API Developer (Java)

HeadHR

Kraków

On-site

PLN 167,400 - 279,000

Full time

14 days+

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Job summary

HeadHR w Krakowie poszukuje programisty backendowego, który zajmie się projektowaniem i rozwijaniem aplikacji oraz API podle współczesnych standardów.

Wymagane jest silne doświadczenie w Javi oraz Spring Boot, umiejętności z zakresu architektury mikroserwisów i API. Praca odbywa się w zwinnych zespołach, gdzie wspierana jest współpraca między technicznymi interesariuszami.

Qualifications

  • Silne doświadczenie komercyjne z Java i Spring Boot.
  • Dobre zrozumienie zasad architektury backendowej i projektowania API.
  • Doświadczenie w pracy z REST APIs i wzorcami integracji.

Responsibilities

  • Projektowanie, rozwijanie i utrzymywanie skalowalnych aplikacji i API backendowych.
  • Budowanie usług zapewniających bezpieczeństwo i wysoką wydajność z użyciem Javy.
  • Udział w dyskusjach architektonicznych i decyzjach projektowych.

Skills

Java
Spring Boot
REST APIs
Microservices
Kafka
Cloud platforms
Maven

Job description

  • Design, develop and maintain scalable backend applications and APIs used across enterprise platforms
  • Build secure and high-performing services using Java and modern backend frameworks
  • Create and improve REST-based integrations, ensuring reliability, scalability and maintainability
  • Participate in architecture discussions and contribute to technical design decisions
  • Develop event-driven solutions and support asynchronous communication between systems
  • Work closely with developers, QA engineers, product owners and infrastructure teams in Agile delivery streams
  • Ensure proper API documentation, versioning and monitoring standards are maintained
  • Troubleshoot production issues, optimise performance and contribute to service stability initiatives
  • Support cloud-native deployments and containerised environments
Kogo poszukujemy?
  • Strong commercial experience with Java and Spring Boot
  • Good understanding of backend architecture principles, microservices and API design
  • Experience working with REST APIs and integration patterns
  • Familiarity with event-driven architecture and messaging platforms such as Kafka
  • Experience with cloud platforms and container technologies
  • Knowledge of build and dependency management tools such as Maven
  • Understanding of software quality practices, automated testing and troubleshooting
  • Ability to work collaboratively in Agile teams and communicate effectively with technical stakeholders
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