del Delphinus Consulting, Inc. - Resumé of Jim Espaillat
Delphinus Logo Delphinus Consulting, Inc.
Jim Espaillat

Professional Experience
Restaurant Client, Wayne, New Jersey - Consultant
Designed and developed a cross-platform mobile inventory system using Xamarin.Forms. Data entry applications were written to operate on both Android and iOS mobile devices using Azure offline sync features, with reporting and analysis functions written as a UWP desktop application. Microsoft SQL Server database was designed as a multi-tenant system on Microsoft Azure, exposed as a REST OData service, with third-party authentication provided by Auth0.
BioReference Labs, Elmwood Park, New Jersey - Consultant
Performed extensive refactoring and maintenance on several business-critical application systems. Applications were written using a variety of tools, notably ASP.NET and both C# and VB.NET, using a Microsoft SQL Server 2012 database.
Designed and wrote a new WebAPI interface for the internal order update subsystem. Performed maintenance on an Angular/WebAPI application to monitor order message traffic to the company’s billing system. Responsible for enhancements which included use of the Confluence REST API to store and retrieve documents, front-end integration with Tableau Server, and use of Ghostscript utilities to convert images to and from PDF.
Responsible for setting up Git/Stash and TeamCity in a new continuous integration server configuration, and automating deployment to QA and Production environments.
PwC/Booz & Co, New York, New York - Consultant (Remote)
Designed and developed a single-page application website for internal use as part of the Fit for Growth product offering, to analyze and optimize proposed corporate restructurings being undertaken by Booz’s own clients. The data-centric application was written using ASP.NET and MVC 5/Razor, against a Microsoft SQL Server 2012 database, and was designed to make heavy use of JavaScript/jQuery and Knockout.js client-side view models to provide a responsive user interface. The application leverages Tableau Server software to provide enhanced data visualizations on the front end, and interfaces with the FICO Xpress optimization engine to provide cost-effective solutions to clients. Entity Framework 5 was used to manage interactions with the database.
Completely redesigned the previous versions of both the application and the database, to effect not only a sizable reduction in the amount of data being processed, but also a resulting significant improvement in performance and reduction in the technical debt attributable to the original design.
ASME, New York, New York - Consultant
Designed and developed a number of internal- and external-facing websites, using ASP.NET and MVC 4, against a Microsoft SQL Server 2008 database. JavaScript, AJAX and jQuery features were used extensively to optimize the user experience.
Redesigned the single sign-on system (including front-end interface, web services, and database schema) used by most of the association’s public websites to improve data quality and allow for more flexible user registration.
OneWorld, Parsippany, New Jersey - Consultant
Responsible for multiple roles as an application developer, data architect, and database administrator.
Created CLD, a platform for delivering pharmaceutical marketing content to health care providers at conventions, collecting provider data, and interfacing with clients’ CRM systems. Written in .NET, the system comprises multiple applications, all of the following which I personally designed and developed:

