Senior Blockchain Engineer — Smart Contracts & dApps

Placements24; East London; Hybrid; ZAR 900,000 - 1,300,000; Full time

Benefits offered by this job

Competitive salary

Innovative projects

Professional development

Collaborative environment

Impactful solutions

Job summary

Placements24 is seeking a Senior Blockchain Developer for our East London, Eastern Cape team. You will design, develop, and deploy secure smart contracts and dApps, collaborating with cross-functional teams to deliver scalable blockchain solutions.

You will mentor juniors, review code, and stay ahead of industry advances in cryptography and consensus methods. A strong focus on security and performance is essential.

Qualifications

• Bachelor's degree or equivalent practical experience in CS/Engineering.
• Proficiency in blockchain concepts: consensus, distributed ledgers, cryptography.
• Experience with smart contracts and dApps.
• Familiarity with frontend tech (React, Vue, Angular) for dApp integration is a plus.

Responsibilities

• Design, develop, test, and deploy secure smart contracts on Ethereum, BSC, Solana.
• Build and maintain decentralized applications with smart contract backends.
• Collaborate with product managers, designers, and engineers to define features.
• Conduct code reviews, security audits, and performance optimizations for smart contracts.
• Stay updated on blockchain tech, cryptography, and consensus mechanisms.

Skills

Solidity

Vyper

Rust

Education

Bachelor's degree in Computer Science/Engineering

Tools

Truffle

Hardhat

Web3.js

Ethers.js

Job description

Placements24 is seeking a Senior Blockchain Developer for our East London, Eastern Cape team. You will design, develop, and deploy secure smart contracts and dApps, collaborating with cross-functional teams to deliver scalable blockchain solutions.

You will mentor juniors, review code, and stay ahead of industry advances in cryptography and consensus methods. A strong focus on security and performance is essential.