Java Backend Developer

As part of our continued growth, Neo Group is recruiting on behalf of one of our local partners, leveraging our network of 1,400 talented professionals across 10+ countries. Together, we are committed to delivering innovative, data-driven solutions that empower our clients and foster professional growth within a dynamic and collaborative workplace.

We are on the lookout for a Middle+/Senior Java Backend Developer to join our IT Department.

Responsibilities:

• Lead the full development lifecycle: from idea to production rollout
• Develop and maintain the backend of a high-load application
• Design and implement APIs, integrate with external and internal services
• Work with databases, write efficient SQL queries and migrations
• Optimize performance and scalability of solutions
• Ensure code compliance with internal standards and best practices
• Test, debug, and support the code
• Collaborate with frontend developers, DevOps engineers, and other teams

Requirements

• 3+ years of commercial experience in Java development
• Understanding of web application fundamentals using Apache Tomcat
• Understanding of multithreading and concurrency in Java (ExecutorService, CompletableFuture, Virtual Threads, Synchronization, Thread safety)
• Strong knowledge of Spring Boot, including Spring MVC, Spring Security, Spring Data
• Experience building RESTful APIs
• Hands-on experience with Kafka in production/high-load environments
• Experience working with relational (PostgreSQL, MySQL) and non-relational databases (MongoDB, Redis)
• Proficient in Git and experience in team-based development
• Understanding of microservices architecture
• Solid skills in writing unit and integration tests using JUnit, Mockito or similar tools; commitment to well-tested and reliable code
• Experience writing cloud-native (Docker, Kubernetes), distributed systems in Java and Spring Boot
• Experience leveraging AI-powered coding assistants (such as Claude) to enhance productivity, code generation and refactoring

Soft Skills:

• Ability to clearly articulate technical solutions and justify choices
• Strong teamwork and communication skills
• Responsible, result-driven collaborator and effective communicator
• Enthusiastic to learn and grow with the team