You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Isael De Jesús Quintero FuentesID

Isael De Jesús Quintero Fuentes

Data Analyst & Python Developer | ETL · SQL · Automation

€277/day
Barranquilla, CO
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Isael De Jesús

Data analyst and Python developer with over 30 years of experience in business and administrative operations. I combine real business acumen with technical automation to eliminate manual work, ensure data quality, and generate actionable reports.

I work with Python, pandas, SQL (Server, Oracle, DB2), and ETL on real data — not class projects. Among my active projects: a scraper with an AI model for analyzing Barranquilla's real estate market (ia-viviendas-baq) and clinical data architecture under the FHIR standard for the health sector in Colombia.

Immediately available in full European hours (CET/CEST).
No intermediaries — direct work and on-time delivery.
  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • QuinCon TIC
    Data & Automation Consultant
    SOFTWARE PUBLISHING
    August 2025 - Today (10 months)
    Barranquilla, Colombia
    •Development of Python scripts for data ingestion, cleaning, and consolidation from multiple sources (Excel, CSV, SQL Server)
    •Design of ETL pipelines with cross-validation, duplicate detection, and anomaly correction
    •Automation of management reports — reduction of manual processing from hours to minutes
  • Alemsys
    Commercial Executive — Technology and Data
    TECH
    March 2003 - December 2010 (7 years and 9 months)
    Barranquilla, Colombia
    • Marketing of technological solutions: Blade servers, infrastructure, and corporate databases.
    • Management of enterprise clients focusing on data storage and processing solutions.
    • First contact with SQL environments and production database architectures.
    *
    Customer Service Customer Service Onboarding Infrastructure Customer Relationship Management (CRM)
  • Molino Arrocero Vergara SAS
    Operations, Data, and Information Integrity Manager
    RETAIL (SMALL BUSINESS)
    May 1999 - August 2025 (26 years and 3 months)
    Barranquilla, Colombia
    Operational Coordinator / Administrative Support 2003 - 2025

    Coordination of administrative and operational processes.
    Inventory, accounts receivable, and information flow control.
    Preparation and tracking of Excel reports for decision-making.
    Customer service and administrative information management.
    Microsoft Excel Data Analysis Data Visualization Customer Service Inventory Management

Recommendations

Be the first to recommend Isael De Jesús

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Certifications

  • Python Certified
    FreeCodeCamp
    2026
    Extract, Transform, Load (ETL) Data Analysis Automation Pandas Playwright Microsoft Excel Numpy Python SQL TensorFlow

Skill set

Categories