Sitecore Architect/Developer,
Sep, 2020 - Present
Supporting/Upgrading from Sitecore 7.2 to 9.3, using Helix patterns and principals and TDS. Migrated custom MVC forms to Sitecore Experience Forms, including numerous custom Submit Actions.
Personalization + Integration = Exponential Digital Transformation Strategies and Capabilities
Proven contributor, director, leader & manager of practices, products, programs, solutions, teams & technologies.
Experienced Software and Solutions Architect of digital transformation solutions across many industries.
Community Evangelist, Developer Advocate and International Presenter with over 134 technical presentations delivered: SUGCON Europe 2017, Sitecore Symposium 2016, Microsoft TechEd 2008, VSLive! Dallas, VSLive! Austin and hundreds of user groups and developer conferences.
Sitecore Architect/Developer,
Sep, 2020 - Present
Supporting/Upgrading from Sitecore 7.2 to 9.3, using Helix patterns and principals and TDS. Migrated custom MVC forms to Sitecore Experience Forms, including numerous custom Submit Actions.
Chairman/Director of TulsaTechFest.com and TechFests.com,
Jun, 2006 - Present
Organize, host and mentor others to provide annual technical training conferences by professionals in the community for the community.
Tulsa, OK started in 2006 and this location has averaged 50-70+ speakers and 500-1000+ attendees every year. NWA (NorthWest Arkansas) in 2010. Many other cities have done their own as well - Houston (started in 2007), Dallas (started in 2008), Indy, Vancouver, Alberta, Indy, Philly, and Washington-DC. http://techfests.com
Sitecore Architect,
Dec, 2019 - Sep, 20209 months
Sitecore / Sitecore Commerce 9.2/9.3 Architect/Consultant
Expert Advisor,
Jul, 2019 - Dec, 20195 months
Expert Advisor, Consultant, Sitecore Developer - Sitecore 9.1, Sitecore JSS, Angular, React, MVC, WebAPI, Integration of Sitecore Identity Server with Cerner for authentication and FHIR for authorization/access to medical records.
Senior Software Engineer,
Jan, 2019 - Jun, 20195 months
Full Azure DevOps automation and Azure deployment for very large Sitecore Commerce 9.0.3 project, as well as Sitecore and Azure DevOps assistance on multiple projects
Principal Solution Architect,
Oct, 2017 - Jan, 20191 year 3 months
Senior Sitecore Architect,
Feb, 2017 - Sep, 20177 months
Delivering exciting digital solutions for customers with Sitecore
Associate Director - Digital Services,
Nov, 2015 - Jan, 20171 year 2 months
Enabling Digital Services division in the delivery of Sitecore, SharePoint and Microsoft solutions to customers
Sitecore Practice Director,
Mar, 2015 - Oct, 20157 months
• Led Agile delivery of Sitecore solutions for customers using Continuous Integration & Delivery.
• Managed professional and technical development of 35+ staff in the Sitecore and .NET Practice
• Proactive assistance with all presales needs, RFP responses and Scope of Work preparation
Established and maintained:
• Enterprise standards for complete .NET and Sitecore Development best practices
• Repository for KPI metrics to be measured for all projects across all practices
• Generic audit framework for all practices and .NET and Sitecore specialties
Sitecore Architect in the Digital Cloud Practice,
Apr, 2014 - Mar, 201511 months
• Delivered multiple Agile Sitecore solutions for customers using Continuous Integration & Delivery.
• Quickly completed numerous projects on time and on budget
• Created satisfied, long-term, repeat customers from those that were previously dissatisfied.
• Converted custom Flash based Google maps to ASP.NET, jQuery & Google Maps JavaScript v3 library with custom map pin rotation, clustering and IE8 compatible SVG image processing.
• Established enterprise standards for complete Sitecore Development best practices
• Co-Architect/Sr Developer on very large eCommerce site redesign for a multisite multilingual company with 1,400,000+ microsites across 4 countries initially and current sales record $6,000,000+ in one day and growing. Built using Sitecore 7.2 MVC, (ASP.NET, MVC 4, Sql Server 2012), Lucene Search Index and Insite Commerce.
Public Web Architect,
Jan, 2013 - Apr, 20141 year 3 months
Defined Web architectures and designs for the enterprise. Subject matter expert for public web content management and delivery.
