Extra Ordinary

Fullstack Developer

We are a team of ordinary people, doing extraordinary things.

Kontakt.io is on the mission to simplify the delivery of location data insights globally. With its open, modular, and hardware-agnostic technology stack and out-of-the box integrations, Kontakt.io dramatically speeds up go to market time frame and reduces location and sensor driven solution development costs. Kontakt.io’s BLE Infrastructure is open and modular and consists of three layers: The Core API and Cloud Middleware for infrastructure management and data integration. The Connectivity layer supporting proprietary BLE gateways, SDKs and agents running on third-party WiFi access points. And last but not least, the Device layer, offering a rich portfolio of proprietary BLE beacons, tags and firmware development kits for third-party devices. Together, the layers create a robust foundation for a variety of applications, including location-based content, indoor positioning and wayfinding, asset tracking (RTLS), safety and security, and condition monitoring. Since 2013, Kontakt.io has lead the BLE IoT market, with over 1.5 million of devices deployed and a loyal base of 20,000+ partners and customers globally. In 2019, Kontakt.io launched Simon Location Analytics Platform, the next-generation Location & Sensor Analytics software suite for operational environments focusing on business users. To learn about Kontakt.io’s technology, visit https://kontakt.io
  • Kraków

  • Full time

  • English

Apply now

Your Role

Our Dev team is developing a new project hence we are looking for Fullstack Developer to join Kontakt.io. As a fullstack developer, you will get the chance to work on our new product using cutting-edge technology and making a real impact on our projects – real-time data collecting (backend) and a real-time asset tracking system visualization (frontend)

Your role

  • Building real time data collecting system
  • Integrating the solution with location engines
  • Asset tracking system visualization
  • Taking an active part in feature planning
  • Supporting the sales team on technical matters when necessary (e.g. gathering requirements from partners)
  • Communicating with the team on a daily basis to share and build knowledge


  • wide experience in programming Java; you handle advanced stuff with ease
  • ability to develop both backend and frontend parts of applications
  • passion to keep skills current and learn the greatest new techniques
  • good command of English (you will work in an international environment)
  • An excellent bonus piece of knowledge would be an experience working with AWS or other cloud computing system

We are not hiring based on buzzwords, we want smart people. Aside from what we’re asking for above, we would expect knowledge of the following: JavaScript, JEE, Spring, REST, and used of build tools, CI tools, unit tests, SQL and so on.

As one of Kontakters you will get:

  • Ownership


    We are all problem solvers. Everyday you will challenge yourself to go beyond the ordinary in your work and to push IoT technologies further.

  • Flexibility


    There are both night owls and early birds among us. That’s why you will be able to adjust working hours to your needs and still be awesome at your job.

  • Awesome Team

    Awesome Team

    Great companies are made of great people. You will work side by side with amazing teams of experience sales, product owners and engineers

  • Benefits


    Training in one of the fastest growing European start up scenes - Krakow, Poland - ESOP - Competitive base salary

  • Appreciation


    Your hard work will translate into great salary & stock options (ESOP). We all know that our dedication will finally lead us to a bigger success.

  • and Beyond....

    and Beyond....

    Fully performance-based career growth opportunities.

Meet the Team

Send us an Open Application

As we have hinted above – we are a fast growing company in constant need of new and fresh talent. While we may not have *exactly* the right position ready for you now, you can (and should) still send us your CV if you are excited by the prospect of working for a growing tech company. Working and succeeding in a young company is a mindset; not just a collection of skills and experience.

Apply now

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