
Senior Software Data Platform Engineer
Kontakt.io5 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.
Tech Stack
Categories
BackendData Engineering