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Fullstack Developer (Java/React/Node)

Technology
Link Group
Kraków, Polska2 tygodni temuDo 20.12.2026
Pełny etatHybrydowa

Opis stanowiska

We are looking for a Mid/Senior Full Stack Engineer to join a product engineering team working on cloud-based applications built with React, Node.js, Java Spring Boot, and Azure. The role is hands-on and focused on designing, developing, and improving scalable web applications, APIs, and microservices in a modern distributed environment.

You will work across frontend and backend, contribute to technical decisions, support code quality, and collaborate closely with engineers, product teams, and architects. This is a good fit for someone who enjoys building features end to end, understands modern engineering practices, and wants to grow further in architecture, cloud, and platform-level topics.

Key responsibilities

  • Develop and maintain web applications using React, TypeScript, and modern frontend tooling.

  • Build and improve backend services and APIs using Node.js and Java Spring Boot.

  • Work with microservices and integration patterns in a cloud-based environment.

  • Participate in solution design, technical refinements, code reviews, and architecture discussions.

  • Support the development of scalable, secure, and reliable applications.

  • Improve code quality, maintainability, performance, and test coverage.

  • Collaborate with product owners, architects, and other engineers to translate business needs into technical solutions.

  • Support CI/CD and deployment processes in Azure.

  • Use AI-assisted development tools such as GitHub Copilot to improve productivity and code quality.

Requirements
  • Commercial experience as a Full Stack Engineer or Software Engineer working across frontend and backend.

  • Strong knowledge of JavaScript/TypeScript, HTML5, CSS3, and modern frontend development.

  • Good hands-on experience with React.js.

  • Experience with Node.js and frameworks such as Fastify or Express.

  • Experience with Java Spring Boot for building REST APIs and microservices.

  • Understanding of distributed systems, REST API design, and integration patterns.

  • Experience with cloud-based environments, preferably Azure.

  • Knowledge of relational databases such as PostgreSQL or MS SQL Server.

  • Familiarity with CI/CD pipelines, version control, and modern software delivery practices.

  • Good communication skills and ability to work effectively in a team.

  • Practical experience or openness to working with AI-assisted engineering tools such as GitHub Copilot.

  • Nice to have

  • Experience with microfrontends or large-scale frontend architecture.

  • Knowledge of Azure App Services, Azure Functions, or Azure DevOps.

  • Experience with DevOps practices, CI/CD, and automated testing.

  • Experience with performance optimisation and troubleshooting distributed applications.

  • Familiarity with cloud security, scalability, and reliability practices.

  • Experience mentoring less experienced developers or supporting technical decision-making in a team.

Who we are looking for

We are looking for an engineer who can deliver high-quality software, work across the full stack, and take ownership of assigned technical areas. You will be a strong fit if you enjoy practical development, understand both frontend and backend perspectives, and want to grow in a modern cloud-based product environment.

Keywords
JavaScriptTypeScriptHTML5CSS3ReactNode.jsReactOSSpring FrameworkMicrosoft SQL ServerScalabilityDevOpsCss 3PostgresqlSoftware DeploymentSqlJavaRelational grammarCI / CDMaintainability

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