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    Nathan Harrell

    Vice President
    National Account Sales

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    Eoin Heaney

    Vice President
    Partners

  • bio

    Skip Hirvela

    Vice President
    Regional Sales, US

  • bio

    Michael Horn

    Vice President
    Strategic Alliances

  • bio

    Teri Koreen

    Vice President
    Supply Chain Operations

  • bio

    Gilbert Lévesque,

    Vice President
    Product Engineering

  • bio

    Omar Ramadan

    Vice President
    Customer Services

  • bio

    David Seda

    Vice President
    Marketing

  • bio

    Purnam Sheth

    Vice President
    Core Infrastructure

  • bio

    Suzanne Tom

    Vice President
    General Counsel

  • bio

    Jill Von Berg

    Vice President
    Information Technology

Carl Russo

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.

William Atkins

William is executive vice president and CFO of Calix. Prior to Calix, William was a senior partner at Fairfax Media Partners, LLC, a Washington DC area investment and advisory firm. He also served as CFO of Rivada Networks International, LLC, a provider of mobile emergency communications equipment and services for the homeland security and public safety sectors and as EVP and CFO of Intelsat, Ltd., the world’s largest fixed satellite telecommunications services operator. Before joining Intelsat, William held various positions at Morgan Stanley, including head of European telecommunications corporate finance, head of European corporate finance execution and deputy head of investment banking in Tokyo. Prior to Morgan Stanley, he co-founded the telecommunications investment banking practice at S.G. Warburg. William has a BA and an MA from Stanford University.

Michael Weening

Michael is the executive vice president of global sales for Calix. 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.

Mehdi Bradaran

As senior vice president of product operations, Mehdi is responsible for all systems hardware development, manufacturing operations, supply chain management, and quality systems. Mehdi also oversees all aspects of the Calix Development Center operations in China. 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.

John Colvin

John is senior vice president of North American sales for Calix. John has over 25 years of experience in the networking and telecommunications industries. Before joining Calix in April, 2004, John was senior director of business development at Cisco, where he assisted in driving overall sales strategy and portfolio direction in the global service provider market. John joined Cisco in 1999 as a result of the acquisition of Cerent Corporation, where he was director of national carrier sales. Prior to Cerent, John was account vice president for AT&T at Alcatel. During the first half of his eight-year career with Alcatel, John was the manager responsible for day-to-day engineering activities, sales support, and program management of projects with AT&T, MCI, and Sprint. John joined Alcatel through its acquisition of Rockwell International, where he was a systems engineer. Earlier, John was an engineer with NEC America. John has a BS in electrical engineering from Texas A&M University.

Michel Langlois

Michel is responsible for all systems product development and strategy across the Calix Unified Access portfolio. He has more than 25 years of experience in networking technologies, large-scale software development, and engineering management. 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.

Andy Lockhart

Andy is senior vice president, international sales, with responsibility for the establishment and development of international business for Calix. Andy joined Calix after over 20 years at Cisco, where he held a wide range of international and cross-cultural leadership roles. Andy was instrumental in establishing several of Cisco's key international business operations, including Cisco Japan, the Asia Pacific partner network, the UK sales operation, and the European service provider organization. He also led a number of significant Cisco international organizations, serving as vice president responsible for Cisco in Japan, Northern Europe, and the Benelux countries. Andy is a dual British-Canadian citizen and has trilingual capabilities in English, French, and Japanese. He holds an MBA from the Stanford Graduate School of Business and a BSEE from the University of British Columbia.

Todd Ortberg

Todd is senior vice president of strategic development for Calix. In this role Todd has responsibility for new market development for Calix, both organic and inorganic. Todd has 29 years of experience in the communications, networking, and software industries. Before joining Calix, he was president and CEO of network software technology vendor Alvarri. Prior to Alvarri, Todd was managing director of Coral Capital Management, where he oversaw communications investments in dozens of venture backed companies. Todd has also held leadership roles at ADC Telecommunications, where he served as vice president and general manager of its Cable Access Systems division and vice president of engineering. Prior to ADC Todd held numerous marketing and engineering management positions with Rockwell International and Texas Instruments, where he worked on wireless systems, and he was an adjunct faculty member at Upper Iowa University, where he taught Business Strategy. Todd has an MBA from the University of Iowa and a Bachelor of Science in Engineering from Iowa State University.

