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Algoteque Logo Algoteque · IT - Software Development

Senior Full-Stack Java Developer

Poland, Warszawa B2B · Job Posted May 29, 2026
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Job Responsibility

  • Develop and maintain both backend and frontend parts of the application
  • Design and implement scalable, secure, and high-performing solutions
  • Collaborate with the team to deliver high-quality software

Requirements

  • Proven experience as a Full-stack Developer with a strong portfolio
  • Strong skills in Java 17+ (Spring, Hibernate) for backend development
  • Good knowledge of how to use software design patterns in practice
  • Hands-on experience with Spring Framework and Spring Security, including dependency injection, security, and web services
  • Ability to design and build RESTful APIs
  • Knowledge of ORM concepts and Hibernate, with experience in performance optimization
  • Familiarity with SLF4J, Log4J, and good practices for application monitoring
  • Solid knowledge of React and frontend technologies (HTML, CSS, TypeScript)
  • Strong SQL and PostgreSQL skills, with experience in database optimization (indexing, performance analysis, normalization/denormalization)
  • Solid experience with unit testing using JUnit and Mockito, familiar with PowerMock
  • Confident with Maven as a build tool
  • Commercial experience with AWS services — we expect more advanced knowledge than just EC2 and S3 storage
  • Experience with EventBus, SOA (Service Oriented Architecture, or at least a monolith combined with surrounding services handling specific functionality), and microservice architecture
  • Experience with Docker and a good understanding of ECS and EKS
  • Hands-on experience with CI/CD pipelines, familiar with AWS CodePipeline and CodeBuild
  • Good understanding of Infrastructure as Code (AWS CDK/Terraform)
  • Good communication skills, ability to collaborate within a team, and a results-driven mindset
  • Ability to work independently in a remote environment
  • Very good command of English (spoken and written)
  • Native/Bilingual Polish

What we offer

  • B2B contract
  • 100% remote work
  • A unique and engaging project in the EdTech space
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