For the past 16 years, Denis Cahill has undertaken technical specialist roles within the card payments industry and, affiliated or related technology startups and solution providers. Features of this experience are:- Extensive software design and development experience, specialising in card payment applications for POS (Point of Sale), and mobile devices- Fundamental understanding and knowledge of EMV (Chip & PIN) technology, other card payment technology, payment transaction processing, and card/transaction security- Interest in NFC (Near Field Communication) mobile technology for facilitating secure payments, loyalty schemes, peer-to-peer payments and ticketing- Understanding and knowledge of NFC architecture/infrastructure including current constraints of the Secure Element in terms of preventing non-vendor approved access- Extensive product implementation, testing and support experience- Authoring project plans, test specifications and test plans- End-user product training experience- Product Specialist experience, supporting business team with technical expertise- Consulting experience- Complete software development life cycle experienceSkillset:- software application development using languages - C, Java (J2ME, J2SE, Android)- Current and previous software toolkits include Eclipse, NetBeans, ADT (Android Developer Toolkit), Microsoft Visual Studio, UltraEdit/UEStudio- In depth EMV (a.k.a Chip & PIN) technical knowledge and experience- contact/contactless smartcards- software and system test analyst experience- technical writing, documentation
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Contract Software Developer And ConsultantScorpius Solutions Ltd Feb 2004 - Mar 2018London, United KingdomScorpius Solutions operates in sole trader mode and was founded to facilitate Denis Cahill's contracting and consulting activities in the UK.Consulting and software development specialising in distributable applications for EFTPOS with Chip & PIN (EMV), across a variety of platforms running either native (developed in C) or mobile Java applications.Experience:- Denis Cahill has performed all following UK-based contracting & consulting roles- In addition to experience in the following (UK-based) roles, Denis has also researched the technology, and developed proof-of-concept and pilot mobile applications to demonstrate the capabilities of NFC, as applicable to mobile payments, peer-to-peer (P2P) payments and mobile ticketing and loyalty programs
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Contract Software Application DeveloperEft Solutions Ltd (Uk And Nz) Aug 2015 - Jan 2017London, United Kingdom; Sydney, AustraliaEFTPOS terminal application development and testing:- Software testing, bug fixes and maintenance releases- Technical support and testing/fault replication of live releases- Contactless EMV L2 kernel integration- External pinpad integration work, with addition of new communications messages to support contactless integration- VeriFone Verix family POS terminal application development (namely Vx520/Vx820) -
Contract Software Application DeveloperAbacus Solutions Development Sep 2012 - Mar 2015London, United Kingdom- EFTPOS terminal application (lottery client) development, to interface with the Abacus Gateway- Embedded Linux platform, ExaDigm Nx2200. See http://www.exadigm.com for more details- As advisory member of system design team, consulting on communication message and protocols specification and technologies, including GPRS, WIFI, XML/SOAP, JASON, REST, MQTT- Development of ‘proof of concept’ and demo apps for POS terminal. Technical support for these- Advice and technical support for integrating chip & pin (EMV) payment infrastructure into ePoS and POS terminal interfaces. -
Contract Software Application DeveloperPhoenix Managed Networks Sep 2012 - Mar 2014London, United Kingdom- EFTPOS terminal application/multi-app library development and enhancement (embedded Linux platform - ExaDigm)- Integrating terminal vendor’s certified EMV Level 2 library into vendor’s multi-application framework library- Pre-certification testing of POS multi-app framework with new chip & pin functionality to Phoenix Managed Network's payment gateway -
Contract Technical Implementation ConsultantVisa Europe Sep 2010 - Aug 2011London, United Kingdom- Issuer card authorisations system certification testing, for new and migrated card BIN ranges- Setup and modification of customer requirements, parameters and enabling system services in Visa (credit card) Authorisations, Clearing and Settlement systems- Complete analysis and reporting of EMV standard and VISA/issuer proprietary fields from transaction message logs, and from card internal state data (via Collis EMV Personalization Validation tool suite for example)- Investigation and preparing of report on developments in mobile payment technology, in particular NFC and secure element technology -
