Simplifying the work of tax professionals with a mobile app

Fall to Winter 2016
Rangle Toronto


  • Agile delivery of an AI-powered tax research tool from concept to product
  • App architecture designed to scale additional AI-powered services easily
  • Enabled client to take future development in-house with collaborative work and seamless knowledge transfer

The challenge

The process

Rangle’s team worked with Blue J to deliver a viable product on a short timeline. The app was a React frontend and node.js-based backend architecture that integrated with IBM Watson and Microsoft Azure to provide tax classifications and source the top five case studies supporting the result. The team delivered on an incredible user experience that remains the foundation of Blue J’s AI-powered services even to this day.
The Rangle team also ensured longevity, creating a platform that could easily scale the launch of additional machine learning services over time. This included a Classifier Generator that reduced the build time needed to add additional classifiers from one month to a single week, allowing Blue J to rapidly increase the scope of tax-law questions their platform could answer.

Powered by machine learning

The outcome

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