Blockchain Developer - DeFi Specialist

Placements24; Paarl; Hybrid; ZAR 600,000 - 1,000,000; Full time

Benefits offered by this job

Fully remote

Flexible hours

Global collaboration

Job summary

Placements24 is seeking a talented Blockchain Developer with a DeFi focus to design, implement, and optimize smart contracts across networks. This remote-first role supports scalable DeFi applications and security.

You will use Solidity, Web3 libraries, and frameworks such as Hardhat or Truffle, collaborating with a global team from anywhere, including Paarl, Western Cape. A CS/Engineering background and 2+ years in DeFi are preferred.

Qualifications

• Bachelor's degree in CS/Engineering or equivalent practical experience.
• 2+ years of professional blockchain development experience with DeFi.
• Proficiency in Solidity and EVM-compatible chains.
• Hands-on with DeFi protocols (AMMs, stablecoins, yield optimizers).
• Familiarity with Web3 libraries (Web3.js, Ethers.js) and frameworks (Hardhat, Truffle).
• Understanding tokenomics, financial math, and smart contract security best practices.

Responsibilities

• Develop, test, and deploy smart contracts for DeFi apps (DEXs, lending, yield protocols).
• Write secure, gas-optimized Solidity code.
• Collaborate with cross-functional teams to implement DeFi features.
• Integrate with networks (Ethereum, Polygon, BSC) and oracles.
• Conduct code reviews and participate in architecture discussions.
• Monitor deployed contracts and address issues or vulnerabilities.
• Stay updated on DeFi security trends and new protocols.
• Contribute to technical docs and team knowledge sharing.

Skills

Blockchain development

DeFi protocols

Solidity

Web3.js

Ethers.js

Hardhat/Truffle

Education

Bachelor's degree in Computer Science / Engineering

Tools

Hardhat

Truffle

Ethereum

Job description

About the Role

Our client, an innovative startup at the forefront of decentralized finance (DeFi), is seeking a talented and driven Blockchain Developer with a specialization in DeFi protocols. This role is crucial for developing, implementing, and optimizing smart contracts that power a new generation of financial applications. You will be instrumental in building secure, efficient, and scalable DeFi solutions on various blockchain networks. This is a fully remote position, allowing you to contribute your expertise from anywhere, bringing a global perspective to our team. If you are passionate about the potential of DeFi and thrive in a fast-paced, remote-first environment, this opportunity based within the innovation ecosystem of Paarl, Western Cape , is perfect for you. Join us in building the future of finance.

Key Responsibilities

• Develop, test, and deploy robust smart contracts for DeFi applications (e.g., DEXs, lending protocols, yield farming).
• Write secure, efficient, and gas-optimized Solidity code.
• Collaborate with cross-functional teams to define and implement new DeFi features and products.
• Integrate with various blockchain networks (e.g., Ethereum, Polygon, Binance Smart Chain) and oracles.
• Conduct code reviews and participate in architectural discussions to ensure best practices.
• Monitor and maintain deployed smart contracts, addressing any issues or vulnerabilities.
• Stay up-to-date with the latest trends, innovations, and security challenges in the DeFi space.
• Research and implement new blockchain technologies and protocols relevant to DeFi.
• Contribute to technical documentation and knowledge sharing within the team.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 2+ years of professional experience in blockchain development, with a strong focus on DeFi.
• Proficiency in Solidity programming language and experience with EVM-compatible chains.
• Hands-on experience developing and deploying DeFi protocols (e.g., AMMs, stablecoins, yield optimizers).
• Familiarity with Web3 libraries (Web3.js, Ethers.js) and development frameworks (Hardhat, Truffle).
• Understanding of tokenomics, financial mathematics, and smart contract security best practices.
• Strong problem-solving skills and the ability to work independently in a remote setting.
• Excellent communication and collaboration skills for remote teamwork.
• Based within or able to work effectively remotely from the Paarl, Western Cape region.

Benefits

• Fully remote position with flexible working hours.
• Competitive salary and potential equity options.
• Opportunity to work at the cutting edge of decentralized finance.
• Collaborate with a passionate and experienced team.
• Continuous learning and professional development support.
• Impactful role in shaping the future of financial services.
• Be part of a rapidly growing and innovative sector.