Blockchain Developer - dApp and DeFi Focus

Placements24; LegKraal Gate; Hybrid; ZAR 600,000 - 900,000; Full time

Benefits offered by this job

Fully remote work arrangement

Health and wellness benefits

Career growth in DeFi sector

Challenging projects with cutting-edge

Professional development support

Regular virtual team events

Job summary

Placements24 is seeking a talented Blockchain Developer for a fully remote role focused on DeFi and smart contracts. You will build secure contracts, deploy across networks, and integrate with front-end applications while collaborating with a distributed team.

You should bring 2–4 years of blockchain experience, Solidity expertise, and familiarity with Hardhat/Truffle/Foundry. The role offers remote work from South Africa and globally, with opportunities to advance in a rapidly growing fintech

Qualifications

• Bachelor's degree or equivalent practical experience in Computer Science or Software Engineering.
• 2–4 years of blockchain development with focus on smart contracts and dApps.
• Proficiency in Solidity and frameworks like Hardhat, Truffle or Foundry.
• Understanding of DeFi protocols, concepts (AMMs, lending) and token standards (ERC-20, ERC-721).
• Familiarity with Web3 libraries (Web3.js, Ethers.js) and interacting with blockchain nodes.
• Experience with Git for version control.
• Strong problem-solving skills and ability to work independently.
• Excellent communication and collaboration for remote teams.

Responsibilities

• Develop, test, and deploy secure smart contracts on Ethereum, BSC, Polygon and others.
• Build and maintain user-focused dApps with strong UX and performance.
• Integrate smart contracts with front-end interfaces and backend services.
• Participate in design and architecture of new DeFi protocols and features.
• Conduct code reviews and ensure best practices in smart contract development.
• Identify and fix security vulnerabilities and performance bottlenecks.
• Stay updated with latest blockchain tech, DeFi trends and security practices.
• Collaborate with product managers, designers and engineers in a remote setting.
• Troubleshoot production issues and contribute to technical documentation.

Skills

Blockchain dev

Smart contracts

DApps

Solidity

Web3.js

Ethers.js

Git

Remote work

Team collaboration

Education

Bachelor's degree in CS/SE

Tools

Hardhat

Truffle

Foundry

Job description

About the Role

Our client, a cutting-edge fintech company specializing in decentralized finance (DeFi), is actively seeking a talented Blockchain Developer to join their fully remote team. This role is central to the development and enhancement of innovative dApps and DeFi protocols that are shaping the future of financial services. You will be responsible for writing secure, efficient, and well-tested smart contracts and integrating them with front-end applications. The ideal candidate has a strong foundation in blockchain development, particularly with smart contract languages like Solidity, and a passion for DeFi. You will work in a highly collaborative, fast-paced environment, contributing to all phases of the development lifecycle. This is a fully remote position, allowing you to contribute your expertise from **Mahikeng, North West**, or anywhere globally, as long as you can effectively collaborate with a distributed team. The focus is on building high-quality, user-centric decentralized applications.

Key Responsibilities

• Develop, test, and deploy secure smart contracts on various blockchain networks (e.g., Ethereum, Binance Smart Chain, Polygon).
• Build and maintain decentralized applications (dApps) with a focus on user experience and performance.
• Integrate smart contracts with front-end interfaces and backend services.
• Participate in the design and architecture of new DeFi protocols and features.
• Conduct thorough code reviews and ensure adherence to best practices in smart contract development.
• Identify and address potential security vulnerabilities and performance bottlenecks.
• Stay up-to-date with the latest developments in blockchain technology, DeFi, and smart contract security.
• Collaborate with product managers, designers, and other engineers in a remote setting.
• Troubleshoot and resolve issues in production environments.
• Contribute to technical documentation and knowledge sharing within the team.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• 2-4 years of experience in blockchain development, with a strong focus on smart contracts and dApps.
• Proficiency in Solidity and experience with development frameworks like Hardhat, Truffle, or Foundry.
• Understanding of DeFi protocols, concepts (e.g., AMMs, lending protocols, yield farming), and token standards (ERC-20, ERC-721).
• Familiarity with Web3 libraries (e.g., Web3.js, Ethers.js) and interacting with blockchain nodes.
• Experience with Git for version control.
• Strong problem-solving skills and the ability to work independently.
• Excellent communication and collaboration skills for a remote team environment.
• Passion for decentralized finance and blockchain technology.

Benefits

• A competitive salary of ** R per annum**.
• Comprehensive health and wellness benefits.
• Fully remote work arrangement, offering maximum flexibility.
• Opportunities for significant career growth in the booming DeFi sector.
• Be part of an innovative and disruptive fintech company.
• Access to cutting-edge technologies and challenging projects.
• Support for professional development and continuous learning.
• Regular virtual team social events.