Senior Java Backend Developer

Description

Job Summary: Babel is seeking a Senior Java Backend Developer to apply their technical expertise and services toward accelerating the digital transformation of major enterprises and public institutions. Key Highlights: 1. Join an innovative and expanding team with a shared mission 2. Enhance your talent in a highly collaborative work environment 3. Be part of an exciting strategic plan offering professional growth We are One Team. We make it happen. We are Unstoppable. Babel is a multinational technology consultancy specializing in applying its services and technological expertise to accelerate the digital transformation of its clients — major enterprises and public institutions. What is our strategic plan? We look toward the future! Our HyperSpace 2029 strategic plan promises an exciting journey full of opportunities for professional growth and development. Achieving €1 billion in revenue is a challenge we are confident we will overcome together — through collaboration and the talent of our people — writing yet another success story as one team. What are we looking for? Senior Java Backend Developer Academic Requirements and Experience* Bachelor’s degree in Computer Science, Information Systems, Computing, or related fields. * Minimum 5 years of experience as a backend developer with a focus on microservices. * Prior experience in the financial sector is desirable. * English: Intermediate level (able to read technical documentation and communicate effectively in work environments). * Courses or certifications in Java, DevOps, Cloud, or Agile methodologies (desirable). Technical Skills (must have) Java Language and Ecosystem* Java 8 or higher. * Exception handling, memory management, Garbage Collection, and Heap optimization. * Concurrency and multithreading. * Object-oriented programming and SOLID principles. * Advanced debugging techniques. Frameworks and Libraries* Spring Boot, Spring Core (dependency injection / Inversion of Control – IOC). * Spring Data JPA / Hibernate. * Spring Security and Spring Cloud (desirable). RESTful APIs and Services* Design, development, and consumption of RESTful APIs. * Swagger / OpenAPI. * Postman or SoapUI. Containers and Orchestration* Docker (Dockerfile creation). * OpenShift (practical usage and deployment, not just theoretical knowledge). * Kubernetes (basic to intermediate level). DevOps and CI/CD* Experience with Jenkins, GitLab CI/CD, or GitHub Actions. * Configuration of custom pipelines. Monitoring and Logging* Tools such as Prometheus, Grafana, ELK Stack (ElasticSearch, Logstash, Kibana). Security* Implementation of authentication protocols such as OAuth 2.0 and JWT. * Best practices for secure exception handling. Testing* Unit and integration testing using JUnit and Mockito. Architecture* Experience in microservices architecture. * Knowledge of hexagonal or layered architecture. Methodologies* Experience working in Agile environments (Scrum). Desirable (nice to have)* Experience with NoSQL databases (e.g., MongoDB or similar). * Experience with messaging systems (e.g., Kafka, RabbitMQ). * Experience building projects from scratch. Work Modality: Primarily remote; occasional office visits may be required, but these are very infrequent. The search is open nationwide. What do we offer? Babel, the great way to achieve the success. Do you want to join an expanding, committed, and innovative team that makes history every day? At Babel, we support you on your path to success. We believe in people’s talent and aim to enhance it by offering an outstanding collaborative and supportive work environment. Working at Babel is much more than working for a company — it means joining a team united by a shared mission and a values-driven corporate model. In addition,* 100% Payroll Scheme * SGM Mayores, SGM Menores * Remote Work Support * Superior Corporate Benefits Are you ready to take on the challenge? We’re waiting for you!*In compliance with current data protection regulations, we inform you that the data controller of your personal information is GRUPO BABEL, which will process your data for internal personnel selection processes, based on your consent via submission of your curriculum vitae and implementation of pre-contractual measures.**Your data may be shared with entities belonging to the GRUPO BABEL for the purpose of offering you the position best suited to your professional profile, as well as with other entities as required by law.**You may access, rectify, and erase your data, as well as exercise other rights granted under data protection legislation, by contacting* *data.protection@babelgroup.com.* *Additional information regarding data protection is available in our* *privacy policy* *.