Senior Data Engineer (Java)

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Kraków, PL, 30-302 Until 9/26/2026 5+ years exp First posted July 28, 2026 Last posted July 28, 2026
Job description

Type of contract: Employment contract

Salary range: 14600 - 22 300 PLN gross/month

 

What will you do?

 

Join a team building a strategic cloud-based risk data platform that delivers large-scale market data processing and analytics capabilities. You will work on modern data processing pipelines, microservices, and integration solutions, helping to design scalable and high-performance systems that handle both real-time and batch workloads. The role combines software engineering, data engineering, and cloud technologies in a collaborative and innovation-driven environment.

 

Your tasks

 

  • Translate business requirements into secure, scalable, and high-performance solutions
  • Design and develop data processing pipelines for large-scale data workloads
  • Build and maintain Java and Spring Boot based microservices
  • Design and implement REST APIs
  • Integrate internal systems with a focus on performance and cost optimization
  • Develop solution blueprints for market data ingestion patterns
  • Review solutions created by other team members
  • Assess and improve existing data pipelines and microservices
  • Collaborate with engineers, business analysts, and stakeholders Implement industry-standard logging, monitoring, and error-handling practices
  • Support automated recovery mechanisms and operational excellence
  • Promote automated unit and regression testing practices

 

Your skills

 

  • Strong knowledge of Java Experience with Spring Boot and its ecosystem
  • Knowledge of software design principles including KISS, SOLID and DRY
  • Experience designing and implementing data processing pipelines
  • Experience designing and implementing REST APIs
  • Knowledge of relational databases
  • Knowledge of NoSQL databases
  • Experience with PostgreSQL or similar databases
  • Understanding of DevOps and CI/CD practices
  • Experience with Jenkins Basic knowledge of Groovy scripting
  • Knowledge of integration frameworks and patterns

 

Nice to have

  • Experience with Google Cloud Platform (GKE, Cloud SQL, Dataflow, Bigtable)
  • Experience with containerization, orchestration and Infrastructure as Code technologies (Docker, Kubernetes, Terraform)
  • Experience with monitoring, observability and messaging solutions (Prometheus, Grafana, OpenTelemetry, Kafka)
  • Knowledge of Apache Beam or Vaadin

 

We offer

 

  • Hybrid work from our client's office (Kraków) 8 days a month
  • Working in a highly experienced and dedicated team
  • Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)
  • Online training and certifications
  • Access to e-learning platform
  • Social events
About this role

Summary

Designs and develops scalable data pipelines and microservices using Java and cloud technologies.

Job title

Senior Data Engineer (Java)

Experience level

senior level

Minimum experience

5+ years exp

Industry

software

Location requirements

Kraków, Poland, hybrid work allowed

Salary

$15k–$22k

Management role

No

Skills & keywords

Required skills

JavaSpring Bootsoftware designdata processing pipelinesREST APIsrelational databasesNoSQL databasesPostgreSQLDevOpsCI/CDJenkinsGroovy

Preferred skills

Google Cloud PlatformGKECloud SQLDataflowBigtableDockerKubernetesTerraformPrometheusGrafanaOpenTelemetryKafkaApache BeamVaadin

Specializations

JavaSpring Bootdata pipelinesREST APIcloud
Locations

Structured locations inferred from the posting.

Kraków, Poland

Hybrid City