Juan José Rojas Duarte
Montes De Oca, San José,AR
Summary
Statistician with 3+ years of experience working with knowledge in data warehousing, exploratory data analysis, data cleaning and transformation using tools like SQL, R and Python. Also familiarized with cloud environments like Google Cloud to be able to manipulate big volumes of data, automate processes to generate reports, among other tasks. Dedicated and hard working person, detail oriented, with great communication skills and always looking forward to learn new things.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Advanced Data Analyst
Growth Acceleration Partners
10.2020 - Current
- Identified, analyzed and interpreted trends or patterns in complex data sets within Google Cloud Platform environment.
- Utilized data visualization tools like Tableau to effectively gain business insights.
- Used statistical methods to analyze data and generate useful business reports.
- Extract and clean raw data with SQL/Hive in order to prepare it for automation.
- Maintenance of automation code in PySpark, used to generate A/B testing reports for marketing campaigns and implement new improvements as needed.
Data Analyst Intern
Instituto Nacional De Estadística Y Censos
03.2019 - 12.2019
- Performed ad hoc data investigations analysis as necessary.
- Worked with data of employment and household surveys and get measures of variability using R, in order to migrate from SPSS.
- Establish comparisons between R and SPSS outputs, to ensure data quality.
- Created user guide explaining in detail how to calculate measures of variability using R.
Education
Bachelor of Science - Statistics
Universidad De Costa Rica
San José12.2020
Skills
- Python Programming
- Data Quality Assessment
- Predictive Analytics
- Data Wrangling
- Process Improvement
- SQL
- R Programming
- Spark Computing
Certification
- Tableau Desktop Specialist - Feb 2022
- Coursera Specialization: Python for Everybody 2020
- Coursera Specialization: Data Science: Foundations using R 2020
Languages
Spanish
English
Timeline
Advanced Data Analyst
Growth Acceleration Partners
10.2020 - Current
Data Analyst Intern
Instituto Nacional De Estadística Y Censos
03.2019 - 12.2019
Bachelor of Science - Statistics
Universidad De Costa Rica
- Tableau Desktop Specialist - Feb 2022
- Coursera Specialization: Python for Everybody 2020
- Coursera Specialization: Data Science: Foundations using R 2020
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