Sr. Data Analyst Resume
Monterey Park, CA
SUMMARY:
- A Data Analyst with over 7+ years of experience in Insurance, Financial, and Healthcare domains using Oracle 11g/10g, MS SQL, Hadoop and Teradata.
- Experience in Data Modeling techniques employing Data warehousing concepts like star/snowflake schema and Extended Star.
- Knowledge in design and creation of database and database schema.
- Experience writing SQL Queries for Data Validation and Data Integration.
- Experience of working in the area data management including Data Modeling, Metadata, Data Analysis, Data Mapping and Data Dictionaries.
- Served as web analytics technology expert related to tagging and tracking enhancements, solution design and reporting - participating in various web & toolintegration projects.
- Excellent knowledge of industry standard methodologies like Software Development Life Cycle (SDLC), Iterative Software Development Life Cycle Process, and Agile Scrum methodology.
- Experience in creation of data source and transform them into custom created datamarts.
- Extensive experience in visualizing the design of the system using UML diagrams, Activity diagrams, and Web page mock-ups.
- Strong expertise in building, Templates, Graphical analysis charts and Statistical reports using MS Excel and also expertise in MS Word, MS PowerPoint.
- Performed data cleansing, data anomaly resolution and developed cleansing rule sets for ongoing cleansing and data synchronization.
- Developed Excel applications (pivot tables, VLookups) to streamline processes for analysis and reconciliation.
- Excellent presentation skills in preparing contingency plans, review logs, forecasting and planning work schedules with excellent comfort level in using Microsoft Project.
- Functioned as the primary liaison between the business line, operations, and the technical areas throughout the project cycle. Experience in working with business users as well as senior management.
- Strong in analytical and problem solving skills, excellent planning and multi-tasking abilities with proven experience in utilizing people and process knowledge to help enterprise make critical decisions.
TECHNICAL SKILLS:
Analysis Methodologies: Scrum, UML, Agile methodology, Waterfall methodology, SWOT, Cost-Benefit Analysis, Gap Analysis.
Databases and Tools: MS SQL Server 2008, SAP Sybase, MySQL, DB2, Oracle, Hadoop
Operating Systems: Microsoft Windows XP, UNIX
Quality Management: HP ALM, Quality Center, RM Track
Business Modeling Tools: Microsoft Visio, Share Point
Reporting: Crystal Reports, Business Objects, QlikView
Project Management: Microsoft Project, Microsoft Office Suite.
PROFESSIONAL EXPERIENCE:
Confidential, Monterey Park, CA
Sr. Data Analyst
Responsibilities:
- Gathered and translated business requirements, worked with the Business Analyst and DBA for requirements gathering, business analysis, and testing and project coordination.
- Dealt with conflicting scenarios when the requirements and the reverse engineering communicated different cleansing rules.
- Always Confidential t in analyzing the root cause of data issues and clarifying it with the data owners.
- Performed Reverse Engineering of the legacy application using DDL scripts in Erwin, and developed Logical and Physical data models for Central Model consolidation.
- Worked with DBA’s to create a best fit Physical Data Model from the Logical Data Model using Erwin.
- Administered and maintained the model updates using Model Mart for the entire project team.
- Employed process and data analysis to model a Customer Information Business System.
- Conducted logical data model walkthroughs and validation.
- Conducted team meetings and JAD sessions.
- Developed data mapping documents for integration into a central model and depicting data flow across systems.
- Extensively used Star Schema methodologies in building and designing the logical data model into Dimensional Models
- Redefined many attributes and relationships in the reverse engineered model and cleansed unwanted tables and columns as part of Data Analysis responsibilities.
- Involved in performing extensive Back-End Testing by writing SQL queries and PL/SQL stored procedures to extract the data from SQL Database using Hadoop.
- Developed the data warehouse model (star schema) for the proposed central model for the Project.
- Developed Process Methodology for the Reverse Engineering phase of the project.
- Developed and maintained the central repository, populated it with the metadata.
- Used Business Objects for validating the metadata and testing the data of reports.
