Blockchain Developer

Full time Position: Blockchain developer

Start date: February 2018


Job Description / Background

Finatext is a growing Japanese born Fintech company, that focuses on producing quality mobile app solutions, alongside a selection of both educational and service orientated Finance tools.

Reporting to the London CEO, this role will assist in a blockchain development role for Finatext’s first mobile trading application created outside of Japan. This project will be one of significant visibility within the global company and will offer the chosen candidate the opportunity to work on a global project with a multitude of skilled teams and personnel.

Duties and Responsibilities:

  • Deploying on-chain and off-chain

  • Backend and frontend dev

  • Bridging gap between mobile based trading app and blockchain

  • Smart contracts

  • ERC20 Token Standard

  • Security Audit

  • uPort

  • web3


Qualifications / Experience:

  • Good working knowledge of ledgers, consensus methods, blockchains, and cryptocurrencies

  • Past experience developing Blockchain Products and Proofs-of-Concepts

  • Full stack/polyglot development expertise

  • Experience in building and delivering REST API

  • Experience designing, developing, and delivering complex Blockchain technology applications

  • Testing and deploying a Blockchain solution through all phases of a development life cycle

  • Experience working with cryptographic programming and protocols

  • Understanding of the cryptographic principles underpinning of Ethereum and Bitcoin technologies

  • Great attention to detail who always aim for breakthrough innovation

  • Start up experience is desirable



  • Solidity, ConsenSys, ÐApps, Open zeppelin frameworks

  • Interest for Machine Learning and data analytics

  • Previous experience working in Fintech or Finance

  • Previous experience working with millennial orientated products

  • Speak Japanese (nice to have)

If you have a passion for this exciting fast-growing fintech industry and you’re a pro-active fast learner looking for the opportunity to launch your cryptocurrency career then we’d like to hear from you.

To find out more or apply, please email a copy of your CV/Coverletter to and/or

Developer, BlockchainRuiz Asri