This document provides a summary of Samuel Bayeta's qualifications and experience. It outlines his expertise in SQL Server, BI development, data modeling, ETL processes, and report design. It also lists his educational background in electrical engineering and over 5 years of experience as a SQL Server/BI developer for several companies, demonstrating skills in SQL, SSIS, SSRS, and data warehousing.

1. Samuel Bayeta
408-561-7465
samuel.bayeta@gmail.com
Summary:
 Over 5 years of excellent experience in the IT industry as a SQL Server/BI Developer.
 Proficient in MS SQL Server 2005/2008/2012 suite of products.
 Expert in writing parameterized Queries for generating reports, formatting report layout, sub
reports using global variables, expressions and functions in SSRS 2005/2008.
 Expert in defining data source and building data source views.
 Highly experienced in design of logical and physical data modeling using Erwin data modeling
tool.
 Well-versed with database Installation, configuration, maintenance, monitoring, backups and
recoveries.
 Proficient in data loads, database integration/conversions, performance tuning and optimization.
 Proficient in creating calculated measures and dimensions members using MDX, mathematical
formulas and user defined functions.
 Expert in creating OLAP with the use of Erwin.
 Strong experience in writing complex Stored Procedures, Triggers, Cursor, Linked Server Query,
UDF, and other SQL Server objects using T-SQL.
 Managed the Metadata associated with the ETL processes used to populate the Data Warehouse.
 Experienced in Using Performance Monitor/Profiler to solve dead locks/long running queries.
 Hands on experience in troubleshooting database issues.
 Expert in dealing with Alerts, Operators and Jobs through SQL Server Agent.
 Performed data migration between different versions of SQL Servers 2000/2005/2008.
 Worked on administration tasks such as data loading, batch jobs, data unloading, back up &
Recovery, user and application table management, upgrades, creating databases/file
groups/files/transaction logs.
 Capable of forming and maintaining positive and productive working relationships in
internal/external team environments.
 Capable to deal with the team members smoothly by positive attitude and strong communication
skills.
Education Qualifications:
MSC Corse work in Electrical Engineering from San Jose State University
BSC in Electrical Engineering from Jimma University, Jimma, Ethiopia in 2002
Skill set:
MS SQL Server 2012/2008/2005/2000,SQL Server integration Services(SSIS), SQL Server Analysis
Services(SSAS), SQL server reporting Services(SSRS), BCP,MS Office (Excel 2007/2003, Windows
Vista/XP/NT/, Windows 7, HTTP,HTTPS, XSLT, IIS 6.0, SQL, C++, T-SQL, HTML, ODBC,DBCC,
ADO,DTS, MS Access 2000/97, XML, ER-Designer,

2. Work Experience
Gateway One Lending and Finance
Anaheim Hills, CA
MS SQL Server/BIDeveloper
September2015 to Present
 Requirementgathering,translate businessrequirementsintotechnical design.
 Designhighlevel drill down parameterized,complex reportusingSSRS.
 Createddata drivenreportsubscription
 Designedcomplex Storedprocedure withLogginganddebugmode option.
 Optimizedqueries inStored proceduresbyusingdifferenttechniquessuch assettingisolation
level todirtread,indexing,avoidparametersniffing...
 Designedacomplex SSISpackage forautomatingdatamodificationinadatabase by reading
data fromexternal file source.
 DesignedSSISpackage forData Importingfrom external sources,usedScriptingtaskforfile
processing.
 Automatedmultiple processessuchas Loan Buy Back, Loan Selling,Investorportal controls.
 DesignedOracle package togenerate atext file fordataimportingtoa SQL serverenvironment.
 Generatedascript to create DirectoryobjectinOracle andcreatedan External table forreading
data intoOracle database.
 DesignedanOracle package to importdata fromExternal file,updatedatabase tablesandemail
alertfor differentconditions.
 CreatedSSISpackage to importdata fromoracle environment,deployedpackage intoSSMS
and Automate the ETL processusingSQL ServerAgentJob.
Carrington Mortgage Holdings LLC.
Aliso Viejo, CA
MS SQL Server BIDeveloper
November 2014 to September 2015
FOUNDED IN 2003, Carrington has evolved from a mortgage credit asset manager into a vertically-
integrated financial services company that covers virtually every aspect of the single family residential
real estate transaction,including investment in U.S. realestate and mortgage markets, loan origination
and servicing, asset management and property preservation, real estate sales and rental, and title and
escrow services. Carrington has built the infrastructure necessary to maximize value during any market
cycle.
Projects:
I. SQL server BI Developer
The objective of this project is to design an ad-hoc Report using SSRS.

