Marilin Polanco

Business Data Analyst at POCN
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Location
New York City Metropolitan Area

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Experience

    • United States
    • Hospitals and Health Care
    • 1 - 100 Employee
    • Business Data Analyst
      • Oct 2022 - Present
    • Data Analyst
      • Apr 2020 - Feb 2022

      * Used statistical methods to analyze data and generate useful business reports and models. * Performed competitor bench-marking analysis to identify manufacturing savings opportunities and potential product enhancements. * Produced monthly reports using advanced Excel spreadsheet functions. * Analyzed key aspects of business to evaluate factors driving results and summarized into presentations. * Collected data to evaluate and improve operations, target current business conditions and forecast needs. * Monitored daily cash discrepancies, inventory shrinkage and drive-off. * Interacted well with customers to build connections and nurture relationships. * Compiled, evaluated and reviewed engineered data for internal system. Show less

    • Hospitals and Health Care
    • 100 - 200 Employee
    • Data Analyst
      • Mar 2017 - Sep 2020

      * Researched and resolved issues regarding integrity of data flow into databases. * Improved the existing reporting dashboards and the functionality. Reduced data processing time by 90%. * Participated in requirements meetings and data mapping sessions to understand business needs. * Identified and documented detailed business rules and use cases based on requirements analysis. * Employ Tableau best practices formulating reports, developing SQL queries, and creating advanced Tableau dashboards. * Synthesized current business intelligence data to produce reports and polished presentations, highlighting findings and recommending changes in Tableau. * Developed tables, views and materialized views using SQL. * Evaluated large datasets for quality and accuracy. * Generated medical reports on patient admissions, treatment and discharge for disbursement to various departments. * Performed regular quality and validation assessments on patient data to verify accuracy. * Modified existing software to correct coding errors, upgrade interfaces and improve overall performance. * Optimized Tableau BI reporting capabilities for secure server environment. * Defined governance roles and responsibilities to establish clear accountability for stewardship of principal information assets. * Established and executed governance implementation roadmap. * Determined root cause of data quality errors and recommended long-term solutions. * Assists in the operationalization of data governance strategies. * Collected data, research governance based on hypotheses and directions. * Defined performance indicators and quality metrics to maintain compliance with governing policies, standards and adoption requirements. * Collaborates with data governance/stewardship team members to derive trends, conclusions and recommended remediation actions based on the analyses. Show less

    • United States
    • Hospitals and Health Care
    • 400 - 500 Employee
    • Enterprise Data Warehouse QA Analyst (ETL /Database Tester)
      • Jun 2014 - Feb 2017

      • Developed SQL queries /scripts to validate the data such as checking duplicates, null values, truncated values, incremental value and ensuring correct data aggregations • Skilled in Analysis, Design and Developing test cases for SQL objects verification and testing. • Involved in system testing, integration testing, and functional testing throughout the project in various Iterations/Sprints • Worked on flat files and excel sheet data sources to validate our target table in our databases • Exposure to systems including: Salesforce, Medecision, McKesson, eChamp, QNXT, and Enterprise Data Warehouse. • Strong understanding of Software Development Life Cycle (SDLC) methodologies for both waterfall and Agile delivery. • Worked on issues with migration of data from development to QA-Test Environment • Validated the data of Tableau reports by developing SQL queries in SQL Management against staging tables and ODS (Operational Database Systems) based on Functional Requirements • Interacted with project managers, business analysts and developers in requirements analysis, design reviews, testing and documentation for application developed in Agile environment • Defects identified in testing environment are communicated to the developers using TFS • Prepared daily status reports with details of executed, passed, and failed test cases and defect status Show less

    • United States
    • Advertising Services
    • 1 - 100 Employee
      • Oct 2010 - Apr 2013

      • Interacted with project managers, business analysts and developers in requirements analysis, design reviews, testing and documentation for application developed in Agile environment• Worked with lead QA engineer and software developer engineers as needed to resolves problems• Directed employees to ensure highest standard of quality so that the organization meets both internal and external requirements – Ensured that all quality standards are met by all departments, by explaining the importance of maintaining quality standards• Chaired scrum/defect review meetings with project team stakeholders to discuss issue found during testing and their current statuses. Show less

      • Oct 2010 - Jan 2011

      • Interacted with all departments and provided clear feedback on active projects status• Created job numbers for new projects and communicated these numbers to teams for billing time• Maintained timesheets on a weekly basis and assisted PMs with running reports with EAS reporting

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