Senior Blockchain Security Architect

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

Benefits offered by this job

Competitive salary

Stock options

Flexible work

Job summary

Placements24 is seeking a Senior Blockchain Security Engineer in Rustenburg to safeguard blockchain platforms, smart contracts, and infrastructure. You will identify vulnerabilities, develop robust security strategies, and implement protective measures in a fast-growing crypto space.

The role requires deep cybersecurity expertise, blockchain experience, and a proactive risk-mitigation mindset. You will lead security initiatives and collaborate across teams to embed security throughout the

Qualifications

• Bachelor's or Master's degree in Computer Science, Cybersecurity, or a related field.
• Minimum of 5 years of experience in cybersecurity with a strong blockchain security focus.
• In-depth knowledge of smart contract security vulnerabilities (reentrancy, overflows, access control).
• Proficiency in Solidity and Ethereum.
• Experience with security analysis tools, penetration testing methodologies, and vulnerability assessments.
• Strong cryptography, network security, and secure coding practices.
• Familiarity with security frameworks and compliance standards.
• Excellent analytical, problem-solving, and investigative skills.
• Strong communication and interpersonal skills; ability to explain complex issues clearly.
• Proven ability to work independently and lead security initiatives.
• Security certifications (e.g., CISSP, OSCP) are desirable.
• Passion for blockchain technology and risk mitigation.

Responsibilities

• Conduct comprehensive security audits and pentests of smart contracts and dApps.
• Design, develop, and implement security frameworks for blockchain networks and applications.
• Identify, analyze, and mitigate security vulnerabilities and threats.
• Develop and maintain security monitoring tools and incident response procedures.
• Collaborate with development teams to embed security best practices throughout the SDLC.
• Research emerging blockchain security threats and develop proactive defense strategies.
• Create and enforce security policies and guidelines for blockchain operations.
• Perform code reviews with a focus on security implications.
• Stay current with the latest advancements in blockchain security and cybersecurity trends.
• Provide expert guidance on security best practices to internal teams and external partners.
• Contribute to the design of secure blockchain architectures.
• Respond to and manage security incidents effectively.

Skills

Security audits

Penetration testing

Threat analysis

Security leadership

Secure coding

Education

Bachelor's or Master's in CS/Cybersecurity

Tools

Solidity

Ethereum

Job description

Placements24 is seeking a Senior Blockchain Security Engineer in Rustenburg to safeguard blockchain platforms, smart contracts, and infrastructure. You will identify vulnerabilities, develop robust security strategies, and implement protective measures in a fast-growing crypto space.

The role requires deep cybersecurity expertise, blockchain experience, and a proactive risk-mitigation mindset. You will lead security initiatives and collaborate across teams to embed security throughout the