About Our Team

Leadership Team

Sheridan Chamberssm-linkedin

Sheridan Chambers


Sheridan Chambers has demonstrated expertise in starting, running and growing businesses. With a strong background in solution selling and a vision for cost control and vendor relations, Sheridan’s roles at Denim Group include client consultant and manager of operations, finance and human resources. Read more

Dan Cornell


Dan Cornell


A globally recognized application security expert, Dan Cornell holds over 15 years of experience architecting, developing and securing web-based software systems. As the Chief Technology Officer and a Principal at Denim Group, Ltd., he leads the technology team to help Fortune 500 companies and government organizations integrate security throughout the development process. He is also the original creator of ThreadFix, Denim Group’s industry leading application vulnerability management platform. Read more

John Dicksonsm-linkedinsm-twitter

John Dickson


John Dickson is an internationally recognized security leader, entrepreneur and Principal at Denim Group, Ltd. He has nearly 20 years’ hands-on experience in intrusion detection, network security and application security in the commercial, public and military sectors. As a Denim Group Principal, he helps executives and Chief Security Officers (CSO’s) of Fortune 500 companies, including major financial institutions, launch and expand their critical application security initiatives. Read more


Aaron Copeland

Director of Operations

As Director of Operation at Denim Group, Aaron Copeland brings over a decade of experience managing and leading teams. He manages the company’s project management contracting and technical resourcing, successfully overseeing secure development and application security projects to ensure that client projects are on time and within budget. Prior to joining Denim Group, Aaron served as a surface warfare officer in the U.S. Navy.


Cap Diebel

Manager of Application Security

Cap Diebel is a seasoned application security expert, specializing in application architecture, development, security reviews and security testing engagements. In his role as Manager of Application Security, Cap is involved in Denim Group’s secure development and software security assurance projects. He leads the company’s application security engagement team and also helps administer application security training for clients. He uses his extensive technology consulting experience as the company’s technical leader for application security activities and lead mentor for application security staff.

Greg Leeds

Manager of Software Engineering

Greg Leeds has more than 16 years of experience in software and application development and leads the entire ThreadFix development team. As the Manager of Software Engineering, Greg is involved in all aspects of technical product vision and ensures the software will meet customer needs. He oversees research efforts for ThreadFix enhancements and is responsible for consistency in standards across development cycles. Managing the development implementation cycle, Greg is the point person ensuring timely releases, useful updates and positive user experiences.

Kyle Pippin

Kyle Pippin

Director of Product Management

Kyle Pippin has over 15 years of experience in successfully building and delivering enterprise level software products and projects to customers in need of system application and web application solutions to their business problems. As Director of Product Management for ThreadFix, Kyle is involved in all aspects of product planning, development, and presentation. He is responsible for ensuring ThreadFix meets and exceeds customer needs and expectations by working directly with clients, Project Management, and technical leads to facilitate the greatest possible value to customers.


Matt Snider

Manager of Information Security

Matt Snider brings more than 13 years of direct experience in information security to Denim Group, including six years leading IT audits and compliance reviews for a variety of Federal, State, Healthcare and commercial clients. Matt has also performed extensive work as a hands-on technical security expert for a variety of security projects. In his role as Manager of Information Security, Matt works with clients to understand their security requirements and to design pragmatic solutions. He also leads Denim Group’s information security consulting team on a day-to-day basis, providing guidance on tools, techniques and procedures used to evaluate IT and business risk for Denim Group’s clients. Matt leverages his diverse background in information security to provide Denim Group consulting engagements with the insight required to deliver security value to our clients.

Shelly Haverlah

Director of Product Operations

Shelly Haverlah has more than 16 years in technical project management experience with software and hardware end-to-end lifecycle management for corporate clients in a global endpoint environment. In her role as Director of Product Operations, Shelly oversees all ongoing product development for ThreadFix. She is responsible for making sure ThreadFix meets and exceeds client expectations. Shelly also provides oversight and guidance to her team to guarantee  quality of product code, documentation, milestones, and releases solidifying ThreadFix as the leading application vulnerability management platform.