
John Dangov
- Sr. Data / BI Architect
- New York City, NY
- Member Since May 21, 2023
John Dangov
Owner/Sr. Consultant - Streamlined Solutions 2006 – Present
Results-driven senior BI/Big Data/Data Warehouse consultant having extensive experience producing multi-tiered, multi-terabyte, distributed deliverables across a diverse set of industries. Vendor specific implementations are optimized from platform independent architectures and designs.
Technologies: Big Data/Relational/Dimensional Models. Tableau/PowerBI. Agile/Waterfall/Iterative methodologies.
Strengths
|
SQL/BI Expert |
Financial Services |
Project Management |
|
OLTP/OLAP/Data Vault |
BI/Data Analytics |
Team Leadership |
Technologies/Methodologies
|
Teradata, Netezza, SQL Server, |
SSIS, Pentaho, WhereScape |
Tableau, Power BI |
|
Hive, Azure, DB2, Redshift |
Erwin, Perl, Cosmos |
Agile, Waterfall, Iterative |
PROFESSIONAL EXPERIENCE
· Kaiser Permanente: Sr. Consultant (Contract – Streamlined Solutions) Oct. 2017 – Present
Productionalizing Teradata, MPP, Data/BI projects. ETL, DW, Data Vault Design, WhereScape Modeling. Partitioning strategies now scale at table and job level. Reduced processing window by factor of 3.
· T-Mobile: Sr. Lead Architect/Manager (Contract) May – Sept. 2017
Convert existing adaptors from Oracle to Big data based Perl/Java ETL and reporting layers. Introduced Agile steps into their Waterfall methodology and Test Harness. Finished phase one a month ahead of schedule,
· Microsoft: Principal Big Data/BI Consultant (Contract) Nov 2016 - Feb 2017
Responsible for Cosmos ETL and Code Migration layers for Executive Power BI application for Azure cloud
· Leeds: Sr. Data/BI Architect (Contract) Sept 2016 – Nov 2016
Implemented a solution for consolidating 100 remote legacy SQL instances into a scalable centralized Power BI driven analytic layer. Introduced Excel UI layer which enabled two-way ETL communication.
· Disney: Sr. BI Architect/Data Engineer (Contract) Nov 2015 – Sept 2015
Assisted with executive level company reorg. Identified suitable software, hardware, BI/Big Data/ETL platforms. Executive level Tableau/Redshift/Netezza financial reporting. Implemented ETL framework written in Python and Test Harness. Defined new technical direction. Was offered an in house position.
· Farmers Insurance: Sr. Information Architect (In-House) June 2015 – Nov 2015
Aligned IT Data Vision with Zurich's Big Data, BI, Data Governance and MDM strategies, IT Data Technologies and Future Solutions. Oversaw outsourcing of $20 million data foundation projects
· T-Mobile: Sr. Data/BI Architect (Contract) Mar 2015 – June 2015
Refactored big data layer. Eliminated bottlenecks for Tableau/Micro Strategy/Pentaho BI Layers. Lead java BI and ETL development efforts. Captured data models for existing systems.
· Microsoft: Sr. Program Manager (Contract) Nov 2014 – Mar 2015
Supported transition of teams aligning with new Hadoop roles for Microsoft’s multi-year azure roadmap
· Edifecs: Sr. BI/Data Architect (Streamlined Solutions) July 2014 – Nov 2014
Reengineered Tableau BI/Big Data Platform for a meta data driven Medical Systems Integrator. Technologies include Pentaho ETL scripting, Tableau BI, SQL Server and Oracle backend. Was offered an in house position.
PROFESSIONAL EXPERIENCE
· Getty Images: Sr. Data/BI Consultant (In-House) Mar 2014 – July 2014
Reengineered a digital Power BI financial reporting layer from Oracle, MySQL, Cognos, Micro Strategy, and SSRS. Mentored junior bi developers.
· Premera: Sr. Data Modeler/Architect (Contract) Aug 2013 – Feb 2014
Responsible for dimensional and 3NF Health Care enterprise data models. Projects include Medicare Advantage, Obamacare, and Tableau BI data mining. Technologies include Netezza, Tableau, and Erwin.
· Corbis: Sr Big Data/BI Consultant (Contract) Jan 2013 - Aug 2013
Architected and implemented BI and Big Data ETL layers for a new digital product. The custom Java reporting layer ran on top of MongoDB. The enterprise data warehouse and test harness ran on SQL Server
· AT&T: Sr. BI/Data Consultant (Streamlined Solutions) Oct 2012 – Jan 2013
Converted a PhP product managing multi-million dollar financial transactions. Refactored the data, ETL, test harness, and BI layers to MySQL and Inetsoft’s proprietary data and BI formats.
· Microsoft: Sr. Data Architect (In-House) Oct 2011 - Oct 2012
Architected and implemented a metadata driven ETL and Schema migration engine and test harness. Enabled zero-downtime, future-dated release activations from heterogeneous terabyte sized CRM sources. System detects and automates schema and record deltas. Oversaw a log-shipping BCDR effort.
· Microsoft: Sr. Technical Program Manager (Streamlined Solutions) May 2011 – Sept 2011
Managed remote teams developing a BI Portal Offering and an enterprise level Data Quality framework.
· Ernst & Young: Sr. Consultant (Contract) Jan 2011 – May 2011
Oversaw phase one for a global scalability effort consolidating E&Y’s BI/Data/ETL layers for 145 offices. The Microsoft BI/DW Stack was converted from an Oracle platform.
· Net Motion: Sr. Data/BI Architect (In-House) May 2008 – Nov 2010
Responsible for the data and BI architecture of a new 2-terabyte real-time product. A QlikView and Tableau reporting layer ran on top of a MySQL Data Warehouse. The meta-data driven installations are stand-alone, self-maintaining, configurable and customizable. Introduced automated test harness.
· Expedia: Dev Manager/Architect (In-House) Jan 2006 to May 2008
Responsible and accountable for development and management of 9 corporate financial enterprise systems. Came in as the only in-house senior database engineer. Built a new team of high-caliber, in-house staff while replacing existing contract positions. Technologies include SQL Server, DB2, Informatica ETL, Business Objects, .Net UI layers, and SQL Server test harness.
· Microsoft: Sr. Data Architect (Contract) Oct 2005 – Jan 2006
Responsibilities include data modeling, coding, ETL, test harness, and data conversion procedures of distributed SQL Server layers for the Vista Digital Licensing system. Was offered an in-house position.
· Tamarac: CTO/Dev Manager (In-House & Streamlined Solutions) May 2000 – Oct 2005
Responsible for all tiers of web based equities/financial portfolio optimization system. Joined startup as a Principal C++ Engineer (employee 1). Left as CTO. Automated installs and test harness. Sold for 55 Million
· State of Nebraska: Sr. Program Manager (1 Year Visa Contract) Mar 1999 – April 2000
Managed the re-architecture of a Health and Human Services expert system. 40 business and technical areas were addressed. Technologies include: AION, DB2, automated test harness.
EDUCATION
York University
M.Sc. – Computer Science: Object Oriented Design/Artificial Intelligence (50% Complete) A+ Average
B.Sc. – Specialized Honors Computer Science: Graduated top of class