--- title: 'Senior Staff Software Engineer at Kontakt.io' canonical: 'https://feeny.ai/job/senior-staff-software-engineer-kontakt-io-krakow-h2bxbbfap5rf' type: 'job' last_seen: '2026-09-04' --- # Senior Staff Software Engineer at Kontakt.io - **Company:** Kontakt.io - **Location:** Kraków, Poland - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-05-12 - **Last confirmed live:** 2026-09-04 - **Apply:** https://jobs.ashbyhq.com/kontakt/9db396a0-0986-4b58-87bd-e51e778d4fa4/application **Skills:** Java, Spring Boot, Kafka Streams, Apache Kafka, MongoDB, PostgreSQL, Redis, AWS, EKS, Kinesis, S3, Terraform, Helm, REST, gRPC, WebSocket, Prometheus, Grafana, Testcontainers, Jenkins > Kontakt.io is seeking a Senior Staff Software Engineer to own the data ingress and egress pipelines for its healthcare IoT platform. The role involves building robust integrations with third-party devices like Cisco and Aruba, driving architectural evolution using Java and Kafka, and ensuring high-scale processing o... ## Job description About Kontakt.io http://Kontakt.io Inside health systems, where every second can matter, operations are still spread across dozens of disconnected tools and platforms. https://kontakt.io/why-kontakt-io/Kontakt.io http://Kontakt.io is changing that. We combine proprietary hardware, AI-powered intelligence, and deep integrations with the technology health systems already have in place to build real-time understanding of what's happening across their operations. That intelligence becomes the execution layer care teams have been missing, helping them make smarter decisions and deliver better patient care. Backed by Goldman Sachs and trusted by leading health systems including HCA Healthcare, Sutter Health, AdventHealth, Trinity Health, Northwell Health, Cleveland Clinic, and the U.S. Department of Veterans Affairs, we’ve more than doubled our revenue and are rapidly scaling with a clear path toward $100M in annual recurring revenue. If you're excited to solve hard problems and help health systems deliver better care, we'd love to meet you! Kontakt.io http://Kontakt.io is the leading IoT platform for real-time location and telemetry in healthcare and enterprise. Our systems monitor hundreds of thousands of assets and people across hospitals and campuses globally — processing billions of BLE events daily through a Kafka-first, cloud-native architecture. The team is the connective tissue of this platform. We own the full data ingress pipeline — from third-party devices (Cisco, Aruba, and beyond) to our internal Kafka backbone — and we own egress: streaming enriched location and telemetry data out to downstream systems, external APIs, and partner platforms. We are rebuilding this domain the right way: event-driven, observable, documented, and built to scale. We need a technical anchor — someone senior enough to raise the bar, pragmatic enough to ship, and confident enough to drive alignment across engineering and product. What you will work on: Data ingress & device integration Own the pipeline that brings external device data into the Kontakt.io http://Kontakt.io platform. Build and maintain robust integrations with Cisco Spaces, Aruba, and similar third-party infrastructure. High-volume BLE telemetry, Kafka Streams, gRPC — multi-tenant SaaS where both correctness and latency matter. Data egress & external integrations Build and evolve the egress layer that streams enriched location and event data to partner systems and customer-facing APIs — real-time position feeds, alarm forwarding, standards-compliant adapters. You own how the outside world consumes Kontakt.io http://Kontakt.io data. Architecture & technical leadership You will drive the architectural evolution: what to rewrite, what to stabilize, and how to sequence it without breaking production. You establish the engineering standards — documentation, testing with Testcontainers, observability with Prometheus/Grafana — and you hold the team to them. Cross-team ownership Work directly with product stakeholders to translate business requirements into engineering decisions. When scope is unclear, you clarify it. When dependencies block the team, you resolve them. Day-to-day Reponsibilities: - Design, build, and maintain Java/Spring and Kafka Streams-based services processing real-time BLE and IoT telemetry at scale - Own ingress integrations with third-party location platforms — from protocol understanding to production reliability - Build egress pipelines streaming location and event data to downstream systems via