Hi!, I'm
Sergio Navarrete
Python developer crafting web apps, APIs, and data tools.
I work with Django, FastAPI, Flask, and Pandas — always aiming for simple and effective solutions.
Experience
Where I've worked and what I've done.
IT Business Consultant / Backend Developer at HP Inc.
Maintain and extend internal REST APIs by delivering new endpoints and improving SQL query performance. Built ETL workflows with SSIS, Python, and Pandas to consolidate and migrate Excel-sourced data into database tables while validating data integrity. Improved relational schemas, indexing, and query execution plans for business reporting workloads. Developed Python automations and data-aggregation workflows that reduced manual reporting work for business teams.
Software Developer Intern at HP Inc.
Designed and implemented REST APIs from scratch with token-based authentication, focusing on performance and maintainability. Optimized relational database queries for critical internal endpoints. Built Python automation scripts to replace manual data workflows and engineered Pandas pipelines to parse, validate, and export high-volume structured data into Excel reports.
Software Developer Intern at Bosch
Developed and maintained automated tests for critical frontend workflows, improving defect detection and reducing regression risk. Collaborated with development teams to expand test coverage across core UI components.