The PASS Application Development VG is a developer community with free training and information for developers working with data.

Sign in to Subscribe

About Us

Group Leadership Team

Armando Lacerda - co-Leader


Over 30 years in the computing field as a developer and system integrator; over 20 years working with SQL Server since version 6; cross platform experience with Oracle and IBM SQL/DS and DB2; Microsoft Certified Trainer (MCT) since 1998. Armando is a native of Brasil. In 2001, he moved to the US (now on the West coast). Currently, Armando may be found back and forth in South America doing training and consulting. Armando enjoys surfing, diving, biking and jogging. He is a pastor for a Brazilian Christian ministry in Recife.

Carnegie Johnson - co-Leader


Carnegie Johnson is a Consultant at IAYF Consulting focused on training, designing, and developing modern IT solutions primarily around Microsoft technologies. Carnegie has more than 25 years of experience as a IT professional in diverse roles, such as Software Developer, Project Manager, Technical Instructor and Consultant. He has consulted and trained thousands of software developers and IT professionals worldwide. Carnegie is currently pursuing mastery of Microsoft Azure and cloud solutions.

Sarah Huang - co-Leader


Microsoft Business Intelligence Developer with 8+ years experience in SSIS, SSRS and SSAS. Design and develop SSIS packages to import data from flat files, DB2, Oracle, etc. into data warehouse, build reports with SSRS, maintain ETL package and SSRS, trouble shoot/improve SSIS packages or SSRS reports; Lead Data warehouse migration; manage database performance. Founder and Organizer of Saturday Night SQL virtual group.

Debbie Huang - co-Leader


Senior Data Analyst with 12 years of experience developing data warehouse and Business Intelligence solutions. Debbie has worked across several industries including HealthCare, IoT, and Manufacturing. Her areas of interest include data visualization, business analysis and cross-functional collaboration. Debbie's work focus within the Microsoft BI Stack has been on SQL server, Power BI, SSIS, SSRS, SSAS, DevOps as well as Oracle, GITHUB, JIRA, Pyramid. Debbie also used to be the co-organizer of Saturday Night SQL Virtual Group. When Debbie is not developing data warehouses, she enjoys walks, shopping at various farmer markets, exploring new cuisines nearby, and traveling the world. When she is tired of data exploration, she enjoys reading or watching sports. Basketball, Tennis, Football, Swimming are some of her favorite sports.


The App Dev Virtual Group was started in November 2013 by Gabriel Villa, Jr who grew the chapter to an impressive 15K users. In June 2015 the leadership was passed to Ed Elliott and Justin Dearing, and after that, from Spring 2017 to Davide Mauri who is restarting the chapter to deliver high quality training and guidance for developers who use not only SQL Server, but the entire Microsoft Data Platform. The scope of the VC will be more broad than in the past, in order to keep up with the request of modern times, embracing topics like NoSQL, Machine Learning, DevOPS, Continuous Integration, Streaming Data and all the technologies that Azure offer related to the Data Platform, discussed from a Developer perspective.

Meeting Schedule

Historically, we schedule at least one presentation every six weeks. We are always seeking good presentations to share with our group. If you would like to volunteer or make a presentation, please reach out to us at or via twitter @PASSAppDev .

Back to Top