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Pavlo Savchuk
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Case studyMay 2015 – May 2023

Maguru

Lead Full-Stack Developer, then Frontend Technical Lead

Over eight years at Maguru I moved from lead full-stack developer to technical lead, taking the company's core web platform, its call routing product, and a two-app mobile line through successive rebuilds as the business and the stack both grew up.

  • React
  • React Native
  • React Flow
  • AngularJS
  • Angular
  • Ionic
  • TypeScript
  • PHP
  • MariaDB

Context

The challenge

The company needed its ageing AngularJS/Ionic web and mobile stack replaced with something that could support a growing, configurable call-routing product used directly by non-technical business customers, and two production mobile apps that had outgrown Ionic, without a parallel team big enough to build and maintain two stacks at once.

Delivery

What I built

  • As Lead Full-Stack Developer, I led frontend development of the company's core web platform in AngularJS and Angular, launched its mobile product line with two cross-platform Ionic apps (Maguru Mobile CRM and My Craftsman), and owned the PHP and MariaDB CMS platform behind it.
  • As Frontend Technical Lead, I built the custom graph-based editor behind the company's call routing platform, using React and React Flow, with configurable nodes, conditional logic, and a business rule execution engine that let non-technical staff build call handling scenarios visually.
  • I led the migration from Ionic to React Native, completed in 2019, and then led development of both mobile applications on the new stack: Maguru Mobile CRM for craftsmen businesses and My Craftsman (Mine Håndværkere) for their customers.
  • I developed a native iOS caller ID application in Objective-C, solving real-time server-to-device contact synchronisation without manual contact creation on the handset.

Result

Outcome

The call routing platform serves over 200 business clients, processing thousands of calls a day across Denmark for more than 30,000 end users. Both React Native apps shipped to the App Store and remained in production through the Ionic-to-React Native migration.