Doug Estep

Douglas Michael Estep

Email: douglas dot estep at gmail dot com

My Portfolio

Using my side business, I have developed numerous web sites for small businesses. Below are a few of my favorites.

http://www.gwenestep.com

A self-taught, on-location, lifestyle photographer located near Dayton, Ohio with a passion for capturing life's precious moments.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, JSP, HTML, CSS, JavaScript, JQuery, JQuery UI, EL, JSTL, Stripes, Tomcat 7 and/or Resin, MySQL 5.x.

http://www.tricktrucknrod.com

Trick Truck N Rods is a business that specializes in restoring old Chevy and GMC trucks, as well as buying and selling vintage trucks.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, JSP, HTML, CSS, JavaScript, JQuery, JQuery UI, EL, JSTL, Stripes, Tomcat 7 and/or Resin, MySQL 5.x.

http://www.eliteexp.com

Elite Expediting is a full service courier company serving the central Ohio area.

Technologies

Java, JDBC (uses the JADA product I developed), JSP, HTML, CSS, JavaScript, Struts, Tomcat 7 and/or Resin, MySQL 5.x.

http://www.dillhofffinancial.com

Dillhoff Financial is a full service independent financial services firm specializing in Stocks, Bonds, Mutual Funds, Life Insurance Analysis, Debt Management, Spending Plans (Budgeting) Charitable Giving Strategies.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, JSP, HTML, CSS, JavaScript, JQuery, JQuery UI, EL, JSTL, Stripes, Tomcat 7 and/or Resin, MySQL 5.x.

http://www.myquestchurch.com

Simple web site for a local church which allows the church to author their own pages.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, JSP, HTML, CSS, JavaScript, JQuery, JQuery UI, EL, JSTL, Stripes, Tomcat 7 and/or Resin, MySQL 5.x.

Liberty Mutual Insurance

Component Architect & Principal Software Developer
2005 to Present


My role at Liberty Mutual is a Principal Software Developer, which is synonymous to a senior software engineer or an application architect. I architected, designed, and developed the following new products, services, and web applications for Liberty Mutual Insurance. Each product was developed with a high level of quality in mind. I used test driven development (TDD) for these projects, using JUnit to create my test suite. Each of these products was developed solely by myself. They involved database design, including the creation of indexes and enforcement of referential integrity in order to achievement maximum performance results. Each product provides extensive inline/API documentation for ease of reuse and maintainability.

Products I have Developed for Liberty Mutual Insurance

Commercial Lines Worklist

An internal workflow web application servicing all commercial line underwriters within Liberty Mutual. This application streamlines all processes within the commercial line department and provides underwriters the ability to work, route, transfer, and create additional work items. This application is very well received and presents a very nice web 2.0 interface (uses the jQuery Panels plugin described above). Compatible with all major browsers.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, JSP, HTML, CSS, JavaScript, JQuery, JQuery UI, AJAX, EL, JSTL, Stripes, IBM Websphere, IBM DB2 (both mainframe and distributed), IBM MQ Workflow, Websphere Process Server, IBM Content Manager.

Commercial Policy File (CPF)

An account-centric internal web application, servicing all commercial line underwriters within Liberty Mutual. This application provides underwriters the ability to query all files attached to accounts, query and add account notes, view active Workflow work items for an account, as well as many other various informational screens about an account. This application is very well received and presents a very nice web 2.0 interface. Compatible with all major browsers.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, JSP, HTML, CSS, JavaScript, JQuery, JQuery UI, AJAX, EL, JSTL, Stripes, IBM Websphere, IBM DB2 (both mainframe and distributed), IBM MQ Workflow, Websphere Process Server, IBM Content Manager.

Common Model Library

An internal library containing business logic for all of Liberty Mutual's commercial lines applications and services. This project provides a repository for common business logic that can be reused throughout multiple projects and resolved the problem of code duplication and business logic duplication that was plaguing the legacy applications.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, IBM DB2 (both mainframe and distributed), IBM MQ Workflow, Websphere Process Server, IBM Content Manager.

jQuery Panels Widget

jQuery Panels is a user interface jQuery plugin that utilizes the widgets provided by the jQuery UI open source project to present entry points (or windows) into the server data -- similar to portal technology. All interaction with Panels is done so using AJAX technology, backed by the jQuery library. The Panels plugin allows for extensive customization, providing many points in which client applications can plugin in custom functionality and UI behavior specific to their needs. The plugin uses jQuery and CSS style sheets to dress up the panel content with a uniformed look and feel -- allowing the developer of the panel to focus solely on the functionality and less on the UI.

Technologies

jQuery, jQuery UI, CSS 3.0, HTML.

