SaaS 3.0 Developer (m/f/d)

Job Category: IT & Development
Job Type: Remote possible Part-time Full-time
Job Location: Flensburg

Bring the digital commerce pulse to life with us!

You feel the rapid pace of e-commerce and want to work at the intersection of technology and tax law? Then join us on a journey that will revolutionize the world of online commerce.

At AccountOne we are not just any platform - we are THE shining northern light in an ocean of data and transactions. Our mission? To make life easier for online retailers and tax advisors by taming the data chaos and transforming it into perfect harmony.

Thanks to our revolutionary valuation matrix, which goes far beyond the industry standard, we ensure that revenues are allocated to the correct tax rates and countries at lightning speed. We've mastered the art of automatically matching cash flows to revenue, and that's just the beginning.

With us, you'll be immersed in an ecosystem valued by over 4,000 enthusiastic online merchants and more than 700 renowned tax firms. Our technology is not just a tool, but the heart that connects online businesses and tax professionals.

Together with you, we want to transform AccountOne into a SaaS 3.0 company.

If you are passionate about innovation, if you want to be part of a team that is at the forefront of the digital revolution, then AccountOne your next home. Be the pioneer who makes the difference. Be part of our journey.

AccountOne - Here we are shaping the future of e-commerce. All that's missing is YOUR unique contribution!


  • Cross-platform app development for iOS and Android using Flutter (Dart).
  • Extension of our NodeJS backend
  • Working with different database models (SQL/NoSQL)
  • Further development and maintenance of our AccountOne SaaS platform
  • Independent handling of sub-projects
  • Test and documentation of processes
  • Data protection and security is always in focus in all actions


  • Experience developing NodeJS (JavaScript) and/or Flutter (Dart) projects.
  • Experience with relational databases, as well as non-relational databases (e.g. Redis, MongoDB, MySQL, Postgresql)
  • Experience with REST interfaces
  • Experience with React and/or Vue would also be an advantage
  • Solution and quality oriented work
  • Independent implementation of tasks
  • Computer science degree or comparable experience


  • Above average payment
  • Smartphone and laptop (either Windows or Mac)
  • 30 days vacation
  • Koro Bar & Organic Fruit
  • Edenred non-cash benefit card (after the probationary period)
  • New height-adjustable desks and ergonomic office chairs
  • Location-independent and unbound work (also possible in home office after training)
  • A workplace with a view of the Flensburg Fjord
  • Further training opportunities
  • Teamfinca on Mallorca as winteroffice (1x per year)

With us, you can expect an extensive portfolio of activities and a small family team of 20 people. If you feel like joining our team and contributing to one of the most advanced software solutions in the tax consulting industry, we look forward to receiving your application.

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