REST, gRPC, and WebSocket - Drive architectural decisions and document them — the team currently operates on verbal agreements; you will change that - Use AI tools as a core part of your development workflow: code generation, debugging, documentation, prototype acceleration - Define and enforce testing standards using Testcontainers and CI pipelines (Jenkins, GitHub Actions) - Instrument services with Prometheus and Micrometer; build Grafana dashboards that give the team real operational visibility - Collaborate with Data Platform and SRE teams on Kafka topology, state store configuration, and infrastructure ownership - Mentor engineers on the team — through code reviews, design sessions, and honest feedback What we are looking for: - 7+ years of backend software engineering, with strong production Java experience — Spring Boot and ideally Kotlin too - Deep, hands-on Apache Kafka knowledge: Streams, state stores, topology design, and operational behavior — not just produce/consume - Experience building real-time, event-driven distributed systems in multi-tenant SaaS environments - Solid database fluency: MongoDB, PostgreSQL, Redis — you know when to use what and why - Hands-on AWS experience: EKS, Kinesis, S3; comfortable reading and writing Terraform and Helm - Track record of taking ownership of a messy, under-documented domain and making it better - Ability to work directly with product and business stakeholders — you can translate between engineering and everything else - Clear written and verbal English; the team is international - Based in or willing to relocate to Kraków, Poland Nice to have: - Experience with IoT or BLE telemetry systems - Go or Python for tooling and automation - Familiarity with AsyncAPI, Drools rules engine, or OAuth2/Keycloak - Background in a high-growth Series B/C product company The kind of Engineer we are hiring: You should be comfortable with ambiguity, allergic to sloppiness, and capable of holding a high bar while still shipping. If you think AI tools are optional extras rather than a core part of how modern engineers work, this is not the right role. We Offer: Competitive salary reflecting staff-level seniority — we benchmark against market Equity in a Series C company with a clear growth trajectory Private healthcare, Multisport card, and standard benefits package Hybrid from Kraków office - at least 2 days in the office A real technical challenge — not a maintenance role on a stable codebase ## About Kontakt.io ## Company Overview - **One-liner**: Kontakt.io provides an intelligent orchestration platform for healthcare operations, using real‑time location systems (RTLS), AI, and IoT to optimize patient flow, asset management, and staff safety in hospitals. - **Entity Type**: Private (Series C) - **Headquarters**: New York, New York, United States - **Founded**: 2013 - **Founders**: Philipp von Gilsa (CEO & Founder) ## Core Business - **Primary industries**: Healthcare IT, RTLS (Real‑Time Location Systems), AI‑powered operations, Internet of Things (IoT) - **Target customers**: Hospitals, healthcare systems, and care facilities (B2B, enterprise) - **Mission statement**: “Transform healthcare with smart technology and AI – delivering exceptional outcomes at a sustainable cost.” ## Products & Services - **Supply Chain Agent**: AI‑driven orchestration that automates inventory replenishment, reduces waste, and optimizes equipment utilization. - **Access Agent**: Manages staff and patient access to resources, cutting equipment idle time, rentals, and searches by up to 80%. - **Patient Flow Agent**: Predicts bed demand, reduces ED boarding hours, and improves room usage (20% boost reported). - **Curiosity Engine**: Natural‑language analytics tool that lets operators test assumptions and generate insights from their own hospital data. - **Patient Journey Analytics**: End‑to‑end visibility from admission to discharge, targeting a 15% reduction in length of stay. - **Staff Safety**: Real‑time alerts and safety features to protect nurses and caregivers. - **Asset Management**: RTLS‑based tracking for IV pumps, wheelchairs, and other high‑value equipment. - **Hand Hygiene Module**: Compatible with existing hospital dispensers (launched March 2026). All products are available as part of the Kontakt Intelligent Orchestration (KIO) platform, which integrates with Epic (available in the Epic Showroom Toolbox). ## Market Standing - **Valuation**: Not publicly disclosed. - **Key metric**: Annual revenue of ~$14.5 million (LinkedIn estimate, 2025). Total