Executive Team

Brian Bronson

President and Chief Executive Officer

Brian leads Radisys as president and CEO after having held numerous management positions within the company, including chief financial officer, vice president of business development, treasurer and chief accounting officer. Before joining Radisys in 1999, Brian held multiple financial management roles at Tektronix, Inc. where he was responsible for investor relations and various finance and accounting functions both domestically and internationally. He has also practiced as a Certified Public Accountant with the accounting firm Deloitte and Touche LLP. Brian holds a bachelor’s degree in Business Administration and Communications from Oregon State University.


Jon Wilson

Chief Financial Officer

Jon is responsible for all aspects of the global finance, accounting, legal, and IT organizations. Prior to stepping into the CFO role, Jon served as Radisys’ director of finance where he was responsible for the corporate financial planning and analysis, sales operations, tax, treasury and legal functions. Previously, Jon served as Radisys’ corporate controller where he held broad responsibilities which included leading the global accounting organization, SEC reporting, and corporate compliance functions. Before joining Radisys in 2011, Jon served as an audit manager for KPMG where he focused on publicly listed software and high tech manufacturing clients. Jon has a B.S. degree in Accounting from Linfield College.


Andrew Alleman

Chief Technology Officer

Andrew serves as Radisys’ CTO, after having served as the company’s vice president of platform engineering. He has more than 20 years of experience in embedded systems architecture and design. Prior to joining Radisys in 2003, Andrew held the position of chief system architect at Copper Mountain Networks, where he was responsible for architecture of next-generation broadband services concentration and remote access systems. Previously, Andrew was co-founder and chief system architect of Oresis Communications, a Portland-based start-up focused on converged voice and data packet switching systems. He has held engineering management and design positions at ADC Telecommunications and worked in medical imaging systems with OptiMedX. Andrew holds a Bachelor of Science in Electrical Engineering from the Massachusetts Institute of Technology and a Master of Science in Electrical Engineering from the University of Washington.


Steve Collins

Vice President, Global Sales

Steve directs the Radisys’ Global Sales organization and brings more than 20 years of telecom experience and strong leadership in selling full systems, solutions and services to Telecom Equipment Manufacturers and Operators. He joined Radisys in 2013, after serving as Sonus Networks’ vice president and general manager of American Sales and Corporate Sales Strategy. He has a distinguished career in creating and leading revenue producing sales and marketing strategies within highly competitive markets. Steve holds a Bachelor of Arts in Economics from the University of Virginia.


Grant Henderson

Vice President, Media Engine and Corporate Marketing

Grant runs the MediaEngine business and oversees Radisys’ corporate marketing function. Prior to his current role, Grant led Radisys’ Merger and Acquisitions activities as well as the IT organization. Before joining Radisys in 2006, Grant was co-founder and executive vice president of marketing and strategy at Convedia Corporation, where he was responsible for the company’s marketing, business development and product strategy. Grant has also held marketing and product management positions at Newbridge Networks, Bell Canada and Telecom Canada/Stentor and has published papers in IEEE Multimedia and IEEE’s International Conference on Multimedia Computing and Systems. In addition, he holds a U.S. patent related to IP media processing. Grant received a Bachelor of Science in Computer Science from McMaster University in Canada and has completed postgraduate work at the University of Ottawa.


Hans Kramer

Vice President, Global R&D and Customer Support

Hans leads worldwide R&D and customer support for Radisys’ MediaEngine, FlowEngine and CellEngine product lines. He also oversees Radisys’ Professional Services organization, focusing on enabling Radisys’ customers to achieve fast time-to-market and deployments. Prior to this role, Hans held numerous positons at Radisys since joining the company in 2006. He served as vice president of software development, senior director of Trillium business development, and director of ATCA software development. Before joining Radisys, Hans was co-founder and CTO for TVAnywhere, a startup focused on delivering North American video content globally. Hans also served as vice president of R&D for Network Equipment Technologies (net.com) where he led the development for carrier solutions for broadband data and VOIP access. Hans has a Bachelor of Arts in Computer Science with minors in Queuing Theory and Economics from the University of California, San Diego.


Mac Lavier

Vice President and General Manager, Embedded Products and Hardware Services

Mac leads the embedded products and hardware services division of Radisys. During his tenure with Radisys, he has held a number of management positions including vice president of global operations & service as well as director of operations strategy and continuous improvement. Prior to joining Radisys in 2010, Mac spent nearly 14 years with Tektronix working in numerous global, development and operations leadership roles. Mac received his Executive Master of Business Administration from the University of Washington, Foster School of Business, and he holds a Bachelor of Science in Industrial & Management Engineering from Montana State University, Bozeman.


