SUMMARY:

• Accomplished and highly motivated Senior Application Architect and Software Development Manager at Merchant Acquiring Processing Systems (MAPS). Skilled full - stack developer passionate about writing source code complemented with a wide variety of experience and extensive up-to-date technical knowledge for developing software systems efficiently.
• Dynamic leader in charge of high level sizing, designing, developing, implementing, operating, and analyzing for two Invoice and Summary Back-End systems and five online systems including Buy Pass Billing, Maps Front-End, Client, Online Profitability (OLP), and In-House Web applications to support Wholesale Billing, Pricing group, Accounting and 380 Alliance Banks. Fully responsible for processing data volumes of 278 billion transactions to generate $360 million monthly invoices for Alliance banks and $140 million Individual Sale Organization invoices for Chain Banks as well as $80 million of monthly revenue and expense data.

TECHNICAL SKILLS:

Application Development Languages: Java 7,8 and 9, Maven, Gradle, Spring 3.0-4.2 Core, AOP, MVC, Spring Boot, Hibernate 3.0-4.3, AngularJS, Angular2, TypeScript, Angular-CLI, Karma, Node JS, Express JS, AWS (EC2, C3, Lambda, RDS), HTML, XML, EJB, Java Script, JSP, JSTL, Servlets, JSF, Ajax, JSON, iTextSharp, SOAP, REST, JAX-WS, JAX-RS, JERSEY, CSS, LESS, SASS, jcraft, ftpclient, JPA API manager, JXL, iText, Apache POI, Corda PCScript, R-Programming R 3.4.2, Scala, SBT, NPM, Django

BackEnd System Development Languages: C, Java, Korn, Bourne and Bash Shell scripts, C++, PL/SQL, SQLPLUS, Package, Trigger, JDBC, ROracle, OCI, PROC, Python3, Hadoop, Cloudera CDH, Spark

DBMS: Oracle 12c, MySql 5.7, HIVE, SparkSQL, Sqoop, Impala, MongoDB, NoSQL, DB2

Application Server: JBOSS AS 7.1.1, and WildFly 10, Tomcat, Ngnix, NODE, Oracle 10 and 11g Application Server, WebLogic Server, IBM Websphere 7

Platforms: IBM Aix 7.1 (Unix), Red Hat 6.9 (Linux), Ubuntu, Window server, MS-DOS, Window

IDE Tools: Eclipse Oxygen, Webclipse, RStudio, WebStorm, PyCharm, Jdeveloper and Studio, IBM RAD 7

Other Tools: CA Agile Central, CA Clarity (CA PPM), CA Service Desk Manager, TOAD, STUDIO 3T, Fiddler4, Putty, WINSCP, Postman, Dbeaver, NotePad++, SoapUI 5.2.1, Fiddler4, Qualys, TPAM, IBM Security Appscan, SecureAssist, AntiXSS, SCCS, Visio, SharePoint, IBM NDM, Oracle Form and Report, Microsoft Word, Excel, Power Point, MS Project, KATE, Gotomeeting, MSLync Communicator

WORK EXPERIENCE:

Senior AD-AP-Application Architect, Systems Development Manager

Confidential, Islandia, NY

Responsibilities:

