Senior Enterprise Software Developer
An experienced Enterprise Software Developer for the past 20+ years as a team member in multiple projects for companies ranging from small start-ups to fortune 500 corporations. Very passionate about software development be it Web Applications, Windows Applications, or SOA solutions. There is no technology new or old that I will not embrace, the goal is always to achieve success for the team.



  • 100%


  • 80%

    Web (Frontend

  • 100%

    Web (Backend)

  • 95%

    (C#, VB.NET, C++)

  • 90%

    (MS SQL, TSQL)

  • 100%

    Service Oriented

  • 100%

    Web Services
    (WCF, Web Api)

  • 100%

    Windows Services
    (C++, C#)

  • 100%

    Scrum Agile,

  • 85%


  • 70%


  • 70%




  • Ryder Systems, Inc.
    Period: 2019 - 2019
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    Sr. API Developer (Contractor)

    • Development of RESTful API and Soap APIs to support current Ryder Enterprise applications.

    • Development of API, Services for Azure Service Fabric.

    • Assisted as Technical Lead for mayor Azure Enterprise Applications while a new Team Lead was hired.

    • Technologies used: Visual Studio 2019, ASP.NET 4.7.1, .NET Core, C#, XML, JSON, Web API, MVC 5, WCF, Oracle 12, Azure DevOps, Azure Service Fabric, Azure CosmoDB.
  • Miami-Dade County (ITD)
    Period: 2018 - 2019
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    Web Applications Programmer (Contractor)

    • Contracted to help with maintenance of existing Web application and development of new ones for use by Miami-Dade County Procurement department.

    • Developed and enhanced SSRS reports to support the Procurement Department.

    • Responsible for analyzing customer requirements, developing unit test, functional testing of the software system as well as developing new applications and services, in the context of a SOA architecture.

    • Technologies used: Visual Studio 2017, ASP.NET 4.7.1, VB.NET, WebForms, JavaScript, jQuery, HTML5, XML, JSON, Web API, Telerik Kendo UI, MVC 5, WCF, Microsoft SQL Server 2014, SSRS, SSIS, TFS.
  • Restaurant Services, Inc.
    Period: 2017 - 2018
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    Software Developer (Contractor)

    • Contracted to help with maintenance of existing Web application and development of new ones for use by corporate employees and franchise members.

    • Tasked with making changes to the Proposal and Freight pages of the Supply.net web application and modifying and creating new OpenXML document templates for word and excel documents generated by the system.

    • Tasked with the creating of the first phase of the Construction Cost Analysis Dashboard website developed using Power BI. This is hosted on the Azure Cloud as a corporate facing website

    • Developed custom Power BI visualizations to be used with the Construction Cost Analysis Dashboard.

    • Responsible for analyzing customer requirements, developing unit test, functional testing of the software system as well as developing new applications and services, in the context of a SOA architecture.

    • Technologies used: Visual Studio 2015/2017, ASP.NET 4.6.2/4.7.1, C#, VB.NET, WebForms, WinForms, Entity Framework 6.0, JavaScript, jQuery, HTML5, XML, JSON, Power BI Desktop, Power BI Embedded, Microsoft Azure, Node.js, TypeScript, Telerik Kendo UI, MVC 5, Web API, WCF, Silverlight 5.0, Knockout, SignalR, OData, Microsoft SQL Server 2014, Microsoft Messaging Queue Server (MSMQ), SharePoint, OpenXML, TFS.
  • M&M Mortgage Services, Inc.
    Period: 2016 - 2017
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    Lead Software Developer

    • Working on the conversion of legacy FoxPro applications to ASP.NET MVC web application and windows applications, in the context of a SOA architecture.

    • Conversion of FoxPro to SQL Database. This project was the initial and primary endeavor for the infrastructure conversion of M&M Mortgage Property Management system originally in FoxPro to Microsoft SQL. This project entailed the creation of the new SQL Database schema including new stored procedures, functions, triggers, etc. The transformation of the FoxPro data was done using SSIS.

    • Manage 3 contract software developer and ensure that projects are delivered in the expected timeline and within budget, using the Agile methodology.

    • Responsible for analyzing customer requirements, developing unit test, functional testing of the software system as well as developing new web applications, windows services, and Web API to support the business needs.

