About Kontakt.io
Kontakt.io is building the platform that care operations run on.
We reduce waste, cut costs, and improve throughput in hospitals by automating and orchestrating clinical workflows. Using AI, real-time location data (RTLS), and deep EHR integration, our platform enables care teams to operate with real-time intelligence and financial discipline.
Trusted by leading U.S. health systems including HCA, Sutter Health, AdventHealth, Trinity Health, and the U.S. Department of Veterans Affairs — and backed by Goldman Sachs — we are scaling rapidly toward the next phase of durable, disciplined hypergrowth.
Our devices sit at the physical edge of the Kontakt.io platform — delivering real-time location intelligence for patients, staff, and assets across hospitals worldwide. The hardware we ship must be reliable, power-efficient, and maintainable at scale across thousands of deployed units in regulated healthcare environments.
We're looking for a Senior Firmware / Embedded Engineer to own the full hardware lifecycle — from schematic review and component validation to production-grade firmware running on Nordic Semiconductor microcontrollers. You'll set the quality bar for devices that clinicians and hospitals depend on every day.
What you will be working on
Hardware design & validation
Review and validate PCB schematics, component selection, and board-level design decisions before production. Catch issues early — at the schematic stage, not after boards are manufactured.
Firmware development
Build and maintain production firmware for Nordic Semiconductor (nRF) microcontrollers — including BLE and UWB radio stacks used for real-time indoor positioning in healthcare environments.
Hands-on testing & bring-up
Set up and run hardware test environments. Prototype on breadboards, solder, validate device behavior, and own bring-up from first-article boards through to production qualification.
Device reliability
Implement health monitoring mechanisms to ensure devices operate continuously in the field. Own reliability from firmware to fleet — devices must keep running without human intervention.
Day to day responsibilities
Write and review embedded C firmware for nRF-series microcontrollers using Zephyr RTOS
Review hardware schematics and validate PCB designs — identify and flag issues before production
Prototype and bench-test hardware setups; solder, debug, and validate devices hands-on
Implement and maintain watchdog, reset, and device health monitoring logic for production deployments
Collaborate with the Location Engine team to ensure reliable, low-latency data delivery from device to cloud
Apply AI-assisted development practices (Claude Code, or equivalent) to accelerate firmware development and code review
Contribute to design decisions covering the full product lifecycle — requirements, component selection, enclosure validation, bring-up, and release
The engineer we're looking for investigates problems proactively — doesn't wait to be told what's broken. Works independently across hardware and firmware layers. Thinks about correctness, reliability, and long-term maintainability — not just "does it compile."
What we are looking for
3+ years of embedded / firmware engineering experience on commercial hardware products
Electronics background — able to read schematics, review PCB layouts, and validate hardware designs independently
Hands-on hardware skills — comfortable with soldering, bring-up, and manual testing of embedded systems
Understanding of radio / wireless fundamentals — antennas, BLE, UWB, NFC, or related protocols used in positioning systems
Demonstrated use of AI coding tools in daily workflows (Claude, GitHub Copilot, or equivalent)
Strong written and verbal communication in English
Nice to have
Nordic Semiconductor (nRF series) and Zephyr RTLS experience
Exposure to indoor positioning technologies (RTLS, IPS, UWB ranging)
Python for scripting, tooling, or test automation
Background in healthcare IoT or regulated device environments
We offer
Fast-paced, dynamic startup environment with flat structure
Competitive salary and stock option plan
Work on cutting-edge healthcare IoT at the intersection of hardware, firmware, and real-time location intelligence
Hybrid work model (Kraków office — 2–3 days per week onsite)
Collaborative, self-organized engineering culture
Private medical care and cafeteria system
Ready to build hardware that saves lives?
Apply and tell us about a hardware or firmware project you owned end-to-end — what broke, how you found it, and what you did about it.
At Kontakt, we transform care operations with an integrated approach to RTLS, EHR, and predictive and agentic AI.
Key team members
Steve Owens
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