• Leader and main contributor to MAPS Hardware Refresh projects, requiring 10,000+ man hours
• Led 5+ on/off shore consultants for upgrading and migrating 150 B/E and 420 Unix shell modules from IBM Aix 5.2 to 7.1 and 23 F/E applications from Oracle Application server to Wildfly in Red Hat 6.9
• Architected the design and integration and provided consultation regarding the implementation of JVM frame work in JBOSS and migration of Oracle data
• Duties involved migrating applications, including designing, coding, testing, executable building, deploying, migrating code and client networks and supporting and
• Coordinated the migration of 460 Oracle tables and data and 60 packages and triggers
• Contributed to building Unix and Linux Disaster Recovery systems and coordinated DR exercises
• Delivered completed project one year earlier than expected due to strong knowledge and experience in J2EE
• Created e-commerce three tier online communication systems allowing for interactive and billing transfer inquiry, pricing addendum, notifications, invoices, trend analyses, compliance reconciliations and reports between systems, Wholesale Billing, Pricing, Accounting Groups and bank clients
• Designed the system implementing use of JVM, Angular JS, JAX-RS and Spring frame work
• Provided users from 380 alliance banks access to real-time billing reports, invoices and expense data
• Included bulk upload, download and transfer of 5,000 reports monthly between user platforms and Web servers
• Allowed for the production of alliance and chain bank invoices, analysis reports and merchant level expense data as well as the transfer to servers and users
• Configured AWS (EC2, C3, Lambda, RDS) to produce reports, extending outreach service to external banks
• Developer of General Ledger Automation (GAMS) application involving all SDLC stages
• Built database normalization, sizing, design, coding and implementation
• Involved in generating and feeding channel expenses, 19 MAPS bills in Portfolio Accounting, and 80 drivers to allocate $10M across 153 P &L’s, using generated invoices to GL to post journal entries
• Led three consultants to build 62 modules and 26 Oracle tables; 7000 man hours contributed
• Applied Spring 4 frame work, Spring Form, Hibernate, Maven, JSP, Java, Servlet, XML and JSON
• Reduced operating timeline by one week, replacing lengthy manual job normally requiring 12 operatives and 6 approvers
• Rebuilt Buy Pass billing Front-End system for reengineering from .NET to AngularJS. o Involved designing, coding and implementation
• Configured Node.js, NPM, AngularJS, Angular2, Karma, Angular-CLI architect, Spring Framework in Red Hat 6.9
• Led development of Contract Audit Maintenance System (CAMS) including sizing, design and development o Established Front End Tool to support contract users for systemic alignment of contractual expense line items to billing elements for distribution channels
• Involved in assigning and maintaining alliances to a Contract Owner Schedule in the audit tool including changing, adding new line items and associating all schedule line items with billing drivers
• Provided audit tool for updating, pending, approving and logging for all actions and generating reports
• Applied AngularJS and Spring 4 frame works, Hibernate, JSP, Java, TypeScript, Apache POI, R-Programming
• Involved in the takeover of the Payment Card Industry Data Security Standard (PCI DSS) compliance validation online system from Panoptic Security
• Duties involved rebuilding application in JBOSS server in FDC domain; converting database from MySQL to IBM DB2; and adding additional functions to Merchant Management Tool to administrate PCI status validation using all of JVM architecture, Hibernate, Spring, Corda and PCScript, R-Programming
• Developed and implemented Voltage encryption technology in invoice billing systems using Java
• Encrypted and decrypted PII and PCI data in Oracle applied in F/E environment with Voltage
• Maintained and enhanced Maps F/E, client, Online Profitability and In-House Web systems; full responsibility for supporting 380 clients in Alliance and Revenue Share Alliance as well as all FDC internal clients
• Created online real-time Back-Out Recovery system using Java, Oracle, scripts, enabling operators to back out failed jobs, revoke jobs and remove files from system and billing data in Oracle, saving one day of resources
• Rebuilt invoice and ISO invoice generation system using Java, Spring, iTextSharp, R-Programming and Apache POI thereby guiding users and generating and transferring invoices simultaneously; saved two days of manual interactive labor
• Created Month-End Job Control system using Java, Servlet and JSF, J2EE which gathers information on arrival and processing status of 1,800 files and emails of Wholesale Billing users to display status online
• Created dash board tool to execute and monitor 13,300 jobs online
• Recreated Data Center Storage System (DSS) data load dash board monitoring system using J2EE, Java, EJB, Servlet, Apache POI, and JSP in IBM Websphere7
• Built file load monitoring system to gather and track file arrival, load status information in the file system and display status of view image and graph on monitoring site

Confidential

Responsibilities:

• Processing information on 3.5M merchants and $279B volume of authorization, back office service, equipment, media, and credit and debit transactions
• Providing solutions to maintain 30,300 service components to produce $366M billing invoices for 380 Alliance banks and $140M ISO invoices for Chain Banks on a monthly basis
• Supplying expense and revenue data to Data Center Storage System and PASO
• Fully responsible for building spawning, pricing and billing structures, supporting user requests, production issues and 13,300 processing jobs per month
• Strong experience processing big data including maintenance over 24 months and purging / retrieving revenue and expense billing data including analyzing and solving billing issues for financial managers of Alliance Banks and Wholesale Billing group
• Configured Hadoop eco-systems and NoSQL DB architectures for purging and retrieving history data in distribution file systems using MongoDB, Hive, Impala, Java and Scala
• Architect of Universal Mapping System to load and process unformatted text data into Oracle DB
• Rebuilt Data History and Partition maintenance system, automatically rolling up, summarizing and purging monthly data in history tables
• Built new data feeding systems using Hadoop, Spark eco-system for processing and analyzing device data from Verifone
• Maintained pricing, invoice and summary data, 460 Oracle tables, 50 packages and 25 triggers in Oracle DB
• Improved system performance by greater than 30% in invoice systems and by 50% in summary systems within the last four years as well as a 20% reduction in Incident Reports every year for last four years
• Developed Tier Service Cost Calculation (TSCC)
• Built tier cost billing structure according to merchant corporation hierarchy
• Generated $5M+ Tier Billing Invoices for Walls Fargo and Confidential, saving three days of labor
• Submitted and developed Pre Invoice System (PIS) using C, Java, Unix shell scripts and Oracle Package o Rebuilt Invoice Summary data to help financial managers validate invoices, saving one day of labor
• As Point of Contact for MAPS, helped manage the relationship between developers and business users
• Mentor and collaborator with on/off-shore consultants in, test/guide, and product development coding
• Fully adopted agile development methodologies and worked on the full-stack of development stages to deliver projects 100% on time and in budget
• Highly skilled in diagnosing and providing solutions to unprecedented problems that require special attention
• Completed for CMM Level 3, FDMS project management, CA PPM and CA agile central developments

