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Blockchain Engineer

full-time TokenCard London

TokenCard is a cutting-edge technology company that is shaping the future of banking by building decentralised payment solutions on the Ethereum Network. As the cryptocurrency market continues to grow and outpace traditional asset classes, there is a need to provide products and services to benefit its growing user-base. One such product is the TokenCard debit card.

The Engineering team is a fast-growing group of talented people expanding in size to match the multiple challenges associated with scaling a global payment solution. TokenCard is looking to world-class blockchain experts who are looking to build innovative smart contracts, multi-signatures, and other blockchain based products.

Our ideal candidate puts users and product features first, is technically-minded, creative, and passionate about elegant software design:


  • Ensuring the technical feasibility of product requirements
  • Engineering, test, and design smart contracts on the Ethereum Network
  • Work with the product to iterate on the design and implementation of our products
  • Work with the other backend engineers to deliver TokenCard’s core platform
  • Participate in both design and code reviews
  • Providing accurate timing estimates on work
  • Collaborate internal stakeholders to build uncharted, decentralised solutions to the payments industry

Must have

  • Strong understanding of Blockchain concepts
  • Strong understanding of Ethereum
  • Strong understanding of building Smart Contracts
  • Ability to architect scalable solutions in a fast-paced environment
  • Ability to carefully break down problems into smaller pieces
  • Excellent communication skills

Nice to have

  • Experience building highly-concurrent distributed systems
  • Experience writing Solidity
  • Experience building backend systems in a service oriented architecture on the cloud
  • Experience profiling and debugging Go systems
  • Programming experience with Go
  • Experience using GCP
  • Competitive salary
  • 25 days holiday allowance
  • Quarterly team events
  • Friday catch-ups – Beers, wine, soft drinks and snacks provided
  • Wednesday team lunch
  • Flexible working arrangements
  • Cool location in Central London
  • Work on the latest technology
  • Your choice of top of the range hardware
published: April 30, 2018

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