About the Company:
Сollect Group Holdings is a forward-thinking group of fintech companies founded in 2017. We are dedicated to revolutionizing how businesses manage their customer relationships. With a strong commitment to innovation and excellence, we specialize in developing cutting-edge fintech and blockchain platforms.
Our companies:
Collect & Pay - collectnpay.com
Collect & Exchange - collectnexchange.com
Capital Pay - capitalpay.biz/en
Responsibilities
- Collaborating with the CTO and cross-functional teams to write core smart contracts for crypto exchange.
- Writing production-quality smart contracts, unit tests, and deployment scripts.
- Following best practices in security and standards.
- Familiarity with swapping, staking, and liquidity farming contracts.
- Design, develop, test, and deploy Ethereum-compatible smart contracts using Solidity.
- Integrate smart contract solutions within robotics identity layers, ensuring compatibility and performance.
- Conduct comprehensive audits and tests of smart contracts to identify and mitigate security vulnerabilities.
- Maintain comprehensive technical documentation and ensure code transparency.
- Stay updated with emerging blockchain technologies, providing strategic recommendations on technology adoption.
Requirements
- Proven experience developing and deploying Solidity smart contracts in production environments.
- Strong understanding of blockchain fundamentals, Ethereum architecture, and decentralized applications (dApps).
- Familiarity with tools such as Hardhat, Foundry, or similar smart contract development frameworks.
- Experience performing smart contract audits and code reviews.
- Solid understanding of cryptographic protocols and secure coding practices.
- Excellent problem-solving skills and ability to work independently and collaboratively in a fast-paced environment.
- Experience implementing smart contracts utilizing the latest EIPs (having experience writing / reviewing them is a major plus!).
- 2–3 years of professional experience writing EVM-compatible smart contracts, with a total of 3-5+ years of software development experience.
- Knowledge of industry-standard security practices for DeFi protocols.
- Experience with technologies such as Solidity, Ethers.js, Hardhat, OpenZeppelin, and GraphQL. Familiarity with Circom is a plus.
- Ability to work extended hours when necessary — preferably with startup experience.
What We Offer:
- Competitive remuneration package.
- Full-time, remote
- Working Days: Monday - Friday
- Paid lunch and gym benefits.
- Dynamic and innovative work environment in the fintech industry.