3.  Created a drill down multi parametrized report using SSRS, created shared dataset and data
source.
 Created a Cascaded parameterized and multi expression reports using Visual studio TFS for a
version control, deployed reports to SharePoint site.
 Designed a report in SSRS with a functionality to interface report on a web-call and report viewer
and render report in a new tab.
 Developed Complex parametrized Stored Procedure for a data pull, optimized the query
based on the Estimated Graphical Execution plan; evaluated the performance for multi
value variables to optimize the query by preventing Variable sniffing.
 Designed an SSIS package to carry out an image loading for loans transferred from Different
Banks
 Generated a script in SSIS to parse out data about a file such as file modified date, file name rout
path
 Generated a SQL script to pull a data from SQL Server and migrate the data over to a flat file,
drop this file to a network location and automate the job for a daily drop using SQL Server Agent.
 Created data model for a Business requirement, designed a data cleansing and data loading,
automate the job Using SQL Server Agent.
 Assisted in DTS package conversion to SSIS 2012 packages project.
 Designed an SSIS package to generate an Index file for Images loaded in a database to finally
ingest index files into a Nautilus system.
 Implemented In memory table and used Column Store Clustered Index as a solution for
performance gain.
 Developed a Report in Power View using Power Pivot and Tabular data models.
 Detail research on Performance tuning that includes diagnosing an offending process
mechanisms, system tuning, query tuning and Index tuning also investigated the various Index
access methods to best utilize indexes.
Exsilio/Microsoft, Irvine, CA
MS SQL Server BIDeveloper
Dec 2013 to December 2014
Project -I: FMT-RTR Report Publishing
The objective of the project was to publish a Real Time Report to bypass Data Latency between BMX
system and FMT.
Responsibilities:
 Gathered requirements from the business users,created technical specification documents.
 Develop User Interface using Excel VBA,Created subroutine to gather user inputs through slicers
to pass parameters to the Underlying stored procedure through an XML string.
 Designed a report Logging activity from end users and Error Handling.
 Designed a complex Stored procedure to retrieve Microsoft Sales data for more than seven
metrics.
 Maintain Business logic while designing queries such as Microsoft sales Pipeline rules.

