Jeff Kessler Email & Phone Number

Toronto, On, Ca

Innisfil, On, Canada

• Maintain websites, Infusionsoft, computer hardware and infrastructure, merchant services, and various other software as a service used in the business• Support Operations; hired and managed contractors, research, propose and implement technology solutions

Barrie, Ontario, Canada

• Designed, developed, and maintained numerous program updates for UNIX, Windows, and Android including Point of Sales retail operations applications• Implemented assumed receiving process reducing time to process shipments by 90%• Maintained and updated 30+ year old POS code base

Toronto, Ontario, Canada

• Resolved disputes, de-escalated challenges, provided high quality client service• Promoted to supervisor 3 weeks in; supervised a team of 15+ customer service agents

• One of five developers supporting and enhancing a POS system for the Army & Air Force Exchange Service (AAFES)• Designed, developed, and implemented an enhancement applying business rules to control sales of specific items or groups of items. This allowed AAFES to reduce the volume of over the counter medicines available for sale on the black market in combat zones.• System subject matter expert for all requirements gathering sessions with client• Traveled to the clients head office to receive training on new pin pad software• Identified issues with manual, error prone build process. I approached the project manager who approved my solution for an automated system in line with industry best practice• Ported the business logic from DOS/UNIX/Windows to Linux - utilized my extensive knowledge of all platforms to accomplish the task two days early out of a 14 day time line• Bridged the gap that existed between Quality Assurance and Development teams thereby increasing communications and improving the overall quality of the productLanguages: C, C++, UNIX/Linux Shell Scripting, and PerlPlatforms: Windows XP, UNIX, and LinuxTools: MS Visual Studio, Eclipse, CVS, UltraEdit, UltraCompare, MS Visio, and MS Office

• Designed and developed a debit and credit payment application for Moneris Solutions for use in the United States o Subject matter expert in application design meetings with Moneris Solutions o BASE24 as a message format o Gratuity support for restaurant customers• Provided support for various customized debit and credit POS solutions using VeriFone’s application framework Softpay for various banks processors in Canada and United StatesLanguages: C and C++Tools: VeriFone Softpay, Source OffSite, UltraEdit, UltraCompare, and MS OfficeProcessors: Moneris Solutions and Chase PaymentechPIN Encryption: Master Session and Derived Unique Key Per Transaction (DUKPT)

• Designed and developed a generic payment and transaction management application to run on Axalto, Hypercom, Ingenico, KeyCorp, and Lipman terminals. This application includes support for remote configuration though downloading of set-up files. • Our two-person team ported a Smart Card loading application from an Ingenico POS terminal to a Hypercom device as per customer specifications along with enhancements to include Convenience Fee and Building Owner Payment functionality.• Developed a number of Application Protocol Data Units (APDU) for a micro payment application utilizing VeriFone terminals• Upgraded a POS application to include new functionality for Global Payments on KeyCorp terminals. One of the enhancements was support for a new parameter download processLanguages: C and C++Tools: ARM Development Tools, Keil Embedded Development Tools, VeriFone Softpay, CVS, TortoiseCVS, UltraEdit, UltraCompare, and MS OfficeProcessors: Moneris Solutions and Global PaymentsPOS Terminals: Ingenico, Keycorp, NBS, Verifone, and Hypercom

* Influenced application design, project planning, support and management of development team as the Team Lead* Designed, managed, and led development of a new POS application for TD Canada Trust utilizing developers locally and in China* Mentored new employees to increase their skills, knowledge, and productivity* Designed, Developed and supported various payment applications for NBS POS terminals for various banks and processors in Canada and the United States.

I designed, developed, and maintained payment application for Point-of-Sale terminals for TD Canada Trust, Paymentech, iAuthorizer, Vidal, FDMS, and CGI. Highlights include:* Designed and developed multi-language support for applications.* Developed PIN debit applications for Canadian and US use. * Developed applications using Base24, ISO8583, or proprietary messaging formats

Enterprise Software Development, Enterprise Software Solutions

I am updating my skills in electronic transaction processing technologies including electronic presentation of goods and services, online.

College Diploma, Computer Science Technology Co-Op

Sheridan College is a reputable institution known for its quality education, practical focus, industry connections, and innovative.