Helen Dow

Helen Dow

SQL / Power BI Developer

New Market, Alabama, United States.

About  

Power BI and SQL BI developer with 5+ Years of experience in Database Design Development, ETL Implementation and support of Data warehouse systems using Microsoft SQL Server 2016 across various SDLC environments.

Hours Available / Wk - 40 hrs

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Employment History 

  • SQL / Power BI Developer

    Colaberry Inc.
    February 2019 - Present

    • Involved in planning, defining, and designing database based on the business requirements document BRD.
    • Created SSIS packages to extract the data from multiple sources like Excel, XML and OLTP and consolidate them into staging tables.
    • Used multiple SSIS transformations such as: data conversion, derived column, conditional split to cleanse and validate data.
    • Worked on SSIS performance tuning using counters, error handling, event handling, re-running of failed SSIS packages using checkpoints.
    • Scheduling Jobs and Alerting using SQL Server Agent.
    • Followed a star schema design in data warehouse creation, which outlined measurable financial data in the fact table, along with detailed data in surrounding dimension tables.
    • Generated reports in various formats like Table format and Matrix format using Reporting services (SSRS) to display in a customized format as per business requirements.
    • Created and deployed reports to report manager and troubleshooting for any error occur in execution.
    • Created Sub-Reports, Drilldown-Reports, Drill through, Summary Reports, and Parameterized Reports in SSRS.
    • Ensure all reports meet agency and performance requirements.

  • SQL / SSIS Developer

    LendingTree
    January 2018 - January 2019

    • Gathered business requirements, definition and design of data source and data flows
    • Created complex SSIS packages using various transformations and tasks like Sequence Containers, Script, For Loop and Foreach Loop Container, Execute SQL/Package, Send Mail, File System, Conditional Split, Data Conversion, Derived Column, Lookup, Merge
    • Join, Union All, flat file source and destination, OLE DB source and destination, excel source and destination.
    • Designed SQL database with control and audit schema tables to maintain historical data and error handling.
    • Created new database objects like Procedures, Functions, Packages, Triggers, Indexes and Views using T-SQL in Development and Production
    • Improved Performance of the database by creating Clustered and non-clustered Indexes and by optimizing the T-SQL statements using SQL profiler
    • Created Sub-Reports, Drilldown-Reports, Drill through, Summary Reports, and parameterized Reports in SSRS