Five9 Blog

Jonathan Rosenberg is the Chief Technology Officer and head of AI at Five9. Jonathan has dedicated his career to transforming the telecommunications industry and joins Five9 from Cisco where he was CTO for the Collaboration Technology Group (CTG). Jonathan is also well known for his authorship of the SIP protocol, which is the foundation for modern IP-based telecommunications. Prior to Cisco, Rosenberg was the Chief Technology Strategist at Skype, where he guided the company’s technology strategy.

Julian Tiongson specializes in product marketing with emphasis on product messaging, positioning, and go-to market initiatives. He is a well-rounded marketer starting his early career from wide range of social media marketing, email marketing, content marketing, and has since transitioned into product marketing in the later stages. This has brought a unique position to his product marketing style with deeper understanding of the full customer life cycle.

Blair Pleasant is President & Principal Analyst of COMMfusion LLC and a co-founder of ucstrategies.com, an industry resource on the growing UC arena. She provides consulting and market research analysis on voice/data convergence markets, applications, and technologies, aimed at helping end-user and vendor clients both strategically and tactically. Prior to COMMfusion, Ms. Pleasant was Director of Communications Analysis for The PELORUS Group, a market research and consulting firm, and President of Lower Falls Consulting.

Julian Tiongson specializes in product marketing with emphasis on product messaging, positioning, and go-to market initiatives. He is a well-rounded marketer starting his early career from wide range of social media marketing, email marketing, content marketing, and has since transitioned into product marketing in the later stages. This has brought a unique position to his product marketing style with deeper understanding of the full customer life cycle.