CEO + Founder | Full Stack Developer

John is an experienced tech startup entrepreneur and full-stack developer.

John is the Founder of Starter Inc., developer of Ignite an open source application platform. Ignite empowers developers to rapidly build, scale, and monetize content-rich mobile and web apps.

John leveraged Ignite as the foundation for Chukles, a B2C Social Humor app. Based on Ignite’s Enterprise-grade technology, Chukles brings gaming, AR, push, and creates a monetization opportunity for humor creators empowered with social media management tools.

Previously John was the founder and CEO of Extentech, developer of Sheetster the first open source spreadsheet server, and ExtenXLS — the worlds’ most powerful Java Spreadsheet SDK.

At Extentech, John served as the lead developer and technical consultant, advising on dozens of mission-critical development projects over the years to companies including Accenture, Toyota, Workday, Infoteria Corporation, the Nielsen Company, IBM and many more.

ExtenXLS to this day remains popular among Global Enterprises including automotive, healthcare, finance, and technology industry leaders.

His passion for clean technology led him to develop Greenalytix — an innovative spreadsheet based green performance platform & ERP reporting tool. John partnered with Clarkson University to prove the viability of the concept.

logo“We contacted Starter to help us with the design and development of an innovative home monitoring medical system. Our early requirements were a bit vague, yet Starter displayed keen insight and was soon able to provide a detailed offering incorporating recommendations for hardware, software, data collection/storage, messaging, and prospective operating costs.

Most impressive was their ability to rapidly adjust to our changing requirements with viable new options and alternatives.

The depth and breadth displayed by Starter was substantial indeed. I would recommend their services for anyone looking to solve complex IT problems.”

–Perry Erdahl | Sr Project Manager | Mayo Clinic Center for Innovation

John created OpenXLS ( — an open source Java Spreadsheet SDK. OpenXLS has a 5 star rating and an active community with tens of thousands of users.
After Extentech was acquired, John served for one year as the CTO of Infoteria America, where he served on the Executive Board, overseeing establishment of the new North American subsidiary.
.John has recognized expertise in tech startups and has been a contributor to Accounting World and has been interviewed and featured in stories on PandoDaily and