Yoseph Gebrelibanos

Yoseph Gebrelibanos

SQL/Power BI Developer

Montgomery Village, Maryland, United States.


Because my skillset and experience makes me a perfect match for this position. I'm also a quick learner, resilient and open to new ideas and environments.

Hours Available / Wk - 40 hrs

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Lung Cancer Analytics Dashboard

Would you like to find out trends of lung cancer in your state between the years of 2003 and 2013? W... ... More

Employment History 

  • SQL/Power BI Developer

    Colaberry Inc
    February 2018 - Present

    • Designed data models and dashboards with Power BI desktop based on measure and dimension as requested by customer needs and requirement.
    • Extensively used complex DAX functions to generate reports based on Daily, Monthly & Yearly data.
    • Utilized Python libraries such as Pandas, NumPy, SciPy, SciKit-Learn & Matplotlib for data structuring, preprocessing, visualization & creating predictive models.
    • Developed and Created Workspace and Apps in Power BI service and giving access to end users to Apps.
    • Created Row level security (RLS) and integrated with Power BI service (SaaS) portal.
    • Maintained different levels of Data Security in Power BI while granting access to data and assigning Row Level Security (RLS) when needed.
    • Production support, troubleshooting and debugging in a high-volume transaction.
    • Used Power BI, Power Pivot to develop data analysis prototype, and used Power View and Power Map to visualize reports.
    • Designed reports like table report, matrix report, cascading report, sub reports, drill down, drill through and chart reports using complex data set queries, stored procedures, views in SSRS.
    • Created Proof of Concepts (POCs) for various projects using Power BI.
    • Design and develop Business Intelligence solutions using MSBI tools.
    • Worked in building Business Intelligence solutions on large-scale RDBMS data warehouses.
    • Built KPIs based on the end user requirements, worked on Performance of SSAS Tabular model.
    • Designed, Processed, and deployed OLAP cubes with star schema and multiple partitions using SSAS.
    • Worked closely with development team reviewing, building, testing, and maintaining database structures and SQL scripts.
    • Created and deployed SSIS packages using various Transformations such as Slowly Changing Dimension, Lookup, derived column, merge, multicast and Conditional Split SSIS components.
    • Maintained SSIS packages for production and test environment for incoming source application files.
    • Applied dimensional data modeling such as star and snowflake schemas to design data marts.
    • Write and debug T-SQL Queries, SSRS Reports, SSIS Packages and Stored Procedures.
    • Utilized Power BI online services and Desktop application to create interactive visuals and KPI scoreboards.
    • Designed, developed, implemented, and maintained databases to manage data analysis efforts.
    • Extensively used T-SQL queries in constructing user functions, views, indexes, data extraction and management.

  • Programmer Analyst

    West Virginia Department of Environmental Protection
    April 2011 - February 2018

    • Utilized open source tools like python to build a routine that can automate or optimize several
    existing processes.
    • Performed GIS Analysis, application development, user support & other GIS related activities
    • Performed LiDAR point classification and delivered LiDAR data derived products such as
    digital terrain models, slope, Hillshade, aspect, 3D models, Rasters and contours
    • Prepared GIS application user manual, trained user staff in the operation of GIS applications
    and provided user support for GIS application programs
    • Researched, Developed, implemented new methods of measuring and analyzing data sets
    and processes
    • SQL query for data extraction and management
    •Worked closely with development team reviewing, building, testing and maintaining database structures and SQL scripts.
    • Applied tools and algorithms to identify trends in mining fills and associated stream loss in Southern West Virginia.
    • Produced cartographically sound web maps for conference and public forums.
    • Conducted data mining and retrieval, and applied statistical and mathematical analyses to identify trends, solve analytical problems, and optimize performance.
    • Performed supervised image classification by applying the Support Vector Machine algorithm to identify land cover from imagery.

Digital Credentials  

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