Mobile developer

Sentinel Marine solutions is one of the leading providers of boat monitoring solutions worldwide and enabler of the Smart Boat vision.

Our flagship product, the Boat Monitor, is a powerful monitoring system for boats. It can monitor a wide range of sensors, and measure battery voltage, the bilge (water pump), record NMEA 2000 instrument data and more. The product comprises a hardware device and a set of mobile and web applications. Data gathered from the Boat monitor device is transferred to the cloud and available to our customers wherever they are.

We need an extraordinary engineer to join our team. You will build new features and capabilities on top of our core mobile application, plan, design, implement and test new purposeful applications and maintain our existing application up to modern coding standards. You should have strong mobile development experience in iOS or Android platforms, ideally both. You should be excited to work on bridging the technological gap in the nautical industry.

This is a full time position in our offices in Ljubljana.


  • Develop, test, and release new features and functionality from the mobile applications’ technical roadmap.
  • Work with backend and firmware engineers to coordinate new functionality and deliver powerful integrations between the Boat monitor devices and the mobile applications.
  • Continually improve, optimize, and test existing functionality of our mobile applications.
  • Maintain the code to modern coding standards.
  • Create new purposeful applications for auxiliary audiences.
  • Expand support for Bluetooth (BLE) in our applications.
  • Be an enthusiastic and personable teammate, receiving and providing code reviews, and otherwise partnering and helping other engineers.


  • At least 2 years of mobile development experience.
  • Expertise in developing medium size mobile applications.
  • Solid knowledge of Swift and/or Java.
  • Strong experience in developing for iOS and/or Android platforms.
  • Experience working with remote data via REST and JSON
  • Solid understanding of the full mobile development cycle
  • Passionate about building reliable applications.
  • Experience or willingness to learn mobile testing practices.
  • Experience with source code versioning, i.e. git
  • Bonus: experience in mobile Bluetooth development.
  • Bonus: experience in both iOS and Android app development or willingness to quickly learn how to develop on both platforms


In return you will benefit from a competitive compensation package with stock options, flexible schedule and awesome coworkers.

How to apply

Send us an email to with an up-to-date CV. We will greatly appreciate any links, or descriptions, showcasing mobile application that you have built either in part or in full.

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