Ohio Casualty Products

Ohio Casualty was acquired by Liberty Mutual in 2007. Prior to the acquisition, I served as a component architect and I architected, designed, and developed the following new products / components.

Products I have Developed for Ohio Casualty

Bond Execution System Technology (BEST)

Insurance Surety Bond customer facing web application which allows insurance agents to search and issue Surety Bonds. BEST is a large scale high performance system, servicing agents within the continental United States and abroad. It achieved an ROI within the first year of use and contributed to a department that was the most profitable department in the company. This project won the President's award for its ease-of-use, agent-feedback, and ROI. Compatible with all major browsers.

Technologies

Java, JDBC (uses the JADA product I developed and the Form Manager web service discussed below), JSP, HTML, CSS, JavaScript, Struts, IBM Websphere, IBM DB2 (both mainframe and distributed), IBM Content Manager, IBM MQ Workflow, Adobe LiveCycle Forms, Adobe Reader Extension Server.

E-Label web service

An internal and reusable print service component which allowed Ohio Casualty personal lines policy administration system to produce online and real time insurance forms populated with the policy information. This service sits on top of the Form Manager service (discussed below).

I presented this technology at the ACORD user conference (2007) in Orlando Florida. It was very well received.

Technologies

Java, Struts, Adobe LiveCycle Forms and Adobe Reader Extension Server.

Form Manager web service

An internal and reusable form service component which allows systems to store, query, populate, and produce their various online forms using Adobe PDF technology.

Technologies

Java, JSP, Struts, DB2, IBM Content Manager, Adobe LiveCycle Forms and Adobe Reader Extension Server.

Java Instructor

In addition to the above, I also was instructor for the following courses held internally at Ohio Casualty.

Beginning Java
Focused on converting legacy developers into Java developers. It covered the Java language as a whole as well as object orientation principles.

Advanced Java
Covered J2EE and web technologies such as HTML, JavaScript, and JSP and java servlets.

Struts
An introductory course focusing on the STRUTS Java framework.

Independent Consulting

Software Architect & Developer
2001 to Present


While working full time, I have maintained a side business writing software for small businesses and individual entrepreneurs. I architected, designed, and developed the following new products for clients (as well as myself).

Products I have Developed for individual entrepreneurs

Carpe Diem

A private social networking and photo sharing web site similar to Facebook and Twitter. Will demo on request. Compatible with all major browsers.

Currently authoring a book about this project and the technology behind its success.

Technologies

Java, Spring JDBC, Spring AOP, Spring IoC, JSP, HTML, CSS, JavaScript, JQuery, JQuery UI, EL, JSTL, Stripes, Tomcat 7 and/or Maven, MySQL 5.x.

Omega Pro

A Java Swing application which managed the pet cemetery business. This suite of applications manages the burials and cremations for pets, the plots, the billing and invoicing, accounts receivable, and a product catalog.

Will demo on request.

Technologies

Java Swing, MySQL 5.x, Jasper Reports.

JADA (Java Abstract Data Access)

A Java-based persistence framework that handles database transactions, allowing the developer to easily separate the low-level persistence code from the business objects. Pre-dated popular ORM's such as Hibernate.

Technologies

Java

Safety Net

A Windows application, written in C#, which allows users to build backup scripts for backing up their file system. The application took advantage of robustness and power of the RoboCopy Windows tool.

Technologies

C# .NET.

jQuery Plugins That I've Developed

I've developed several open source jQuery plugins. These plugins are offered on this site as well as the official jQuery plugin registry site.

http://plugins.jquery.com/pane/ A jQuery UI widget which allows you to present entry points (or windows) into your data that can be served up from a server action or from static HTML (similar to a portlet in portal technology). Backed by jQuery's AJAX libraries, each pane acts independently from other panes -- achieving a clear separation of concerns between user actions.
http://plugins.jquery.com/mod-highlighter/ A jQuery widget that you can use to keep track of input-able values within a container and highlight those columns that have been modified. Allows modified columns to be reset to their original values.
http://plugins.jquery.com/disabler/ A jQuery widget that can completely disable or present a read-only view of the content on your page.

Workflow One

Senior Application Developer II
2001 to 2005 (fka the Relizon Company)


I architected, designed, and developed the following new web application for the Relizon Company.

Products I have Developed for Workflow One

SIMON (Simple Information Management Online)

A web-based content management system designed to manage the content on an Intranet.

Technologies

Active Server Pages (ASP), HTML, CSS, JavaScript, IIS, SQL Server.

Enhanced and supported Relizon's customer facing order management web application. Some of my key accomplishments:

Search Engine.