Provided leadership, support and development to user community in the evaluation, testing, development and integration of Sitecore public web projects involving all strategic computer hardware/software projects. Documented development processes and operating environment and provides leadership for development team. Liaison with senior management in Communications, HR and IT.
Kept abreast of the latest trends and technology related software and IT industry best practices. Identified and suggested ways to improve the efficiency and effectiveness of the department.
Led Sitecore development team. Developed enhancements and fixes on the Sitecore CMS platform. Supported the Sitecore development team in global development projects. Supported corporate level end users. Supported users in filling business system requirements for all major business areas in regards to Sitecore. Assisted in the development of application project budget definitions. Made decisions daily to impact issues that affect supporting Sitecore CMS. Prioritized issues and determines impact of application issue on business environment. Supported outsourced development resources of Sitecore projects.
Coached and mentored more junior technical and development staff. Participated in design and code reviews. Served as a mentor to other application development and support resources.
Senior Application Development Manager,
Jun, 2009 - Jan, 20133 years 7 months
With a mix of advanced technology and strategic business acumen, I will implement broad and deep technology knowledge and the ability to architect solutions by mapping common customer business problems to reusable end-to-end technology solutions. I will demonstrate the ability to engage in senior level technology decision maker discussions related to agility, business value, and end to end information technology security, help customer account teams identify, pursue and close strategic business development opportunities, maintain product group relationships and act as subject matter expert and show my proven experience managing projects through the entire project lifecycle. This includes managing multi-phase/multi-dimensional/multi-resource projects to conclusion while maintaining high customer satisfaction.
Technical Specialist in the Microsoft Practice Area,
Mar, 2008 - May, 20091 year 2 months
Senior/Lead developer and consultant delivering multiple simultaneous projects across varying software development environments as well as, client assessment, scope of work, project estimates, candidate interviews, code reviews, technical architecture, initiating and finalizing software development best practices and actual development with a very high end companies developing various high profile and/or high traffic web sites utilizing multiple content management systems.. Primarily focused on enterprise and web content management systems, such as Sitecore CMS (ASP.NET 3.5 based Web CMS) and SharePoint 2007.
• Jumped on multiple projects while effectively and quickly making end clients happy with delivered project milestones.
• Delivered very large, high traffic Sitecore 6.0 website for LexisNexus translated into over 30 languages, including a custom Sitecore Pipeline for Language Fallback (Default language).
• Delivered several complex Sitecore 5.3 multi-site components for 1105 Media: forums, news, and event management
• Provided development assistance on Sitecore’s JetStream Demo application.
• Single developer resource on very large automated document management system from document scanning to automated SharePoint 2007 site provisioning for each patient for large regional hospital.
Manager of Software Development and Technical Architecture,
Mar, 2007 - Mar, 20081 year
Broad range of responsibilities from management of software development of over 15+ full time and contract developers and database administrators delivering multiple simultaneous projects, software development environment, hosting facility management, candidate interviews, code reviews, technical architecture, initiating and finalizing Microsoft partnership and actual development with a very high end interactive multimedia company that develops high profile and high traffic web sites utilizing multiple enterprise content management systems.
Architected and managed complete client solutions from initial needs assessment interview, scope of work, contract and proposal creation and delivery, as well as, the full software development life cycle of multiple $100K-1.5M projects: www.fanu.com - collegiate sports social networking site in 3-4 months utilizing Microsoft Office SharePoint Server (MOSS) and smaller sites utilizing Windows SharePoint Services 2007 (WSS), www.coxhelpcenter.com.
Assistant VP Speakers Bureau,
Jul, 2006 - May, 200710 months
INETA (International .NET Association) is the largest organization that provides excellent speakers, presentations and assistance to .NET User Groups around the world. I am happy to help in any role I can. So, when offered the opportunity to help manage the Speakers Bureau as an Assistant VP I was quick to accept.
Software/System Architect / Application Management,
Apr, 2006 - Mar, 200711 months
Vital member of a global team working in a very versatile and dynamic environment, focusing on system architecture and application management of over 600 applications on 300 servers, utilizing a broad range of technologies: ASP, .NET, Cold Fusion, Java, WebLogic, Oracle 10g PL-SQL, SQL Server TSQL and SharePoint. As a member of this CMMI Level 3 certified organization all assets of the SDLC are held to the most stringent levels of accountability, documentation and maintainability. On 24 x 7 call rotation supporting high volume oil and gas Unix/AIX/Java implementation of GenTran EDI/GISB system.
