We’re a consulting firm working with enterprise customers to implement Big Data solutions.

Our focus is architectures based on MarkLogic, the Enterprise NoSQL database. 


David Cassel

Dave is company owner, a MarkLogic Architect & Developer with 20+ years of software development experience in Defense, Finance, Communications, Software, and Manufacturing industries, including 11 with MarkLogic.


Dawn Cassel

Dawn is company owner and Chief Executive Manager of 4V and focuses on a number of management roles.


Shannon Shiflett

Shannon is a MarkLogic Developer with 20+ years of software development experience in the Publishing industry, including 14 years with MarkLogic. Shannon is in the process of becoming a MarkLogic-certified developer.


Mohan Golagani

Mohan is a MarkLogic Developer with 19 years of software development experience in the Insurance, Manufacturing and Chemical industries, including 8 years with MarkLogic.


David Cole

David is the latest member to join our team of consultants. David holds a Master’s in CS at Villanova and a Bachelor’s in Finance, and has experience in the Finance/Wealth Management industry.


Dave is also the author of the MarkLogic Cookbook series