Senior Java Backend Engineer

• Work mode - Lithuania. Onsite, 2 days per week in the Vilnus office.
• Assignment type - B2B - 46 EUR/h.
• Contract length - Until the end of December 2026, with the possibility of extension in early 2027.
• Start - 19.11.2026
• Language - English.
• Industry - banking.
• Recruitment process - 1 interview with the client.
• Workload - Full time (40 hours per week).

Summary

The main function of the role is to contribute to the development of a cloud-native payments system that enhances digital transformation initiatives.

Main Responsibilities

• Designing and developing scalable cloud-native services.
• Building microservice-based applications using Java.
• Contributing to a new payments platform.
• Working with event-driven architecture and messaging technologies.
• Writing clean, testable, and well-structured code.
• Creating and improving automated tests, including unit and integration tests.
• Collaborating closely with developers, architects, testers, product owners, and other teams.

Key Requirements

• Strong experience with Java and related development tools.
• Good understanding of object-oriented programming principles.
• Knowledge of design patterns and software engineering best practices.
• Experience with service-oriented or cloud-native systems.
• Experience with messaging systems such as Apache Kafka, RabbitMQ or similar.
• Strong focus on test automation, clean code, and maintainability.
• Ability to take ownership and deliver in a structured manner.
• Good communication skills with upper-intermediate English proficiency or higher.

Nice to Have

• Experience with event-driven microservice architecture.
• Familiarity with Apache Kafka, especially Kafka Streams.
• Experience with Kubernetes resource configuration.
• Experience with automated testing, including unit and integration testing.
• Knowledge of CI/CD pipelines and GitOps practices.
• Familiarity with observability tools such as Grafana, Prometheus, or Kibana.
• Background in financial services, payment systems, or other business-critical platforms.

Other Details

• Location: On-site in Vilnius, Lithuania.
• Team Structure: Works closely with other teams.
• Focus: Implementing functional and non-functional requirements without production support responsibilities.