Talari Networks Leadership Team

Talari Management Team

Patrick Sweeney

Chief Executive Officer

Sweeney brings a wealth of executive operating experience in high-growth network infrastructure markets, having served in multiple executive roles over his 16 years at SonicWall and Dell, Inc. Sweeney helped take network security company SonicWall private under Thoma Bravo in 2010, and in 2012 sold the company to Dell where he served as Vice President of Security Marketing in the Dell Software Group. In 2016 Sweeney helped spin out SonicWall from Dell as an independent company under private equity firm Francisco Partners.

Sweeney earned his MBA from Santa Clara University, Leavey School of Business, and a BSM from Tulane University, and succeeds former CEO Mark Masur, who will remain as chairman on Talari’s board of directors.
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John Dickey

Co-Founder, President and Chief Operating Officer

Before co-founding Talari, John was senior director of software engineering at Applied Microcircuits (AMCC), where he led the architecture, design, and development of a broad array of switching and routing protocol software implementations for embedded systems. John joined AMCC upon its acquisition of MMC Networks, the pioneering maker of network-optimized processors (NPUs). He was also the founding Chair of the Network Processing Forum industry standards organization's Software Working Group and holds patents in multiple areas of networking technology. Prior to MMC, John held a variety of engineering and management positions at IBM and was distinguished as an Advisory Engineer. John earned a degree cum laude in computer science from the University of Pittsburgh.
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Bob Mosteller

Chief Financial Officer

Bob brings over 20 years of business experience, with CFO and COO leadership roles in venture capital, financial services, logistics and commercial construction. As CFO of Talari, Bob will oversee all financial and operational needs. Bob comes to Talari from Teakwood Capital, where he served as CFO to deliver financial, investment, and operational expertise to the firm and its portfolio companies. Prior to Teakwood, he served as CFO with Silver Creek Ventures and was responsible for the operations, finance, accounting and administrative functions for their investment funds and worked closely with the financial operations groups of their portfolio companies to assist in budgeting, reporting, raising equity and bank related capital. Additionally, he participated in closing dozens of equity financings in both the Texas and Silicon Valley markets. Bob earned his Bachelor’s degree in accounting from Texas A&M University and resides in Dallas, Texas.
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Atchison Frazer

WW Head of Marketing

Atchison Frazer brings over 20 years of IT strategic marketing expertise to Talari, most recently as CMO of Xangati, a hybrid-cloud IT infrastructure performance management software provider acquired by Virtual Instruments. Prior to Xangati, Atchison was global marketing leader for ADC-vendor KEMP Technologies and also Gnodal Ltd (now part of Cray), an innovator of High Performance Computing data-fabric technology and High Frequency Trading fintech infrastructure.

Previously, Atchison was responsible for services strategy, global marketing and sales enablement to support Cisco’s global enterprise theatre and enterprise transformation market segments, including enterprise security software, network optimization services and application visibility management solutions. Atchison also has held senior marketing management roles with Fortinet and HP Enterprise. Atchison earned a B.A. in Political Science from the University of Louisville.
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George Just

VP of Sales – Central

George has over 30 years of experience in networking as an engineer, sales manager, and sales leader. Prior to joining Talari, George was the Director of Sales for Alcatel Internetworking where he led multi-tiered sales efforts for their ethernet switch/router business in North America. George joined Alcatel upon its acquisition of Xylan, a pioneer in the Ethernet Switch and VLAN markets, where he successfully developed a successful channel and distribution sales division after starting as one of the initial sales professionals hired at the start-up. Prior to Xylan, George held a variety of sales, management and engineering positions at Proteon, Sprint, Telenet and Fibronics.
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Jeff Zeichick

VP of Sales – East & UK/EMEA

Jeff Zeichick brings more than 25 years of sales experience in IT infrastructure, Cloud, Virtual, Wireless, and software industries.  He has been with Talari over 5 years, and is currently responsible for managing Sales in the US-East as well as our team in Europe. 
Most recently, he was Vice President of North American Sales at Telepo, a Unified Communications company, sold to Mitel, and held both the Vice President of Sales, Americas and Vice President Sales and Channels, EMEA at Global IP Solutions (a Google-acquired company).  At GIPS he grew the company’s revenues year-over-year and helped to establish the company as a worldwide market leader in media processing software (Voice and Video) with nearly 1 billion users of its technology deployed worldwide. 
Previously, Jeff held Sales Engineering and Sales Management roles at Spike Broadband Systems (Broadband wireless access solutions for Service Providers– acquired by REMEC), Mysticom (Integrated Circuits for the Enterprise, Datacenter, and Storage Markets) and a Manufacture Representative providing embedded technology solutions across wide range of market segments and applications.
Jeff holds a Bachelor’s of Science Degree in Computer Engineering with a focus in Marketing and Economics from the University of Massachusetts.
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Patrick Reilly

VP Sales – West

Patrick brings over 30 years of experience in sales leadership positions for high tech firms. He excels at closing business, establishing partnerships, building winning teams and achieving profitability. He was the Vice President of Sales for five companies that eventually achieved equity events. He ran the revenue generation efforts for companies sold to Safenet (Cylink), SAIC (Cloudshield), Cisco (Broadware), Tyco (Proximex) and Watchguard (Hexis). He also is the author of blogs that provide a roadmap and lessons learned for entrepreneurs navigating the treacherous waters of a startup sales organization.
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Ian Hillyard

