FFFreelancer profile translated to English.
Back to original languageAbout Fernando
Java & Spring Backend Developer | Database Specialist
I am a Java backend developer with solid experience in Spring Boot and deep knowledge of MySQL and PostgreSQL. I specialize in building robust and efficient RESTful APIs, as well as scalable and reliable software solutions.
If you are looking for an expert to develop the business logic of your application, integrate databases, or improve the backend infrastructure of your projects, my experience guarantees quality code and functional solutions.
Spanish
Native or bilingual
English
Conversational
Can work on-site
Valencia (up to 50km)
Experience
- DISIDBackend DeveloperDIGITAL AND ITMarch 2026 - June 2026 (3 months)Valencia, Spain▸ Development of RESTful APIs with Java and Spring Boot following advanced hexagonal architecture patterns.▸ Implementation and deployment of endpoints in a real production environment, collaborating in a multidisciplinary team (Frontend, Backend, QA).▸ Modeling and management of PostgreSQL databases with schema version control using Flyway.▸ Automation of processes with agile methodologies (Scrum), Git, and GitLab CI/CD.▸ Technical documentation of APIs using Swagger/OpenAPI.
- SabartechWeb DeveloperBIOTECHMay 2025 - Today (1 year and 2 months)Valencia, SpainDesign a database in Postgre SQL, design the scripts for data insertion from .csv files.Create a Java program to retrieve data from JSON files from a REST API, and insert them into the database.Design a web page with Java Spring Boot, HTML, CSS, and JavaScript, for clients to view their results.
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