Senior Management

Richard Pierce

Richard Pierce

President & CEO

Dick Pierce is a technology start-up company executive with experience in growing companies from early stage to significant revenue with multiple successful exits. He has direct experience in software, Internet search, enterprise, mobile, networking, infrastructure and semiconductor companies. Pierce comes to Raydiance after most recently serving as CEO of Orbital Data Corporation which offers solutions to speed the delivery of software applications over wide area networks (WANs). Prior to heading up Orbital, Pierce was Executive Vice President and COO of Inktomi Corporation, a search and software infrastructure provider. During Pierce’s tenure, Inktomi’s revenues grew to over $250 million in five years, culminating in a public offering in 1998. Pierce began his career at Intel, where he spent 15 years in a variety of executive roles for microprocessors, microcontrollers and software.

William R. Beyer


William (Bill) Beyer serves as the company’s chief operating officer and chief financial officer. In the latter capacity, he leads the company’s financial initiatives to ensure growth and fiscal stability. Bill brings to Raydiance more than 20 years of blue-chip, professional experience with a deep history in fund raising, mergers and acquisitions, business development and operations. He has served as CFO of multiple emerging technology companies. Mr. Beyer has closed more than $265 million in private equity financings and has conducted commerce in over 20 countries worldwide. Recently, Bill served as CFO and treasurer of Bitfone Corporation driving the company to profitability and to a successful acquisition by Hewlett-Packard. In addition to his tenure with Bitfone, he has served as CFO of Vollee, Inc. and Mahi Networks. Prior to his roles as CFO, he served as Regional Vice President of International Business Development and Finance of Advanced Fibre Communications, Inc. (NASDAQ: AFCI, now TLAB). He joined AFC before the Company’s Initial Public Offering and actively participated in the offering process. Mr. Beyer is a C.P.A., formerly with Arthur Andersen LLP. He holds a Bachelor of Science in Commerce degree in Accounting from Santa Clara University.

Dr. Michael Mielke

Dr. Michael M. Mielke

Chief Scientist

Dr. Michael Mielke is Chief Scientist at Raydiance. He is a globally recognized leader in the field of optics and lasers, with expertise spanning fundamental research, intellectual property, commercial product development, manufacturing, and applications. He joined Raydiance in its infancy and has helped build the company from incubator stage to market leader in precision laser micro-fabrication solutions. Dr. Mielke has been awarded more than 10 U.S. and international patents. He has published more than 20 refereed journal and proceedings articles and has performed more than 40 technical presentations at major optics and interdisciplinary conferences around the world. Dr. Mielke has served in multiple leadership roles within the Optical Society of America (OSA), the International Society for Optics and Photonics (SPIE), the Laser Institute of America (LIA), and the IEEE Photonics Society. Dr. Mielke earned his BS in Physics from the University of Florida and his PhD in Optics from CREOL at the University of Central Florida.

Philippe Brak

Philippe Brak

Senior Vice President, Sales

Philippe Brak comes to Raydiance from GSI Group, where he was vice president and general manager of the laser group. Brak has over 20 years of senior executive experience in the optical and microelectronics manufacturing industries. Prior to his work at GSI, Brak served as President and CEO of NP Photonics. He played an instrumental role in transforming NP Photonics from a technology-driven organization into a customer/market-oriented organization. Under his tenure, the company became cash flow positive. Brak was previously Vice President of Sales and Marketing at Gigabit Optics, an integrated photonics company, where he brought customer focus to the forefront, resulting in over 40 customers and more than 20 design wins.

Earlier in his career, Brak served as Vice President and General Manager of the OEM Business Unit of Spectra-Physics, Inc. During the course of his 16-year tenure there, he excelled in numerous roles, including Director of Sales & Service for North America, OEM Sales Manager Europe, Sales & Service Manager Benelux, and Sales Engineer. Brak brings strong international expertise to Raydiance and is fluent in four languages. He has a proven track record of growing profitable businesses in a wide variety of markets.

Stefan Zschiegner

Stefan Zschiegner

Senior Vice President, Marketing

Stefan Zschiegner joined Raydiance from Nanosolar, a thin-film solar module manufacturer, where he was VP of Marketing and Product Development. Prior to that he served as VP of Global Product Management and Applications at First Solar where he focused on solutions for emerging markets, system and component level product management. From 2001 to 2010, Stefan was employed at FormFactor, a market leader in advanced wafer probe cards, which are used by semiconductor manufacturers to electrically test ICs. There he was the SVP & GM of various Product Business Units, the VP Marketing, the VP Global support and solutions. Prior to Formfactor, Stefan held multiple Marketing, Business and Engineering and management positions at Hewlett-Packard and Agilent Technologies where he spent about 10 years. His education includes that Executive Marketing Management Program, Stanford Graduate School of Business, and he holds a masters equivalent degree in electrical engineering from Technical-University Hamburg-Harburg, Germany.

