Name:Rakeb Desta

E-mail: advm54@r.postjobfree.com

Cell: 469-***-****

Summary

Over 7 years of experience in reporting solution development, ETL development, business intelligence solutions, and enterprise data warehouse development involving multiple industries.

Expert Knowledge in building and managing relational databases and tables normalization/denormalization using SQL Server Management Studio (SSMS).

Expert with producing highly efficient and project-oriented T-SQL query statements.

Goal-oriented usage of features such as Dynamic SQLs, Cursors, Views, Stored Procedures, User-Defined Functions (UDFs), Triggers, Indexes, and Temp Table in SSMS to provide convenience for front-end applications or reporting purposes.

Proficient in tuning the performance of query statements using Execution Plan, SQL Profiler, and Database Engine Tuning Advisor.

Profoundly experienced in feature design and flexible usage of tabular charts, donut charts, histograms, and maps to express business solutions comprehensively using visualization tools including Tableau, Power BI, MS SQL Server Reporting Service (SSRS), and Excel.

Excellent knowledge of MS SQL Server Integration Service (SSIS) to perform ETL solutions for Data Migration, Data Conversion, Data Validation, Data Management, Reporting, and supporting other analyses.

Profound understanding of Enterprise Data Warehouses and Data Marts including OLTP/OLAP, Dimension/Fact Tables, Top-down/Bottom-up models, and Star/Snowflake Schemas using Landing and Staging stages.

Strong Skills in using SSIS Control Flow (Execute SQL task, Foreach Loop Containers, Script Task, File Task, Expression Task, etc.) and SSIS Data Flow (Derived Column, Count, Multicast, Conditional Split, Lookup, Data Conversion, etc.)

Substantial experience in the usage of Event Handlers, Loggings, Checkpoints, Breakpoints, and Debugging in SSIS.

Proficient in using skills like Slow Changing (Type 0/1/2/3) and Change Data Capture to load and transform data dynamically.

Highly skilled with Agile/Scrum/Waterfall working methodologies along with phases of the Software Development Lifecycle (SDLC)

Effective problem solver with thorough analytics added to credible and concise presentations.

Technical Skillset

RDBMS: MS SQL Server 2016/2012/2008R2/2008/2005, MySQL, Oracle.

Reporting Tools: SQL Server Reporting Services (SSRS), Excel 2016/2013/2007, Tableau 10/9/8, Power BI.

Languages: T-SQL, PL/SQL, C++, C#.

ETL: Server Integration Service (SSIS), Data Transformation Services (DTS), SQL Server Data Tools (SSDT), Data Quality Services, Talend.

Data Warehouse/OLAP: SQL Server Analysis Services (SSAS).

Development Platforms: Visual Studio 2015/2010/2008, SharePoint 2013/2010, Atom, Jupyter, PyCharm.

Project Management: JIRA, Slack, TFS, Microsoft Project, Microsoft Visio.

Project Experience

Hillcrest Bank

October 2020 – Present

SQL/ETL Developer

Responsibilities:

Involved in requirements gathering, logical and physical data modeling, developing fact and dimension tables, configuring ETL workflows to populate fact and dimension tables, and developing Cubes and reports for analysis.

Developed complex SQL queries and performed optimization of databases and tuning of long-running SQL Queries by using SQL Server Profiler and SQL Tuning Advisor.

Troubleshooting and correcting production ETL issues.

Optimizing stored procedures, T-SQL, views, and functions for the best performance.

Refining and automating regular SQL processes, tracking issues, and document changes.

Developed and automated SSIS packages to perform Extraction, Transformation, and Loading (ETL) of data from various sources like Flat files, MS Excel, CSV, and MS Access to SQL Server.

Developed complex database objects like complex stored procedures and complex UDFs.

Created database objects like tables, views, indexes, and triggers in MS SQL Server that support relational and dimensional database models.

Developed script for data manipulation and ensuring data integrity.

Designed, developed, and maintained a data warehouse.

Creating Tabular reports with SQL Server Reporting Services (SSRS).

Generating parameterized reports, drill down drill through reports.

Deployed and created report schedules and subscriptions. Managing and securing reports using SSRS.

Environment: SQL Server 2012, SQL Server Management Studio (SSMS), MS BI Suite (SSIS/SSRS), SQL Server Data Tools (SSDT), Excel VBA/ Macros, MS Office Suite 2010 (Excel, PowerPoint, Word), Tableau 10, JIRA, WebEx, Agile/Scrum

Sunbelt Rentals

January 2016 – September 2020

Business Intelligence Developer

Responsibilities:

Gathered and documented project requirements from stakeholders and translated them into functional and non-functional specifications for BI reports and applications, and transformed them into deliverable solutions

Participated in the data mapping process, figuring out and documenting meanings of columns and tables as well as relationships among them.

Responsible for extracting data from external resources using T-SQL and PL/SQL based on business requirements such as Stored Procedures, User Defined functions (UDFs), and Views.

Tuned the performance of query statements by analyzing execution plans and logs/statistics in SQL Server Profiler/Database Engine Tuning Advisor.

Designed and developed ETL packages to realize full loading and incremental loading to convert and migrate data, transform data using lookup, merge joins, derived columns, and built the target data warehouse and data marts based on Star Schema.

Involved in designing ETL packages using breakpoints and analyzing progress to catch error information by SQL command in SSIS that sends an e-mail message when an error or a warning occurs or when a task fails.

Developed reporting solutions for different stakeholders from mock-up demos for deployment and analyze different dimensions such as claims, transactions, appointments, supply, assets, and properties both in SSRS and Tableau.

Developed reporting solutions including tabular reports, and matrix reports, using cascading parameters to achieve Drill-down Reports, Drill-through Reports, as well as Linked Reports for security concerns in SSRS 2008/2012 for the front-end application usage.

Worked with the QA team, clarified and solved the issues, and delivered to the project manager for approval and feedback.

Optimized SSRS report performance by snapshots and indexes while writing query statements.

Optimized report performance by refining queries in T-SQL, removing redundancies, retrieving only essential data, and using SQL methods efficiently.

Worked with the test team to operate unit testing on completed packages and Production Control Team to schedule the operation of the entire package.

Used pages, cascading parameters, expressions, and other features to create drill-down reports, drill-through reports, and nested reports as operational reports in SSRS.

Interacted with the Data Science team and developed risk management reports using Tableau for advanced visualizations.

Environment: SQL Server 2010/2012, Oracle 10g, SQL Server Management Studio (SSMS), MS BI Suite (SSIS/SSRS), Business Intelligence Development Studio, Visual Studio 2008/2010, Tableau 8/9, MS Office Suite 2013 (Excel/Access/Word/PowerPoint), TFS

Academic Background

Unity University

Addis Ababa, Ethiopia

Bachelor’s Degree

Computer Science

2011-2014

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