Alejandro Martínez Valarino
Alejandro Martínez Valarino

Full Stack Developer

Open to offers · Member since 24 Aug 2026
Message
Location
Spain
Desired salary
Unspecified
Work preference
Hybrid
Experience level
Junior

About

Professional summary

I am a full stack developer with two years of experience building and delivering web products end to end. I develop REST APIs with Python, FastAPI, Django, Java, and Spring Boot, alongside React and TypeScript front ends.

I work with relational databases including PostgreSQL and MySQL, and I am comfortable designing scalable application architectures using layered services, hexagonal architecture, BFF patterns, and microservices.

I have hands-on DevOps experience deploying production applications on Linux VPS infrastructure using Docker, Docker Compose, Nginx, CI/CD pipelines, and cloud services. I maintain personal products in production, including monitoring, automated deployments, TLS, backups, and log rotation.

In my current role at Efipos, I have migrated a legacy Laravel platform to Django and React, developed a time-tracking PWA, and integrated external POS systems to automate operational data synchronization.

I hold a Master's degree in Big Data, Business Intelligence and Cloud Computing, completed with a 9.35/10 grade. I am a native Spanish speaker, bilingual in French after schooling in Belgium, and have C1 English certified through Cambridge CAE.

I am based in Spain and am open to remote opportunities across the EU. I enjoy building reliable, maintainable software products and working across backend, frontend, infrastructure, and integration challenges.

Skills

29 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Full Stack Developer Efipos

I led the migration of a legacy PHP/Laravel platform to a modern Python/Django and React stack, improving the product's scalability and maintainability.

I designed and delivered a time-tracking PWA using a BFF architecture with Java, Spring Boot, PostgreSQL, React, and React Native. I also built integrations with Hosteltáctil and Neron POS systems, automating data synchronization and eliminating manual order entry.

Education

Learning history

MasterD

Master's, Big Data, Business Intelligence & Cloud Computing

Completed a Master's program in Big Data, Business Intelligence and Cloud Computing with a final grade of 9.35/10. Coursework included AWS and cloud architecture, SQL, data analysis, and machine learning.

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