Backend Developer, Spring, Kotlin

This is a fully remote position, open to applicants in Spain.

📋 Description

• Engage in a large-scale Customs Management System that processes thousands of declarations daily.

• Design and develop contemporary backend services utilizing Spring Boot, Kotlin, and cloud-native technologies.

• Assume responsibility for technical solutions and actively participate in architectural decision-making.

• Work with advanced technologies such as Kubernetes, Docker, Kafka/RabbitMQ, and Microsoft Azure.

• Collaborate closely with international, cross-functional teams within an agile framework.

• Have the opportunity to influence engineering standards and enhance system reliability.

• Propel technical innovation and proactively share your ideas.

• Join a culture that emphasizes ownership and ongoing learning.

• Enjoy a high degree of flexibility and autonomy in tackling technical challenges.

⛳️ Requirements

• Significant experience with Spring Boot; Kotlin experience is preferred (or a willingness to learn).

• Strong understanding of relational databases (e.g., PostgreSQL, SQL Server), SQL, schema design, and ORMs like Hibernate / Spring Data JPA.

• Familiarity with HTTP/REST APIs, SFTP, and API design/documentation (OpenAPI / Swagger).

• Dedication to producing clean, maintainable code (adhering to Clean Code principles, SOLID principles, design patterns, and conducting code reviews) and automated testing (unit, integration, end-to-end).

• Proficiency with Git workflows and contemporary development practices.

• Experience in microservices and event-driven architectures (e.g., Kafka, RabbitMQ) along with cloud-native development, preferably on Microsoft Azure.

• Knowledge of Kubernetes, Docker, and CI/CD pipelines (GitLab CI/CD, GitHub Actions), as well as a basic understanding of application security (OAuth2, JWT, secure API design).

• Experience with monitoring, logging, and tracing tools (e.g., Grafana, Prometheus, ELK, OpenTelemetry) and a grasp of scalability, resilience, and performance optimization.

• An agile mindset with experience in Scrum/Kanban and tools such as Jira or Confluence, with a willingness to support frontend tasks (Vue.js / TypeScript is a plus).

• Excellent communication skills in English.

🏝️ Benefits

• Fully remote setup with flexible working hours and regular team events in European cities.