Staff Software Engineer: Architect & Lead for Health AI

Kontakt.io; Kraków; Hybrid; PLN 300,000 - 420,000; Full time

Benefits offered by this job

Private healthcare

Equity

Multisport

Snack and lunch in the office

Job summary

Qualifications

• 7+ years of engineering experience with Java/Kotlin.
• Experience as a technical lead or architect on a team.
• Proficient in OOP and functional programming paradigms.
• Proven experience architecting and operating container-based distributed systems in production.
• Fluent with AI-assisted development tools and processes.

Responsibilities

• Own technical direction for complex, ambiguous problems and translate goals into durable systems.
• Design and build APIs and services that are fast, scalable, and easy to integrate.
• Work with Kafka-based event-driven systems and ensure reliable integration with owning teams.
• Design and build frontend UIs and decide where logic belongs across the stack.
• Set the technical bar: lead design reviews, mentor engineers, and push back when shortcuts cost more later.
• Develop and deploy container-based applications with operability in mind.
• Collaborate with product, SRE, and other teams to ensure observability and debuggability around systems.
• Actively use AI tools as part of your workflow to improve speed and quality.

Skills

Java/Kotlin

Technical leadership

System architecture

AI-assisted development

OOP & Functional paradigms

Distributed systems

Tools

Kafka

Docker

Kubernetes

Event-driven systems

Job description