Senior Java Microservices Engineer (Cloud-Native, Remote)

3003 Sabre Polska Sp. z o.o.; Kraków; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Hybrid work mode

Health coverage

Life insurance

Job summary

Sabre Polska Sp. z o.o. is seeking a Senior Software Systems Engineer to join the global Order Management team.

You will design, build, and deploy mission-critical microservices in a cloud-native architecture, refactor complex codebases, and push for engineering excellence. You’ll work with Java 17+ in a hybrid Kraków environment, delivering high-scale, low-latency systems with strong test coverage. You will collaborate across Agile teams, ensure proper documentation, and leverage AI-assisted

Qualifications

• Five+ years of Java backend development experience in production.
• Strong knowledge of Java ecosystem, Spring Boot and microservices architecture.
• Solid distributed systems understanding including resilience and observability.
• End-to-end SDLC experience from design to deployment and support.
• Experience with automated testing (JUnit 5, Mockito, AssertJ).
• Experience with Agile/Lean software development.
• Familiarity with AI-assisted development tools and applying them to engineering tasks.
• Excellent English and Polish communication skills.

Responsibilities

• Design, build and deploy high-scale microservices on Google Cloud Platform.
• Translate user stories into production-ready code with automated test coverage.
• Refactor complex code to improve maintainability and performance.
• Develop and maintain technical documentation for engineering alignment.
• Collaborate with Agile teams to address feedback and blockers.
• Improve application performance, resilience and stability via engineering solutions.
• Leverage AI-assisted tools to accelerate implementation, testing and debugging.

Skills

Java backend

Spring Boot

Microservices

GCP

JUnit 5

Mockito

AssertJ

CI/CD

AI tools

English Polish

Tools

Maven

Bazel

Kubernetes

GKE

Terraform

Protocol Buffers

gRPC

REST JSON

Job description

Sabre Polska Sp. z o.o. is seeking a Senior Software Systems Engineer to join the global Order Management team.

You will design, build, and deploy mission-critical microservices in a cloud-native architecture, refactor complex codebases, and push for engineering excellence. You’ll work with Java 17+ in a hybrid Kraków environment, delivering high-scale, low-latency systems with strong test coverage. You will collaborate across Agile teams, ensure proper documentation, and leverage AI-assisted