  • A VB/C#/SQL Compact front end which serves as the engine for dynamically displaying graphic content (both static and Flash images) based on custom configuration files, collecting data from physical card scans, and formatting data for transmission
  • Numerous SQL Server stored procedures used to configure the front end
  • A set of SSIS packages used to import client customer data into the primary SQL Server database
  • A number of C# and VB desktop applications used internally for scheduling and reporting
  • Created DataVault, a CRM-like system for tracking the activities of individual health care providers across multiple clients and conventions. The system uses sophisticated algorithms written in .NET and deployed to SQL Server using SQLCLR, to standardize and match identifying information from various data sources, and hence of varying quality, along several dimensions (names, addresses, degrees, specialties, etc.) simultaneously.
    Served as development DBA supporting all OneWorld database applications. Responsible for designing and maintaining table schemas, and enforcing coding standards for stored procedures. Used PowerDesigner to create and maintain E/R diagrams, and to generate change scripts as needed. Provided performance tuning and debugging support to other developers.
    Unilever/Best Foods, Englewood Cliffs, New Jersey - Consultant
    As technical leader of a team of four developers, designed and developed a commission system to calculate payments to brokers. Application consists of an ASP.NET front end, written in C#, with business logic deployed as Transact-SQL stored procedures in a SQL Server 2005 database. Primarily responsible for overall application design and data modeling, as well as implementing most of the back-end business rules. Implemented numerous reports using SQL Server Reporting Services (SSRS).
    Also responsible for performing maintenance and enhancements on the legacy commission system, written in PowerBuilder 9 and Oracle 7/8.
    NYC HRA, New York, New York - Consultant
    Converted Distributed PowerBuilder components to.NET components deployed on a COM server, and running against an Oracle 9i database. Used Sybase DataWindow.NET to leverage business rules embedded in legacy code.
    SetFocus Master's Program, Parsippany, New Jersey - Developer
    As team leader, designed and developed a multi-tiered IT Recruiter Placement Application, similar to web site, with the capabilities to post jobs, search jobs and query reports. Project included building a Windows based front-end interface for managing the system and database. Created administrative security levels for different users, and wrote stored procedures. Technologies utilized included: C#.NET, SQL Server 2000, Transact-SQL, ADO.NET, ASP.NET, Web Services, COM+ and HTML.
    Developed a Windows n-tiered "Public Library Management System" application and then ported the application to a dynamic ASP.NET Internet/Intranet model utilizing the same secure middle tier data access components. Non-public web pages were secured using Windows integrated and ASP.NET forms security models.
    Used C#.NET and ADO.NET to define and implement secure middle-tier components using both connected and disconnected environment strategies. Components were consumed by web applications and windows applications utilizing SQL Server and stored procedures to perform logical business transactions. Created and deployed XML Web Services using ASP.NET. Consumed Web Services from both Windows forms and ASP.NET web applications.
    Created complex business components in C#.NET using .NET Class Library assemblies while migrating and implementing them in a multi-tier environment suitable for Microsoft Transaction Server (MTS) and COM+ to address application infrastructure issues associated with building scalable enterprise level applications used by many clients.
    Time Inc., New York, New York - Consultant
    Performed enhancements on OMS, a magazine layout and composition system written in PowerBuilder 9, to improve the performance of image rendering and page manipulation routines. Added several reports using Sybase EAServer as an application middle tier.
    Using Java 1.4 and JAXB, enhanced the XML interface between OMS and BOSS, an ad sales tracking system. Instituted new procedures for using PVCS version control.
    Alliance Capital Management, New York, New York - Consultant
    Performed enhancements on APEX, a fixed income trading system, to improve compliance with Sarbanes-Oxley audit and security requirements. Made extensive improvements to the tracking of bond quality ratings and sector classification schemes within the application. Responsible for dozens of minor corrections and enhancements to the system. APEX was written in PowerBuilder 6.5 and converted to PowerBuilder 9, running against Sybase ASE 12.
    Pepsi Bottling Group, Somers, New York - Consultant
    Performed maintenance and enhancements on a vending machine servicing application. Identified numerous errors and performance issues not originally identified in project scope. Also performed enhancements to an inventory system to allow users to define relationships between PBG and Pepsi North America products. Applications were written in PowerBuilder 6.5, running against both Oracle 9i and Sybase ASE 12.
    Footstar, Mahwah, New Jersey - Consultant
    Designed and developed an application to automate distribution and tracking of vendor shipments. Written in PowerBuilder 8 on Windows 98, against an Oracle 8.1 database running on UNIX. Database was converted to Oracle 9i after initial deployment. Batch processes were written in either COBOL or Oracle PL/SQL using SQL Navigator, and executed using UNIX shell scripts.
    Bank of New York, Teaneck, New Jersey - Consultant
    Designed and developed an asset management application to be used to automate purchasing decisions, track orders, and manage inventory. Application was written in PowerBuilder 7 on Windows NT, against a Sybase 11.x database running on UNIX, using a Delphinus-designed custom 3-tier application framework (originally developed for another client), to which client-side support for the Model-View-Controller (MVC) paradigm was added. Application was designed to allow easy conversion to a browser-client interface.
    CIT Group/Newcourt Credit, Parsippany, New Jersey - Consultant
    Designed and implemented a distributed architecture for an existing lease origination application. Initial project assignment involved performing performance and architecture improvements to the original application, written in written in PowerBuilder 6.5 on Windows 95, and deployed against a Sybase 11.x database on UNIX.
    Project evolved into re-designing system to support reuse of existing business logic by both PowerBuilder and HTML/ASP (Web) clients. This was accomplished by developing modular business components and deploying them to a Distributed PowerBuilder (DPB) server. ASP access was provided through custom COM bridge objects, written in PowerBuilder and deployed under MTS.
    Subsequent deployment effort involved the migration of PowerBuilder clients to Version 7.0, and conversion of the server objects to run under a Sybase Enterprise Application Server (EAServer/Jaguar CTS), using a Delphinus-designed, custom 3-tier application framework. New components were written in Java and deployed to EAServer. ASP pages were modified to directly access EAServer via COM. Migration was undertaken as part of a company-wide effort to establish a uniform middle tier to host common business logic across applications.
    Delphinus Consulting, Upper Saddle River, New Jersey - Consultant
    Provide application design and development services to numerous small business clients. Projects not listed elsewhere include:

  • Dynamic Delivery Services, South Kearny, New Jersey

  • Designed and developed an ASP.NET application to monitor EDI transaction logs. Written in C#, against a SQL Server 2000 database.

