Blockchain Security Analyst - Smart Contract Audits

Placements24; Johannesburg; Hybrid; ZAR 600,000 - 900,000; Full time

Benefits offered by this job

Fully remote work arrangement

Performance-based bonuses

Professional development opportunities

Health benefits

Flexible working hours

Job summary

Placements24 in Randburg, Gauteng, is seeking a Blockchain Security Analyst to audit smart contracts and assess security risks across decentralized applications. You will identify vulnerabilities, propose mitigations, and help embed security practices throughout the development lifecycle.

The role requires collaborating with development teams, staying current with blockchain security threats, and producing comprehensive audit reports.

Qualifications

• Bachelor’s degree in CS/Cybersecurity or a related field.
• Minimum of 3 years of cybersecurity experience with a focus on blockchain security.
• Experience analyzing smart contract code and identifying vulnerabilities.
• Familiarity with Ethereum, Polygon, Solana and related platforms.
• Relevant certifications are a plus.

Responsibilities

• Perform comprehensive security audits of smart contracts and DApps.
• Identify vulnerabilities and document remediation steps clearly.
• Develop risk-based security testing methodologies and tools.
• Collaborate with development teams to integrate security into design and coding.
• Produce detailed audit reports for stakeholders and incident response teams.
• Stay updated on latest blockchain threats and best practices.

Skills

Smart contract security

Security audits

Threat modeling

Static/dynamic analysis

Cryptography

Report writing

Independent work

Security tools

Blockchain platforms

Education

Bachelor's degree in CS or Cybersecurity

Tools

Security analysis tools

Job description

About the Role

Our client, a leading innovator in the **Crypto & Blockchain** space, is looking for a meticulous and skilled Blockchain Security Analyst to join their expanding team. This critical role is primarily focused on ensuring the integrity and security of smart contracts and decentralized applications. While the position is based in **Randburg, Gauteng**, the company offers a fully remote work arrangement, providing flexibility and autonomy. You will be responsible for conducting in-depth security audits, identifying vulnerabilities, and recommending mitigation strategies to protect our client's assets and users. This is an excellent opportunity for a security-focused professional to contribute to a company that prioritizes robust security practices and cutting-edge technological development within the **decentralized finance** sector. Your expertise will be vital in maintaining trust and confidence in our client's innovative platforms. You will work collaboratively with development teams to embed security throughout the entire development lifecycle, from design to deployment and ongoing maintenance, ensuring the highest standards are met.

Key Responsibilities

• Perform comprehensive security audits of smart contracts written in Solidity, Rust, and other relevant languages.
• