Solidity Pro: Fintech Blockchain & Smart Contracts Engineer

Placements24; Klerksdorp; On-site; ZAR 700,000 - 1,200,000; Full time

Benefits offered by this job

Competitive salary

Health benefits

Learning opportunities

Modern office

Job summary

Placements24 is seeking a skilled Blockchain Developer in Klerksdorp, North West to design, develop and audit production-grade smart contracts. You will work on Ethereum-compatible platforms using Solidity, collaborate with product teams, and ensure secure, gas-efficient code.

The role requires strong knowledge of EVM, Hardhat/Truffle/Foundry, and best practices in decentralised finance. A bachelor’s degree or equivalent experience is expected, with excellent teamwork and communication.

Qualifications

• Proven production-ready smart contract experience.
• Strong grasp of Solidity and EVM nuances.
• Familiar with security best practices and audits.

Responsibilities

• Design, develop, test, and deploy smart contracts on Ethereum-compatible platforms.
• Write clean, secure Solidity code and optimize for gas efficiency.
• Collaborate with product managers to define requirements.
• Audit and fix vulnerabilities in smart contracts.
• Integrate contracts with front-end and backend systems.
• Stay updated on blockchain developments and best practices.

Skills

Solidity

Ethereum

EVM

Smart contract security

Git

Analytical thinking

Team collaboration

Education

Bachelor's degree in CS/SE or related field

Tools

Hardhat

Truffle

Foundry

Job description

Placements24 is seeking a skilled Blockchain Developer in Klerksdorp, North West to design, develop and audit production-grade smart contracts. You will work on Ethereum-compatible platforms using Solidity, collaborate with product teams, and ensure secure, gas-efficient code.

The role requires strong knowledge of EVM, Hardhat/Truffle/Foundry, and best practices in decentralised finance. A bachelor’s degree or equivalent experience is expected, with excellent teamwork and communication.