Sebastian Aldana Velásquez

Sebastian Aldana Velásquez  new_releases

About

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Científico de Datos
Colombia
Contact Sebastian regarding: 
Flexible work
Starting at USD1.87k/hour

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Résumé

Jobs verified_user 0% verified
  • NICE
    Business Analyst
    NICE
    Feb 2024 - Current (2 years 5 months)
    -Meet with clients from various industries (banks, insurance companies, airlines, etc.) to gather project requirements. -Document all functional and technical requirements in a structured manner. -Coordinate with internal teams (developers, testers, project managers) to ensure proper implementation of requirements. -Manage communication between the client and the technical team. -Configure databases and analytical tools such as Tableau. -Analyze and optimize business processes to improve efficiency and productivity. -Analyze customer data models using Tableau and Oracle, tailoring insights and model applications to meet specific client needs and business objectives. -Interpret logical data models provided by Business Analyst leads and devel
  • Nub8
    Data Analyst public Remote experience
    Nub8
    Jun 2023 - Nov 2023 (6 months)
    Responsibilities: - Define the reporting structure in the Customer Success domain, implementing efficient data analysis methodologies making use of Power BI, Amazon QuickSight, Amazon Athena, Amazon Glue and Amazon S3. - Develop metrics and medium-term projections using advanced quantitative analysis techniques and statistical modeling. - Apply machine learning techniques to perform forecasting of various metrics, optimizing forecast accuracy and reliability. Achievements: - I created a Data Lake with AWS services that allowed automating the ETL of the Customer success area (AWS Lambda, Glue, Athena, Amazon QuickSight, etc). - Developed predictive metrics that improved medium-term forecast accuracy by approximately 25%, optimizing strategi
  • Waco Services
    BI Analyst public Remote experience
    Waco Services
    Apr 2023 - Current (3 years 3 months)
    Responsibilities: - Analyze business metrics using advanced data analysis techniques, identifying patterns and trends to inform strategic decisions. - Design and implement new financial metrics using statistical methodologies and quantitative modeling to improve financial performance evaluation. - Build the Business Intelligence (BI) model for management, integrating data sources, applying ETL transformations and developing interactive dashboards to facilitate informed decision making, making use of Power BI and Amazon S3. Achievements: - I automated business ETL in Power BI and AWS by developing a relational model, reducing processing time by approximately 200%. - Optimized business metrics analysis, increasing accuracy by approximately 2
Education verified_user 0% verified
  • Externado University
    BUSINESS ADMINISTRATOR
    Externado University
Projects (professional or personal) verified_user 0% verified
  • MetLife Colombia
    Organizational Impact Project at METLIFE COLOMBIA
    MetLife Colombia
    Jan 2020 - Jul 2020 (7 months)
    - It consisted in the construction of pillars of the culture of the Operations and Customer Service area in order to improve results and the work environment. It was possible to include this area within the corporate strategy.
Publications verified_user 0% verified
  • GREat
    Augurémonos (Artículo de la industria de los seguros en Colombia y el mundo)
    GREat
    Dec 2020 - Current (5 years 7 months)