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Mobile Proximity Services Made Simple

Dejamobile is a Fintech and software solution provider specialised in Mobile Transaction Services. Our solutions help businesses and organisations to develop interactive and secure mobile services using contactless and proximity technologies (NFC, QR Code and Bluetooth Smart) in the areas of payment, retail and transport.

Our ReadyToTap-Payment solution is a leading solution in the mobile payment European market. Based on HCE and tokenization technologies, dejamobile’s payment solution allows banks and card issuers to offer a mobile service unifying proximity and online payments. This white-label solution, certified by Visa and MasterCard, allows issuers to offer the payment service within their own mobile application. The issuer therefore keeps control over the whole service, from customer experience to security and quality.

Our headquarters and R&D teams are based in France; and we have offices in the UK and Ireland.

Our teams own a large range of skills and expertise: software development, software and hardware security, smartcards, biometrics, contactless and proximity technologies (NFC, Bluetooth Smart, QR Code…), mobile payments (EMV, Visa and MasterCard specifications), agile project management, R&D and innovation…


Dejamobile management team is composed of three specialists in mobile services with an extensive experience and knowledge of NFC technology, mobile services and customer relationship management.

Houssem Assadi

Houssem Assadi is the Chairman and C.E.O. of Dejamobile. Previously, he has been managing for 7 years the “Security and Trusted Transactions” R&D Department at Orange Labs. This laboratory is the global expertise center for the Orange Group in m-payment, contactless technologies, including NFC, as well as in telecoms security. Houssem has been involved in the creation and deployment of the “Payment & Contactless” product line within the Orange Group since 2006. Houssem began his career at Electricité de France R&D contributing to projects related to knowledge engineering. He then joined the French National Library to contribute to the development of the information system, before joining in 2000 France Telecom – Orange Group to participate in projects related to customer relationship management. Houssem is the author of numerous scientific publications and co-inventor of several patents. Houssem is a graduate of ENSTA – ParisTech engineering school and holds a Ph.D. in Computer Science from Paris University.

Bertrand Pladeau

Bertrand Pladeau is the C.O.O. of Dejamobile. Bertrand is a telecommunications engineer, he actively contributes to the development of mobile services since 1998. Bertrand assured consulting assignments before joining Orange in 1998 to set up the security operations of the Mobile Operator IT. He joined in 2003 orange.fr portal teams to manage the “Cinema” and “Stock Exchange” channels of the portal, as well as the CRM tools, then became responsible for several mobile service platforms. Bertrand joined Orange Labs in 2006, to manage the R&D unit in charge of exploring new contactless technologies and developing mobile services based on these technologies for Orange. Bertrand is co-inventor of several patents in the field of mobile services and won the “Mobile Marketing” award at the GS1 France summer school in 2010. Bertrand is a graduate of Paris University and ESIEE engineering school.

Ahmad Saif

Saif Ahmad is the C.T.O. of Dejamobile. He served as project manager at Orange Labs from 2010 to 2012. He led the development and deployment of Cityzi technical architecture in Nice in 2010 on behalf of Orange France. Ahmad actively contributed in various international standardization groups such as Global Platform, the GSMA, the French Association of NFC (AFSCM), the European Association “Payez Mobile” (AEPM). Ahmad began his career at Orange labs as Mobile Service Developer, before working since 2005 on projects related to NFC and mobile services. Ahmad is also co-inventor of numerous patents and contributor to technical specifications in the field of mobile and contactless. Ahmad is a graduate of ENSEEIHT engineering school and holds a Master of Science from the Georgia Institute of Technology (Atlanta, USA).