Senior Software Developer,
Jan, 2006 - Apr, 20063 months
Contract position with a very high end interactive multimedia media company that develops high profile and high traffic web sites (6 of the top 10 per MSN) utilizing ASP.NET C# applications with SQL Server 2000 TSQL Stored Procedures and Triggers. Vastly improved a diversely integrated system utilizing handheld devices transmitting GPS and other data to an ASP.NET 1.1 Web Service and displayed utilizing a previously developed classic ASP application suffering from SQL Server overloaded consumption because of very high traffic was converted to a real time C# Windows Service that generates the sites content using XSLT and Triggers, as a work around solution, until .NET 2.0 and SQL Cache Dependency can be implemented.
Software Developer III,
Jan, 2004 - Dec, 20051 year 11 months
Developed mission critical banking systems using ASP.NET 90% C# and 10% VB.NET, SQL 2000 TSQL and Visual Studio.NET 2003. Replaced BizTalk 2000 and MSMQ with C# Windows Service to schedule jobs and tasks using: Strongly Typed Datasets, Reflection and Remoting, several reusable C# assemblies: schedule and deliver SQL Server Reporting Services reports, post content to any Sharepoint portal and a generic Telnet component to connect proprietary back end systems. SalesForce.com web services integration and internal Oracle CRM. Quickly fixed problematic C# web app that had been struggling for several years and brought it to a stable and usable state.
• Refactored existing code reducing processing time by 400%.
• Saved $10,000+ in BizTalk licensing by architecting/developing a very extensible framework utilized in 24x7 operations.
• Architected/Developed company’s first smart client application, .NET 1.1 web services backend, .NET 2.0 beta front end.
Software Engineer/Consultant,
Apr, 2002 - Jan, 20041 year 9 months
Lead developer in several projects, including: an ASP.NET implementation of a large HIPAA compliant multi-user psychiatric web application helping doctors and patients communicate. A real time VB6 application to process data delivered via email and external web sites. Rewrite of a large Visual FoxPro 6 motor vehicle insurance application to VB6 and Crystal Reports 8.5, there by considerably improving end-user performance and usability. I developed an internal Time Sheet and Project Management System application using ASP.NET and SQL Server 2000. I converted an oil and gas measurement and calculation application from GWBASIC/BASICA to VB.NET.
Software Engineer/Consultant,
Mar, 1998 - Mar, 20024 years
Managed multiple projects for a large variety of clients successfully throughout the full Software Development Life Cycle.
Director of Product Development,
Jul, 2000 - Nov, 20011 year 4 months
Utilize leadership and technical skills overseeing a team of developers in the design, development, maintenance, distribution and customization of several applications distributed and sold directly and through reseller channels as a large suite of Intranet Applications under the trade name KnowledgeGEAR; all applications developed using ASP connecting to Microsoft SQL Server and/or Oracle, Install Shield, completed Help system prototypes using Microsoft HTML Help, WebHELP, and WinHELP systems using RoboOffice. Served on the team in the development of the suite’s install CD GUI using Macromedia Director. Used Macromedia Flash to prototype the integration of advanced user interfaces into the application and developed Visual Basic 6 COM objects for server side deployment and usage in ASP.
Managed full software product suite from concept to shrink wrap and provided initial idea and 90% of 10+ add-ons.
Managed a team of developers and meet the needs of our new and existing customers.
Intranet/Desktop Application Developer/Architect for Bank of Oklahoma,
Mar, 1999 - May, 20001 year 2 months
Lead design, development, and maintenance of large mission critical corporate Intranet Apps with accountability for initiating projects using notepad and publishing with Front Page using ASP and SQL Server 6.5 utilizing many TSQL stored procedures, triggers, and user defined functions, including a Business Days and Business Hours calculation between two date and times taking into account company holidays. I created a VB 6 and Crystal Reports windows app that gave the end user the ability to run their own reports with their own criteria at their convenience. I created a Visual C++ ActiveX tree control for use in web apps.