    • Technologies used: Visual Studio 2015, ASP.NET 4.6.2, C#, FoxPro 8, Entity Framework 6.0, JavaScript, XML, JSON, WCF Web API, WPF, jsGrid, Telerik Kendo UI, MVC, Microsoft SQL Server 2014, SSMS, SSIS, TFS 2015/Cloud Version.
  • Beckman Coulter
    Period: 2012 - 2015
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    Senior Software Engineer

    • Brought in to build a desktop application from scratch “automated scheduling tool”. This application was built for the Software validation and verification team where it is used to automate the testing for Beckman coulter’s Hematology Equipment that is then sold to clients. This was coded in C#.

    • Design of “automated scheduling tool” version 2.0. This application is the second generation of the software previously developed to automate the testing for Beckman coulter’s Hematology Equipment that is then sold to clients. This was coded in C# using .NET 4.5 framework.

    • Worked on enhancements to other applications/tools in C#, C++, VB6, VB.NET.

    • Responsible for analyzing customer requirements, developing test designs, automating testing of the software system, developing test procedures for manual execution as well as developing tools in support of testing the software system.

    • Worked with SharePoint for team project management, and documentation repository.

    • Technologies used: Visual Studio 2013, ASP.NET 4.5, C#, Visual Studio Extensibility, Visual Studio 2013 SDK, C++, C++.NET, VB.NET, WCF, WPF, MVC, MVVM, Microsoft SQL Server 2008 R2, TFS 2012, TestComplete 9.2, and Clear Case.
  • Qualified Data Systems
    Period: 2012 - 2012
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    Independent Software Consultant

    • Development and maintenance of web applications developed for clients of QDS. Primary role was to ensure that the web application developed by a third party met all requirements and ensured that it worked as expected and corrected any issues found by the QA team.

    • Responsible in ensuring that the web application met FDA 21 CFR Part 11 and HIPAA compliance requirements.

    • Technologies used: Visual Studio 2010, ASP.NET 4.0, Web API, C#, Developer Express 2012.2, Microsoft SQL Server 2008 R2, and Microsoft Team Foundation Server.
    Period: 2011 - 2012
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    Senior Developer

    • Senior Developer responsible for the development of the Physician Interface to support Med-Tek's CMAP (Comprehensive Muscular Activity Profile) technology including the development of the Web version of the Physician Interface and the online administrative interface.

    • Responsible for TFS customization to support custom agile methodology as needed by the newly formed IT development infrastructure.

    • Responsible in ensuring that code development meets FDA 21 CFR Part 11 and HIPAA compliance requirements.

    • Worked with sharepoint for team project management, and documentation repository integrated with Visual Studio and Team Foundation Server.

    • Technologies used: .NET 4.0, Telerik Controls, DevExpress Controls, Windows Media Player, Microsoft SQL Azure, Azure Cloud, Silverlight 5.0, SQL Server 2008 R2, WIF, WCF, LINQ, XML C#, IIS 7.0, TFS 2010, & Visual Studio 2010.
  • Independent Living Systems, LLC
    Period: 2011 - 2011
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    Senior Web Developer

    • Responsible for the creation of custom ASP.NET control, Enhancement to current company websites, Web Services (WCF), and Windows Services.

    • Created Windows and Web Services that integrated and/or communicated with UPS, FedEx, and Sharepoint via API.

    • Created and integrated custom report on company intranet for consumption by management using SQL Server Reporting Services (SSRS). The integration included webpages that requested either preconfigured or dynamic input parameters to be passed to the custom reports.

    • Created packages to transform patient and insurance information received in flat file format to be imported into SQL tables using SQL Server Integration Services. Also, created windows services to receive these flat files from partner insurance companies and healthcare providers.

    • Worked with sharepoint for team project management, and documentation repository

    • Technologies used; ASP.NET 4.0, JavaScript, WCF, ADO.NET, SQL Server 2008, LINQ, XML, XSLT, Infragistics 2011, C#, SSIS, SSRS, IIS 7.0 & Visual Studio 2010.
  • TrialGraphix / Kroll Ontrack
    Period: 2008 - 2010
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    Senior Web Developer

    • Lead developer in the Ontrack Prepview Web tool. This tool is a trial preparation platform that allows attorneys to collaborate and strategically organize case information. The Transcript Manager enables you to load, review, annotate and share deposition transcripts, manage graphic documents through its Graphic Manager, and manage other documents through its Document Manager that allows customers to upload and keep track of their documents via http or ftp (www.OntrackPrepview.com).

    • Created Web Services and Windows services to retrieve and store data from Google maps, weather information from weather.gov using API calls and transforming the RSS/XML feeds into SQL data.

    • Developed libraries to create, populate, update, delete and backup dynamically created databases using SQL Server Management Objects (SMO).

