Julián Cossio Flórez
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Julián Cossio Flórez

Julián Cossio Flórez

About

Detail

Data Engineering | BI | ML | Data Science
Medellín, Antioquia, Colombia

Contact Julián regarding: 

work
Full-time jobs
Starting at USD1.42K/month
Flexible work
Starting at USD14/hour

Timeline

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Résumé

Jobs verified_user 0% verified
  • C
    IT Consultant (Business Intelligence)
    Cognito Consulting,
    Jul 2023 - Current (1 year 10 months)
    Development and support for ETL processes focused on Business Intelligence. Two relevant projects: reconnecting business reporting from a new data model (SURA SA), and the deployment of the operational reports for the new data CORE (SURA SA). Additionally, I employed the Scrum methodology to enhance project management efficiency, conducting quality control tests prior to product certification to ensure high standards. I also utilized Postman occasionally for data collection from the business application, which contributed to the overall effectiveness of the reporting processes. Furthermore, I leveraged programming languages such as Python (including libraries like NumPy and Pandas) and occasionally R for data processing tasks, which enhance
  • U
    Teaching Assistant
    Universidad EIA,
    Jul 2023 - May 2024 (11 months)
    • Digital Control Labs and Tutoring
  • P
    Data Science Intern
    PROTECCION SA,
    Jan 2023 - Jul 2023 (7 months)
    Provided support in projects related to data science and analytics, as well as support and advice to the community at large. Two relevant projects included the development of a prediction model for the favorability of legal processes and assistance in constructing a dashboard for its analysis in Power BI, along with the ETL process for obtaining and making available information about the DAG's (AirFlow) in production. Additionally, I adhered to company standards by conducting unit tests to verify code quality, ensuring the reliability and accuracy of the data science projects I supported. Furthermore, I engaged in projects that involved cloud management for big data processes, enhancing the scalability and efficiency of data handling within
  • S
    Personalized Academic Tutor
    Self Empoyed
    Feb 2022 - Current (3 years 3 months)
    • Provided personalized tutoring in Mathematics, Physics, and Programming Fundamentals, adapting teaching methods to meet individual student needs. • Additionally, I taught classes on basic databases using SQL and Python, incorporating libraries such as NumPy, Pandas, and Matplotlib to enhance students' understanding of data manipulation and analysis.
Education verified_user 0% verified
  • IBM
    Full Stack Software Developer Professional Certificate
    IBM
    Jan 2025 - Current (4 months)
  • IBM
    Data Engineering Professional Certificate
    IBM
    Aug 2024 - Mar 2025 (8 months)
  • IBM
    Machine Learning Professional Certificate
    IBM
    Feb 2023 - Jun 2023 (5 months)
  • IBM
    Introduction to Data Science Specialization
    IBM
    Jan 2023 - Mar 2023 (3 months)
  • E
    B.S. Mechatronics Engineering
    Escuela de Ingeniería de Antioquia (EIA)
    Jan 2019 - Jul 2024 (5 years 7 months)
  • Colegio corazonista
    Academic High School
    Colegio corazonista
    Jan 2007 - Dec 2018 (12 years)
Projects verified_user 0% verified
  • Seguros SURA Colombia
    Reconnecting business reporting from a new data model
    Seguros SURA Colombia
    Nov 2023 - Sep 2024 (11 months)
    The company changed its database engine, necessitating the migration of all data to the new schema while ensuring the correct functioning of reports and dashboards. Through the application of agile methodologies, I implemented a cycle of coding, testing, and reviewing each report generated, which enhanced the overall quality and reliability of the reporting process. Additionally, I utilized quality control testing to validate the accuracy of the data migration, and I applied principles of Scrum to facilitate team collaboration and project management. My experience with DevOps practices further streamlined the deployment of the new reporting system, while Python was leveraged for internal data validations. Lastly, I conducted unit tests to v
  • P
    ETL process for obtaining and making available information about the DAG’s (AirFlow) in production
    PROTECCIÓN S.A.
    Apr 2023 - Jul 2023 (4 months)
    In my role, I was responsible for creating an ETL pipeline to identify new projects based on Airflow, enabling effective monitoring of the tool's growth within the company. I conducted quality control tests to validate the information before it was displayed on the dashboards, ensuring the quality of the data presented and enhancing the reliability of the information used in decision-making processes. Additionally, I utilized various libraries, including NumPy, alongside Pandas, BigQuery APIs, and SQL connectors, to facilitate efficient data processing and improve the overall functionality of the ETL pipeline.