LEROY RAFFINGTON

Toronto, ON, M*N *A*

adgker@r.postjobfree.com ·https://www.linkedin.com/in/leroy-raffington-bcom-pmp-1687a518/

TECHNICAL LEAD/DEVELOPER

An accomplished Base24 Lead Consultant/Developer with 20+ years of experience in the designing, coding and implementing base24 applications, solutions and utilities on HP Nonstop (Tandem) platform. Provides candid and timely recommendations on opportunities to improve system performance and measurably improve the functionality and efficiency of complex, multi-site operations. Advanced programming skills employed to create highly stable, error free code that complies with all standards and best-practices methodologies. An articulate communicator with fluency in two languages sustains strong, collaborative working relationships with colleagues, staff, clients and third-party vendors.

- Technical Competencies –

PYTHON

JAVASCRIPT

SQL

HTML

TACL

AZURE/TCPIP/DevOps

BASE24/TANDEM UTILTIES

ENCRYTPTION(3DES)

PARAGON TEST SUITES

ITIL

JIRA

JAVA

TAL

CSS

XML

ENSCRIBE

VERSATEST

POS/ATM

CARD PAYMENT

EMV(CHIP

PROFESSIONAL EXPERIENCES

July 2012 – Present

Technical Delivery Lead, US Bank Corp.

Remote Key Load Update

Managed the upgrade of the AKDS (Automated Key Distribution System) to generate and transport enhanced Master Encryption Keys (MEK) between Diebold/NCR ATMs and the Host Attalla security modules.

Manipulated Device Handlers software to execute secure command resulting in the production highly secure and complex Master keys utilized by ATMs.

Advanced transaction processing security between the EPP (Encrypted Pin Pad) at the ATM and the Card Authorization system.

Base24 EMV Migration

Lead designer and developer for the CIRRUS and VISA interfaces.

Collaborated on the finalizing the Requirement specifications.

Authored the acquirer technical design document for the EMV migration of the CIRRUS and VISA interfaces

Engaged in weekly design Base24 EMV migration discussions.

Managed the code and document turnover process to QA.

Designed, coded and produced test resource estimates for the project manager.

Scheduled fact-finding session to better understand project requirements.

Perform extensive testing with the various test tools as part of FISERV card processing and fraud detection

ATM REGE Claims Enhancements

Head development of Diebold Empower Device Handler.

Assisted research team to process a Rege claims filed by an FI when items in U.S. Bancorp Deposit Automation ATM are jammed or retracted to holding bins

Customize the Diebold empower Device Handler code to:

oParse the XML Buffer codes sent from the ATM to determine if the transaction is Rege

oBuilt internal transaction message and add new field to the message.

oDelivered special receipt trailer information and print receipt command to ATM.

oDocumented special error message to error message log.

Produced design and coding estimates, development timelines, test cases, test scripts, high level and detail design technical documents and implementation plans.

Coordinated and administered integration and certification testing.

Conducted technical design document review meeting.

Facilitated weekly project status meeting in absence of project manager.

Expanded TDF HSE Process

BASE24 development team lead.

Produced the technical design document.

Contributed to the combined requirement document as a SME.

Provided Design estimates, coding estimates for base24 development resources.

Organized and led the design document turnover to base24 development lead.

Updated the database file with card file from FISERV

Anti-Skimming Detection (ASD) conversion

Developed code to perform batch updates on 2000+ ATD records by setting the ASD flag to close.

Updated the Device Handler source code to display ATM close message whenever a skimmer device is added to the ATM card reader.

Gaming ATM Network Logos Update

Liaised between the base24 ATM support team and U.S. Bancorp Marketing group on the look, dimensions and colors of the requested logos

Set out timeline delivery and implementation of new network logos such as AMEX, VISA, CIRRUS, Maestro, MasterCard etc.

Chaired conference to finalize stakeholders network logos requirements

Verify that FISERV cards able to process without issues

March 2010 – July 2012

Senior Base24 Nonstop Consultant, Royal Bank of Canada (RBC)

Royal Bank Canada/Moneris Debit Card Contactless

Project lead developer for online debit card contactless (Flash) POS/IDP transactions

Led the customized Base24 SPDH, ROUTER/AUTH and IMNI Source Codes to:

oManaged the Debit Contactless application on Interac debit cards

oFacilitated purchase of small ticket items,

oDecreased pin capture and fraud crimes

oPermit download of specific contactless processing information to POS Terminal

Authored test cases, test script, high level and detail design technical documents and implementation plans

