Senior Blockchain Security Engineer

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

About the Role

Our client is a leader in providing secure and innovative blockchain solutions, and they are looking for a highly skilled Senior Blockchain Security Engineer to join their dedicated team in Rustenburg, North West. This critical role involves ensuring the utmost security of our blockchain platforms, smart contracts, and associated infrastructure. You will be responsible for identifying vulnerabilities, developing robust security strategies, and implementing protective measures against evolving threats in the cryptocurrency space. The ideal candidate possesses a deep understanding of cybersecurity principles, extensive experience with blockchain technologies, and a proactive mindset towards risk mitigation. If you are passionate about safeguarding decentralized systems and have a proven track record in security engineering, this is an exceptional opportunity to make a significant impact in a high-growth industry. We foster a culture of innovation and continuous improvement in security.

Key Responsibilities

• Conduct comprehensive security audits and penetration testing 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 software development lifecycle.
• 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.

Requirements

• 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 specialization in blockchain security.
• In-depth knowledge of smart contract security vulnerabilities (e.g., reentrancy, integer overflows, access control issues).
• Proficiency in smart contract development languages (e.g., Solidity) and blockchain platforms (e.g., Ethereum).
• Experience with security analysis tools, penetration testing methodologies, and vulnerability assessment.
• Strong understanding of 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, with the ability to explain complex security issues clearly.
• Proven ability to work independently and lead security initiatives.
• Relevant security certifications (e.g., CISSP, OSCP) are highly desirable.
• Passion for blockchain technology and a commitment to maintaining its integrity.

Benefits

• Highly competitive salary and comprehensive benefits package.
• Significant bonus potential and stock options.
• Opportunity to work on impactful security challenges in the blockchain space.
• Continuous learning and professional development opportunities.
• A stimulating and collaborative work environment.
• Flexible work arrangements.
• Generous vacation and leave policy.
• Access to state-of-the-art security tools and resources.
• Contribute to building a more secure decentralized future.
• Regular team-building events and company retreats.