Tom McQuade

Vice President and General Manager, CellEngine and Trillium Software

Tom directs the CellEngine and Trillium Software division of the company, having previously served as Radisys’ senior director of Business Development and Worldwide Sales. Tom joined Radisys in 2012, after holding a number of senior sales and business development positions in the semiconductor industry. Prior to Radisys, Tom ran the Quality Control team at Signetics, worked in sales at Toshiba America and Brooktree, and then landed at Picochip where he became intimately involved in the maturing small cell market. Tom holds a Bachelor of Science in Combined Sciences from Santa Clara University and a Master of Science in Systems Management from the University of Southern California.


Bryan Sadowski

Vice President, FlowEngine Product Marketing

Bryan serves as vice president of FlowEngine Product Marketing, bringing more than 20 years of telecom expertise to the role, including extensive experience working directly with communications service providers. Prior to Radisys, Bryan was most recently vice president of Professional and Advanced Services for Sonus Networks, where he spent a decade in a variety of leadership positions, including sales, marketing and business and product development. He holds a Global Master of Arts in International Relations from Tufts University and a Bachelor of Arts in Mathematics from Boston College.


Cheryl Spencer

Vice President, Human Resources and Organization Development

Cheryl is responsible for all aspects of global HR and organization development, aligning Radisys’ people and organization practices across multiple regions to deliver on business results. Cheryl joined Radisys in 2006, and has more than 30 years of proven HR, OD, and management experience. Before joining Radisys, Cheryl held management positions at Tektronix and Mentor Graphics. She also held leadership and organization effectiveness consultant roles, both internal and external, to large global organizations and small growing businesses. Cheryl studied Business Administration and Management at the University of Portland.


Nitesh Varshney

Vice President and Managing Director, Radisys India

Nitesh holds responsibility for Radisys India and leads its Software R&D group. He has nurtured and grown Radisys India from its inception both in numbers and in business competencies. Nitesh joined Radisys through the Continuous Computing acquisition in 2011 and has been with the company since June 2005. He has spent 22 years in the telecom industry working in 2G/3G/4G wireless communications, digital switching, satellite communications, VoIP, network processors, signaling and media processing. Prior to Radisys, Nitesh worked at Intel (Trillium), Aricent, Alcatel and boot-strapped two start-up companies. He has led various functions globally including R&D, customer support, professional services, program management, partner management, quality, IT and more. Nitesh holds a Bachelor of Science in Electronics Engineering, a Master of Science in Software Systems and a Master of Business Administration in Operations Management.

Board of Directors

Brian Bronson

President and Chief Executive Officer

Brian leads Radisys as president and CEO after having held numerous management positions within the company, including chief financial officer, vice president of business development, treasurer and chief accounting officer. Before joining Radisys in 1999, Brian held multiple financial management roles at Tektronix, Inc. where he was responsible for investor relations and various finance and accounting functions both domestically and internationally. He has also practiced as a Certified Public Accountant with the accounting firm Deloitte and Touche LLP. Brian holds a bachelor’s degree in Business Administration and Communications from Oregon State University.


C. Scott Gibson

Chairman of the Board

C. Scott Gibson has served as a Director since June 1993 and as Chairman of our Board of Directors since October 2002. From January 1983 through February 1992, Mr. Gibson co-founded and served as Chief Financial Officer and Senior VP of Operations, then Executive VP and Chief Operating Officer and finally President and Co-Chief Executive Officer of Sequent Computer Systems, Inc. (“Sequent”), a computer systems company. Before co-founding Sequent, Mr. Gibson served as General Manager, Memory Components Operation, at Intel Corporation. Since March 1992, Mr. Gibson has been a director to high technology companies as his full time occupation. Mr. Gibson serves on the boards of several other companies and non-profit organizations, including Qorvo, Inc., Pixelworks, Inc., NW Natural, and non-profits St. Johns Medical Center, and Community Foundation of Jackson Hole. During the past five years, Mr. Gibson was previously a director of Triquint Semiconductor, Inc. and Verigy, Pty. Each of the boards of directors of the public companies for which Mr. Gibson serves as an audit committee member has determined that he is an “audit committee financial expert” as that term is defined by the rules and regulations of the SEC. Mr. Gibson holds a B.S.E.E. and a M.B.A. from the University of Illinois.


