Leadership Team

Chris Grandi is the CEO and Founder of Abacus Group. He has led the company since its inception in 2008, growing it into an award-winning global firm that provides outsourced IT services and a combination of leading-edge private, public and hybrid cloud solutions to over 550 investment management firms.

Chris has extensive experience in the FinTech industry, having previously been the President of Eze Castle Integration. He also co-founded, and later sold, Dynamic Transactions Inc., which developed internet payment software for commercial banks. Early in his career Chris worked for Goldman Sachs. He has a BA from UCLA and an MBA from Harvard Business School.

Jonathan was appointed President of Abacus in February 2022 and is based in New York. He has been with the company since 2014, originally as Chief Financial Officer. He oversees M&A, strategic partnerships, product management & software, marketing & communications, and all administrative and operational functions including human resources, real estate and legal.

Prior to joining Abacus, Jonathan served as Managing Director of Finance at ConvergEx Group, responsible for financial planning, M&A and new product development. Jonathan began his career in a variety of management roles in operations and finance at General Electric and American Express.

Jonathan holds a B.S. in Operations Management from Syracuse University and an M.B.A. from Penn State University.

Paul Ponzeka is the Chief Technology Officer at Abacus Group. Paul was previously Managing Director of Engineering at Abacus, and is responsible for R&D, systems engineering, disaster recovery and networking.

Before joining Abacus in 2012, he was head of engineering for Davidson Kempner Capital Management. Prior to Davidson Kempner, Paul was a senior engineer at Eze Castle Integration, responsible for high-level VMWare and SAN implementations, as well as serving as the company’s senior messaging expert. Paul earned a BS in Operations Management at the University of Scranton and is CISSP-certified.

Mike is an Abacus Founding Member and currently serves as Managing Director of Client Support and Project Management. In his current role, Mike oversees all aspects of Client Support including overall strategy, development and communication.

Previously Mike served as Director of Onsite Client Support and Project Management at Abacus. Previously, Mike worked at Bank of America and BNP Paribas, where he oversaw Client Technical Services for over fifty hedge funds. Mike holds a BA from the University of Florida.

Darrell currently serves as Managing Director of East Coast Sales & Business Development. Previously Darrell served as Director of Remote Client Support at Abacus.

Prior to Abacus, Darrell was Head of US Project Management for Options-IT. Before that, Darrell served as Technical Director for BNP Paribas's Prime Brokerage Division in the Eastern Region. While based in BNP Paribas's New York office, Darrell was responsible for managing the hosted IT platform for all hedge fund clients who were procuring IT services through the BNP Paribas Prime Brokerage group. During his ten years with BNP Paribas and Bank of America Prime Brokerage (acquired by BNP), Darrell was responsible for the implementation and management of all IT functions at over 50 different hedge funds. Darrell holds a BA from the University at Albany and is located in New York.

Brian is an Abacus Founding Member and currently serves as Managing Director of West Coast Sales & Business Development.

Prior to Abacus, Brian was the Technical Director for BNP Paribas's Prime Brokerage Division (western region) where he was responsible for managing the hosted IT platform and all hedge fund clients who were procuring IT services through BNP Paribas Prime Brokerage group. During his seven years with BNP Paribas and Bank of America Prime Brokerage (acquired by BNP), Brian was responsible for the implementation and management of all IT functions at over 50 different hedge funds. Brian holds a BA from Florida Atlantic University and is located in San Francisco.

Chris is an Abacus Founding Member and Managing Director, Product Management & Innovation. Previously Managing Director, Software Services, Chris has been with Abacus since 2009. He oversees the in-house software team that created and continually evolves the abacusPortal and now also leads the company’s product roadmap and innovation initiatives. He is based out of the Abacus office in Charlotte, NC.

Prior to joining Abacus, Chris worked at Round Table Investment Management on systems integration and at BlackRock Solutions as a Product Manager for the Aladdin® enterprise investment platform. Chris also established the Client Integration Group for Citco Fund Services in New York City, where his primary role was to ensure new hedge fund clients experienced a successful transition onto Citco’s Aexeo® platform.

Chris is a CFA Charterholder, and he has a Bachelor of Commerce from the University of Ottawa, Canada.

Adam currently serves as the Managing Director of Human Resources for Abacus and oversees all aspects of HR including Benefits, Employee Relations, Recruitment, Talent, Training & Development.

Before joining Abacus, Adam was VP of HR Service Delivery at JPMorgan Chase where he led HR program and project management initiatives across LATAM. Prior to that he held various HR management roles with Diageo, Colgate-Palmolive and Bear Stearns. Adam holds a B.A. in Communications from the University of Rhode Island and is based in New York.

Tom currently leads the European region, based out of London. Tom is responsible for managing our UK operation and all Abacus European employees. In this role, Tom is focused on strategy, client service, technical development and business development in the European markets.

Prior to Abacus, Tom was the Chief Technology Officer for COMAC Capital (Europe) Ltd (“CCEL”) a multibillion global macro hedge fund. As CTO he led COMAC’s technology strategy, cyber security practices and group business continuity planning. Prior to that he held various technologist roles within Balyasny Asset Management, Glencore and Publicis Groupe. Tom was awarded distinction for MSc studies from the University of Liverpool.

Randy Hyshiver is the General Manager of the ECHO IT services division, acquired by Abacus Group from ECHO Technology Solutions in November 2021. He’s responsible for the daily operations and IT service delivery for ECHO clients under the Abacus umbrella.

Prior to the acquisition, Randy played an important role in ECHO's success as Director of IT Services. Before ECHO, Randy was VP of Infrastructure at Quarrio, Inc., a business analytics startup, and Director of Delivery & Services at Emanio Inc., an EDI and data integration company supporting the supply chain industry. Randy also previously led the e-commerce initiatives at PMI Mortgage Insurance company, was the Founder of a technical IT outsourcing company in the Bay area and started his IT career providing computer operation support for an educational company. Randy has worked in the IT field for over four decades. He holds a B.S. in Computer Science and Applied Mathematics from the University of New York at Albany and is based in San Francisco.

Dave was previously the Chief Operating Officer and Co-founder of Proactive Technologies, which was acquired by Abacus Group in February 2019. Dave began his technology career in 1999, advancing from intern to Service Desk Manager for a 140-person software company in nine months. From there he held various systems administration positions, including work at the American Stock Exchange. In 2003 Dave took a position managing a small business tech support consulting team in New York City. In three years he grew that practice from four to 40 clients, moving on to form Proactive Technologies in 2007. Dave is also a sought after public speaker on the subjects of business, leadership, technology trends and spirituality. Dave is a graduate of Wheaton College.