Senior Java Backend Developer

Description

Job Summary: Babel is seeking a Senior Java Backend Developer to apply their technological expertise in accelerating the digital transformation of major enterprises and public institutions. Key Highlights: 1. Join an expanding, committed, and innovative team 2. Enhance your talent in a collaborative work environment 3. Become part of a team united by a shared mission and values 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 strategic plan, HyperSpace 2029, 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 Systems, Computer Engineering, Computer Science, 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 theoretical only). * 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 (MongoDB or similar). * Experience with messaging systems (Kafka, RabbitMQ). * Experience building projects from scratch. Work Modality: Primarily remote; office attendance is required only occasionally. The search is open nationwide. What do we offer? Babel, the great way to achieve 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 of people united by a shared mission and a values-driven corporate model. Additionally,* 100% Payroll Scheme * Major SGM, Minor SGM * Remote Work Support * Enhanced 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 controller of your personal data is GRUPO BABEL, which will process your data for internal personnel selection processes, based on your consent through submission of your curriculum vitae and 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 those legally mandated.**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* *.