Consultant: Intranet/Desktop/Database Application Developer/Architect for Texaco,
Mar, 1998 - Mar, 19991 year
Designed, developed and maintained large mission critical Internet, Intranet, and Extranet applications using notepad, MS Front Page, Visual InterDev, and HAHT with MS Access 95-97, Oracle 7.2, and MS SQL Server 6.5. This included: corporate records management, knowledge management, web portal, employee directory, group scheduling, messaging, online-conferencing, forms, and knowledge base. I created, maintained and administered several Oracle 7.2 PL-SQL stored procedures and triggers. I developed a dynamic online report server using Access Snapshot control, Visual Basic, ASP, and SQL Server 6.5 stored procedures. I created over 50 reports using Crystal Reports, VB and ASP. Member of the team that developed a multi-tier distributed VB6 windows application.
• Identified potential problems and opportunities that reduced operating cost while enhancing profits.
• This application was able to save Texaco millions of dollars in land rights litigation by finding appropriate land records
Application/Internet Developer and Webmaster,
Nov, 1996 - Mar, 19981 year 4 months
Design/development team of several distributed multi-tier windows applications to achieve scheduling requirements of the U.S. Air Force, using VB 3-5, Delphi 2-3, ASP, and Oracle 7.1 PL-SQL stored procedures.Developed several Internet, Intranet, and Extranet applications using Access 95-97, Oracle, and MS SQL Server TSQL including: employee handbook, phone directory, document repository, group scheduling, messaging, online-conferencing, forums, knowledge base, application release notification, and bug tracking.I created over 50 reports using Crystal Reports. I was involved in the production of documentation utilizing RoboHelp. After proving to company president the benefits, migrated multiple applications to the web for fast delivery and efficiency.Delivered a full suite of applications ranging from VB6, Crystal Reports to Delphi and then moved 90% to the web. Went from team member to team lead/architect; assumed responsibilities for web servers, public and intranet web site.
Computer Programmer, Dial-up Networking Administrator,
Nov, 1995 - Nov, 19961 year
Developed several multi-user applications with Microsoft Access v2 and v7 using Visual Basic for Applications and SQL.
• Architected improvement of processing algorithm which increased efficiency and reduced processing time by over 90%.
Microsoft Office/LAN/WAN Help Desk,
Oct, 1995 - Jan, 19963 months
Served on a three-member team answering technical migration questions in a call-center environment. I designed websites using HTML, CGI and Perl. Was a Key Temporary Personel Contractor.
Medical Billing and Server Admin,
Sep, 1991 - Oct, 19954 years 1 month
Performed medical billing including skip tracing, insurance claims processing, CPT coding, Medicaid/Medicare billing, workers’ compensation, etc. as well as computer support tasks. QNX and HP system backup and nightly jobs.
, Business Management Bachelor of Science Degree , Penn Foster
Dec, 2017 - Dec, 2018
Management Information Systems, General, Almost Associates, Tulsa Community College
Dec, 1991 - Dec, 2005
21249 - Supervisory Management
24138 - Business Law
Computer Math,, Diploma, East Central High School - Tulsa, Oklahoma
Dec, 1986 - Dec, 1991
Advanced Microcomputer Technologies, Certification, Tulsa Technology formerly Tulsa Vo-Tech
Dec, 1990 - Dec, 1991
2018 - Sitecore Technology MVP , Sitecore
Awarded on: Jan 31, 2018
2015 - Sitecore Technology MVP , Sitecore
Awarded on: Jan 31, 2015
2011 - SQL Azure SME (Subject Matter Expert) Champion - Microsoft All-In-One Code Framework , Microsoft
Awarded on: Sep 30, 2011
2011 - Windows Azure SME (Subject Matter Expert) Champion - Microsoft All-In-One Code Framework , Microsoft
Awarded on: Sep 30, 2011
2009 - Microsoft MVP Visual Developer - ASP/ASP.NET , Microsoft
Awarded on: Jul 31, 2009
2008 - Microsoft MVP Visual Developer - ASP/ASP.NET , Microsoft
Awarded on: Jul 31, 2008
2007 - Microsoft MVP Visual Developer - ASP/ASP.NET , Microsoft
Awarded on: Jul 31, 2007
Chairman/Director/Founder, TechFests
Jun, 2006 - Present
Organize, host and mentor others to provide annual technical training conferences by professionals in the community for the community.
