About S3

S3 is a full service compliance and trade analytics software company providing simple and elegant solutions to address client needs for regulatory reporting, trade surveillance, and best execution analytics, across multiple asset classes. S3’s robust product suite is used today by many of the world’s largest financial institutions, broker-dealers, exchanges, bulge bracket and retail banks, offering exceptional trading analytics technology, and all-in-one regulatory reporting solutions for U.S. and International financial markets.

Mark Davies

Mark Davies

Chief Executive Officer

Mark Davies is Co-Founder and CEO of S3, a fullservice compliance and trade analytics software. He is responsible for the organization’s business strategy, the executive team and has oversight of the company’s day-to-day operations, including client relations, sales, and business development.

A financial services executive with over 15 years experience in fintech and regtech, Mr. Davies has deep industry knowledge in trading technology, particularly trade surveillance, best execution analysis, and regulatory reporting. Currently, Mark is leading the industry on market structure and regulatory reporting requirements for the Securities and Exchange Commission’s (SEC) Rule 606 under Reg NMS and is sought after for his subject matter expertise.

Mr. Davies co-founded S3 in 2001. In 2004, S3 launched its first trading analytics product, redefining S3’s core business. Since then, under Mr. Davies guidance, S3 has improved trust in the industry through appropriate and intelligent disclosure via regulatory reporting and analytics.

Mr. Davies holds a Bachelor’s of Science degree in Computer Science from the Massachusetts Institute of Technology (MIT). He lives in Austin, Texas with his wife and three children.

John Standerfer

John Standerfer

Chief Technology Officer

A highly accomplished software executive possessing more than a decade of experience in the finance industry, John oversees the technical development of products and provides product direction for the company.

Prior to S3, John led the development of advanced web based trading tools for Charles Schwab’s Active Trader division. These tools provided web based traders with access to streaming quotes, trades, charts and news. In addition to being used by millions of traders, they were also the focus on multiple national advertising campaigns.

As an expert observer of the financial markets, John has spoken at the Federal Reserve and provided opinions for some of the world’s largest financial services firms as well as Reuters, Bloomberg, USA Today, Fox Business News and others. His opinion pieces on financial and media issues have been featured on heavily-trafficked web sites like the Huffington Post.

Tobin Griser

Tobin Griser

Executive Vice President of Client Services

As Executive Vice President of Client Services, Tobin manages the client relationship, maintaining and improving the customer experience and coordinating client requests.  He positions S3 for ongoing success by reinforcing both pillars of its offerings – innovative trade monitoring software and unmatched client services.  Tobin has been an invaluable member of the S3 team for six years and has been a driving force behind the expansion of its services as well as the Company’s growth.

Tobin has over 20 years of experience in the financial services industry, and has focused on Brokerage Operations, Compliance, and Risk Management throughout his illustrious career.  Prior to S3, Tobin served as a Risk Manager at The Charles Schwab Corporation’s Active Trader Division for Equities and Options.  He has a Bachelor of Arts degree in Business Economics from the University of Texas at Austin.

Rob Olkiewicz

Rob Olkiewicz

Vice President of Client Integration

As Vice President of Client Integration, Rob supports the customer onboarding process, ensuring that S3’s tools are implemented and tailored to the exact specifications of new clients from the outset of engagement.  During his eight-year tenure with S3, Rob has played a major role in the growth of the Company’s client base and in enhancing its software architecture.  He understands the importance of customizing S3’s services in support of every client’s market structure analysis needs, and is focused specifically on the onboarding process to ensure smooth deployment of the Company’s tools for all new customers.

Rob has over 20 years of experience in client services and information technology roles, serving in various senior level Quality Engineering, Development, and Management positions.  Prior to joining S3 in 2008, he served as Senior Quality Engineer at Dell Inc., where he managed teams to optimize and stress test Computer Telephony Integration (CTI) environments.  Previously, Rob worked for MCI Inc. in multiple functional areas over a 15-year tenure, and attended Briar Cliff University.

Jeremy Vest

Jeremy Vest

Vice President of Sales

As Vice President of Client Services, Jeremy works directly with customers to understand their specific needs and to implement specialized solutions to support.  He works with the Software team to provide customers with the exact reporting capabilities that best suit their businesses.

Jeremy previously worked for S3 as a Senior Business Analyst and Product Owner from 2006-2011, during which time he worked directly with existing and prospective customers to identify, define, and implement new software solutions.  He also worked for two years at The Hewlett-Packard Company, where he held the position of B2B Online Store Product Manager.  Jeremy graduated with a Bachelor of Arts in Mathematics from the University of Texas at Austin.

Josh Barry

Josh Barry

Chief Software Architect

Josh is responsible for making sure all the different systems work together in a cohesive manner and charting the path to bring new software/features into production.

He has 15 plus years experience designing, developing and maintaining high performance real-time systems handling market data and order and trade data

Before joining S3 in 2006, Josh led the team responsible for real-time account, order and trade data at Charles Schwab. He has a Bachelor of Science degree in Computer Science from the University of Texas at Dallas.