Diane Prins Sheldahl

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.

Miguel Alonso

Miguel is vice president of software products and leads the product marketing, product development, and network operations organizations responsible for the delivery of all Calix Software Products. Prior to his current role, Miguel held a variety of business and product management responsibilities at Calix. Miguel brings over 20 years of experience in the industry and perspectives from a number of different communications companies, including Advanced Fibre Communications (AFC), where he was director of sales, responsible for all sales activities in Latin America and the Caribbean. Miguel has also held engineering, technical marketing, and technical sales support roles at Phonic Ear, Olivetti and Hewlett Packard. Miguel has a Telecommunications Engineering degree from the Universitat Politècnica de Catalunya in Spain.

Robert Balsamo

Robert is vice president, advanced technology and architecture, and leads the systems engineering and architecture team that is responsible for specifying the system/product architectures and the detailed engineering requirements for Calix's product solutions. He has over 25 years of experience in data communication and telecommunications, in which the majority has been in access networks. In his previous senior management positions at AT&T Paradyne and Paradyne, his responsibilities included VP of product Management, marketing and business development and VP of global carrier markets. Additionally, Robert spent several years at Tellabs where he was responsible for international marketing of their carrier class router/switch products specifically designed for Tier 1 carriers.

Sheila Cheung

As Vice President Finance and Accounting, Sheila leads all the accounting functions and external financial reporting for Calix. Prior to joining Calix, Sheila held a number of senior leadership accounting and financial positions for over 20 years, including serving as Vice President, Corporate Controller and Vice President, Finance for a number of public and private technology companies, including Risk Management Solutions, Dionex Corporation, MDS Analytical Technologies, and Synplicity. Sheila began her career in public accounting at PwC, is a California Certified Public Accountant, graduated from University of California, Los Angeles with a B.A. in Economics, and earned a Certified Director of Corporate Governance from UCLA Anderson School of Management Executive Program.

Mark Dressler

Mark is vice president of major account sales for Calix. Mark leads sales groups focused on tier-one and tier-two US service providers as well as all service providers in the Caribbean and South America. Before joining Calix, Mark held a variety of senior sales, marketing, and business development roles at Nortel, most recently serving as director of market development for broadband networks. Prior to Nortel, Mark held various senior engineering and management positions in the software industry. Mark holds a BS in electrical engineering from Purdue University.

Shane Eleniak

Shane is responsible for product strategy, positioning, and systems roadmaps at Calix. He has more than 25 years of experience in the telecommunications industry. 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 guided product, sales and corporate strategy to deliver the industry's first 10G EPON and RFoG products. Shane previously held several key management positions in marketing, strategy, business development and engineering at such industry leaders as Corrigent Systems, Newbridge Networks, and Telus. Shane holds a B.Sc. in Electrical Engineering from the University of Alberta.

Nathan Harrell

Nathan is vice president of national account sales at Calix, focused on tier-two U.S. service providers. An industry veteran, Nathan has over 25 years of experience in generating growth with successful companies. Prior to Calix, Nathan was vice president of sales at Occam Networks (acquired by Calix). Nathan also served as vice president of sales (Americas) for Redback Networks. Before that, he served in several capacities at Cisco Systems, including area director for the greenfield area and operations director/general manager positions for both the Qwest and Sprint accounts. Earlier in his career, Nathan held positions at Telco Systems as vice president of sales, Sprint as director of national sales and Scientific Atlanta.

