Leadership and responsibility -
Management Team

Radi Abd El Haj

CEO and Executive Director

Radi joined RS2 in 1997 as a Project Manager. He was promoted to Customer Relationship Manager in 2002 and Head of Sales and Implementation in 2004. Radi specializes in the areas of issuing, acquiring, clearing and settlement, e-commerce, and accounting. The Group and clients benefit from his international experience, global network, and experience with the technical and product development units. Radi was appointed Chief Executive Officer in January 2012.


Ulrike Schäffter

Group Chief Product Officer

Ulrike joined RS2 in 1996 with a Master’s Degree in Economics and Business-Related Computing. She is Chief Product Officer at RS2 Group. Ulrike is leading the implementation of new business-driven products through agile product focus teams, ensuring system conformity, and implementation towards our partners. Ulrike is also the Managing Director of RS2 Germany and RS2 Financial Services. Furthermore, she is also the resident expert of accounting-related questions regarding the BankWORKS® system.


David Amato

Head of Sales and Client Relationship Management

David has held for the past 15 years various positions in the IT industry. He joined RS2 in 1997 as a Project Manager and in 2001 he was appointed to head RS2’s Project Management teams in Malta and Germany. At RS2, David introduced various project management methodologies within the company and implemented numerous projects across the globe. As of December 2015, David has been entrusted to head the sales and client relationship teams for RS2 Software PLC and RS2 Smart Processing.


Jens Mahlke

Group Chief Financial Officer

Jens has more than 25 years in banking, payments, and financial services. He served as a CFO/COO at Concardis, the leading payment service provider in Germany, and led, as CEO, the European business of EVO Payments, after having built Deutsche Card Services, as General Manager, into one of the leading e-commerce acquirers. Jens started his career at Deutsche Bank, where he held various senior roles in Corporate and Transaction Banking. Jens is a Six Sigma Black Belt, and graduated in Banking and Economics.


Marlene Attard

Chief Administrative Officer and Chief Operating Officer


Marlene moved to RS2 after gaining experience in business administration, human resource management, project management, and change management with one of Malta’s largest public authorities. She served as Director for Corporate Services within the Malta Environment and Planning Authority for the last four years and facilitated the 2010 MEPA reform. She was appointed Chief Operating Officer of RS2 Software PLC in March 2020 in addition to her existing role as Chief Administrative Officer.


Patrick Clarke

Chief Technology Officer


Patrick joined the RS2 team in May 2017 as Chief Technology Officer. Prior to joining RS2 he was CEO and cofounder of OmniPay, which is now a First Data company. Patrick also held the position of Chief Technology Officer, and under his leadership a high-volume real-time transaction management system was built delivering Software as a Service. He is a Certified Information Systems Security Professional (CISSP) and Payment Card Industry Qualified Security Assessor (PCI QSA).


Kolja Reiss

Head of Strategic Business Development North America 

Kolja is an experienced and successful business leader, having established several successful technology businesses in North America and Europe, and currently serves as Head of Strategic Business Development for RS2 North America. He established Mopay as a leading mobile payments provider in the United States before it was sold to Boku, and was responsible for the launch of DIMOCO Americas with overall responsibility for corporate development and global business development.


Stefan Kunz

Legal and Compliance Officer

Stefan has over ten years’ experience working in multinational companies, steering legal and compliance affairs in Europe, the US, and Latin America. He specialized in advocacy and development of LegalTech tools and the law areas of Banking and IT, Data Privacy, M&A and Labor. Called to the bar in 2008 Stefan trained as a practicing lawyer before he went in-house in 2011. Stefan holds a master’s degree in business law. Since November 2020 he supports the Group on Legal, Compliance and Data Protection.