Thomas DiSarlo has over 28 years of experience in application and systems software architecture, development, and technology consulting focused on the financial services industry. He currently serves as Director of Technology Architecture at Paragon Technology Solutions, where he provides expertise in areas such as payments processing, fraud analysis, and transaction authorization. DiSarlo has managed development teams and led the design and implementation of numerous mission-critical software platforms and systems for large banks and financial institutions.

1. Thomas A. DiSarlo
201 Stout Road
Maple Glen, PA 19002
E: tomd.home@verizon.net
P: +1 267 567 5524
Profile
Twenty-eight years of experience in all aspects of application and systems software architecture and
development, the last eighteen years of which have been with, or as consultant to, leading electronic
transaction processing, global VAT tax refunding, payment systems delivery, check processing, fraud
analysis, and image processing corporations.
Currently serve as Director of Technology Architecture and senior software engineer at Paragon
Technology Solutions, a technology consulting, software development, and transaction processing
company focused on the financial services industry.
Expertise and focus includes ATM, POS, debit/credit/prepaid card authorization and management,
merchant acquirer processing, payment and settlement applications, development of high-volume,
payment-relatedtransactionprocessingandauthorization software,anddesign and implementation of
fraud analysis systems. Additional experience includes technology platform evaluation and analysis;
database architecture and modeling; database administration; systems and application architecture,
design, development, and implementation; vendor evaluation, selection, and relations, M&A due
diligence technology assessments (primarily for Silver Lake Partners, LLC), and business and payment
systems analysis and integration.
Managed and motivated a skilled development team in the deployment of several mission-critical
platforms designed to support and generate significant revenue for top 20 U.S. banks and large third-
party processing businesses.
SignificantInternet/Intranet/networkplatformsandrelatedprotocolsexperience. Particularexpertisein
Enterprise and Technology Architecture. Current with EA Enterprise Architect. Current hands-on
experience inMicrosoftC#.NET5.0/WCF/WF/EntityFramework 6/Web Services development and .NET
enterprise designandimplementation,enterprise-wide Java component design and development, IBM

2. Thomas A. DiSarlo - 2 - November, 2015
BPM, ESB, and WebSphere MQ Series enterprise application design, SOAP XML and REST/JSON
messaging, Oracle database and PL/SQL application development, SQL Server / Transact-SQL / SSIS /
SSRS /BI PowerTools,and Visual C++,ASP,COMand ATL Internetapplicationsdevelopment. Significant
experience in consulting on security issues relating to payments processing, banking, transaction
processing, image exchange, data encryption, and the Internet.
Accomplishments
 Co-founder, Enterprise Technology Architect and software engineer for Paragon Technology
Solutions,Inc.,atechnologyconsulting,software development, and transaction processing service
provider specializing in the ATM, POS, VAT refunding, and credit/debit/prepaid/loyalty card
industries. Served for10 months as leaddesigner, developer,developmentmanager,andPayments
system relationship manager for one of Paragon’s key international clients, Global Blue GmbH.
Previously served as lead designer and developer of several software and database platforms for
other Paragon clients such as Fiserv, Maverick Network Solutions, Inxent Corporation, Denarii
Systems, and others. Also provide a variety of technology consulting services to Paragon’s clients
and their downstream customers.
 Architected and was lead developer for custom software for ATM and POS transaction
authorization,prepaidanddebitcardmanagement andauthorization,settlementandACH services,
clientbilling,interactivevoice responseapplications, and several web portals for clients interfaced
to FirstData, ColumbusDataServices,Visa,MasterCard,andother EFT gateways and card schemes.
Designed and implemented the core Authorization Processor for the Fiserv Prepaid Card Services
product.
 Servedasdesignerandleaddeveloperonanenterprise middleware anddatabase repositoryproject
for Wachovia/Wells Fargo. Designed and developed mission-critical, high-volume middleware
solution for an IBMAIX-based messaging-driven system for the requesting, staging, delivery, and
distribution of seventeen million check images daily.
 Servedastechnologyarchitectfora large third-party-processingventure undertaken by First Union
Bank. Was responsible for design and development of numerous high-volume transactional and
delivery solutions. Also was responsible for design and delivery of PC workstation products that

3. Thomas A. DiSarlo - 3 - November, 2015
were central to the success of the third-party check, image, credit card, and lockbox processing
products.
 Intimate knowledge of and first-hand experience with EFT-related message and file formats
including ISO8583, ACH, and XML-based standards. Intimate knowledge of Diebold and NCR ATM
hardware,emulation,messageformatandrun-time environments. Vastexperience in international
transaction processing and currency conversion applications.
 Designed and developed hardware-to-back-end solutions for a major ATM network, including
branch card issuance products,terminal andworkstationproducts,low-level interfacesforPIN pads,
card-embossing equipment, ATMs, POS terminals and check readers.
 Broad and deep experience with database architecture, modeling, and schema implementation in
the Microsoft SQL Server and Oracle domains. Encyclopedic familiarity and currency with the
Microsoft Transact-SQL and Oracle PL/SQL languages and development and execution
environments.
 Specialize in design and development of high-volume transaction processing software, especially
focusedonthe middleware functionalitiesof acquisition,switching,andauthorization.Software and
component design methodology focuses on fault-tolerance, resource conservation, throughput,
scalability, and polymorphic alerting and error reporting facilities.
Experience
1998 Paragon TechnologySolutions,Inc.
to Technology Architectand SeniorSoftware Engineer
Present
Design and develop ATM, POS, debit/credit/prepaid transaction processing, web
service-based middleware, and settlement and accounting systems for Global Blue
GmbH, Fiserv Prepaid Solutions, Inxent Corporation, ePark Systems and Cash
Connection. Primary architectural and development focus in on a wide array of
Microsoft-centric technologies (.NET; MSMQ; WCF; multi-threaded Windows Services
developed in C#, SQL Server and related database tools, etc.) Served as Development
Manager, Payments Relationship Manager, Lead Designer, and Lead Developer on the