Eoin Heaney

Eoin Heaney is vice president of partners for Calix, responsible for developing and managing the relationships with Calix Strategic Partners worldwide, including overall responsibility for the global field relationship with Ericsson. Before joining Calix, Eoin served as sales director of global alliances at Tellabs. While at Tellabs, he was responsible for the company's strategic partnerships with Ericsson and Nokia Siemens Networks, while also contributing to the overall direction and management of Tellabs' global partner program. Prior to Tellabs, Eoin held a variety of senior positions in marketing and sales at Avnet in both Ireland and Japan. With over 20 years in telecommunications, Eoin has also held positions at MDS Gateways and Amdahl Corporation. A native of Ireland, Eoin earned his BS in Applied Physics and Microelectronics from Dublin City University.

Skip Hirvela

Skip is vice president of U.S. regional sales for Calix and is responsible for all direct sales activities to service providers in all 50 states and protectorates. A 20 year veteran of the telecommunications and networking industry, Skip previously was a regional sales manager at Calix, leading targeted sales teams to market leadership positions across numerous geographies. Prior to Calix, Skip held numerous sales and marketing roles at the director or manager level at a variety of telecommunications firms, including Myrio, NetworkTwo Communications, DecisionOne, Reltec, and AT&T Global Information Systems. Skip holds a BS degree in business administration from Miami University and an MBA from the University of Dayton.

Michael Horn

Michael Horn is vice president of strategic alliances for Calix, responsible for leading the establishment and execution of global alliances and partnerships. Before joining Calix, Michael served as global director of business development for Ericsson's IP and broadband product area. While at Ericsson he was responsible for mergers and acquisitions with an emphasis on global partnerships across the Optical, IP, Broadband, and Microwave product lines. Prior to Ericsson, Michael was global channel director at Redback Networks, responsible for channel development and management of partnerships including Ericsson, Nokia, Alcatel, and ZTE. Michael's over 25 years of telecommunications experience also includes sales, sales engineering, and various operational roles at Qwest, MCI, and GTE. Michael holds an MBA from the University of Denver, a BS/BA from Marylhurst University, and various management and mergers and acquisitions certificates from UCLA and Northwestern University.

Teri Koreen

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.

Gilbert Lévesque,

Gilbert is responsible for systems product engineering at Calix, leading the team that delivers new innovations to the Calix Unified Access portfolio. Throughout his career, he has been a leader of product development teams at a variety of prominent companies across the access and core networking domains. Prior to joining Calix, Gilbert was a senior product development leader at Juniper Networks, Tellabs, and Fujitsu Network Communications. Gilbert holds a Master's degree in Systems Sciences, as well as Bachelor's degrees in Computer Science and Electrical Engineering from the University of Ottawa.

Omar Ramadan

Omar is vice president of customer services for Calix, responsible for customer support, consulting, professional services, training, and warranty services globally. He has over 20 years of customer service experience in the networking and telecommunications industries. Prior to joining Calix, Omar was with Advanced Fibre Communications (AFC) working in a number of support-related positions, most recently as director of technical services. At AFC, Omar was responsible for building a technical organization that supported over 750 North American service providers. Before AFC, Omar managed installation activities of outside plant loop electronics at DSC (now part of Alcatel). Omar earned a BS in electrical engineering from Texas A&M University.

David Seda

David is vice president of marketing, responsible for the marketing of Calix software, systems, and solutions globally. He joined Calix in August 2011 with 25 years of international experience in networking, consumer electronics, and enterprise technologies. He spent 13 years at Cisco, most recently serving as managing director and general manager of West Africa Sales. Previously, in London he was head of marketing for Cisco Europe, Middle East & Africa (EMEA), helping establish Cisco's presence in emerging markets. Earlier at Cisco headquarters, David was senior director of corporate marketing, where he developed strategic global marketing programs. At Hewlett Packard, David was vice president of marketing for EMEA. Before HP and Cisco, he spent 10 years at Apple in engineering, marketing, and later as senior director of communications reporting to the Apple CEO. David holds an MBA from Texas Tech University and Bachelor's degrees in Computer Science, Economics, and Business Management from Graceland University in Iowa. He is currently a guest lecturer at the Helsinki School of Economics in Finland.

