Meet Our Executive Team


Sean Kramer has been a serial entrepreneur since he was a teenager. In 1996 he started a website development company employing more than 40 developers. A year later he was recruited by Bigbook, a Silicon Valley based internet company, where he took on the role of Senior Vice President of Sales and Marketing. Prior to Bigbook being acquired by GTE Super Pages, Sean successfully implemented a sales and marketing plan that included 1200 sales people. In 2003, he founded Element Payment Services, a technology pioneer in integrated payments. As President and CEO, Sean assembled a team of industry experts to help Element become a dominate player in the payments space. Ten years later, Sean’s vision was realized, he accepted an acquisition agreement from Vantiv, Inc. (NYSE: VNTV). The transaction represented the second largest, by a multiple of EBITDA, in the financial payments space.


Shawn Sellnow started his career in telecom in 2000. Since that time, he was steadily promoted from a Warehouse Manager, Project Manager, Tower Division Manager, Director of Business Development to Tower Division President for several industry leaders (American Tower, Tower Systems, Inc. and Total Comm Systems). In 2010, Shawn had the opportunity to become the Chief Operating Officer of Total Comm Systems, where he managed operations for over 60 radio and tower technicians, project managers and office personnel. His team specialized in the in the installation, maintenance and repair of microwave systems. In 2016, Shawn and his team saw an opportunity to broaden their niche and incorporate software development into their portfolio. At that time, he partnered with Sean Kramer and Mike Roseberry and formed Pathwave.


Mike Roseberry found his passion at the young age of 10 years old writing software programs. During his youth, he spent most of his time learning as much as he could about coding and writing software. He attended college at the University of Minnesota Duluth and received a B.S. in Mathematics and computer science. In 2003 he co-founded Element Payment Services, a credit card processing company that specialized in allowing software vendors to easily integrate to their transaction platform to take payments securely. As Chief Development Officer of the company he built a team of over 30 developers, QA analysts and DBAs. Over the 10 year span at the company he helped build from scratch a comprehensive credit card transaction platform that processed over 13 billion dollars a year in transactions with emphasis on security and high availability. Mike and his team also developed the company’s CRM tool, reporting engine, residual compensation system, ticketing system and many other industry cutting edge technologies such as tokenization of credit cards at rest, P2P(point to point) encryption, hosted payments, Tri-POS and a mobile payments solution. Utilizing an agile development methodology Mike and his team were able to iterate new versions of each technology with an ease and efficiency to stay ahead of their competition and continue to innovate effectively. 10 years after Mike and his partners started the company, they sold it to a public company named Vantiv for over 160 million dollars. Mike stayed on with Vantiv for a year and a half as SVP of technology to ensure a smooth transition of the technology and to help integrate the systems as well as help secure a vision for the future of their technology in payments.