funding is a matter of conflicting reports: LinkedIn states $68.8 million (Series C $47.5 M led by Goldman Sachs Asset Management, April 2024), while CB Insights reports $55.52 million (including a grant). Both sources agree the latest round is Series C. - **Notable investors**: Goldman Sachs Asset Management (lead Series C), Heartcore Capital, Credo Ventures, Sunstone Life Science Ventures, Tech5. - **Growth signals**: - 135 total employees (Built In) / 104 employees (LinkedIn) – headcount up ~3.4% YoY. - Active job postings: 25+ open roles (LinkedIn), with a 25% YoY increase in job postings. - Trusted by “hundreds of hospitals worldwide.” - Nursing leader Mary Beth Kingston joined the Healthcare Advisory Board (Nov 2024). - Won two 2024 Merit Awards for Healthcare Technology. ## Competitive Advantages - **Only AI platform in healthcare delivering “operational predictability”** – proactively predicts patient demand and aligns resources just‑in‑time. - **Deep integration with Epic** (listed in Epic’s Toolbox), a critical channel for U.S. hospital adoption. - **Patented indoor location technology** (5 patents covering sensors, geolocation, wireless locating). - **Real‑world results** published on their site: 80% reduction in equipment rentals, 20% reduction in ED boarding, 30% improvement in asset utilization. - **Agentic AI approach** – the platform acts as an “intelligence layer” that orchestrates care delivery rather than just tracking assets. ## Strategic Focus - Expand agentic AI capabilities to further automate hospital workflows. - Continue integrating with EHR systems (Epic and others) to provide predictive analytics at the point of care. - Increase adoption in large health systems, particularly in North America and Europe (operations in 6 countries). - Maintain focus on staff safety and patient flow as key growth verticals. ## Why Work Here - **Culture**: Described as “makers and builders” – results‑driven, ambitious, and “not like every other company.” Emphasis on challenging the status quo and having fun. - **Work model**: Hybrid with 3 days in office (Tuesday–Thursday). Monday encouraged but flexible. Remote flexibility depending on role and team. Offices in New York (HQ), Charleston (SC), Kraków (Poland), and North Charleston. - **Perks & benefits** (per Built In): - Competitive compensation with equity (stock options plan), performance bonuses. - Generous PTO, healthcare (medical/dental/vision), life and disability insurance. - Gym membership, wellness initiatives. - Job training and conference attendance. - **Employer rating**: 4.3/5 on LinkedIn (54 reviews) – high marks for work‑life balance (4.3), compensation (4.2), culture (4.2), career growth (4.1). - **Careers page**: [jobs.ashbyhq.com/kontakt](https://jobs.ashbyhq.com/kontakt) – active roles include VP Sales, Senior Data Platform Engineer, Enterprise Account Executives, and Talent Acquisition Partner. ## Sources 1. [Kontakt.io website](https://kontakt.io/) 2. [Kontakt.io careers page](https://kontakt.io/why-kontakt-io/careers/) 3. [Built In company profile](https://builtin.com/company/kontaktio) 4. [LinkedIn company page](https://www.linkedin.com/company/kontakt-io) 5. [CB Insights company overview](https://www.cbinsights.com/company/kontakt) ## Other roles at Kontakt.io - [Junior AP Accountant](https://feeny.ai/job/junior-ap-accountant-kontakt-io-krakow-ekv1barsx1p4) — Kraków, Poland - [Technical Recruiter](https://feeny.ai/job/technical-recruiter-kontakt-io-new-york-djn3gn1wye05) — New York, NY - [CEO Operations Associate](https://feeny.ai/job/ceo-operations-associate-kontakt-io-new-york-rbdr4y7b9q5a) — New York, NY - [Senior Software Engineer](https://feeny.ai/job/senior-software-engineer-kontakt-io-new-york-50r5bqqte0n2) — New York, NY - [Deployment Program Manager](https://feeny.ai/job/deployment-program-manager-kontakt-io-new-york-3y1ybh2vn005) — New York, NY - [Sales Development Representative](https://feeny.ai/job/sales-development-representative-kontakt-io-new-york-d41ajy5sb9jr) — New York, NY - [Enterprise Account Executive](https://feeny.ai/job/enterprise-account-executive-kontakt-io-florida-xe3t91newc16) — Florida - [Director of Revenue Operations](https://feeny.ai/job/director-of-revenue-operations-kontakt-io-new-york-294ppq13e4gr) — New York, NY - [Lead Site Reliability Engineer](https://feeny.ai/job/lead-site-reliability-engineer-kontakt-io-new-york-eghqp7mc6n0e) — New York, NY - [Data Scientist Lead](https://feeny.ai/job/data-scientist-lead-kontakt-io-new-york-c8arfdfktbnm) — New York, NY