Senior Blockchain Security Specialist

Placements24; Polokwane; Hybrid; ZAR 900,000 - 1,600,000; Full time

Benefits offered by this job

Medical aid

Retirement fund

Hybrid work model

Professional development

Job summary

Placements24 in Polokwane, Limpopo, South Africa, is seeking a Senior Blockchain Security Specialist to safeguard blockchain infrastructure and smart contracts. This hybrid position combines office collaboration with remote flexibility to protect digital assets.

The ideal candidate will possess deep knowledge of blockchain security, vulnerability analysis, and risk management, with hands-on experience in secure coding for DApps and leading security initiatives.

Qualifications

• Bachelors or Masters in CS, Cybersecurity, IT or related field.
• Minimum 6 years in cybersecurity with at least 3 years in blockchain security.
• Deep knowledge of blockchain protocols, cryptography and consensus.
• Proven smart contract auditing and vulnerability analysis experience.
• Experience with penetration testing methods and tools.
• Familiarity with security frameworks and compliance standards.

Responsibilities

• Conduct security assessments of blockchain platforms, protocols and smart contracts.
• Perform penetration testing, vulnerability scanning and code reviews.
• Develop and implement security policies and controls for blockchain environments.
• Investigate and respond to security incidents with remediation strategies.
• Stay updated on threats and mitigation techniques in blockchain tech.
• Design security architectures for new blockchain projects.
• Advise development teams on secure coding for smart contracts and DApps.
• Manage and maintain security tools and technologies.
• Contribute to security awareness training for staff.
• Collaborate with internal and external stakeholders on security matters.

Skills

Blockchain security

Penetration testing

Smart contract auditing

Cryptography

Python scripting

Vulnerability analysis

Incident response

Security architecture

Education

Bachelor's or Master's in CS/IT/Cybersecurity

Tools

Static/dynamic analysis tools

Smart contract auditing tools

Job description

About the Role

Our client, a prominent leader in the Crypto & Blockchain space, is seeking a highly experienced Senior Blockchain Security Specialist to join their security team in **Polokwane, Limpopo**. This hybrid role offers the advantage of both collaborative office work and remote flexibility. The Senior Blockchain Security Specialist will be responsible for safeguarding our client's blockchain infrastructure, smart contracts, and digital assets against evolving cyber threats. We are looking for an expert with a deep understanding of blockchain security principles, vulnerability analysis, and risk management. This is a critical role for an individual passionate about securing the decentralized future and making a significant impact in the protection of sensitive digital assets.

Key Responsibilities

• Conduct comprehensive security assessments of blockchain platforms, protocols, and smart contracts.
• Perform penetration testing, vulnerability scanning, and code reviews to identify security weaknesses.
• Develop and implement robust security policies, procedures, and controls for blockchain environments.
• Investigate and respond to security incidents, providing detailed analysis and remediation strategies.
• Stay abreast of the latest security threats, vulnerabilities, and mitigation techniques relevant to blockchain technology.
• Design and implement security architectures for new blockchain projects.
• Advise development teams on secure coding practices for smart contracts and decentralized applications.
• Manage and maintain security tools and technologies.
• Contribute to the development of security awareness training for staff.
• Collaborate with internal and external stakeholders on security-related matters.

Requirements

• Bachelor's or Master's degree in Computer Science, Cybersecurity, Information Technology, or a related field.
• Minimum of 6 years of experience in cybersecurity, with at least 3 years specifically focused on blockchain security.
• In-depth knowledge of blockchain protocols, consensus mechanisms, and cryptography.
• Proven experience in smart contract auditing and vulnerability analysis (e.g., reentrancy attacks, integer overflows).
• Expertise in penetration testing methodologies and tools.
• Familiarity with security frameworks and compliance standards.
• Strong understanding of network security, cloud security, and application security.
• Excellent analytical, problem-solving, and investigative skills.
• Proficient in scripting languages (e.g., Python) for automation of security tasks.
• Strong communication and interpersonal skills, with the ability to explain complex security concepts clearly.

Benefits

• Our client offers a competitive salary, performance bonuses, and comprehensive benefits including medical aid and a retirement fund.
• The hybrid work model ensures a good work-life balance.
• Opportunities for continuous professional development, certifications, and attending industry-leading security conferences are provided.

Join a dedicated security team in **Polokwane** and play a vital role in securing the future of blockchain technology in **South Africa**.