Solidity Engineer at dappOS

Job Description

Key Responsibilities

• Conduct comprehensive research on the development and testing methodologies for smart contracts, including best practices for code quality, security audits, and performance optimization.
• Perform in-depth analysis of smart contract systems, focusing on virtual machines (e.g., Ethereum Virtual Machine), programming languages (e.g., Solidity), and technical specifications to identify potential vulnerabilities or inefficiencies.
• Design and define smart contracts based on business segmentation, creating modular protocols that can be tested and verified for accuracy and reliability in specific use cases.
• Develop and implement cross-chain interaction mechanisms using smart contracts, ensuring compatibility with multiple blockchain platforms and analyzing the coding implementation of cross-chain functions for robustness.
• Utilize frameworks and tools such as web3.js/web3j, Golang, Hardhat, and OpenZeppelin to conduct rigorous verification testing on private/test chains, debugging and optimizing existing contracts for scalability and security.
• Collaborate with developers, auditors, and product teams to ensure smart contracts meet functional, technical, and compliance requirements while maintaining high standards of code quality and security.
• Document contract logic, testing procedures, and integration workflows to facilitate knowledge sharing and future maintenance of blockchain projects.
• Stay updated on emerging trends and advancements in blockchain technology, contributing to the evolution of smart contract development practices and standards.
• Provide technical support and mentorship to junior engineers, ensuring adherence to secure coding standards and best practices.
• Participate in the design and implementation of blockchain-based solutions for enterprise applications, including decentralized finance (DeFi) and non-fungible token (NFT) platforms.

Job Requirements

• Proficiency in Solidity programming language and experience in developing, testing, and deploying smart contracts on blockchain platforms such as Ethereum or Binance Smart Chain.
• Strong understanding of blockchain fundamentals, including consensus mechanisms, cryptographic principles, and decentralized architecture, with a focus on cross-chain interoperability solutions.
• Hands-on experience with development frameworks like Hardhat and OpenZeppelin, as well as tools for testing and debugging smart contracts (e.g., Truffle, Ganache, Remix).
• Knowledge of cross-chain protocols and their implementation in smart contracts, including the ability to analyze and optimize functions for secure multi-chain interactions.
• Experience with programming languages such as Golang, JavaScript, or Python to build integrations, automate testing processes, and enhance contract functionality.
• Ability to work with web3.js/web3j libraries for interacting with blockchain networks, writing and testing smart contract interfaces, and implementing decentralized application features.
• Excellent problem-solving skills and attention to detail, with a proven track record of identifying and resolving complex issues in smart contract development and testing.
• Collaborative mindset and communication skills to effectively work with cross-functional teams, present technical findings, and document contract-related workflows.
• Preferred qualifications include a bachelor’s or master’s degree in computer science, software engineering, or a related field, along with certifications in blockchain development or smart contract security.
• Experience in auditing smart contracts for security vulnerabilities, compliance with standards like ERC-20/ERC-721, and familiarity with tools such as Slither or MythX.