Smart Contract and Blockchain Backend Developer

HashEx vision is to become the #1 DeFi Intelligence and Security Provider.

We believe that only relevant, factual data and top security standards can make the DeFi market a safe financial space. If you are passionate about our common goal, we are always looking for talented individuals with knowledge, experience, and a desire to learn.

HashEx is seeking a talented individual who possesses infinite curiosity and passion for security. As a Smart Contract Developer, you'll work in a team of experienced smart contract developers and auditors to deliver the new security standards on decentralized markets.

Responsibilities:

• Writing clear smart contracts code under senior developers supervision
• Writing backend services for smart contract interaction
• Working with existing contracts and implementing new features based on the project roadmap
• Working effectively within a collaboratively minded team

Qualifications:

• Understanding of how Blockchains work, especially Ethereum
• Experience in smart contract development with Solidity programming language
• Willingness to learn to write very high-quality, well-tested code
• Passion for Open Finance/ Defi or Trading
• Ability to learn and adapt to a rapidly evolving tech stack
• Strong communication and collaboration skills
• Good written English

Preferred:

• Good understanding of continuous integration tools and blockchain management tools
• Knowledge of Web3 and Ethereum development and test tools (Truffle or Hardhat)
• Knowledge of market structures and exchange related concepts
• Experience with Node.js
• Familiarity with decentralized finance, upgradeable smart contracts, proxy patterns, and experience working with ZeppelinOS
• Experience with Mocha JavaScript test framework and Chai’s assertion library
• Familiarity with cryptography and experience with Public Key Infrastructure (PKI)

Benefits:

• Working with experienced in blockchain team that made 200+ smart contact audits and never missed high severity bugs
• Fast-growing and unique business challenges
• Writing code for projects with high TVL
• International working environment in a team of people who are passionate about big goals
• Great career opportunities in a developing company
• Opportunity to develop both personally and professionally
• Progressive salary and bonuses
• Remote work and flexible hours
• Annual corporate retreat