Purnam Sheth

Purnam is responsible for development of the core systems infrastructure for the Calix Unified Access portfolio. Throughout a career where he has led development teams at leading companies focused on networking, mobile, and cloud technologies, Purnam has leveraged innovation and operational excellence to consistently deliver winning products in carrier class environments. Prior to joining Calix, Purnam held key executive product development roles at Pelican Imaging, Blackberry, and Cisco. Purnam holds a Bachelor's degree in Mathematics from the University of Waterloo.

Suzanne Tom

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.

Jill Von Berg

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.

Directors
  • Don Listwin

    Chairman

  • Christopher J. Bowick

    Director

  • Kevin DeNuccio

    Director

  • Michael Everett

    Director

  • Michael Flynn

    Director

  • Michael Matthews

    Director

  • Thomas Pardun

    Director

  • Kevin Peters

    Director

  • Carl Russo

    President and
    Chief Executive Officer

Don Listwin

Don Listwin is founder and chairman of Canary Foundation, a non-profit organization devoted exclusively to early detection of cancer. A 30-year veteran of the networking industry, Don was CEO of Openwave from 2000 to 2004 and held senior executive positions at Cisco Systems between 1990 and 2000. Don serves on the board of directors of Clustrix Inc., Genologics Life Sciences Software Inc., Teradici Corporation, and Joyent, Inc., each a privately-held company. Don is a member of the board of scientific advisors of the National Cancer Institute, a research and development center. Don holds an honorary Doctorate of Law degree from the University of Saskatchewan and a Bachelor of Science degree in Electrical Engineering from the University of Saskatchewan.

Christopher J. Bowick

Chris brings to the Calix board of directors extensive experience in advising and managing companies in the technology and telecommunications industries. Chris has held leadership positions at these cable companies: Cox Communications, Charter Communications, and Jones Intercable (now part of Comcast), as well as Scientific-Atlanta (acquired by Cisco), a manufacturer of cable television, telecommunications, and broadband equipment. Chris currently serves on the boards of directors of ViXS Systems and Minerva Networks. Chris earned an MBA from the University of Colorado in 1997, and a bachelor's degree in electrical engineering from the Georgia Institute of Technology in 1977.

Kevin DeNuccio

Kevin DeNuccio has over 25 years of leadership experience at communications technology companies and service providers worldwide. Kevin is the president and chief executive officer of Violin Memory and a member of the Violin Memory Board of Directors. He joined Violin Memory in February, 2014. Kevin previously served as CEO of Metaswitch Networks from 2010 until June of 2012 when he transitioned to a director position on the Metaswitch Board. Prior to 2010, Kevin served as CEO of Redback Networks, where he helped the company become the fastest growing vendor in its market segment, leading to its $2.1 billion acquisition by Ericsson in 2007. From 1995 to 2001, he held a number of executive positions at Cisco Systems, including senior vice president of worldwide service provider operations. Prior to Cisco, Kevin was founder, president, and CEO of Bell Atlantic Network Integration, a wholly owned subsidiary of Bell Atlantic (now Verizon Communications). In addition to Calix and Metaswitch, he also currently serves on the Boards of SanDisk and Northeastern University.

Michael Everett

Michael Everett has over 30 years of financial, legal, and general management experience, including two different stints in China. Prior to Michael's retirement from Cisco in 2008, Michael served as a vice president of finance at Cisco Systems, Inc. and before that was chief financial officer of WebEx Communications prior to Cisco's $3.2 billion acquisition of the web collaboration leader. Prior to joining WebEx, Michael was chief financial officer of several public and private companies, including Netro Corporation, a broadband wireless equipment manufacturer that he led through a successful IPO in 1999, and Raychem Corporation, a Fortune 500 telecommunications and electronic components supplier. Before joining Raychem in 1987, he practiced securities law as a partner at Heller, Ehrman, White & McAuliffe. Michael holds a B.A. from Dartmouth College and a J.D. from the University of Pennsylvania Law School.