    • Technologies used; Visual Studio 2005, HTML, XML, CSS, ASP.NET 2.0, C#, JavaScript, ADO.NET, SQL Server 2005, SMO, .Net Framework 2.0 & ActionScript 2.0, Web Services (Web API & SOPA based), Window Services, and Third Party Libraries (PDFTron, iSpring SDK, Google Maps API, jQuery, etc.).
  • Strategic Technologies, Inc
    Period: 2007 - 2008
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    Software Consultant

    • Development of Window and Web solutions utilizing third party Frameworks, development of OpenXML solutions for integration of SQL and Microsoft Office documents.

    • Technologies used; Visual Studio 2005, HTML, XML, ASP.NET, C#, JavaScript, WebGui Framework, NetDirector connectivity, ADO.NET, SQL Server 2005, .Net Framework 2.0/3.0, Web Services (Web API & SOPA based), Window Services, and Microsoft Open XML Format Framework.
  • Alliance Entertainment Corp / Source Interlink
    Period: 2003 - 2007
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    Senior Web Developer

    • Responsible for the all aspects of design, enhancement and, development of theStore24 Internet Commerce Website. This includes development of custom controls, web services, webforms, SQL Stored Procedures, etc.

    • Created a BaseGrid control based on the Datagrid. This is a custom composite control comprised of 2 separate controls housed in a management class. This control is the basis of the entire theStore24 site. Also wrote search control to search per store for Movies, Music, Games and Classical. Recently completed the creation of the Global Search. This new search engine gives the capability to search thru all stores including accessories for the first time. This is a major enhancement to the search capability of the site. Completed the creation of the DCS black box control. This control uses SQL 2005 Stored Procedures to retrieve MDX scripts and then uses ADO calls to retrieve data from the MDX data cubes, and dynamically displays this in the left navigation bar with product counts.

    • Technologies used; ASP.NET 2.0/3.0, JavaScript, ADO.NET, SQL Server 2000/2005, C#, IIS 6.0, Visual Studio 2003/2005, RadControls & Microsoft AJAX Framework.
  • Royal Caribbean International, Inc
    Period: 1997 - 2001
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    Systems Analyst/Developer III

    Intranet/Extranet Team
    • Responsible for the development of moderately complex-to-complex intranet-based systems. Also responsible for the support of highly complex applications, research, and the application of new Intranet/Extranet strategies. Primary Responsibilities where the development and support of the QSDP application (Quality Supplier Development Program), this application is web based with Oracle, SQL Server & JD Edwards back ends. Project Leader of the AMOS third party product, responsible in ensuring the application of roles & responsibilities, creation of test, development and deployment procedures, and scripts with the Q&A team. Also responsible for management of Business-Information, Technology-Vendor relations, and development of strategies to ensure version zero throughout both fleets (RCCL & Celebrity), and the data integrity as it was extracted from JD Edwards, development of small-scale intranet applications, and the research of strategies for the Corporate Extranet.

    Workflow and Decisions Technology Team
    • Lead technologist/strategist in the development and enhancement of the Customer Service Application. This n-tier application is comprised of several technologies such as Visual Basic 6.0, ASP, COM, AS/400 connectivity, MTS, IIS, Crystal Reports, Purify (Rational code testing tool), SQL 7.0, and OLEDB. This application has help Royal Caribbean achieve better customer satisfaction and is helping in identifying problem areas in which the company can focus to resolve and thus improve its customers satisfaction. The Customer Service Application is an n-tier application that is comprised of a Windows client written in visual Basic, that host a Web Control to access Intranet asp pages, and also a third party control to do screen scrapping of AS400 application. Its data is retrieved from AS400 and stored on a SQL Server 7, thru MTS based controls written in c++ and ATL.

    Intranet/Extranet Team
    • Design and Development of n-tier Air/Sea Booking Applications for the Air/Sea Team using COM/DCOM, C++, MFC, third party API's and ATL technologies along with ODBC to connect to the LAN, AS/400 & OS2/DB Databases. Purify from Rational was used to test and ensure product quality and efficiency. This technology was implemented using Visual Studio 6.0 as the development suite. These applications where crucial in the final stages of the Celebrity Conversion to the Royal Caribbean system during their merger. The Air/Sea application was comprised of a Server application (COM Server) and many small Window Clients that used the server to communicate with booking providers such as Worldspan and Amadeus, to make airline reservation, modifications, cancelations and additions. The Server was written in c++ and ATL. Clients where written, using MFC (Visual Studio 6.0).


Miami, Florida 33186

Phone Number: (305) 562-8361

E-Mail: hectorjleslie@msn.com

E-Mail: hectorleslie@gmail.com