Tulsa, OK started in 2006 and this location has averaged 50-70+ speakers and 500-1000+ attendees every year. NWA (NorthWest Arkansas) in 2010. Many other cities have done their own as well - Houston (started in 2007), Dallas (started in 2008), Indy, Vancouver and Alberta. http://techfests.com
Chairman/Director/Founder, TulsaTechFest
Jun, 2006 - Present
Organize, host regions largest free technical training conferences in Tulsa, OK http://tulsatechfest.com
VP Speakers Bureau, INETA North America
Jun, 2007 - Jun, 2009
INETA (International .NET Association) is the largest organization that provides excellent speakers, presentations and assistance to .NET User Groups around the world. I am happy to help in any role I can. So, when elected as the VP Speakers Bureau I was very grateful for the opportunity. During my tenure we added a whole new level to the Speakers Bureau, which due to popularity and growth became the only speaker offering that still exists today as the INETA Community Speakers Program.
Assistant VP Speakers Bureau, INETA North America
Jul, 2006 - May, 2007
INETA (International .NET Association) is the largest organization that provides excellent speakers, presentations and assistance to .NET User Groups around the world. I am happy to help in any role I can. So, when offered the opportunity to help manage the Speakers Bureau as an Assistant VP I was quick to accept.
T-SQL in One Hour a Day, Sams Teach Yourself, Sams Publishing
Published on: Oct 30, 2015
My first time being a Technical Editor.(not Author) even though LinkedIn forces me to list myself as Author.
David is an outstanding technical leader and coworker. Clients were pleased with his work, and he has been a thoughtful and inspiring mentor to his fellow employees. I would be happy to recommend David for any advanced technical role. He has the qualifications and aptitude for anything sent his way!
David is a seasoned team lead, solutions architect and SiteCore subject matter expert who has strong client facing skills and delivery expertise. David is industrious, reliable and solid team member and was a pleasure to work with. I highly recommend David as a SiteCore expert and digital experience lead for large, commercial projects. It would be a pleasure to work with David again in the future.
I personally want to recommend David Walker for employment. I worked with him at Microsoft where we both worked as part of the Premier Developer Practice. I had the further pleasure of working with David on the Architecture Track for Tulsa TechFest where I delivered multiple sessions to a packed auditorium.
David is one of the best Developer Consultants I have ever met. He is skilled at explaining, great at managing his time and well organized. He is persistent without being annoying, and above all he gets results!
David didn't let all those certifications and accolades go to his head. He was always happy to let the rest of us in on his secrets and lend a hand to coworkers out when needed. He is truly a team player who helps conquer the opportunities ahead.
It was always a pleasure to have David Walker as a part of the team. He is a friendly, high-energy individual with a great sense of humor.
Any company should be happy to have David Walker on board!
David provided excellent feedback, suggestions, and advice to our team as our Microsoft ADM, while we were working through some difficult and highly technical problems. David exuded professionalism and expertise, while ensuring to keep our processes moving forward in the right direction. He was a joy to work with, and helped us deliver our project in a manner that exceeded expectations.
I spoke at several of the conferences that David have put together in Tulsa (TechFest, CodeCamp, SchoolOfDev...) and have also had a blast. He always put together great events, from the logistics to the speakers line up and content. On top of that, there's a also the fact that David is a great speaker himself. I'd always go to David whenever I need help with putting together events targeting the software developer community. He's a great guy to work with!
David is a true professional. He has the admiration, and respect of the entire development community in Tulsa. He is not only an extremely talented software developer, he is also a very talented speaker, and organizer. His tireless efforts to support people, groups, and companies in the development community are unmatched. Above all that, he is just a genuinely good person. Everyone in our industry can look to David as a role model, and mentor.
There is a valid and valuable reason why David is one of the few people in this part of the U.S. to consult regarding ANYTHING related to application development. His technical knowledge, while it may seem massive, is shadowed by his personal approach to business. I have had the honor of working with David on a couple of occasions, and am proud to state it.
David was an integral part of our team and brought the expertise and tenacity necessary to deliver the solution on time.
Kudos to David for putting on the largest Technical Conference in the surrounding areas history for 3 years now. I've attended every TechFest since 2006 and they keep getting bigger in scope and better in content. Between TulsaTechFest, CodeCamp, and heading the TulsaDevelopers and TulsaSQL group, he's done more for the Tulsa coder's scene than anyone before. He fully deserves his MVP status and continues to be the role model for Tulsa developer talent.
Dave is one of the unique, talented, giving volunteers who keep our dotNet community growing and propsering.