4. Thomas A. DiSarlo - 4 - November, 2015
transition of the mission-critical Payments System away from Dataformers, successful
Alipay implementation, and development of the 14.09/14.10 PAY PCI Migration
reengineeringproject,the 15.01 Lithuaniaconversion,andthe 15.03 Malaysia Payments
project.
Sharedarchitectural anddevelopmentresponsibilityforimage retrieval,messaging,and
delivery middleware components of a $160 million enterprise check image archive
system for Wachovia Corporation. Served as lead developer and senior technical
consultant to entire project team. Architect and developer of successful enterprise-
wide XML messaging system. Achieved full production status for every deliverable in
advance of each deadline. Wrote 25% of primary vendor’s (Carreker Check Solutions)
Java applicationsunderseparate contracttoensure timelydelivery of product. Primary
consultantfornewOracle/C#/ASP.NETInternetimage exception-processingapplication.
Developednewtechnical architecture andhigh-volumetransactionprocessing and ATM
fraud analysis environment for Fair Isaac Corporation, a major cross-issuer card-fraud-
analysis corporation. Project leader for all phases of new applications design and
implementation. Served as lead developer for all mission-critical application
components, including sole responsibility for development of SOA objects to provide
extensive mathematical and predictive behavioral analysis tools for advanced
transaction fraud detection system. Developed all Transact-SQL application
components. Providedtrainingandtechnologytransferforcorporate developers. Built
suite of middleware components for use in distributed-database “smart object” rule-
building and object-learning environment where applications “learn” patterns of
fraudulentbehaviorfromdataandsetsof rules generated by objects under the control
of a central transactionserver. Systemcurrentlyhandlesapproximately1.8milliondaily
transactions.
Servedasconsultantto Intracorp,a Cigna-ownedmajorthird-party provider of patient-
and case-managementsoftware to the health insurance industry. Was lead developer
in conversion of approximately 500,000 lines of VAX RDB code to PL/SQL, porting and

5. Thomas A. DiSarlo - 5 - November, 2015
re-architecting the product to run on Oracle 8, reducing code volume by 80% in the
process and performing major code optimization. Supplied mission-critical
developmentandconsultingservices in the successful deployment of Intracorp’s ICMS
product. Supplied Microsoft Transaction Server development and architectural
expertise.
1988 CoreStatesBank / MAC/ EPS / QuestPoint/ First UnionNational Bank
to Last Position:Vice PresidentandTechnologyArchitect
1998 SeniorSystemsOfficer/ProjectManager
Lead Programmer/Analyst
Responsible for design, evaluation, and integration of major technology platforms to
supportthe CoreStatesfamilyof third-partycheck- andremittance-processing services.
Developtechnical designdocumentation,guide business partners and vendors through
the specification and design phases of large projects.
In addition to duties as Technology Architect, managed a client/server development
team in the creation of products to support the CoreStates check- and remittance-
processingbusinesses. Developed image-based customer products for exception item
processing,signature verification, positive pay processing, data capture and reporting,
image-archive-basedinquiryandresearch. Developedandmaintainedthe Desktop Card
Management System, a significant product that provided advanced reporting and
management capabilities to corporate card program managers and account
administrators. Participated in all levels of activity, from database design to overall
projectmanagementresponsibility. Extensive hands-on development work, including
complete implementation of Oracle applications in PL/SQL, creation of dynamic-link
libraries in C++, and creation of second-tier applications servers in n-tier application
environment.

6. Thomas A. DiSarlo - 6 - November, 2015
Managed design and development of a common processing platform designed to
consolidate disparate processing environments of five ATM networks to a single-
architecture environment. Responsibilities included data analysis, hardware and
software environment selection, application architecture and design, and writing of
detailed functional and technical specifications.
Developed the MAC Manager In-Branch and Back Office products designed to support
the implementationof MACIcon Services,apremierself-service bankinginitiative of the
MAC Network. Responsible for all phases of system design and implementation,
including extensive experience developing de novo interfaces to various electronic
banking peripheral devices and telecommunications hardware.
Education
1980 University of the Arts, Philadelphia, PA
Bachelorof Music/Artist’sDiploma
 Degree awarded in music performance and composition.
 Received Artist’s Diploma in Violin Performance.
1981 WestVirginiaUniversity,Morgantown,WV
Master of Music/PerformingFellowship
 Degree awardedinMusicPerformance, Composition, Electronic and Computer
Music.
 Toured extensively as a performing representative of the University
 Several compositionspremieredatWVUduringtenure there asperforming
fellow.
 Won competition to perform as soloist with Pittsburgh Symphony Orchestra,
Michael Tilson-Thomas conducting
Other:
 Holdcurrent US Private PilotLicense andThird-ClassMedical
o Completedall trainingforInstrumentRating
 FluentinFrench, conversational skills inSpanish, German,Italian,Russian.

7. Thomas A. DiSarlo - 7 - November, 2015
 ConcertmasterandSoloistwithVox AmaDeus (www.voxamadeus.org)
 Commercial CDrecordingsasviolinsoloistinthe currentcatalog:
o BeethovenViolinConcerto(2012)
o Vivaldi FourSeasons(2009)