Sr. Data Modeler BI

Businesses face challenges every day building responsive and agile IT capabilities to grow and stay ahead. Since everyone has access to the same tools, your competitive advantage directly depends on how you apply technology – on the people leading, supporting and optimizing your IT initiatives. USM Business Systems, established in 1999, is an industry-leading private talent management firm, specializing in providing unique IT turnkey solutions, IT staffing solutions, and Talent management insights, enabling you to sustain a truly competitive advantage in this fast-moving environment. USM has offices throughout the US and offshore delivery centers in India. USM is a certified Minority Business Enterprise and is a CMMi Level 3 Organization.

USM is recognized as one of the fastest growing IT Temporary Staffing firms in the US and most recently was ranked #3 on the list of the Top Temporary Staffing firms in the DC Metro Area – Washington Business Journal

Rapidly developing dimensional models or analytical data sets based on specific business requirements. Experience in ER - dimensional model design and implementation of STAR and SNOWFLAKE schemas is a must.

Work with the Architecture and Governance team to set strategy for conformed dimensions, and enterprise hierarchy etc.

Transform Logical Data Models into Physical Data Design for the IBM DB2 database, for the both the Integration and Access Layers in the three tier architecture.

Engage with Data Architects, Directors and Business Users to understand data access paths and business use.

Apply appropriate Denormalization and Audit Balance and Control columns.

Perform data profiling, and business rules investigations on source data, to ensure correct design of the Integration and Access layers.

Map and document data transformations of data from a business terms perspective.

Support project delivery teams in assessing their resource needs to deliver the Integration and Access layers.

Job Title: Sr. Data Modeler BI

Location: Washington DC

Duration: 12+ months

GC or Citizens Only

Locals to VA, DC, MD, DE

Required Skills

• Dimensional Modeling

o At least 5 year hands on experience designing and implementing Star Schemas

o At least 5 year experience implementing Data Warehouse presentation layer - including design and definition of logical tables, physical sources, dimensions, columns, aggregation rules

o At least 5 year experience in writing advanced SQL queries, views, and optimization of SQL queries

o Comprehensive Knowledge of Ralph Kimball's Data Modeling Concepts including Transaction dimensions, conformed dimensions and facts, slowly changing dimension, multi-Star/ Snowflake Schema Modeling, different types of Fact tables

o Implementing a virtual semantic layer (virtual star schema) using views on a multi-tiered normalized Integrated Operational Data Store is a huge plus

• NF (Relational) Logical and Physical Modeling

o This position is not focused on 3NF data modeling but experience with 3NF models is required

o At least 2 year hands on experience with 3NF Data Modeling and NORMALIZED schema

o Comprehensive Knowledge of Bill Inmon's Data Modeling Concepts (Logical and Physical) including 3NF, Supertypes, Subtypes, Abstraction, Associative entities / tables

o Experience with IBM DB2 Physical Modeling and Performance Tuning

• Business Intelligence

o This position is not focused on BI platform but rather on the data platforms, but experience with BI platforms is required

o Hands-on experience with BI application architecture and development

o Hands-on experience in designing technical architecture, installation and configuration of BI Stack components

o Extensive knowledge in Presentation layer such as MOLAP, ROLAP, HOLAP, Ad-hoc reports.

o Experience creating mockup reports, demo, & storyline a plus

• Proven ability to work in a team environment

• Thrives in an environment of changing priorities

• Excellent problem solving and critical thinking skills.

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