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Santiago Serrano Ortiz

@santiagoserranoortiz

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Software engineer at UniWheels building carpooling systems and an ML-powered school analytics platform.

Colombia

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At UniWheels, I architected and shipped five Laravel microservices and a FastAPI machine-learning service, deployed on Azure. I also built the React Native app and improved route-matching query time from 312 ms to 17.8 ms.

As a freelance software engineer for Aspaen Gimnasio Saucará, I built and maintain an ICFES Saber 11 analytics platform used by teachers and students. Its score-forecasting model achieved a mean absolute error below 6.9 points on a 500-point scale.

I’m studying Systems Engineering at Universidad Autónoma de Bucaramanga, where I have the highest GPA in my program. I’m comfortable taking features from database schema through production, and I use AI-assisted development workflows.

Experience

Work history, roles, and key accomplishments

Current

Founder & Lead Engineer

Current

UniWheels

Aug 2026 - Present (3 months)

Architected and shipped 5 Laravel microservices plus a FastAPI ML service behind an nginx API gateway, deployed with Docker Compose on Azure. Built geospatial route matching on PostgreSQL/PostGIS and delivered a React Native mobile app.

Laravel PHP fastAPI Python PostgreSQL PostGIS Docker Nginx Azure React Native TypeScript JWT Redis Wompi Resend GitHub Actions Pest Pytest

Current

Freelance Software Engineer

Current

Aspaen Gimnasio Saucará

Nov 2025 - Present (1 year)

Built and maintain, as sole developer, the school's ICFES Saber 11 analytics platform, used in production by ~20 teachers and ~80 students. Developed a Python/Streamlit dashboard over PostgreSQL with rankings, cohort statistics, and Excel import/export.

Python Streamlit PostgreSQL Supabase scikit learn Machine Learning Excel Role based Access PBKDF2 OpenAI API

Education

Degrees, certifications, and relevant coursework

Universidad Autónoma de Bucaramanga

Bachelor of Science, Systems Engineering

Grade: 4.88/5

Pursuing a Bachelor of Science in Systems Engineering with a GPA of 4.88/5, the highest in the program. Capstone project: UniWheels, presented to the university community.

Aspaen Gimnasio Saucará

Bilingual International Academic High School Diploma, High School Diploma

Activities and societies: Member of departmental volleyball team; built a voting website for school week.

Earned a Bilingual International Academic High School Diploma. Received the Galardón Aspaen 2021 as top graduate out of ~270 students, with ICFES Saber 11 score of 487/500.