Backend Developer, Spring, Kotlin
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Job Description
Backend Developer responsible for designing and building backend services for a large-scale Customs Management System. Working remotely with European teams and modern technologies like Spring and Kotlin.
Responsibilities:
- Work on a large-scale Customs Management System processing thousands of declarations every day
- Design and build modern backend services with Spring Boot, Kotlin, and cloud-native technologies
- Take ownership of technical solutions and contribute to architectural decisions
- Work with modern technologies such as Kubernetes, Docker, Kafka/RabbitMQ, and Microsoft Azure
- Collaborate closely with international, cross-functional teams in an agile environment
- Opportunity to shape engineering standards and improve system reliability
- Drive technical innovation and contribute proactively with your ideas
- A culture that values ownership and continuous learning
- High level of flexibility and autonomy in how you approach technical challenges
Requirements:
- Strong experience with Spring Boot; Kotlin experience preferred (or willingness to learn)
- Solid knowledge of relational databases (e.g. PostgreSQL, SQL Server), SQL, schema design, and ORMs such as Hibernate / Spring Data JPA
- Experience with HTTP/REST APIs, SFTP, and API design/documentation (OpenAPI / Swagger)
- Commitment to clean, maintainable code (Clean Code, SOLID, design patterns, code reviews) and automated testing (unit, integration, end-to-end)
- Experience with Git workflows and modern development practices
- Experience with microservices and event-driven architectures (e.g. Kafka, RabbitMQ) and cloud-native development, ideally on Microsoft Azure
- Familiarity with Kubernetes, Docker, and CI/CD pipelines (GitLab CI/CD, GitHub Actions) as well as basic understanding of application security (OAuth2, JWT, secure API design)
- Experience with monitoring, logging, and tracing tools (e.g. Grafana, Prometheus, ELK, OpenTelemetry) and understanding of scalability, resilience, and performance optimization
- Agile mindset with experience in Scrum/Kanban and tools such as Jira or Confluence, willingness to support frontend topics (Vue.js / TypeScript is a plus)
- Strong communication skills in English
Benefits:
- Fully remote setup with flexible working hours and regular team events in European cities
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