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David Fernando Esparza Esparza

@davidfernandoesparza

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Senior Engineer specializing in Data Engineering, ETL pipelines, and scalable full-stack architecture.

Mexico

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What I'm looking for

I’m looking for a role where I can architect scalable systems and own end-to-end Data Engineering—ETL pipelines, event-driven automation, and performance optimization—while collaborating in agile teams and leading modernization efforts.

I’m a Senior Engineer with over 7 years of experience in full-stack architecture, system modernization, and data automation. I architect scalable solutions using Python, SQL, and AWS, with a technical focus on Data Engineering, ETL pipelines, and Machine Learning. I thrive on optimizing distributed systems, automating data-heavy workflows, and driving technical leadership in agile environments.

Most recently, I built an automation system with Python and Pandas to extract and transform academic datasets into standardized protocol documents. In past roles, I led portal modernization with React and Astro, managed high-availability Python/Django systems using Kubernetes on AWS, integrated Apache Kafka for reliable event-driven streams, and restructured Elasticsearch/MeiliSearch clusters to reduce query latency.

Experience

Work history, roles, and key accomplishments

Current

Data & Automation Developer

Current

Independent Data Engineering Projects

Jan 2026 - Present (5 months)

Automated ETL pipelines to extract academic datasets using Python and Pandas, transforming raw variables into standardized protocol documents.

Python Pandas ETL Data Extraction data transformation Data Automation Protocols

Full Stack Developer

Iad México

Jul 2021 - Sep 2025 (4 years 2 months)

Led redesign of a core portal using React and Astro, using analytics and runtime performance data to improve rendering speed and responsiveness. Managed high-availability Python/Django systems on AWS with Kubernetes and integrated Kafka for reliable event-driven microservices communication.

React Astro Python Django AWS S3 EC2 Kubernetes Kafka Elasticsearch Meilisearch

Software Developer

BOZ

Sep 2019 - Jun 2020 (9 months)

Completed migration of legacy corporate systems to modern architectures by redesigning relational SQL structures and RESTful APIs to improve data retrieval efficiency. Focused on maintaining system integrity throughout the migration.

SQL RESTful APIs System migration backend architecture Performance Optimization Legacy Modernization

Software Developer

Global Hitss

Feb 2019 - Jun 2019 (4 months)

Developed a high-throughput ticketing web portal using C# .NET, coordinating within an agile team of 6 developers to deliver scalable enterprise features.

C#.NET Web Portals High Throughput Systems Agile Delivery Scalability Enterprise Software