  • Independent Computer Consultants Association, Morristown, New Jersey

  • Provided ongoing administration of the Northern New Jersey Chapter's public website, Developed Microsoft Access application to maintain membership information and automate the generation of HTML pages for the site. Volunteer position.

  • BrainBench, Chantilly, Virginia

  • Author/developer for an online PowerBuilder 9 skills evaluation exam.

  • DoAll Disk Jockeys, Flanders, New Jersey

  • Designed and developed a disk jockey scheduling and contract management system, written in PowerBuilder 8 on Windows 98 and XP, against a Sybase SQL Anywhere 7 database.

  •, Wurtsboro, New York

  • Designed and developed a web (e-commerce) application to allow consumers to place restaurant orders online. Application is customizable with the intent of re-selling the service to various restaurant clients. Written in Java Server Pages, running on a Tomcat servlet engine against a mySQL database.

  • ReviewNet, Jenkintown, Pennsylvania

  • Paid reviewer for an online PowerBuilder 7 skills evaluation exam.

  • New Horizons, Concord, New Hampshire

  • Provided technical training in advanced PowerBuilder 8 techniques to the NH Department of Health and Human Services.

  • Refund Consultants, Franklin Square, New York

  • Designed and developed an application to analyze water usage bills received from the City of New York. Written in PowerBuilder 7 on Windows 98, the application uses OLE automation of Attachmate Extra! terminal software to download data from the City's CICS billing system. Data is then stored locally in a Sybase SQL Anywhere 7 database, and subjected to various business rules to identify potential billing discrepancies.

  • Professional Software Consortium, Morristown, New Jersey

  • Provided database (Sybase SQL Anywhere 7) and object-oriented application design services for development of a travel expense system written for the Department of Defense.

  • XO Communications, Paramus, New Jersey

  • Developed Microsoft Access application to assist in identifying potential customers based on proximity or hierarchical relationships to existing customers.

  • AT&T Wireless Services, Paramus, New Jersey

  • Developed Microsoft Word scripts to automate personnel review documents.

  • Nextlink Communications, Paramus, New Jersey

  • Developed Microsoft Access application to assist in assigning sales territories.

  • Footstar/Meldisco, Mahwah, New Jersey

  • Designed and implemented SAMS, a size management application to control store allocation and distribution of merchandise on a size basis. Written in PowerBuilder 5 using a mainframe DB2 database system, the application included extensive graphing abilities to enable users to visually identify sales patterns.

    Vitech Systems Group, New York, New York - Senior Programmer/Analyst
    Designed and implemented a commercially successful software product to assist trade unions and public pensions with the administration of member benefits. Written in PowerBuilder, and designed to work using either a Sybase or an Oracle database server, the system is (as of mid-1998) in its third version, with five completed installations and six others in progress.
    Version 1 was originally written using PowerBuilder 4, and featured:

  • Powerful VCR object with user-defined query and browse capabilities.
  • Workflow-based design which leads users through the business process.
  • OLE integration with Microsoft Word for document maintenance and printing.
  • Dynamic, table-driven definition of visual objects, providing greater flexibility across clients.
  • Version 2 was updated to PowerBuilder 5, and featured:

  • Three-tiered architecture, with the business logic separated from the user and database interfaces.
  • Optimization of VCR object to dynamically generate server stored procedures to improve performance.
  • Extensive implementation of application-level and object-level services to improve developer productivity.
  • Version 3 featured:

  • Standardization of database across all clients, using a custom-designed data dictionary to define client-specific data elements.
  • Full replacement of database tier with Sybase (Transact-SQL) and Oracle (PL/SQL) stored procedures.
  • Personally responsible for all aspects of Version 1 system, from application and database design, to development and testing, and finally installation at two clients. Responsibility for subsequent versions gradually shifted to an emphasis on application and database design, with extensive development involving database stored procedures.
    Meldisco, Mahwah, New Jersey - Programmer/Analyst
    Designed and implemented systems for various facets of retail operation. Client/server projects include inventory analysis tools (PowerBuilder/XDB) and foreign store operations (PowerBuilder/WATCOM).
    Mainframe projects on the IBM System 390 included automatic distribution (COBOL 2), demographic store allocations (COBOL 2/DB2/CICS), sales analysis (COBOL 2/DB2/CICS) and reporting (COBOL 2/DB2), and operations support (COBOL 2/DB2).

    Formal Education
    SetFocus, Parsippany, New Jersey
    Master's Program in .NET
    Chubb Institute, Jersey City, New Jersey
    Diploma in Computer Programming
    Arizona State University, Tempe, Arizona
    Graduate program in Zoology
    Cell and Developmental Biology Predoctoral Fellowship
    University of Pennsylvania, Philadelphia, Pennsylvania
    Bachelor of Arts in Biology
    Benjamin Franklin Scholars/General Honors Program Certificate