Hubert de Pesquidoux

Hubert de Pesquidoux has served as Director since April 2012. Mr. de Pesquidoux is a former senior executive of Alcatel-Lucent SA, with a 19-year career until 2009. His last position was Chief Financial Officer of Alcatel-Lucent and President of its Enterprise Business Group. Mr. de Pesquidoux was also previously a member of the Alcatel Executive Committee and held various executive positions including President and Chief Executive Officer of Alcatel North America, Chief Executive Officer of Alcatel Canada (formerly Newbridge Networks) and Chief Financial Officer of Alcatel USA. Mr. de Pesquidoux has served as Chairman of the Board for Tekelec. Mr. de Pesquidoux is currently Executive Partner at Siris Capital, a private equity firm focused on making control investments in data/telecom, technology and technology-enabled business service companies in North America. He is the Chairman of the Audit Committee and member of the Board of Directors of Sequans Communications S.A, and Criteo SA as well as a member of the Board of Directors of TNS. He is also a member of the UPMC Information Technology Board of Visitors, which advises UPMC on matters generally related to information technology strategy, acquisition and implementation. Mr. de Pesquidoux holds a master’s degree in Law, is a graduate of Sciences Po Paris (Finance and Economics) and holds a DESS in International Affairs from Paris Dauphine University.


M. Niel Ransom

M. Niel Ransom has served as a Director since August 2010. Mr. Ransom is a principal of Ransomshire Associates, Inc., an advisory firm he founded in 2005. He also serves as a board member of Cyan Inc., a provider of packet-optical transport platforms; Polatis, a provider of high performance optical switch solutions in optical communications; MultiPhy, a provider of integrated circuits for high-speed optical communications; and Saguna Networks, a provider of mobile edge computing solutions. During the last five years, Mr. Ransom was previously a director of ECI Telecom, a provider of networking infrastructure equipment and Applied Micro, a processor and communication device manufacturer. Previously, as worldwide CTO of Alcatel and a member of its Executive Committee, he was responsible for research, corporate strategy, intellectual property and R&D investment. Prior to that, he directed Alcatel’s access and metro optical business in North America. Earlier in his career, he directed the Advanced Technology Systems Center at BellSouth and various development and applied research organizations in voice and data switching at Bell Laboratories. He holds a Ph.D. in electrical engineering from the University of Notre Dame, BSEE and MSEE degrees from Old Dominion University, and an MBA from the University of Chicago.


Vincent H. Tobkin

Vincent H. Tobkin has served as a Director since May 2012. Mr. Tobkin was a senior advisor, retired director and global telecom/technology practice leader of Bain & Company, serving from 1992 to 2012. He joined Bain & Company after serving as a general partner and a founder of Sierra Ventures in 1984. He was a partner and consultant with McKinsey and Company from 1976 to 1984. Mr. Tobkin was previously a Director as well as co-leader of the technology practice,  and Chairman of Tellabs. Mr. Tobkin holds J.D. and M.B.A. degrees from Harvard University and S.B. and S.M. in Electrical Engineering degrees from the Massachusetts Institute of Technology.


Ronald J. de Lange

Ronald J. de Lange has served as a Director since July 2015. Mr. de Lange is the former President, Chief Executive Officer and board member of Tekelec, a leading global networking software company. During his tenure at Tekelec, Mr. de Lange successfully led the sale of Tekelec to Siris Capital and ultimately the strategic acquisition by Oracle in March 2013. Prior to joining Tekelec, he worked at Lucent Technologies/AT&T for 24 years and served in numerous executive positions, including as Vice President of VoIP Convergence Solutions. Mr. de Lange has also served as a board member of ATIS – the Alliance for Telecommunications Solutions. Mr. de Lange also served as a member of the DePaul University School of Computer Science, Telecommunications, and Information Systems (CTI) Leadership Council. Mr. de Lange holds a MS in Computer Science from DePaul University and a BS in Electronics Engineering Technology from DeVry Institute of Technology.


Michael G. Hluchyj

Michael G. Hluchyj has served as a Director since August 2015. From December 2012 through January 2015, Mr. Hluchyj served as Chief Technology Officer, Carrier Products of Akamai, a leading content delivery network services provider, with responsibilities that included carrier service provider initiatives related to Network Functions Virtualization (NFV) and its specification. Mr. Hluchyj joined Akamai through the acquisition of Verivue, a leading provider of content delivery solutions to service providers, where he was a founder and Chief Technology Officer from November 2006 through December 2012. Prior to founding Verivue, Mr. Hluchyj was a founder and Chief Technology Officer of Sonus Networks, a leading global provider of voice over IP (VoIP) infrastructure solutions to carriers. Mr. Hluchyj is a Fellow of the IEEE, has been awarded 36 U.S. patents, and is widely published on subjects such as switching and traffic management in multimedia packet networks. Mr. Hluchyj holds a B.S. in electrical engineering from the University of Massachusetts at Amherst and an M.S. and a Ph.D. in electrical engineering from the Massachusetts Institute of Technology.