Permissioned Ethereum-Powered Crypto Exchange Web Platform

Aiding in signature solution development completion
Customer location
  • UK UK
Project duration:
  • 4 months

Client and Business Goals

Our client is a British startup blockchain technology provider.

As an independent tech entrepreneur, the client had built a back-end for a blockchain system. Ethereum network fine-tuning and web3 libraries implementation were the development tasks to follow. The client also needed a partner capable of engineering a technically sound and smoothly navigated front-end to take the existing solution to a frictionless release.

Upon the client’s request, the Symfa team demonstrated mature blockchain engineering skills along with a solid business logic and architecture design experience, which made the vendor choice a breeze.


Despite the hurdles with processing cryptocurrency transactions through the existing back-end, Symfa engineering experts managed to roll out the expected functionality while cautiously fitting it into the pre-built infrastructure. None of the solution’s components were harmed during the platform launch.


The team delivered dedicated apps for a private Ethereum network-based blockchain app intended for internal cryptocurrency exchange between a limited number of the system contributors.

Work done

  • UI components engineering
  • Business logic integration
  • Unit tests development
  • Client & admin web apps engineering
  • Ethereum network setup
  • Parity Ethereum implementation
  • Web3-powered transactions generation
  • Ad hoc requests resolution


  • Ethereum
  • React.js
  • Redux
  • Redux-Saga
  • Web3


  • Symfa successfully tackled the client’s tech challenge delivering the required system components right on the promise.
  • The client is looking to continue the cooperation by proceeding with new business logic integration and functionality updates.

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