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Andrés Felipe Barrera Naranjo
From Colombia 11:35 AM (GMT-05:00)
$10/hr or $1,300/yr

Active 1 hour ago


Member since Sep 2026

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Data professional

Data Analyst
Available for hire
Years of experience
2+ years
Experience level
Junior
Available for
Full-time, Part-time
Available from
29 Sep 2026
Download Resume / CV

I am a data professional with experience using Python for data analysis, automation, processing, visualization, and data quality. I enjoy solving complex problems through technology and continuous learning. I am looking for opportunities as a Data Analyst or Junior Data Engineer where I can contribute with my analytical skills while growing in data engineering, cloud technologies, and scalable data solutions.

Employment History

Junior Engineer at Engin.ai 2025 - 2026
- Developed Python-based solutions to automate data processing, analysis, and visualization workflows, generating dashboards and reports for KPI and performance monitoring. - Performed data quality analysis and validation on large-scale datasets, identifying inconsistencies, missing data, duplicate records, misclassifications, and other anomalies to ensure data accuracy and reliability. - Validated over 1.2 million vehicle detections across 10,000+ hours of monitoring data from 58 projects and 395 sites, performing systematic quality checks before delivery to clients. - Coordinated the preparation and quality assurance of 127 data batches across 3 datasets, producing 49,617 validated annotations to support data-driven AI model improvement and retraining. - Executed and monitored data processing pipelines in Linux-based environments using Google Cloud Platform, JupyterLab, and Gradio, supporting the processing of large-scale datasets. - Collaborated with international engineering teams and U.S.-based clients to clarify requirements, communicate findings, provide technical support, and follow up on project deliverables in English.
Intern at Cal y Mayor y Asociados S.C. 2023 - 2023
- Performed data quality control on traffic count datasets from 1,773 24-hour monitoring stations across the 14 departments of El Salvador, conducting data validation, consistency checks, anomaly detection, and error verification against infrastructure records and geolocation data. - Collected, organized, and consolidated transportation data on passenger volumes, routes, fares, and schedules from bus services near 15 train stations along the Mexico City–Querétaro and Querétaro–León corridors, supporting transportation data analysis.

Education

Diploma program MACHINE LEARNING AND DATA SCIENCE at Universidad Nacional de Colombia 2026 - 2026
Civil Engineering at Universidad Nacional de Colombia 2018 - 2023