4.  Designed multiple views and user defined function for intermediate layer data access.
 Using Forecast management tool, performed data validation; granularity of opportunity and line
item level data validation; Troubleshoot data discrepancy from 30 different data sources.
 Generate Execution plan and conduct performance tuning
 Query optimization using different techniques such as data compression, Index
tuning, optimization for an optimal parameter combination considering variable sniffing, forcing
some queries to recompile where is appropriate.
 Used Team foundation Server for Version Control, Do schema compare and update the TFS
target for each release.
 Created complex ETL strategies to extract,clean and deliver data to OLAP environment
 Created Drop Folder on TFS to drop Scripts, UI (Excel Dashboard) and Release note for each
Deployment.
 Provided 30+ Knowledge transfer sessions and prepared Project transition manual as the project
was transitioned to FMT Engineering Team.
 Handled users support issues and closed support tickets in time.
 Created SSRS Report for complementary requests on Services side of BMX.
 Studied existing OLAP system(s) and created facts,dimensions and star schema representation
for the data mart and warehouse systems.
 Used SQL 2008 Server Analysis Services to design cubes with dimensions and facts and created
different cube objects like KPIs,Drill through Actions, Perspectives,Aggregations, and
Translations.
 Optimized cubes using the aggregation wizard and usage based optimization to make the queries
more efficient and faster.
Project -II: BMXPublish
 Responsible for monitoring daily running jobs.
 Troubleshooting when a Job failed by diagnosing log database.
 Provide support for users with any issue from BMX users such as security, access, data …
 Run scripts for clients on BMX servers for reporting purpose.
 Maintain and troubleshoot the data warehouse database(BMXDW) and staging database
 Troubleshooting stored procedures that populates staging tables and data warehouse tables.
 Designed SSIS Package for migrating Microsoft Sales data from FMT server to BMX Staging
server.
 Scheduled a Job that tracks Jobs either failed or long running and sends an email alert for BMX
Publish team.
 Designed a cube(47.6GB) in SSAS using BIDS environment; created different set of hierarchies
on multiple dimensions, defined relationship between measure groups and Attributes, set attribute
and attribute hierarchy properties.
 Designed aggregations, named set, perspectives for cube refinement.
 Adept in OLAP data warehouse design practices to include the design of OLAP cube objects, the
design of optimal and efficient cube processing strategies based on infrastructure as well as cube
size.
 Hands on experience in the entire Report Life Cycle, designing multiple types of reports in SQL
Server Reporting Services (SSRS) including Cascading Parameterized, Drill down/Drill through,
sub reports and ad-hoc reports.
 Involved in Report generation using SSRS and Excel services and deployed them on SharePoint
Server.
 Worked with different schedules for report delivery to e-mails and shared directories; enabled
caching, snapshot to improve the response times and reduce traffic to the report server.

5.  Utilized Reporting Manager to secure the reports with windows user groups and roles for
individual reports and also report folders.
Hardware/Software:
MS SQL Server 2012 SSRS 2012, SSIS 2012, SSAS 2012, SSMS, MDX, ASP.NET,VB.NET,C#.NET,
T-SQL, MS Share Point, XML, Excel and VBA.
Union Bank, Brea, CA
MS SQL Server/ Business Intelligence Developer
March 2013 –Dec 2013
The objective of the project was to create Data Warehouse to track the performance,analyzing
transactions.
Responsibilities:
 Created new logical and physical design of database to fit new business requirement and
implemented new design into SQL Server 2008.
 Creating and managing schema objects such as Tables, Views, Indexes, Unique/Check
Constraints and referential integrity depending on user requirements and converting them into
technical specifications.
 Developed SSIS packages to transfer data from OLTP to OLAP database.
 Developed the SSIS packages with different transformations, precedence constraints,
configuration settings, check points and security levels while gathering data from different
sources.
 Maintaining existing reports, preparing presentations per management requests,extracting data,
data entry into spreadsheets,employing complex and dynamic filters, scheduling reports and
managing distribution lists, documenting work procedures, versioning control, and validating data
for accuracy.
 Created OLAP cubes on top of the data warehouse basing various fact and dimension tables for
analysis purposes using SQL Server Analysis Services (SSAS) 2008 and refined the existing
cubes by adding the new attributes to the dimensions and defining the relationship between the
new attributes and the measure groups.
 Created/modified a variety of parameterized, drill down, click through, chart, matrix, and sub
reports using SSRS 2008 and migrated the reports from SSRS 2005 to SSRS 2008.
 Wrote complex MDXqueries to develop the Calculated Members and while gathering the data
from the OLAP cubes while generating the reports in SSRS.
 Integrated the reporting services with MS Share Point while deploying the reports.
 Scheduled the reports to run on daily/weekly/monthly basis and email the results to the business
users in the required format.
 Worked with SQL Profiler, Tuning Wizard, Execution Plan and Performance Monitor in order to
analyze and optimize the queries, procedures.
 Added/modified Users,Groups, folders, rights and implemented log shipping, mirroring to
maintain the high availability of the servers.
 Ran/Tested required queries, reports before publishing and scheduled the tasks to run every day
to update changes in the base tables.
 Published the reports.

