Remote Blockchain Security Engineer — Protect Crypto Assets

Placements24; Benoni; Hybrid; ZAR 900,000 - 1,500,000; Full time

Benefits offered by this job

Remote work flexibility

Health, dental, vision insurance

Career development opportunities

Job summary

Placements24 is seeking a Blockchain Security Engineer to safeguard our blockchain infrastructure, smart contracts, and digital assets. This remote role may involve operations linked to Benoni, with a focus on threat detection, prevention, and incident response.

You will audit contracts, networks, and tools, implement security best practices, and collaborate with developers to integrate security across the software lifecycle. A proactive, security-first mindset is essential.

Qualifications

• Bachelor's degree in CS/Cybersecurity or related field.
• 3–5 years in cybersecurity with blockchain security focus.
• Strong knowledge of smart contract vulnerabilities (reentrancy, overflows).
• Experience with security auditing tools and methodologies for blockchain apps.
• Proficiency in Solidity, Go, Rust.

Responsibilities

• Conduct security audits and penetration testing of smart contracts, networks, and related apps.
• Develop and implement security best practices and tooling for blockchain environments.
• Monitor networks for suspicious activity, exploits, and breaches.
• Respond to incidents, investigate root causes, and implement fixes.
• Collaborate with development teams to embed security in SDLC.
• Stay current with emerging threats and security tech in blockchain/crypto.

Skills

Blockchain security

Smart contracts

Auditing tools

Solidity

Go

Rust

Cryptography

Incident response

Network security

Education

Bachelor's degree in Computer Science/CCybersecurity

Tools

Security auditing tools

Job description

Placements24 is seeking a Blockchain Security Engineer to safeguard our blockchain infrastructure, smart contracts, and digital assets. This remote role may involve operations linked to Benoni, with a focus on threat detection, prevention, and incident response.

You will audit contracts, networks, and tools, implement security best practices, and collaborate with developers to integrate security across the software lifecycle. A proactive, security-first mindset is essential.