Java backend developer

K-LAGAN; Barcelona; On-site; EUR 50,000 - 70,000; Full time

Benefits offered by this job

Team-building events

Barbecues

Tech coffees

Internal events

Summer Dinner

Christmas Dinner

Solidarity Day

Birthday leave

Childcare support

Mileage reimbursement

Language learning support

Job summary

K-LAGAN ищет Java Backend Developer для участия в международных проектах по логистике и системам автоматизации складов. Требуется опыт Java, Spring Boot и бэкенд‑разработки, знакомство с WMS/WCS и желание расти через технологические проекты в области складской логистики.

В обязанности входит разработка, тестирование и развёртывание сервисов на Java, работа с REST API и интеграциями, взаимодействие с Oracle/SQL, участие в код‑ревью и обеспечении качества, безопасности и производительности.

Qualifications

• Опыт backend‑разработки на Java.
• Опыт разработки REST API.
• Знание WMS/WCS или intralogistics систем приветствуется.

Responsibilities

• Разработка и тестирование бекенд‑приложений на Java.
• Интеграция WMS/WCS решений в логистические окружения.
• Проектирование и поддержка REST API и интеграций.
• Работа с базами данных Oracle и SQL.
• Поиск и устранение инцидентов, ошибок и проблем с производительностью.
• Разработка модульных и интеграционных тестов (JUnit, Mockito).
• Участие в код‑ревью и соблюдение лучших практик качества и безопасности.
• Сотрудничество с международными командами разработки, тестирования и управления проектами.
• Участие в установке, интеграции и вводе решений в эксплуатацию.

Skills

Java backend

Spring Framework

REST APIs

SQL databases

Git & IDEs

Testing (JUnit Mockito)

Agile (Scrum Kanban)

English communication

Travel readiness

Tools

Git

Gradle

IntelliJ IDEA

Eclipse

Oracle

SQL

Job description

Описание

At K-LAGAN, we are looking to bring on a Java Backend Developer to take part in international software development projects for logistics and intralogistics automation systems. We are looking for someone with experience in Java, Spring Boot, and backend application development, who is familiar with WMS/WCS environments and wants to continue growing through technology projects related to warehouse management and automation.

Задачи

• Develop, test, and implement backend applications and services in Java.
• Take part in developing and integrating WMS/WCS solutions for automated logistics environments.
• Design and maintain REST APIs and integrations between systems.
• Work with relational databases, mainly Oracle and SQL.
• Identify and resolve incidents, errors, and performance issues.
• Develop unit and integration tests using JUnit and Mockito.
• Take part in code reviews and apply development, quality, and security best practices.
• Collaborate with international development, testing, and project management teams.
• Take part in installing, integrating, and commissioning the developed solutions.

Требования

• Professional experience in backend development with Java.
• Knowledge of Java SE 17, Spring Framework, and Spring Boot.
• Experience developing and integrating REST APIs.
• Knowledge of WMS, WCS, or intralogistics systems.
• Experience with Oracle and SQL databases.
• Proficiency with Git, Gradle, IntelliJ IDEA and/or Eclipse.
• Experience with testing using JUnit and Mockito.
• Familiarity with agile methodologies (Scrum, Kanban) and tools such as Jira.
• Professional English to collaborate with international teams.
• Availability to travel according to project needs.

Будет плюсом

• Experience with Docker, Kubernetes, or Microsoft Azure;
• Knowledge of frontend technologies such as JavaScript, Vue, Angular, or React;
• Additional experience with .NET/C#;
• Knowledge of French;
• Previous experience in warehouse automation projects, internal transport systems, or integration of logistics solutions

Условия

• Permanent contract and a stable project.
• Participation in international intralogistics technology projects.
• Ongoing support and professional development.
• Careers and Training Department.
• Team-building events, barbecues, tech coffees, and internal events.
• Special events: Summer Dinner, Christmas Dinner, and Solidarity Day.
• Day off on your birthday.
• Support for childcare, mileage, and language learning.