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Senior Java API Specialist (f/m/d)

Senior Java API Specialist (f/m/d)

Smart Host is a B2B SaaS platform in the hospitality industry. We empower hotels to put their data to work. We collect, clean, and enrich guest data from both internal and external data sources. Combining this data with analytics and multi-channel messaging allows us to take guest communication and marketing efforts to a new level. Our typical clients are not necessarily tech-savvy, so it's on us to skyrocket them into the digital marketing age by simplifying the experience to the maximum through great usability.

Our growth and product development require increased specialization of the development team. We introduce an API development specialist role. As part of our backend team, you will take care of connecting our application to new APIs, as well as extending and maintaining our existing API connections. Since the hotel tech world's systems are very heterogeneous, every new API is a new challenge to tackle. Be part of an amazing team responsible for our hospitality software solution, and shape the future of our company.


  • Developing APIs for a SaaS backend with non-trivial business logic
  • Being responsible for the correctness of your code
  • Working together with our backend engineers on designing and implementing API features
  • Fighting emerging code complexity by questioning and improving architecture and concepts


  • You are proficient in Java and have kept track of its development to Java 21
  • You are familiar with some of the following technologies: Gradle, Spring, JPA, Scripting (Shell, Python), PostgreSQL
  • You know the fundamentals of networking, operating systems and distributed computing
  • You care about code quality and refactor code where it is required
  • You dig deep to find the root cause of any problem before escalating responsibility
  • You constantly extend and share your professional knowledge


  • A small, skilled and highly passionate team of extraordinary co-workers
  • A competitive salary
  • The potential to significantly impact the company’s future
  • High transparency, trust and freedom
  • A casual working environment with flexible working hours and home office options
  • An office in the center of Berlin between Alexanderplatz and Friedrichstraße

This position is based in Berlin! You need a permanent residence in Germany!

Your complete application should include your CV, a few words about you and your soonest availability.

To be hired, you will need to pass a coding challenge as well as a technical interview which will be conducted by your future colleagues.

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