Initiated and executed unit test scripts using Paragon Simulator test tools

Managed integration and certification testing with ACI and other FI as testing partners

Interac Triple DES (3DES) for Shared Cash Dispensed (SCD)

Headed development of Interac IMNSC SCD to facilitate Single and Double length keys encryption for online transactions

Converted the Application Interface Layer for Interac (known as IMNSC for SCD) by performing the following in:

oDeveloped and implemented the necessary security command changes, in-house, between Base24 and the Attalla HSM (Host Security Module) to accommodate the new key lengths and encryption algorithms.

oMigrated KEKs (Key Encryption Keys) to double length, which are used to encrypt PIN Encryption Keys (which are used to encrypt PINs) on the Interac network

oMigrated KMAC (Message Authentication Code Key) to double length.

oAltered the code to be able to process Interac transactions that have been encrypted using both single and double length keys (i.e. have been encrypted using either single DES or Triple DES).

Produced test cases, test script, high level and detail design technical documents and implementation plan.

Coordinated and administered integration and certification testing.

Home Hardware Migration

Directed the technological migration for home hardware online transaction authorization from Wells Fargo to First Data.

Set up new processed, lines and stations in XPNET to handle online transactions

Added new POS transaction routing information the following BASE24 configuration files: ACNF, AST/RTBL, CPF, IDF, HCF and KEYF files

Organized integration, network connectivity and regression testing

Created implementation plan as well as implementation procedures

Generated network firewall routing diagrams

October 2006 – February 2010

Senior Base24 Application Developer, Canadian Imperial Bank of Commerce (CIBC)

ATM and POS Base24 6.0 EMV Migration

Interpolated Base24 ATM authorization, supervised EMV modules for processing EMV and magnetic stripe card transactions

Created ATM and POS development integration test strategy, plan cases and exit plan

Improved processing time by 30% for customer transaction requests and service delivery

Successfully replaced over three million customer Magnetic Stripe cards with CHIP cards

Base24 ATM and POS upgrades

One of two tech leads that provided guidance to quality assurance on test preparations.

Managed the project from initialization to completion

Modified DH modules to display various EMS messages when ATM is low and/or out of cash for a specific currency and denomination

Provided estimates for code development, testing, and quality assurance testing

Produced technical designs, test plans, test cases and production implementation plans and scripts

Re-engineered RT/AUTH to generate a new Base24 response codes for EMV/CHIP

Tandem Operating System and MQ Upgrade

Coordinated software implementation activities between CIBC and HP

Integrated new MQ Library files with existing MQ object codes.

Accounted for all application start-up and shutdown

Wrote implementation and verification plan

Oversaw transition of OS from version H061502 toHh06t19 and system verification

April 2001 – September 2006

Base24 Application Developer, Toronto Dominion BANK (TD)

Accountabilities:

Project manages multiple simultaneous re-engineering, conversion, upgrade and enhancement projects, playing an instrumental role from initial needs assessment, project scoping and workflow mapping, through to programming, testing, roll-out, and post-implementation support.

Translates business needs into detailed functional and technical specifications.

Relied upon to handle programming requirements for high complexity applications, with hands-on involvement in the design, coding, testing, debugging, and documentation.

Serves as a primary point of liaison and problem-solving collaboration between team members, end-users, other system departments and external service providers.

Project Achievements:

Re-engineered the IMN from X.25 to TCP/IP protocol

Migrated Draft Capture(POS Extract) from proprietary custom codes to ACI Vanilla Code

Spearheaded the conversion of voice authorization legacy systems to TCP/IP HISO processing.

Led the upgrade from Visa Access Point (VAP) to Visa Extended Access (VEA).

Designed and implemented INTERAC Marketing statistics and Reconciliation program

Built MENU interface for tandem batch jobs and production implementation script

EDUCATION & CREDENTIALS

US Bank Internal Professional Development Study Courses

Leadership Essentials: Communicating Vision and Creating Leadership Development Plan

ISS - Foundations of Software Security

Protecting Data in Memory

OWASP Top 10 plus 2-Top 10 Most Critical Application Security Risk

Adopting Agile: Transitioning from Waterfall to Agile Framework

Generating Creative and Innovative Ideas

Business Continuity Management

Budgeting

ITIL® 2011 Edition Foundation Pre-certification studies

Project Management Professional, (PMP) - Project Management Institute (PMI)

Project Management Certificate Program - Humber College

Business Communication Studies - Ryerson University

Bachelor of Commerce, Management of Information Systems (MIS) - Concordia University, Montréal, Québec

Contact this candidate