- Designed and developed reports for the data in the Data Warehouse using Business Objects / excel.
- Analyzed data using Slice/Dice and Drill up/Drill down to analyze data to meet the end user’s requirements.
Environment: Oracle 11g, Erwin 4.0, MS Visio, MS Office, MS Excel, SQL, Hadoop, SAP Sybase adaptive Server enterprise, SAP Business Objects 4.1
Confidential, San Francisco, CA
Data Analyst
Responsibilities:
- Performed source data identification and analysis to get a clean master data to report to customer
- Liaison between stakeholders, system users, clients and managers, software development team and the QA term to gather requirements.
- Designed and implemented complex SQL queries for QA testing and report/ data validation.
- Data analysis and reporting using MY SQL, MS Power Point, MS Access and SQL assistant.
- Monitored performance, integrity to optimize SQL queries for better efficiency
- Performed data cleansing, data validation and mapping as described in the business requirements.
- Write down the SAS programs for processing of data sets and perform data mapping in the data warehouse.
- Created interactive reports and dashboards using tool tips and customized features such as subtotal, alerts, color coding and drill maps to better understand business trends
- Proficient in downloading SAS flat files to Microsoft Word, Access or Excel for additional database for manipulation and analysis.
- Tested dashboards and reviewed the data for various KPI.
- Extensive use of EXCEL PIVOT tables to run and analyze the result data set and perform UNIX scripting.
- Implemented business modeling, data modeling, and object modeling using MS Visio to develop the business architecture for the application.
- Analyzed, build and documented the different Metadata and Data dictionaries that will be required
- Actively trained Business Users involved in User Acceptance Testing (UAT) and helped them understand UAT procedure
Environment: SQL, MY SQL, Erwin, Data Stage 6.0, Model Mart, MS Sharepoint, PL/SQL and SAS.
Confidential, New York City, NY
Data Analyst
Responsibilities:
- Reviewed and gathered requirements from the Subject Matter Experts (SME) and Business Partners and created Scope and roadmap Documents.
- Written complex queries to profile the data and test the data readiness for the quick response code management data.
- Created artifacts such as Use Cases, Prototypes, and Business Flows and Work Flow diagrams for effective plans.
- Experience in creating blueprint of the system Database and helping the development team come up with the design of the database and maintaining the proper ER relationship.
- Effectively created Data Dictionaries, XML mapping spreadsheets for interface requirements based on design solution.
- Loaded and managed the business, system and data requirements using Microsoft Office and RM Track.
- Managed changes in requirements using a Change Control process as defined by the organization. Including interacting with the sponsor for getting any required approvals for CR raised by the technical / business team.
- Performed root cause analysis of any data related defects using RM Track.
- Helped in analyzing project goals, breaking down what needs to be created as WBS and attempted to negotiate the timelines and cost estimate for the project.
- Write detailed requirement for System Enhancement and making high-level flow charts.
Environment: SOA, Rally Agile planning tool, HP Quality Center, Rational RequisitePro, MS Visio, MS Word, MS Excel, MS PowerPoint, IBM Web sphere and SharePoint 2010, RM Track - Bug tracking, XML
Confidential, Boston, MA
Data Analyst
Responsibilities:
- Documented the existing the transactional system using ERWIN.
- Prepared the reports that are possible with the existing data and demonstrated to the managers in the JAD sessions, with slicing and icing options
- Prepared BRD / mapping documents based on the GAP analysis from the reporting requirements to the existing data in ODS.
- Prepared the Change data capture document for the additional data requirements
- Developed a dimension models using the facts and the dimensions and the Key performance indicator using ERWIN
- Used unified modeling language (UML)- use cases to create artifacts for the reporting related deliverables
- Prepared the ETL design for the dimension models
- Defined aggregations, partitions for the data model
- Created the ETL test specifications and test cases
- Tested the BI reports and done the user acceptances.
Environment: Oracle 11g, MS SQL 2005, Informatica, Cognos, Rational tools and MS Project
