Description

Senior Java Backend Developer with 12+ years of experience building scalable, reliable systems using Java 8+ and the Spring ecosystem (Spring Boot, Security, Data). Specialized in designing and delivering robust REST APIs, domain-driven architectures, and high-performance backend services in regulated and data-rich environments (healthcare, mobility/automotive, hospitality).

Strong expertise with JPA/Hibernate, relational databases (PostgreSQL, MySQL), and modern engineering practices such as TDD(JUnit, Mockito), Clean Architecture, and microservices. Hands-on experience with CI/CD pipelines (Jenkins, GitHub Actions) and containerization with Docker.

I have led migrations from legacy monoliths to modular, maintainable service architectures, improving scalability, performance, and long-term sustainability. In addition to development, I deliver technical leadership through mentoring and corporate Spring Boot training programs.

Official JetBrains Content Creator and creator of the YouTube channel *Programando en Java* (20K+ subscribers, 1.6M+ views), combining deep technical expertise with strong communication skills.

Industry field of expertise

Languages

Spanish
Native or bilingual
English
Fluent
German
Fluent
French
Basic

Workplace preferences

Can work on-site

Berlín (up to 30km)

Fresenius Group
Senior Java Developer
May 2022 - February 2024 (1 year and 10 months)
Berlin, Germany
As a Senior Java Software Engineer at Curalie, I led the development of innovative technological solutions to drive the company's health-focused platforms. My contributions spanned various facets, from design and implementation to the continuous optimization of code. Actively participated in an agile and collaborative work environment, incorporating reactive principles to enhance responsiveness and scalability.
Java Spring Boot Spring Security Spring Data Spring Cloud
Programando en Java
Freelance
March 2022 - Today (4 years and 4 months)
Berlin, Germany
YouTube: https://www.youtube.com/channel/UC9NOIj8jphmaPLEa2ufG_hA

web: https://programandoenjava.com
Brokokoly
Founder
February 2021 - February 2022 (1 year)
Berlin, Germany
As a single entrepreneur I have been in charge of everything related to the business, from marketing, product development, bookkeeping, customer service and closing partnerships with large companies such as Lieferando or Rewe. Platform for vegans and vegetarians where you can order products from online supermarkets, delivery services or online stores generated more than, 27000€ in revenue.