Middle Solidity Engineer


If you haven’t heard of Wirex, then you’ll now know why we’re recruiting - we’re a fintech secret on the cusp of becoming famous! With a genuinely differentiated product, we’re connecting crypto, currencies and convenience for users around the world - all wrapped in an app and armed with a VISA card that can be used to pay for the tube, swap currencies (digital and fiat), or buy ‘that’ new thing you saw last time you visited the local shopping mall.

Our consumers are many, and everywhere – but we’re looking to build and scale our brand. With 3 product offerings (APAC, NA and Europe) we’re a 24-7 diverse collection of people, from hardcore crypto geeks to people that are just passionate about being in fintech and working on a new way of making payments faster and simpler.

Are you striving for further professional self-development and ready to face new challenges? Then join our Wirex team! We are looking for a Solidity Developer to build our leading-edge fintech products. Don’t miss this opportunity to transform the payment landscape with a team of professionals. 

Who we are: 

We’re a FinTech company based in the UK, with an extensive R&D center in Kyiv and offices around the world (Atlanta, Toronto, Tokyo, and Singapore). 

We are the first payment platform to seamlessly integrate digital and traditional currencies and to support multi-currency accounts, blockchain-powered cross-border transfers, and exchange services. 

Our mission is to give everyone the power to use one single global platform for traditional financial and digital assets from anywhere in the world. 

We have more than 4 mln users in 130 countries and we’re constantly expanding. It’s an exciting time to get on board! 

As a team member you’ll be involved in: 

  • Development of new DeFi protocols in the international product. 
  • Design product solutions for new protocols. 
  • Development of front end for the smartcontracts. 
  • Participate in grooming, planning and estimation sessions.
  • We expect that you’ll take a proactive position in platform involvement, technical solutions, processes improvement etc. 


  • 2+ years of experience in Solidity. 
  • 3+ years of experience with NodeJS and related tools. 
  • Experience designing and implementing DApps, DeFi protocols. 
  • Proficiency with sophisticated smart contract development in Solidity.  
  • Familiarity with the EVM compatible chains, frameworks, and tools for the development of smartcontracts.  
  • Experience developing on Ethereum Level 2/Side Chains 
  • Have built and deployed at least 1 DeFi project on Ethereum using ERC20 tokens, L2 solutions 
  • Robust understanding of tokenomics, trading theory, synthetic assets definition etc. 


  • Semi-remote type of work with flexible business hours 
  • Extended medical insurance & additional Сovid 19 coverage available after  one month of cooperation with Wirex R&D 
  • 22 business days of paid holidays a year 
  • Paid sick leaves, state holidays and paid days on special occasions  
  • Annual bonuses in cryptocurrency  
  • Sabbatical up to 3 months after more than one year of collaboration with the company 
  • Fast career development  
  • PE  accounting and support  
  • Free parking 

Diversity and Inclusion

We invite applications from anyone who shares our vision and demonstrates our company values. If you have what it takes to perform the role and have the capabilities required that we have listed in the job description, then we want to hear from you.

We embrace unique and are immensely proud of our diverse team and inclusive culture, if you want to be a part of our exciting journey, don't hesitate to apply.

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