Blockchain Developer (DeFi Focus)

Placements24; Klerksdorp; On-site; ZAR 600,000 - 1,200,000; Full time

Benefits offered by this job

Competitive salary

Stock options

Health benefits

Generous PTO

Flexible hours

Dev budget

Team lunches

Job summary

Placements24 is seeking a Blockchain Developer in Klerksdorp, North West, to help build and scale DeFi platforms. The role focuses on secure smart contracts, dApps, and integration with major networks. You will work with Solidity, Ethereum tools, and DeFi primitives, with 2+ years of experience.

A bachelor’s degree is required; front-end familiarity is a plus. Join a fast-paced FinTech startup offering stock options and flexible hours.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field.
• 2+ years of professional experience in blockchain development with DeFi focus.
• Proficiency in Solidity and Ethereum development tools (Hardhat, Truffle, Ethers.js).
• Understanding of DeFi primitives and protocol mechanics.
• Experience deploying smart contracts on testnets/mainnets.
• Front-end familiarity (React, Vue.js) is a plus.
• Knowledge of security best practices for smart contract development.

Responsibilities

• Develop, test, and deploy smart contracts for DeFi protocols (lending, borrowing, DEXs, yield farming).
• Build and maintain decentralized applications (dApps) and backend services.
• Integrate with blockchain networks (Ethereum, Binance Smart Chain, Solana).
• Optimize smart contracts for gas efficiency and security.
• Collaborate with product managers and designers to translate ideas into functional applications.
• Conduct code reviews and participate in architectural discussions.
• Research and implement new blockchain technologies and DeFi trends.
• Troubleshoot and resolve issues in production environments.
• Contribute to the blockchain strategy and roadmap.

Skills

Solidity

Ethereum tools

DeFi primitives

Blockchain dev experience

Education

Bachelor's degree in CS/SE

Tools

Hardhat

Truffle

Ethers.js

React/Vue (front-end)

Job description

About the Role

Our client is a fast-paced FinTech startup at the cutting edge of decentralized finance (DeFi). They are seeking a talented and motivated Blockchain Developer to join their core development team in Klerksdorp, North West. This role will be instrumental in building and scaling our innovative DeFi platforms, focusing on creating secure, efficient, and user-friendly decentralized applications. You will have the opportunity to work with the latest blockchain technologies and contribute directly to products that are reshaping the financial landscape. The ideal candidate is passionate about cryptocurrency, DeFi protocols, and has a strong understanding of smart contract development and blockchain architecture. If you are eager to make a significant impact in a rapidly growing sector, this is the opportunity for you.

Key Responsibilities

• Develop, test, and deploy smart contracts for various DeFi protocols (e.g., lending, borrowing, DEXs, yield farming).
• Build and maintain decentralized applications (dApps) and their associated backend services.
• Integrate with various blockchain networks (e.g., Ethereum, Binance Smart Chain, Solana).
• Optimize smart contracts for gas efficiency and security.
• Collaborate with product managers and designers to translate ideas into functional applications.
• Conduct code reviews and participate in architectural discussions.
• Research and implement new blockchain technologies and DeFi trends.
• Troubleshoot and resolve issues in production environments.
• Contribute to the overall blockchain strategy and roadmap.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 2+ years of professional experience in blockchain development, with a strong focus on DeFi.
• Proficiency in Solidity and experience with Ethereum development tools (e.g., Hardhat, Truffle, Ethers.js).
• Understanding of DeFi primitives and common protocol mechanics.
• Experience building and deploying smart contracts on testnets and mainnets.
• Familiarity with front-end development (React, Vue.js) is a plus.
• Knowledge of security best practices for smart contract development.
• Strong problem-solving skills and a proactive attitude.
• Ability to work independently and as part of a team in Klerksdorp, North West.

Benefits

• Competitive salary and attractive stock options package.
• Comprehensive health and wellness benefits.
• Generous paid time off and flexible working hours.
• Opportunity to work on groundbreaking DeFi products.
• Dynamic and fast-paced startup environment.
• Professional development budget for conferences and courses.
• Regular team lunches and social events.
• Be part of a mission-driven company making a real impact in finance.