Senior Smart Contract Engineer

Placements24; Southampton; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Competitive salary

Fully remote with flexible hours

Health and wellness benefits

Professional growth opportunities

Home office allowance

Industry-conference attendance

Team events

Job summary

Placements24's client in the Web3 space is seeking a Senior Smart Contract Engineer to drive secure, scalable contract development from concept through deployment.

The role is fully remote with a distributed team. You will design, test, review, and optimize Solidity contracts, contributing to the architecture and roadmap of cutting-edge blockchain products.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 5+ years total software development, with 3+ years in smart contract development.
• Proficiency in Solidity and frameworks (Hardhat, Truffle, Foundry).
• Strong understanding of blockchain concepts, cryptography, and token standards (ERC-20, ERC-721).
• Experience with Web3.js, Ethers.js, and backend languages (Node.js, Python, Go).
• Experience with Git and secure coding practices.

Responsibilities

• Develop, test, and deploy high-quality smart contracts on Ethereum using Solidity.
• Write clean, gas-efficient code for complex dApps.
• Perform code reviews, security audits, and vulnerability assessments.
• Collaborate with product managers and engineers to define requirements.
• Implement unit and integration tests for smart contracts.
• Optimize performance and gas usage of contracts.
• Stay updated on blockchain security best practices.
• Document smart contract logic, APIs, and deployment procedures.

Skills

Solidity

Hardhat

Truffle

Foundry

Web3.js

Ethers.js

Node.js

Python

Go

Git

Education

Bachelor's degree in Computer Science or related field

Job description

About the Role

Our client is a rapidly growing startup at the forefront of Web3 innovation, and they are seeking an experienced Senior Smart Contract Engineer to join their fully remote team. This role is ideal for a passionate developer who wants to build secure, efficient, and scalable smart contracts that power the next generation of decentralized applications. You will play a crucial role in the entire development lifecycle, from concept to deployment and maintenance, contributing significantly to our client's success in the Crypto & Blockchain space. As a fully remote position, you will have the flexibility to work from anywhere, collaborating with a globally distributed team of talented individuals. If you thrive in a fast-paced, innovative environment and have a deep understanding of smart contract development, this is the perfect opportunity for you to make a substantial impact. We are particularly interested in candidates with a strong theoretical foundation and practical experience in building robust smart contracts.

Key Responsibilities

• Develop, test, and deploy high-quality smart contracts on blockchain platforms like Ethereum using Solidity.
• Write clean, maintainable, and gas-efficient code for complex decentralized applications (dApps).
• Perform rigorous code reviews, security audits, and vulnerability assessments of smart contracts.
• Collaborate with product managers, designers, and other engineers to define smart contract requirements and specifications.
• Implement and maintain unit tests and integration tests for smart contracts to ensure reliability.
• Optimize smart contract performance and gas usage.
• Stay current with the latest trends, tools, and best practices in smart contract development and blockchain security.
• Troubleshoot and debug issues related to smart contracts and blockchain interactions.
• Contribute to the architectural design and technical roadmap of new blockchain products and features.
• Document smart contract logic, APIs, and deployment procedures clearly.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Minimum of 5 years of professional software development experience, with at least 3 years specifically focused on smart contract development.
• Proficiency in Solidity and experience with smart contract development frameworks (e.g., Hardhat, Truffle, Foundry).
• Strong understanding of blockchain principles, including consensus mechanisms, cryptography, and token standards (ERC-20, ERC-721, etc.).
• Experience with common smart contract vulnerabilities and mitigation techniques.
• Familiarity with Web3.js, Ethers.js, or similar libraries for interacting with blockchains.
• Proficiency in at least one backend programming language (e.g., Node.js, Python, Go).
• Experience with version control systems like Git.
• Excellent problem-solving skills and a proactive approach to identifying and resolving issues.
• Strong communication skills for effective collaboration within a remote team, supporting our Randburg, Gauteng, ZA talent pool.

Benefits

• Competitive salary and potential for equity options.
• Fully remote work environment with flexible hours.
• Generous health and wellness benefits.
• Opportunities for professional growth and attending industry conferences.
• Allowance for home office setup and ongoing expenses.
• Work on exciting and innovative projects in the rapidly evolving Web3 space.
• Collaborative and supportive team culture.
• Chance to shape the future of decentralized applications in the Crypto & Blockchain domain.
• Regular virtual team events and communication.