The Sigma leadership team
Sigma’s executive leadership team possesses more than 100 years of expertise and experience in communications, IT, business process and executive management.
CEO and President, Communications Division
As Chief Executive Officer and President, Simon Muderack oversees Hansen’s Communications Division worldwide. Prior to this, he was the Chief Commercial Officer and Executive Vice-President of Sigma Systems, providing leadership of global sales and marketing for the company.
With extensive experience working with communications service providers across the globe in wireline, wireless, wholesale and cable operations, Simon provided his expertise in running the commercial business for Sigma, He has also played an instrumental role in spearheading the company’s expansion into new markets and industries across the globe.
Before Sigma, Simon was the Founder and CEO of Tribold, acquired by the company in 2013.
Senior Vice President of Engineering
Brian Cappellani is currently Senior Vice-President of Engineering at Sigma Systems where he provides the technical vision, leadership and long-term direction for all aspects of the software development organization. He previously served as the company’s Chief Technology Officer, where he was responsible for Sigma’s architectural and technology vision.
A 21-year telecommunications industry veteran, Brian has extensive experience designing and building large-scale operations and business support systems.
Prior to joining Sigma, Brian worked for Accenture in various roles including senior-level architecture, engineering and development management positions, held both internally and within Accenture’s telecommunications practice, focusing on wireless and satellite technologies.
Brian is a highly sought-after speaker on next-generation OSS and software development.
Vice President of Global Services
Mark Flynn has been leading Sigma’s Global Operations Team for the past 5 years. He is testament that Sigma grows from within – he started as a Business Analyst and today, as VP of Global Services, supports the great team of people in professional services, technical support, training, Cloud Operations and IT. He has extensive experience in program delivery, operations and customer management. Prior to Sigma, Mark worked with Toys R Us, and AT&T Canada.
Vice President of Marketing
Stephen has over 15 years of experience in leading marketing teams for enterprise solutions at Amdocs, Iron Mountain, Thunderhead and Kenan Systems. Stephen has particular expertise in product marketing for high-value software and services for telecommunications providers, as well as demand generation processes and leadership.
Country Head & COO, Pune
Santosh serves as Sigma’s Country Head and Chief Operations Officer in Pune, India. A previous Wipro and Ericsson executive, Santosh has over 18 years of extensive experience in the communications OSS/BSS/SDP domains. Santosh has extensive experience working with CSPs in Europe, Middle East, APAC, South Africa and US with leadership roles and experience in presales, sales, heading practices, solutions, delivery and managed services.
General Counsel and Compliance Lead
Jeffrey Haar is a legal and business executive with more than twenty years of experience across multiple industries and disciplines. He has extensive experience in corporate and commercial law, as well as corporate finance and M&A, for both private-sector and public-sector companies. As general counsel at Sigma Systems, he oversees all legal functions, encompassing commercial contracts, corporate governance, intellectual property, litigation, human resources and real estate.
Jeffrey started his legal career in New York and has worked on transactions globally. He previously worked at Postmedia Network, Brookfield Asset Management and Architel Systems Corporation.
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