Remote Senior Blockchain Security Engineer

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

Benefits offered by this job

Remote work

Professional development

Job summary

Placements24 is seeking a Senior Blockchain Security Engineer to join a global, remote-first team shaping the future of decentralized technology. You will drive security audits, design robust cryptographic defenses, and embed security throughout the development lifecycle, from design to deployment.

The ideal candidate has 6+ years in cybersecurity with a strong blockchain specialty, hands-on experience auditing smart contracts, performing pentests, and using Solidity, Rust, and Go.

Qualifications

• Bachelor's degree in CS, Cybersecurity, or related field.
• 6+ years in cybersecurity with blockchain security specialization.
• Experience in smart contract auditing, pentesting, and vulnerability analysis.
• Deep understanding of blockchain concepts, cryptography, and common attack vectors.
• Proficiency with security assessment tools and blockchain languages (Solidity, Rust, Go).

Responsibilities

• Conduct security assessments of blockchain protocols, smart contracts, and dApps.
• Identify vulnerabilities, threats, and risks in blockchain tech.
• Perform penetration testing and code reviews to remediate flaws.
• Design security architectures for new blockchain projects.
• Respond to security incidents and perform forensics.
• Collaborate with teams to ensure secure deployment of systems.
• Develop security tooling and automation for monitoring.

Skills

Blockchain security

Smart contract auditing

Penetration testing

Threat modeling

Security tooling proficiency

Cryptography basics

Communication skills

Education

Bachelor's degree in Computer Science, Cybersecurity, or related field

Tools

Solidity

Rust

Go

Job description

Placements24 is seeking a Senior Blockchain Security Engineer to join a global, remote-first team shaping the future of decentralized technology. You will drive security audits, design robust cryptographic defenses, and embed security throughout the development lifecycle, from design to deployment.

The ideal candidate has 6+ years in cybersecurity with a strong blockchain specialty, hands-on experience auditing smart contracts, performing pentests, and using Solidity, Rust, and Go.