• Department:
  • Location:
    Kharkiv, Ukraine or remote
  • Education:
    Master’s Degree
  • Experience:
    3+ years

General Description

Hi there! 

We’re Primex Finance — the new prime brokerage liquidity protocol for DEX-agnostic, cross-margin trading with trader scoring mechanisms. 

With Primex, lenders provide liquidity to pools where traders then use it for leveraged trading. This gives lenders the opportunity to earn higher yields compared to lending protocols, as the interest is generated from margin fees and profits of successful trades.

The project will be launched on Moonbeam and a few ETH L2s.. Primex.finance is backed by some of the top VCs in the space, including Stratos Technologies, Coinfund, Hypersphere, Wintermute, GSR and others.

Now, we’re extending the team and looking for a talented and motivated Solidity developer with experience building DeFi dApps and a deep understanding of blockchain technologies. ​​In addition to the monthly compensation, we are also offering token options for our core employees and contractors.

If you’re ready to make a huge leap in the decentralized finance world together with our friendly team, check the details below and feel free to reach out.


  • 3+ years of experience in Solidity development
  • Good knowledge of Truffle, Open Zeppelin, and Hardhat frameworks
  • Understanding of DeFi mechanisms and building blocks, including liquidity pools, AMMs, and bonding curves
  • Experience with DeFi protocols
  • Deep understanding of ERC-20, ERC- 721, and ERC-1155
  • Good skills in smart contracts development and resolving security vulnerabilities
  • Experience optimizing gas
  • Fluent in English

Nice to haves

  • Experience with L2 protocols and sidechains (optimistic and ZK rollups)
  • Experience with Polkadot.js and Substrate
  • Development experience with JavaScript and TypeScript
  • A degree in computer science or a relevant field, or comparable experience
  • Experience with Ethereum testing tools, e.g. Truffle, Embark, HardHat, etc.
  • Experience writing automation tests
  • Understanding in Uniswap, SushiSwap, Aave, Compound


  • Write smart contracts
  • Write unit tests
  • Integrate with existing DeFi/NFT protocols
  • Research different, existing DeFi/NFT protocols
  • Create high-quality and well-tested Solidity code, following the latest design and development patterns
  • Write documentation, design flow diagrams, and review PRs
  • Research, design, scope, and estimate what you need to do
  • Collaborate with the UI team
  • Constantly improve yourself by keeping up to date with the latest technologies and trends

In return, we offer:

  • Benefits
    • Remote and flexible work hours — your day can start from 8:00 to 12:00  focusing on personal preferences and team meetings
    • 21 days of compensated day-offs and 8 sick days
    • Monthly income above the market average 
    • Regular performance reviews
    • Accounting support and legal support in some countries
    • The best hardware
    • Relocation program


    • ​​In addition to the monthly compensation, we also offer our team members token options. You can own a part of the project what we build together and share in our success.


    • Premium medical insurance from the first month of cooperation in some countries
    • Paid fitness club membership from the first month of cooperation in some countries

    Growth and development

    • Professional development with training, coaching, and regular feedback
    • Professional IT event compensation
    • Fully paid English courses and the opportunity to improve English skills
    • Team of skilled professionals that share knowledge and support each other

    For your comfort 

    • You can choose the most convenient place to work, either remotely, in a co-working space, or in our office
    • Cozy and comfortable office space 
    • Office breakfasts, snacks, and beverages
    • Corporate celebrations and fun activities