Senior Software Data Platform Engineer

Kontakt.io; Województwo małopolskie; On-site; PLN 100,000 - 130,000; Full time

Job summary

Kontakt.io is seeking a Senior Engineer in Poland to lead the architecture of our data platform, ensuring scalability and security for healthcare environments. You will drive AI-first design decisions, optimize performance across systems, and utilize cloud-native AWS infrastructure. This role demands expertise in building secure systems, privacy compliance, and performance engineering, while working on evolving our HIPAA-compliant infrastructure.

Qualifications

• Experience in designing scalable data platform architecture.
• Strong understanding of privacy, compliance, and performance engineering.
• Proficiency in cloud-native infrastructure and Infrastructure as Code.

Responsibilities

• Lead the design and implementation of scalable data platform architecture.
• Maintain compliance with privacy and security regulations.
• Optimize performance across microservices and data stores.

Skills

Architecture Leadership

AI-Augmented Design

Performance Engineering

Tools

AWS

Kubernetes

Job description

Our Data Platform powers the Location Engine and predictive analytics pipelines — processing high-volume real-time IoT telemetry and transforming it into production-grade location intelligence for hospitals, clinics, and healthcare networks worldwide.

We\'re looking for a Senior Engineer to own the architecture of this platform end-to-end. You\'ll lead AI-first design decisions, drive HIPAA-compliant infrastructure evolution, and set the engineering bar for a team that cares deeply about reliability, privacy, and performance at scale.

What you will be working on

• Platform architecture Lead proposals and hands-on implementation of scalable, AI-augmented data platform architecture — from streaming pipelines to predictive analytics at scale.
• Privacy & compliance Design and maintain secure systems with encryption at rest and in transit, audit logging, access controls, and proactive observability — built for regulated healthcare environments.
• Performance engineering Identify and eliminate bottlenecks across streaming pipelines, microservices, and data stores. Own performance and load testing for compute-intensive paths.
• Infrastructure as code Build and maintain cloud-native AWS infrastructure using IaC tooling. Design containerized, Kubernetes-native workloads with a focus on cost, reliability, and zero-downtime deployments.