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I am a results-driven software engineer specialized in Python, JavaScript, web, and AI technologies. I focus on building high-quality user experiences and comprehensive business solutions with a strong background in financial systems development, automation, and data integration. I have a proven track record leading development teams, architecting databases, and optimizing data consistency using Agile methodologies. Currently, I am a Tech Lead Architect at Virtualmex S.A. de C.V., where I develop integrated financial and operational management systems incorporating modules like accounting, payroll, CRM, and ERP. My experience also includes roles in government institutions and freelance web development, making me a well-rounded professional in software architecture and development.…I am a results-driven software engineer specialized in Python, JavaScript, web, and AI technologies. I focus on building high-quality user experiences and comprehensive business solutions with a strong background in financial systems development, automation, and data integration. I have a proven track record leading development teams, architecting databases, and optimizing data consistency using Agile methodologies. Currently, I am a Tech Lead Architect at Virtualmex S.A. de C.V., where I develop integrated financial and operational management systems incorporating modules like accounting, payroll, CRM, and ERP. My experience also includes roles in government institutions and freelance web development, making me a well-rounded professional in software architecture and development.

Esteban Marquez

Web Developer, Programmer, Developer, +2

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I am a results-driven software engineer specialized in Python, JavaScript, web, and AI technologies. I focus on building high-quality user experiences and comprehensive business solutions with a strong background in financial systems development, automation, and data integration. I have a proven track record leading development teams, architecting databases, and optimizing data consistency using Agile methodologies. Currently, I am a Tech Lead Architect at Virtualmex S.A. de C.V., where I develop integrated financial and operational management systems incorporating modules like accounting, payroll, CRM, and ERP. My experience also includes roles in government institutions and freelance web development, making me a well-rounded professional in software architecture and development.…I am a results-driven software engineer specialized in Python, JavaScript, web, and AI technologies. I focus on building high-quality user experiences and comprehensive business solutions with a strong background in financial systems development, automation, and data integration. I have a proven track record leading development teams, architecting databases, and optimizing data consistency using Agile methodologies. Currently, I am a Tech Lead Architect at Virtualmex S.A. de C.V., where I develop integrated financial and operational management systems incorporating modules like accounting, payroll, CRM, and ERP. My experience also includes roles in government institutions and freelance web development, making me a well-rounded professional in software architecture and development.

Available to hire

I am a results-driven software engineer specialized in Python, JavaScript, web, and AI technologies. I focus on building high-quality user experiences and comprehensive business solutions with a strong background in financial systems development, automation, and data integration. I have a proven track record leading development teams, architecting databases, and optimizing data consistency using Agile methodologies.

Currently, I am a Tech Lead Architect at Virtualmex S.A. de C.V., where I develop integrated financial and operational management systems incorporating modules like accounting, payroll, CRM, and ERP. My experience also includes roles in government institutions and freelance web development, making me a well-rounded professional in software architecture and development.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Tech Lead Architect at Virtualmex S.A. de C.V

February 1, 2025 - Present

Leading the development of a comprehensive financial and operational management system with integrated modules for accounting, payroll processing, CRM, and ERP using Python, Django, and React. Implementing Business Intelligence and Business Management solutions using Python, Pandas, and Django Rest Framework. Building data automation workflows with Celery for financial data processing and reports. Architecting PostgreSQL database solutions for scalable enterprise applications and utilizing AWS and Cloudflare for deployment and data storage.

Junior Software Architect at Centro Nacional de Cálculo (CENAC) – Instituto Politécnico Nacional

December 1, 2024 - August 27, 2025

Led development and enhancement of critical modules for INTRANETSIG@ and SIG@ systems focusing on software architecture and performance. Implemented Budget Allocation modules with automated validation, request registration, and mass data loading. Developed SICOP-SIG@ Comparison module for cross-system data integration and validation, optimizing data consistency. Improved budget report modules with intelligent monitoring systems. Enhanced institutional budget management efficiency through standardized formats, automated validations, and audit systems following Agile Development principles.

Freelance Web Developer at Self-employed

August 1, 2023 - August 27, 2025

Designed and developed custom web applications for clients using HTML, CSS, JavaScript, PHP, and MySQL. Created responsive front-end solutions ensuring cross-browser compatibility and database-driven applications.