Michael Flynn

Michael brings to Calix's board of directors extensive experience in advising and managing companies in the technology and telecommunications industries. Michael has served in a variety of capacities including group vice president, at ALLTEL Corporation, an integrated telecommunications provider of wireless, local telephone, long-distance, competitive local exchange, Internet, and high-speed data services. Michael serves on the Board of Directors at Airspan Networks, a publicly-traded company providing wireless broadband access equipment. He is a member of the board of directors and audit and compensation committees of Atlantic Tel-Networks, a publicly-held, diversified telecommunications services provider, and he is owner and president of Deli Planet Inc., a privately-held company. Michael previously served on the board of directors of WebEx Communications, Inc., Equity Media Holdings Corporation, and iLinc, each a publicly-held company, and GENBAND Inc., a privately-held company. Michael earned his B.S. degree in Industrial Engineering from Texas A&M University in 1970. He attended the Dartmouth Institute in 1986 and the Harvard Advanced Management Program in 1988.

Michael Matthews

Michael brings to Calix's board of directors 30 years of experience in the technology industry, and a strong background in telecommunications, software, technology and innovation and has served on the Calix board directors since December 2010. From January 2012 through September 2013, Michael served as Chief Corporate Development Officer for the information technology company AGT International GMBH, responsible for AGT's research and development, new business ventures, and marketing. Prior to AGT, Michael served as Head of Strategy and Business Development at Nokia Siemens Networks, a telecommunications company, where he directed the company's strategic planning and investments, mergers and acquisitions program and strategic alliances and partnerships. Michael also served as Chief Marketing Officer at Amdocs Inc. From September 1999 to March 2002 he served as the Executive Vice President, Sales & Marketing, at Groove Networks, a privately held software company which was acquired by Microsoft Corporation. Prior to this, he served in leadership positions across technology companies in the United States and Australia such as Platinum Technology, Inc. a database management software company which was acquired by Computer Associates, Inc., Sterling Software, a software company which was acquired by Computer Associates, Inc., and Digital Equipment Corporation, which was acquired by Compaq Computer Corporation. Michael serves on the board of ArcherMobile, Inc. and Innovolt, Inc., both of which are privately held. He also serves as an advisor to the TMForum, a global trade association with over 900 member companies including communication service providers, digital service providers and enterprises. Michael has a degree in Civil Engineering from the University of Queensland, Australia.

Thomas Pardun

Thomas (Tom) Pardun has served as chairman of the board of directors of Western Digital Corporation, a manufacturer of hard-disk drives for the personal computer and home entertainment markets, since March 2007. He previously served as chairman of Western Digital from January 2000 to November 2001, and he has served as a director of Western Digital since January 1993. In July 2000, Tom retired as president of MediaOne International, Asia-Pacific (formerly US West Asia-Pacific), an owner/operator of international properties in cable television, telephone services, and wireless communications. Prior to that, he served as president and chief executive officer of US West Multimedia Communications, Inc. and held numerous other executive positions with US West. Prior to joining US West, Tom was president of the Central Group for Sprint as well as president of Sprint's West Division. He also served as senior vice president of United Telecommunications, a predecessor company to Sprint. Tom spent the first 19 years of his career at IBM. Tom served on the board of directors of Occam Networks, Inc. from September 2004 to January 2011. In addition to Western Digital Corporation, he serves on the boards of CalAmp Corporation, Finisar Corporation, and MaxLinear, Inc., each a publicly-held company. Tom received a B.B.A. in economics and marketing from the University of Iowa and Management School Certificates from Harvard Business School, Stanford University, and The Tuck School of Business at Dartmouth College.

Kevin Peters

Kevin brings to the Calix board of directors a wealth of leadership experience gained over the course of a 28-year career with AT&T, one of world's largest communications companies. Kevin has held numerous leadership positions including most recently as executive vice president of global business customer service in which he led AT&T's multinational customer service operation. Kevin's prior positions with AT&T include chief marketing officer, business; executive vice president, global network operations; and senior vice president, enterprise systems and software engineering. Kevin earned his B.S. from Fairfield University and subsequently earned an M.S. from Stevens Institute of Technology and an M.B.A. from Columbia University.

Carl Russo

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.