Senior Data Engineer (Java)

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