Lead Smart Contract Developer

Placements24; Kimberley; Hybrid; CAD 180,000 - 280,000; Full time

Benefits offered by this job

Stock options

Medical and dental coverage

Professional development budget

Hybrid work model

Job summary

Placements24 seeks an experienced Lead Smart Contract Developer to guide DeFi engineering efforts from Kimberley. You will design, develop, test, and deploy high-quality contracts on Ethereum/Polygon, mentor a team, and shape technical direction with a security-first mindset.

You will collaborate with product and engineering peers to translate business needs into technical specs, evaluate new blockchain tools, and drive scalable, gas-efficient solutions.

Qualifications

• Master's degree in Computer Science, Software Engineering, or a related field.
• 7+ years of professional software development experience, with at least 5 years in blockchain/smart contract development.
• Expertise in Solidity and frameworks such as Hardhat, Truffle or Foundry.
• Deep understanding of EVM, gas optimization and blockchain security principles.
• Proven track record architecting and leading complex DeFi protocols or dApps.
• Strong knowledge of smart contract vulnerabilities and mitigation strategies.
• Experience with security auditing and formal verification is desirable.
• Proficiency in JavaScript/TypeScript and Node.js is a plus.

Responsibilities

• Lead the design, development, testing, and deployment of complex smart contracts on Ethereum/Polygon.
• Architect secure, gas-efficient, and scalable contract solutions.
• Set coding standards, best practices, and security protocols for development.
• Mentor and guide a team of smart contract developers.
• Conduct thorough code reviews ensuring quality, security, and performance.
• Collaborate with product and other engineering teams to translate requirements into specs.
• Research and evaluate new blockchain tech to improve processes.
• Oversee integration of contracts with front-end and backend services.
• Troubleshoot complex on-chain issues and contribute to technical strategy.

Skills

Leadership

Communication

Team mentoring

Education

Master's degree in CS/SE or related

Tools

Solidity

Hardhat

Truffle

Foundry

EVM

JavaScript

TypeScript

Node.js

Job description

About the Role

Our client, a leading innovator in decentralized finance (DeFi), is seeking an experienced and visionary Lead Smart Contract Developer to guide their engineering efforts. This role, based in Kimberley , offers a hybrid work model, allowing for collaboration in our office and the flexibility of remote work. You will be responsible for the design, development, and deployment of high-quality, secure, and efficient smart contracts that form the backbone of our DeFi products. This leadership position requires not only deep technical expertise but also the ability to mentor a team, define best practices, and contribute to the strategic technical direction of the company. If you are passionate about blockchain technology and have a proven track record of delivering robust smart contract solutions,

Key Responsibilities

• Lead the design, development, testing, and deployment of complex smart contracts on platforms such as Ethereum and Polygon.
• Architect and implement secure, gas-efficient, and scalable smart contract solutions.
• Establish and enforce coding standards, best practices, and security protocols for smart contract development.
• Mentor and guide a team of smart contract developers, fostering their growth and productivity.
• Conduct thorough code reviews, ensuring code quality, security, and performance.
• Collaborate with product management and other engineering teams to translate business requirements into technical specifications.
• Research and evaluate new blockchain technologies, tools, and methodologies to improve development processes.
• Oversee the integration of smart contracts with front-end applications and other backend services.
• Troubleshoot and resolve complex issues related to smart contract functionality and on-chain operations.
• Contribute to the overall technical strategy and roadmap for the blockchain initiatives.

Requirements

• Master's degree in Computer Science, Software Engineering, or a related field.
• 7+ years of professional software development experience, with a minimum of 5 years focused on blockchain and smart contract development.
• Expertise in Solidity and extensive experience with smart contract development frameworks (e.g., Hardhat, Truffle, Foundry).
• Deep understanding of the Ethereum Virtual Machine (EVM), gas optimization, and blockchain security principles.
• Proven experience architecting and leading the development of complex DeFi protocols or dApps.
• Strong knowledge of common smart contract vulnerabilities and mitigation strategies.
• Experience with security auditing and formal verification techniques is highly desirable.
• Proficiency in JavaScript/TypeScript and backend development (Node.js) is a plus.
• Excellent leadership, communication, and interpersonal skills.
• Ability to thrive in a fast-paced, innovative environment.

Benefits

Our client offers a highly attractive salary, significant stock options, comprehensive medical and dental coverage, and a generous budget for professional development. You will have the opportunity to lead impactful projects, work with a talented and driven team, and shape the future of decentralized finance. The hybrid work model in Kimberley provides the flexibility to balance your work and life effectively.