Redesigned and rewrote the existing search engine within Relizonline. My implementation involved an extensive indexing process that allowed for quick and accurate search results through millions of records, eliminating the latency experienced by the users.


B2B module.

Redesigned and rewrote the existing Business-to-Business module, resulting in no B2B production issues being reported and excellent system performance. Prior to the rewrite, the B2B module was continually failing with timeout issues when large orders were sent during heavy load time. The B2B process takes advantage of the JADA package that I created.


Budgeting Module.

Designed and developed a budgeting module which allowed our customers to create budgets for their users to spend. The module would stop the user from ordering past their budget.


Broadcast Order.

Designed and developed a module which allowed Relizonline users to place an order and ship the order to a group of shipping addresses.


Consulting Services

Software Engineer
1991 - 2001


For the first 10 years of my career I focused on consulting services. I worked for several mid-sized to small software consulting companies. The last company that I worked for was a company that I helped start (Gemini Software Solutions). I developed the following new product for Gemini Software Solutions.

Products I have Developed as a Consultant

TranSend

An Active X control that allowed external Windows applications to call COBOL processors within CINCOM Control Manufacturing (an ERP/MRP package). CINCOM Control Manufacturing was a closed system. This Active X controlled bridged the gap between online web applications and/or Windows applications and CINCOM Control Manufacturing.

Technologies

Visual Basic 6.

ERP / MRP Software

Participated in the development of an ERP / MRP web enabled package for small to medium sized businesses, called Converge. The front-end screens for Converge were written in Active Server Pages for the Internet Explorer browser. The back-end COM objects were written using Visual Basic 6.0. Converge utilizes the SQL Server 7.0 database


Technical Team Lead

Served as a technical team leader for Jireh Consulting and Regent Systems Inc. doing consulting work for numerous projects involving Visual Basic, Powerbuilder, COBOL and MANTIS programming


Powerbuilder Developer

Served as a developer for BASS and participated on the team to develop the BASS MerchaNT system, a client-server application providing a Windows NT compliant GUI interface. MerchaNT is a back office system for in-store management of a grocery store. The interface was designed using PowerBuilder 5 and Microsoft Visual C++. The database was SQL Anywhere and resided on a server and was accessed over a LAN using the PowerBuilder native communications


COBOL and MANTIS Development

Worked as a consultant for RJO Enterprises. I participated in the development of the Defense Integrated Subsistence Management System II (DISMS II) project. Development of the DISMS II project was done using MANTIS, COBOL, and SUPRA


Education

College
Ohio University, Athens, Ohio, 1991
Bachelor of Science, Computer Science
Graduated Cum Laude

High School
West Carrollton High School
West Carrollton, Ohio, 1986

Model View Controller (MVC) Technologies

Model

Java, Spring JDBC, Spring Aspect Oriented Programming (AOP), Spring Inversion of Control (IoC), Enterprise Java Bean (EJB), Java Messaging Service (JMS)

View

JavaServer Pages (JSP), Expression Language (EL), JavaServer Pages Standard Tag Library (JSTL), JavaScript, Twitter Bootstrap, AJAX, JQuery, JQuery UI, Responsive Design, HTML, DHTML, Cascading Style Sheets (CSS)

Controller

Struts, Stripes, Java Servlets, Spring MVC


Extra Technologies

Java Client Side
Java Extras

Java Swing, Java Applets, Jasper Reports

Eclipse IDE, IBM Rational Application Developer (RAD) IDE, Another Neat Tool (ANT), Proficient in Test Driven Development (TDD) using JUnit, Java Swing, Java Applets, Jasper Reports, and Android.

Version Control System
Microsoft Technologies
CVS, IBM Rational ClearCase, IBM Rational Team Concert, StarTeam
.NET Framework, C#, Visual Basic .NET, ASP, Windows Application Development using C#.
Adobe Technologies
Application Servers
Adobe LiveCycle Form Server, Adobe Reader Extension Server, Adobe LiveCycle Designer
IBM Websphere, Apache, Apache Tomcat, Maven, BEA Weblogic.
Databases
Other
DB2, Oracle, MySQL, Microsoft SQL Server , CINCOM SUPRA
IBM Websphere Process Server v7.x, IBM MQ Workflow, IBM Content Manager, IBM Tivoli Access Manager, CA SiteMinder, iText, REST, Object Oriented Programming, XML, Powerbuilder, C++, MANTIS, COBOL, Ubuntu Linux

Military Experience

I joined the Ohio Army National Guard (1987-1993) right out of high school to help pay for college.

I ended my 6 year commitment as a sergeant(E-5) as a heavy equipment mechanic.