Regional Sales Manager – UK/EMEA

Ian has over 25 years IT Sales and Sales Management experience in the UK and Europe. He has previous experience of successfully growing organizations of various sizes managing both direct and indirect sales teams within Enterprise Software and IT Services organizations. Prior to joining Talari Ian was with Riverbed where he spent five years increasing the UK revenues as Regional Sales Manager. Ian has also held a number of other senior sales and sales management roles at Computer Associates, Infogain, SAS, iPlanet (Sun MicroSystems), Systems Centre and Simware.
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Board of Directors

Mark Masur

Chairman of the Board

Mark joined Talari’s board of directors in 2010, bringing his expertise in carrier infrastructure, networking and wireless communications. He founded Silver Creek Ventures in 1990 and has been active in the management of a number of the companies in which he has invested over the years. Some of his prior investments include ONI Systems (ONIS) a San Jose based early leader in optical networking sold to Nokia, MetroPCS, a Dallas based wireless service provider, and early in his career, Xilinx, Inc., a pioneer in the PGA semiconductor market. Mark’s investment philosophy is to remain active in the management of his portfolio companies at critical points in their growth trajectory. Mark received a Bachelor of Science degree from Weber State College and a Master of Business Administration from the University of Denver.
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H. DuBose Montgomery

Managing Director, Menlo Ventures

DuBose was a founder of Menlo Ventures in 1976, and has been an active director in many of the Firm's portfolio companies over the past 35 years. At Menlo, DuBose focuses on investments in leading companies in the information technology sector. Some of his current investments and board seats include: Entone, Firetide, freightquote.com, Mr. Number, NComputing. His prior investments include: Asthmatx, acquired by Boston Scientific (BSX); EndoVascular Technologies, acquired by Johnson & Johnson (JNJ); Frame Technology Corporation, acquired by Adobe Systems (ADBE); Gilead Sciences (GILD); Infoseek Corporation, acquired by the Walt Disney Co. (DIS); LSI Logic Corporation (LSI); Valid Logic Systems, acquired by Cadence Design Systems (CDNS) and VNUS Medical Technologies (VNUS), acquired by Covidien (COV). DuBose is a graduate of the Massachusetts Institute of Technology (B.S. in Electrical Engineering, M.S. in Electrical Engineering, B.S. in Management Science) and the Harvard University Graduate School of Business Administration (M.B.A.). He previously served as a trustee of the Corporation of the Massachusetts Institute of Technology and on the MIT visiting committees for the Department of Electrical Engineering and Computer Science and for Sponsored Research.
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Tom Pettigrew

Board Director

Tom Pettigrew has significant experience helping companies succeed in worldwide markets by selling, building sales teams, strategic alliances, OEM partnerships, channel sales and international development. Since retiring from Talari Networks in 2011, Tom has been building a vineyard, growing grapes and investing in a winery in the Lake Chelan AVA of Eastern Washington while serving on the board of directors of the region’s wine alliance. Tom is also an angel investor in several technology companies which have leveraged his expertise and industry contacts. Tom worked at Talari Networks as VP of Sales from 2009 to 2011, establishing key sales processes and laying down a strong leveraged sales foundation. Tom is also an investor in Talari Networks. An early pre-IPO employee of Isilon Systems, Tom forged Isilon’s channel and OEM programs and established Isilon’s international operations in Japan/Korea, EMEA [Europe Middle East Africa], APAC [Asia Pacific] and Latin America. Isilon had a very successful IPO in 2006 and was purchased by EMC in 2010 for $2.25B. Tom was also a very early employee of F5 Networks from 1997 to 2003 establishing global relationships with companies such as Dell, Ericsson, Hewlett-Packard, IBM, NTT, EDS and Nokia as well as assisting the establishment of F5’s international operations. While at F5 Networks, Tom grew channel sales to 90 percent of the company's total sales worldwide, and in 2003 was named a top channel executive in the United States by Computer Reseller News. Previously, Tom was in sales at NetFRAME, Inc., which developed highly scalable network servers for local and wide area networks and Sequent Computer Systems, an innovator of symmetric multiprocessing systems, later acquired by IBM. Tom has a bachelor's degree in economics and a Master's of Business Administration from the University of Washington.
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Andy Gottlieb

Co-Founder and Board Director

A leading expert in WAN/LAN switching and routing, Andy co-founded Talari Networks and served as its first CEO after previously serving in executive roles in both startups and public corporations. He was Vice President of Marketing at RouteScience, a route optimization startup, and before that led marketing at MMC Networks, the pioneering Network Processor developer, through its $4.5B acquisition by Applied Micro Circuits Corporation (AMCC) in 2000. Andy also served on the board of LVL7 Systems, a network processing software company. Previously, he spent more than a dozen years at 3Com Corporation, highlighted by his leadership of the Switching Systems business unit through its development and introduction of the CoreBuilder 9000 enterprise switching platform. He also served as 3Com's Vice President of Marketing for Large Enterprise Markets and held a number of other senior marketing, product management, and engineering roles. He holds a Bachelor of Arts degree from Wesleyan University and a Master of Science degree in computer science from Stanford University.
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Patrick Sweeney


Sweeney brings a wealth of executive operating experience in high-growth network infrastructure markets, having served in multiple executive roles over his 16 years at SonicWall and Dell, Inc. Sweeney helped take network security company SonicWall private under Thoma Bravo in 2010, and in 2012 sold the company to Dell where he served as Vice President of Security Marketing in the Dell Software Group. In 2016 Sweeney helped spin out SonicWall from Dell as an independent company under private equity firm Francisco Partners. Sweeney earned his MBA from Santa Clara University, Leavey School of Business, and a BSM from Tulane University.
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