6.  Designed and implemented Stored Procedures and Triggers for automating tasks.
 Managed all indexing, debugging, optimization and performance tuning using T-SQL.
 Created/modified SQL Joins, sub-queries, and other T-SQL and PL/SQL code to implement
business rules.
 Involved in documenting the project steps and presenting to the team members.
Hardware/Software:
MS SQL Server 2008/2005, SSRS 2008/2005, SSIS 2008, SSAS 2008, SSMS, MDX, ASP.NET,
VB.NET,C#.NET,T-SQL,MS Share Point and Excel.
Bartronics AmericaWells Fargo Bank,San Francisco, CA
MS SQL Developer/BI developer
Apr 2011 – Feb 2013
The objective of the project was to design and develop the data warehouse. Create SSIS packages &
reports for Trading Investment banking services. Migration of database from SQL 2005 to SQL 2008.
Responsibilities:
 Gathered business requirements, definition and design of the data sourcing and data flows, data
quality analysis, working in conjunction with the data warehouse architect on the development of
logical data models.
 Designed and implemented complex SSIS package to migrate data from multiple data sources for
data analyzing, deploying and dynamic configuring of SSIS packages.
 Created logical and physical data models using Erwin for new requirements after discussion with
technical team and application users as per agile methodology.
 Designed high level ETL (Extraction Transformation Loading) architecture for overall data
transfer from the OLTP to OLAP with the help of SSIS.
 Extensively used SSIS for transferring data manually from DTS packages to SSIS packages using
SSIS 2005.
 Designed and developed SSIS packages to move data from SQL 2005 to SQL 2008.
 Developed and maintained a combined data store for reporting purposes.
 Generated reports using Global Variables, Expressions and Functions using SSRS 2005.
 Identified the database tables for defining the queries and defined datasets for report generation.
 Created parameterized, drill down and sub reports in MS SQL environment using SSRS 2005.
 Generated daily, weekly and monthly reports for the managers.
 Administered interface to organize reports and data sources, schedule report execution and
delivery, and track reporting history using SSRS 2005.
 Extensively used performance monitor/SQL profiler to solve dead locks/long running queries.
 Tested the reports and fixed bugs in the stored procedures.
 Managed the Metadata associated with the ETL processes used to populate the Data Warehouse.
 Developed data access layer using C# classes.
 Established backup and recovery of SQL server 2005.
 Wrote complex MDXqueries to develop the Calculated Members and while gathering the data
from the OLAP cubes while generating the reports in SSRS.
 Integrated the reporting services with MS Share Point while deploying the reports.
 Worked in conjunction with the data warehouse architect on the development of data mart.

7.  Designed and optimized complex stored procedures to perform data profiling and auditing
purposes in the pre-staging database.
 Optimized the performance of various T-SQL scripts, stored procedures and triggers by using
embedded UDFs,CTEs and System stored procedures.
 Created Dimension and Fact Tables for the Staging Database following the Kimball
Methodologies.
 Designed Mappings between Sources to Operational Staging Targets,Using Star Schema, and
designed logic for incremental load using slow changing dimension and Check sum.
 Created complex ETL strategies to extract,clean and deliver data to OLAP environment.
 Implemented the Master Child Package Model for easier maintenance and better performance of
the ETL strategy.
 Identified and effectively handled early arriving Facts and late arriving dimensions.
 Deployed various types of SSIS Transforms in packages including slowly changing dimension,
aggregate,fuzzy lookup, conditional split, row count, derived column, script component, etc.
Hardware/Software:
MS SQL Server 2005/2008, SSRS 2005, SSIS 2005, T-SQL, C#.NET 2.0, Visual studio 2005,
ASP.NET, DTS,Data Analyzer, java script, MS Access, Excel,SQL Profiler, Windows XP, Erwin 4.2,
VSS 2005