Java Backend Engineer

17 hours ago

Belgrade Serbia Consulteer Full time €30,000 - €60,000 per year
Job description

Are you ready to build end-to-end solutions that make an impact?

Your Role & Responsibilities

  • Develop and maintain scalable Java web applications using Quarkus or Spring Boot

  • Design, implement, and maintain microservice-based architectures

  • Ensure seamless integration between system components using Kafka

  • Build and manage databases with technologies such as PostgreSQL and MongoDB

  • Work within a Domain-Driven Design (DDD) approach to model complex systems

  • Deploy applications using container orchestration platforms like OpenShift or Kubernetes

  • Design and orchestrate business workflows using the Temporal workflow engine

  • Integrate backend services with AI components, including Large Language Models (LLMs), LangChain/LangGraph, and Retrieval-Augmented Generation (RAG)

  • Collaborate with product owners, designers, and other developers to understand requirements and deliver high-quality software

  • Write clean, maintainable, and well-documented code

  • Participate in code reviews and contribute to technical discussions and decision-making

Job requirements

Required Technical & Professional Expertise

  • A completed technical university degree in Computer Science, Software Engineering, or a related field (mandatory)

  • Proficiency in Java for server-side application development

  • Experience in building and deploying microservices and RESTful APIs using Quarkus / Spring Boot

  • Hands-on experience with Kafka for real-time data processing and communication

  • Hands-on experience with database technologies such as PostgreSQL and MongoDB

  • Familiarity with container orchestration tools like OpenShift and/or Kubernetes

  • Practical experience with Domain-Driven Design (DDD) concepts

  • Strong problem-solving skills and the ability to work independently or as part of a team

  • Excellent communication skills in English (written and verbal)

Bonus Skills (Nice to Have)

  • Experience with modern Python ecosystems.

  • Understanding of LLM concepts and practical experience integrating them into enterprise applications.

  • Familiarity with LangChain / LangGraph frameworks used to build AI-driven workflows.

  • Experience designing or implementing RAG architectures to enhance AI-powered data retrieval.

All done

Your application has been successfully submitted

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