Kontakt.io

Senior Software Data Platform Engineer

Kontakt.io
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5 months ago
Kraków, PolandSenior

Responsibilities

  • Lead architecture proposals and hands-on implementation for scalable streaming and batch data platforms.
  • Build and operate high-volume real-time location telemetry and predictive analytics pipelines.
  • Design event-driven systems using Kafka and Kafka Streams.
  • Define and evolve data models across PostgreSQL and other relational or columnar data stores.
  • Deploy and optimize containerized workloads in Kubernetes on AWS using infrastructure as code.
  • Integrate hospital systems, location prediction engines, patient flow platforms, and clinical data feeds.
  • Apply AI-assisted development, code review, observability, and testing workflows using tools such as Claude and GitHub Copilot.
  • Identify and eliminate performance bottlenecks and own performance and load testing for compute-intensive services.
  • Maintain CI/CD workflows, production reliability, and zero-downtime deployments.
  • Participate in a 24/7 on-call rotation for platform reliability.

Requirements

  • 6+ years of software engineering experience with distributed systems at scale.
  • Proven experience leading architecture proposals and delivering them to production.
  • Deep expertise with Kafka, Kafka Streams, event-driven architecture, and high-throughput pipelines.
  • Strong production experience deploying, operating, and optimizing Kubernetes workloads.
  • Experience with Spring Boot or a comparable JVM microservices framework.
  • Hands-on AWS experience with infrastructure as code using Terraform, CDK, or equivalent.
  • Knowledge of CI/CD, test automation, and version control best practices.
  • Demonstrated daily use of AI coding tools such as Claude, GitHub Copilot, or equivalent.
  • Strong written and verbal communication in English.
  • Working knowledge of HIPAA compliance requirements is preferred.
  • AWS EMR experience, including Spark, Flink, or large-scale batch compute, is preferred.
  • Experience integrating with EHR systems such as Epic, Cerner, or HL7/FHIR is preferred.
  • Healthcare IoT or real-time location systems experience is preferred.

Benefits

  • Competitive salary and stock option plan.
  • Hybrid work model based in the Krakow office, with 2–3 days per week onsite.
  • Private medical care and cafeteria system.
  • Fast-paced startup environment with a flat, collaborative, self-organized engineering culture.
  • Participation in a 24/7 on-call rotation is part of the role.

Categories

BackendData Engineering
Kontakt.io

About Kontakt.io

51-200 employees
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