AD-AP-Application Architect

Confidential, Islandia, NY

Responsibilities:

• Independently implemented Online Profitability Web (OLP) using J2EE technology
• As team leader, installed Oracle Application server and solely built OLP Web application allowing major bank financial managers analyze credit cards (e.g. Visa, Master, AMX, Discover), business revenue, growth, and loss during a 13-month period at any hierarchy level; built analysis functions and drill down web pages to break down revenue, track expenses, costs, and transactions in Java, HTML, JSP Servlet
• Helped develop B/E to systematically summarize and roll up 13 months of financial history and fee transactions enabling a 100% automated month-end process allowing new month data availability within 10 business days
• Built In-House Web (IHWEB) application: user interface application to assist bank clients protect the integrity of unit cost information from own user base while maintaining in-house expense tables
• Developed B/E in C and Oracle Package to apply cost to calculate service cost systematically
• Completed development of F/E, converted from legacy Oracle Form and Report to 18 enhanced and improved web applications including architect design, Oracle Application server installation, development and implementation
• Converted 14 users’ manual data entry jobs to online capabilities
• Created MAPS Client Web and Pricing Management applications creating functionality for user authorization and security validation in Java, navigation design and built drill-down page for bank clients allowing access to monthly invoices, client notifications, pricing addendum, pricing notifications, manual expense and financial expense reports
• Extensive involvement in user support, production issues, F/E processing and B/E enhancement in C and Unix

Application Developer

Confidential, Islandia, NY

Responsibilities:

• Created Maps Mail email system using java for FDC Mainframes and Unix systems sending 800 reports daily
• Engineered F/E using Oracle Form and Report and created Alliance Maintenance system, Service Cost Management and Manual Expense Update, generating invoices for Alliance banks. Responsible for installing in user PCs and supporting and synthesizing user reports and views
• Built database system, responsible for modeling entity relational (ER) structures, designing relational database, functional dependency, normalization of tables, logical data file structures, data integrity, interactive storage and retrieval of data and upgrading Oracle 9i
• Created Data Summary System (DSS) to roll up expense summary data for 13 months using C and Oracle
• Built Unix scripts to automate Month-End jobs, automating three operator jobs; supported production issues and monitored for accurate batch processing interface file with daily and monthly feed
• Assembled invoice detail and summary reports using C and set system in Unix to transfer to Mainframe and Alliance banks: Chase, Confidential, Confidential and Sun Trust
• Analyzed expense and invoice data for Alliance Bank financial managers
• Involved in Year 2000 (Y2K) efforts related to merchant processing; tested and developed validation and consolidation system, merchant update daily and monthly systems

Application Development Consultant

Confidential, Islandia, NY

Responsibilities:

• Developed Merchant Cost Recalculation (MCR) back-end system from database design to implementation; reprocessed all transaction data from service tables and recalculated expense and revenue service costs, saving two days of month-end reprocessing time
• Coordinated with development team to take over Merchant Acquiring Processing System (MAPS) from Ernst & Young and worked in maintenance and enhancement functions in addition to helping roll out production
• Enhanced Velocity Consolidation System (VCS) and Service Cost Calculation (SCC) systems and improved spawning logic for billing and new auto recovering procedure
• Performed production support for invoice systems and analyzed billing data for Wholesale Billing group
• Designed and created New Merchant Filtering (NMF) system using C and PROC allowing automated choice of new merchants from daily feed interface file
• Saved company $300,000 annually through replacement of manual work