Oscar Rojas
Developer & Physician
Development and optimization of solutions at the intersection of technology and health sciences
About Me:
I am a Software Developer and Physician. My journey into technology began by identifying problems in clinical workflows that I could solve with code. That experience gave me a unique perspective: I understand both end-user needs and the technical architecture required to create solutions.
I work in areas ranging from data science, frontend and backend web development to mobile and desktop applications. I am passionate about creating scalable and maintainable products. What I enjoy most is that moment when an elegant technical solution solves a real problem that affects people's lives.
My medical background gives me an advantage in healthtech, data science, and critical systems projects, where I combine analytical rigor with user empathy. I understand that behind every feature there are people who need everything to work correctly.
Languages: Spanish (Native) | English (Intermediate)
What I Do
Technical Expertise & Services
Data Science & ML
Data transformation into insights with analysis, ML models, and visualization
- ▸ Data cleaning & preparation
- ▸ Data analysis & insights
- ▸ ML model training
- ▸ Data visualization
Backend Development
Robust APIs and scalable server architectures with Python
- ▸ RESTful API development
- ▸ Database design & optimization
- ▸ ORM implementation
- ▸ Authentication & security
Mobile & Desktop Apps
Cross-platform applications with native performance and seamless experiences
- ▸ iOS and Android
- ▸ Desktop Applications
- ▸ Cross-platform solutions
- ▸ Native features integration
Frontend Development
Modern, responsive web interfaces with cutting-edge frameworks
- ▸ Static site generation
- ▸ Dynamic applications
- ▸ Responsive designs
- ▸ Integration with external services
DevOps & Deployment
Production-ready deployments with automated CI/CD pipelines
- ▸ Docker containerization
- ▸ CI/CD with GitHub Actions
- ▸ VPS configuration & management
- ▸ SSL certificates & domain setup
Integrations & Services
Third-party services integration for extended functionality
- ▸ BaaS platforms and Headless CMS
- ▸ Authentication services
- ▸ Email and messaging services
- ▸ External API integration
Featured Projects
A selection of my best and recent work
owlwo
Secure password management, notes, tokens, server access, and database access. Random password generation with AES-256 encryption. Offline, secure synchronization, advanced tagging, and cross-platform support.
Heart Attack Prediction
AI-based cardiac risk prediction system. Clinical data and biomarker analysis to predict the probability of cardiac events with high accuracy.
Booking Management System
Complete system for managing tennis academy reservations, with modern admin panel and robust API. Includes turn management, appointments, courts, and users with advanced features.
ISG Iadov
Flutter application to manage and analyze group satisfaction surveys using the IADOV model, with metrics calculation such as ISI and ISG, and export to PDF/CSV.
Luna de Plata
Modern web catalog for the 'Luna de Plata' jewelry store, featuring artisan products with real-time search, advanced filters, and content management through Sanity CMS.
owlwo
Secure password management, notes, tokens, server access, and database access. Random password generation with AES-256 encryption. Offline, secure synchronization, advanced tagging, and cross-platform support.
Heart Attack Prediction
AI-based cardiac risk prediction system. Clinical data and biomarker analysis to predict the probability of cardiac events with high accuracy.
Booking Management System
Complete system for managing tennis academy reservations, with modern admin panel and robust API. Includes turn management, appointments, courts, and users with advanced features.
ISG Iadov
Flutter application to manage and analyze group satisfaction surveys using the IADOV model, with metrics calculation such as ISI and ISG, and export to PDF/CSV.
Luna de Plata
Modern web catalog for the 'Luna de Plata' jewelry store, featuring artisan products with real-time search, advanced filters, and content management through Sanity CMS.
Experience and Education
Professional Experience
2023 - Present
Independent Software Developer
Development of web and mobile applications with a focus on health technology, data analysis, and cross-platform solutions.
- ▸ Data analysis and machine learning applied to the health sector
- ▸ Front-end applications with Astro, React, and Next.js
- ▸ Back-end applications with FastAPI and Django
- ▸ Mobile and desktop application development with Flutter
- ▸ Implementation of CI/CD, Docker, and production deployments
2021 - 2022
General Practitioner
Arnaldo Milián Castro University Medical Hospital
Clinical practice with a focus on comprehensive care and multidisciplinary work. This experience developed analytical skills, decision-making under pressure, and patient-centered thinking.
Academic Education
2025
Postgraduate in Data Science
University of Barcelona
Specialization: Applications in Biology and Medicine with Python and R
2014 - 2021
Doctor of Medicine (M.D.)
University of Medical Sciences of Villa Clara
Comprehensive training in health sciences with emphasis on diagnosis, clinical analysis, and scientific methodology.
Continuous Training
Software Development
- ✓ Online Development and Programming Course Platform Hola Mundo Academy
- ✓ Continuous self-taught training Modern frameworks, software architecture, DevOps