DAVE LADELFA
3750 Cazador St.
Los Angeles, CA 90065
(805) 685-9678
dave@ladelfa.net

Professional Profile

Aptitude in rapidly mastering new software and hardware resources. Acute sense for the aesthetics of logical design and an ability to elucidate complex subjects to less-technical audiences. Experience with taking creative initiative under strict guidelines and with executing others designs. Dedicated work ethic and an ability to balance meticulousness with the demands of a deadline. Commitment to producing rock-solid code of the highest security, efficiency, and usability.

Objective

To be part of a development team using best practices, state-of-the-art tools, and collective ingenuity to create useful, reliable, elegant software.

Employment History

Procore Technologies, Inc.
Santa Barbara, CA

2/2002 - present

Lead developer for SitePro, a comprehensive Web-based task management software for residential construction projects (www.pro-core.com), much praised by customers for its performance, stability, logical ease-of-use, and aesthetic elegance.

Defined functional requirements through consultation with management and customers.
Designed user interface, software architecture, and database schema.
Created and maintained complex ASP application hand-coded in object-oriented VB Script with backend procedures in T-SQL and client-side functionality in JavaScript.
Developed and managed updated and customized versions of the application using Ruby on Rails
Employed XML both internally and to communicate with third-party web services.
Created project task scheduling engine as a VB6 COM object.
Integrated client-side Microsoft Project 2003 functionality through extensive application scripting (VBA).
Managed Windows 2003 servers and SQL Server 2000 database, scripting automatic data backups, tests and restores.

Environment:

Ruby on Rails
MySQL, PostgreSQL
AJAX (jQuery, Dojo and other toolkits) / CSS / JavaScript / DHTML
IIS 5 / ASP / VB Script
SQL Server 2000, 2005
CSS / JavaScript / DHTML
Visual Basic 6.0
Microsoft Project 2000, 2003
Subversion source control

Freelance Contract Consultant

7/2001 - 3/2006

Worked on small projects for multiple clients, including commercial and non-profit organizations, and as a subcontractor to other independent developers.

Consulted with clients to define requirements and develop schedules.
Performed all aspects of web and desktop application coding and database design.
Expanded skillset through independent study of ASP.Net, VB.Net, Ruby on Rails.
Created graphics for web pages and print materials.

Environment:

ASP / VB Script, VB 6, PHP, Ruby on Rails
CSS / JavaScript / DHTML
Access 2000, SQL Server 2000, Oracle, MySQL

Alliance Manufacturing Software Intl.
Goleta, California.

11/1999 - 4/2001

Senior Software Engineer, member of the development team for AllianceMRP, material requirements planning software for the manufacturing industry.

Participated in all aspects of design, coding, and maintenance as part of a small development team.
Developed and maintained desktop appplication code using VB 6 with OOP and COM
Led migration of product from Access backend to SQL Server 2000.
Created printed reports with Crystal Reports.
Took the lead in developing ancillary utilities (data import and export) and user controls.

Environment:

Visual Basic 6 / COM
Access / Jet
SQL Server 2000
Crystal Reports
MS Source Safe

Frontier Technology, Inc.
Santa Barbara, California.

9/1998 - 11/1999

Senior programmer for AgPower, a full-featured accounting (ERP) package for the fresh fruit and vegetable industry.

Developed and maintained desktop appplication code using VB 5.
Administered SQL Server 6.5 database; developed and maintatined extensive backend T-SQL code (stored procedures, triggers and views).
Designed and implemented application module to manage Purchase Orders.
Mentored junior programmers.

Environment:

Visual Basic 5
SQL Server 6.5

Electronic Claims Management, Inc.
Santa Barbara, California.

1/1998 - 9/1998

Lead programmer and interface designer for data management software for the medical insurance review and referral industry.

Developed and maintained client-server application code using VB 5 running against Access 98 database backend.
Provided phone and email technical support to customers.

Environment:

Visual Basic 5
Access / Jet

Programmer, ABC-Clio, Inc. (formerly Intellimation, Inc.)
Santa Barbara, California.

4/1995 - 7/1997

Lead developer for PsychWorks, a cross-platform multimedia educational product.

Prepared digital content for CD-ROM publication.
Developed complex multimedia product including games, demonstrations, embedded video, and tests, using object-oriented Lingo within Macromedia Director 5.
Lead HTML programmer for first version of companys Web site (1996).
Managed technical support for catalog of educational software for Macintosh.