Mid/Senior Java Developer

Project/Client: Banking / Fintech
Location: Baltic States and Poland (Remote)
Start Date: ASAP
Duration: Long-term with possible extension
Seniority: Mid / Senior
Language: English

Role Overview:

We are looking for a Mid/Senior Java Developer to join a long-term fintech / banking project. The role involves designing and developing scalable backend solutions using Java 21 and Spring Boot, working within a microservices architecture, and ensuring high performance and reliability of backend systems. The ideal candidate brings hands-on experience with REST API development, cloud environments (AWS), and modern DevOps practices, and holds valid residency in Lithuania, Latvia, or Estonia (citizenship required; background check applies).

Key Responsibilities:

• Design and develop scalable, high-performance backend systems using Java 21 and Spring Boot

• Build and optimize REST APIs following best practices in software architecture

• Work within a microservices architecture, ensuring modularity and maintainability

• Manage builds and dependencies using Gradle

• Write and maintain automated tests using JUnit, Mockito, and AssertJ

• Ensure code quality through SonarQube analysis and code review processes

• Work with GitLab for version control and CI/CD pipeline management

• Containerize and deploy services using Docker on AWS

• Implement logging with Logback / SLF4J and monitor systems via Grafana

• Handle asynchronous event-driven communication using Kafka

• Work with PostgreSQL as the primary database and Redis for caching

• Apply strong security principles and best practices throughout the development lifecycle

• Collaborate closely with cross-functional teams in an agile environment

Must-Have Requirements:

• Proven professional experience in Java development with a strong technical background

• Proficiency in Java 21 and Spring Boot

• Experience with Gradle as a build and dependency management tool

• Hands-on experience with JUnit, Mockito, and AssertJ for testing

• Familiarity with SonarQube for code quality assurance

• Solid experience with GitLab and CI/CD pipelines

• Experience with Docker containerization

• Hands-on experience with AWS cloud services

• Knowledge of Logback and SLF4J for logging

• Experience with Grafana for system monitoring

• Working knowledge of Kafka for messaging and event streaming

• Proficiency with PostgreSQL and Redis

• Expertise in solution design and microservices architecture

• Strong understanding of security principles and best practices in software development

• Knowledge of DevOps practices and related tooling

• Strong problem-solving and analytical skills with a collaborative mindset

• Lithuanian, Latvian, or Estonian citizenship (residency requirement; BGC required)

• Fluency in English

Nice to Have:

• Prior experience working on fintech projects
  
  📩 Ready to Join?
  We look forward to receiving your application and welcoming you to our team!