
Nobuo Kita
Chairman,
President and CEO
Nobuo Kita
Chairman,
President and CEO
Nobuo Kita is Chairman of the Board, President, and CEO of SIOS Technology and President and CEO of its parent company, SIOS Technology Group. Nobuo is also founder and member of the board of directors of Mozilla Japan, an affiliate of Mozilla Foundation/Mozilla Corp., the world’s most successful open source software development organization. Nobuo is also on the board of directors of Seasar Foundation, which is the largest open source software developers’ community in Japan. Prior to his current position with SIOS, Nobuo was the CEO of Northern Lights Computer, a pioneer in Linux and system integration services in Japan. Northern Lights merged with Ten Art-ni Corporation which became SIOS Technology. Nobuo holds a Bachelor of Science degree in engineering from Kyoto Institute of Technology.

Masahiro Arai
Chief Operating Officer
Masahiro Arai
Chief Operating Officer
As Chief Operating Officer for SIOS Technology, Inc., Masahiro Arai is responsible for running day-to-day business operations, shaping the company’s strategic plans, and aligning priorities across worldwide sales, marketing, product management and engineering teams. He is a veteran enterprise software executive with a two-decade track record of driving growth and innovation. Most recently, Masahiro served as Chief Executive Officer of BayPOS where he developed and executed software product and support strategies and led a distributed team responsible for product development, quality assurance, software deployment, and customer support. Masahiro currently works in the San Mateo, California office. He holds a Master’s Degree in Electronic Engineering, Robotics from Tokyo Denki University.

Margaret Hoagland
VP
Global Marketing
Margaret Hoagland
VP, Global Marketing
Margaret Hoagland, VP of Marketing, is responsible for leading SIOS Technology Corp.’s global marketing strategy and manages the execution of the full range of corporate, product, and marketing communications, that support the adoption and utilization of SIOS solutions. Margaret brings to her role more than 30 years of marketing experience including 15 years of experience in the high availability space – making her uniquely equipped to successfully develop and implement highly effective marketing solutions that differentiate and demonstrate the inherent value of SIOS products. She has a strong track record of partnering with cross-functional teams to build unity and alignment across the organization.
Margaret earned her Master’s of Science in Communications Management from Simmons College and her Bachelor of Arts degree from Boston College.

Takafumi Noso
VP
Engineering
Takafumi Noso
VP Engineering
Takafumi (Taka) Noso leads the Engineering team for developing High Availability software products. Taka has over 20 years experience in software engineering here at SIOS, including over 10 years experience leading the engineering team for High Availability software. Taka worked in the Tokyo, Japan office and managed several technical teams including Development team, and Professional Service team/Technical Support team. Taka currently works in the Columbia, South Carolina office and heads the Global Engineering team in the Japan and the US offices. Taka holds a Bachelor of Science degree in Informatics from Kansai University.

Cassius Rhue
VP
Customer Experience
Cassius Rhue
VP, Customer Experience
Cassius Rhue leads the Customer Experience team responsible for customer success spanning pre-sales, post-sales and professional services engagements ensuring that the customer experience with SIOS, our products and delivery exceed expectations. With over 19 years of experience here at SIOS and a keen focus on the customer, Cassius’ significant skills, and deep knowledge in software engineering, development, design, and deployment specifically in the HA/DR space are instrumental in addressing customer issues and driving their success with us. He has a Bachelor of Science (BS) degree in Computer Engineering from the University of South Carolina – Columbia, SC.

Rika Marrazzo
Controller
Rika Marrazzo
Controller
Rika Marrazzo joined SIOS in 2006, and has been responsible for the company’s overall accounting operations, as well as for financial reporting, budgeting, forecasting, etc. and has contributed to the major upgrade of the company’s financial system to improve efficiency of accounting operations.
Prior to SIOS, she worked as a staff accountant and later became an accounting manager supporting the US subsidiaries of Fuji Xerox Co. Ltd, which included a US holding company and a supply chain management company.
She holds a master’s degree in international business management form the Thunderbird School of Global Management, and currently works in the San Mateo, California office.

Makoto Sakamoto
Head of People & Culture
Makoto Sakamoto
Head of People & Culture
Makoto Sakamoto is the Head of People and Culture at SIOS Technology Corp. She is responsible for developing a world-class employee experience throughout the entire employee lifecycle by creating exciting career paths, fostering an environment of high-performance, innovation, and passion that will help the amazing members of the SIOS team flourish. She is also responsible for directing our efforts in human resources, recruiting, diversity & inclusion, learning & development, HR compliance, and various cultural initiatives
With over 10 years of HR experience, Makoto combines her passion for fostering a people-centric company culture with delivering business results. Makoto holds a Master’s of Art in Sociology and a graduate certificate in Women’s Studies from Illinois State University and works in the San Mateo, CA office.