Contract Software Application Developer & ConsultantBluewave Payments Mar 2007 - Sep 2010London, United Kingdom- EFTPOS terminal application design and development (using Java)- Visa Global Platform (embedded Java® platform) for EFTPOS terminals – Blue Bamboo (http://www.bluebamboo.com/) H50 terminal- Chip and PIN (EMV) development, testing and certification- Loyalty and gift card terminal application development
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System Test Analyst (Contracted To Visa Europe)Visa Europe Aug 2006 - Feb 2007Basingstoke, Uk- System testing of the Visa Authorisations (VDPS - Switch) platform- Demonstrated thorough knowledge of banking messaging protocols (e.g. ISO8583), VISA card technology including EMV (chip & PIN), and the role of card data fields in the transaction authorisation process
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Contract Software Application Developer & ConsultantSilvergum Solutions Ltd Feb 2004 - Aug 2006London, United KingdomPayment services for small merchants and short hire needs. Their main business focus was taxi cabs, and trade show exhibitors.- EFTPOS terminal application development, and support- C development, Lipman (now Verifone) Nurit device family- Chip and PIN (EMV) integration, testing and certification -
Project Leader/Software EngineerCybernet Australia Pty Ltd Jun 2001 - Sep 2003Sydney, AustraliaSeoul-based CyberNet designed, developed, manufactured and supplied innovative EFTPOS products, peripherals, and software for mcommerce, e-commerce, and smartcard payment systems.Experience:- EFTPOS terminal software development and certification testing - EMV Level 2, ISO8583, APACS 30/70- Running training programs, and supporting customer developer teams in using CyberNet’s SDK for EFTPOS terminals- SDK and tools development; parser, dissembler, compiler (ANTLR, ANT, J2SE)
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Product Specialist/Software EngineerCardsoft Australia 1999 - 2001Sydney, AustraliaProvider of an embedded open platform solution and common IDE for devices with very limited computing power and memory, namely CADs (Card Accepting Devices) – e.g. POS terminals, mobile phones, PDA’s, vending machinesExperience:- Driving and managing the test, certification, implementation and maintenance life cycle phases of an eCommerce Payment Gateway product development- Test tools and host simulator design and development- Software development/porting and testing of chip card and mag stripe card applications for Cardsoft’s new Java-powered embedded platform
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Documentation Consultant/Visual Basic DeveloperSystemik Solutions Jun 1997 - May 1999A documentation design and consulting firm specialising in the publishing of “electronic” documentation and web-based content management. The core focus is a complete publishing solution to suit a client’s requirements, spanning various multimedia and Web-related technologies.My role involved development and installation/integration as well as training and support of customised publishing solutions.
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Acoustical/Environmental ConsultantErm Mitchell Mccotter Pty Ltd Feb 1997 - May 1997An environmental consultancy providing a diverse range of specialist advice and monitoring capabilities in such areas as noise control, traffic management, soil and water quality control and environmental impact studies.As acoustical consultant, I performed environmental impact studies and designing remedial measures on the basis of then current legislation and modelling tools and techniques. -
Noise Control EngineerEnvironment Protection Authority (Nsw) Jul 1995 - Feb 1997Environmental impact studies of traffic, industrial (including mining) and aircraft noise. Noise study data analysis and input to preparation of noise policy legislation.
Denis Cahill Skills
Denis Cahill Education Details
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Applied Physics
Frequently Asked Questions about Denis Cahill
What is Denis Cahill's role at the current company?
Denis Cahill's current role is Owner/consultant, Scorpius Solutions Pty Ltd.
What schools did Denis Cahill attend?
Denis Cahill attended Rmit University.
What are some of Denis Cahill's interests?
Denis Cahill has interest in Mobile And Web Services, Chip And Pin, Swimming, Golf, J2me/android, Professional, Nfc, Trombonist, Cooking, Gardening.
What skills is Denis Cahill known for?
Denis Cahill has skills like Linux, Payments, Architecture, Nfc, Smart Cards, Java, Eclipse, Eclipse Cdt, Ms Project, Iso8583, Apacs, Technical Writing.
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