Tim Booth

Vice President, Solutions Engineering

Tim Booth joined Raydiance in 2004 and brings over 20 years of experience in high tech product development and manufacturing. Since joining Raydiance, Tim has served as Program Manager and Principal Investigator for ultrafast technology development programs and now leads the Applications and Solutions Engineering group. Tim joined Raydiance from ATS Systems where, as Operations Manager, he was responsible for the design and delivery of automated manufacturing equipment for optical, semiconductor, disk drive, medical and biotech applications. Prior to this, he was VP of Engineering at the advanced packaging division of JDS Uniphase. In this role he was responsible for the design and development of products, manufacturing processes, tools and equipment used in the production of photonic components. Tim has a B.S. degree in Aerospace Engineering from the Royal Air Force School of Technical Training and a B.S. degree in Mechanical Engineering from Southampton University (UK).

Tim Flood

Vice President, Engineering

Tim Flood joined Raydiance with 20 years of product development knowledge in software and hardware systems development. Tim has a broad base of experience in high-reliability and fault tolerant applications for information systems, telecommunications technologies such as IP/MPLS/Multi-Service core routing and G/BPON, xDSL broadband, and voice-access products. His technology and management experience includes hardware and software design, product architecture, product line management, and professional services staff. Tim has a proven track record in managing complex engineering projects to successful market introduction and continual development.

Prior to joining Raydiance, Tim held engineering and executive management positions with Tellabs (NASDAQ: TLAB), Advanced Fibre Communications (NASDAQ: AFCI), Red Condor, and Mahi Networks. Most recently, Tim was Vice President of Engineering and Operations at Red Condor. At AFC, Tim held the role of Director of System Software, joining the company during its early product development phase. AFC grew to more than 300 people and a market capitalization of $6 billion. Tim received his Bachelor of Science degree in Electronic & Electrical Engineering from California State University, Chico.

Dr. Steve Sapers

Dr. Steve P. Sapers

Vice President, Operations

Dr. Sapers received a Bachelors of Arts degree in Chemistry from Brandeis University (1984) and a Doctor of Philosophy degree in Physical Chemistry from the University of Colorado, Boulder (1989). As a graduate research assistant he studied multi-photon processes in gas phase polyatomic molecules using laser excitation and detection methods. Subsequent post-doctoral work at the University of Toronto and Battelle Pacific Northwest Laboratories extended these investigations into spectroscopy and molecular dynamics.

Dr. Sapers joined Optical Coating Laboratory (JDSU) in 1992 taking a position managing the R/D analytical laboratory. In this role he developed and deployed advanced tools to study optical thin film coatings in support of both development and manufacturing. Successive leadership roles in engineering and operations management resulted in global division responsibility for multiple high mix and high volume product lines with revenues in excess of $150M per year and over 1400 employees. He supported businesses that ranged from consumer electronics to government programs to critical production supporting the telecom boom. Dr. Sapers left JDSU in 2005, and after a brief tenure with a semiconductor laser company, he joined Raydiance. He is currently the Vice President of Operations, responsible for manufacturing, supply chain, quality and service.

Sri Srinivas

Dr. Sri Srinivas

Vice President, Business Development

In 2009, Dr. Sri Srinivas joined Raydiance from ESI, where he served as Vice President of Worldwide Marketing.  At ESI, he provided strategic insight for existing and new markets, expanded the company’s leadership position, and managed several product divisions.

Prior to his tenure at ESI, Dr. Srinivas spent 15 years at Applied Materials in a variety of leader ship roles, including Chief Marketing Officer in product groups such as Applied’s Etch Products Business Group and Etec System Division. Dr. Srinivas’s strong background in materials science and process engineering enabled him to lead development groups responsible for inventing and deploying new semiconductor capital equipment products.  His groups generated  more than $500M in cumulative revenue.

Dr. Srinivas earned a bachelor’s degree in chemical engineering and a master’s degree in chemistry from the Birla Institute of Technology and Science in India. In addition, he holds a Ph.D. in chemical engineering from the University of Texas, Austin.

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