Full Stack Java Developer

We are Hiring an experienced Full Stack Developer (Java / Angular / React) to join our team in Warsaw, Poland. The ideal candidate will have strong expertise in Java backend development along with modern frontend technologies. You will be responsible for designing, developing, and maintaining scalable applications while ensuring performance, security, and reliability across platforms.

Key Responsibilities

• Design, develop, and maintain scalable backend services using Java and Play Framework.
• Build and optimize RESTful APIs and microservices using Spring Boot.
• Develop and maintain frontend applications using Angular, React, and TypeScript.
• Work with message bus systems, particularly AWS SQS, and other technologies such as RabbitMQ or Kafka.
• Implement cross-platform applications using technologies such as React Native and Electron.
• Integrate applications with MongoDB and relational databases.
• Ensure high code quality through unit testing with JUnit and automated testing tools such as Selenium.
• Apply secure coding standards and backend security best practices, including OWASP guidelines.
• Use build and dependency management tools such as SBT, Maven, and Gradle.
• Participate in code reviews and maintain high code quality using tools like Sonar.
• Deploy and manage applications in AWS environments using Docker and cloud-native services.
• Collaborate with cross-functional teams including product owners, architects, and QA engineers.

Required Technical Skills

• Strong Java development experience with Play Framework and Spring Boot
• Experience with SBT, Maven, and Gradle
• Hands-on experience with MongoDB and relational databases
• Messaging systems experience with AWS SQS (mandatory), RabbitMQ, or Kafka
• Strong JUnit testing experience
• Knowledge of backend security best practices and OWASP guidelines
• Experience with AWS technologies, Docker, Selenium, and Sonar
• Frontend development using Angular 13, React, Redux, and TypeScript
• Experience with Material UI (MUI)
• Cross-platform development experience with React Native and Electron
• Experience with Axios for API integration

Preferred Skills

• Experience working in microservices architecture
• Familiarity with CI/CD pipelines and DevOps practices
• Strong problem-solving and debugging skills
• Experience working in Agile/Scrum environments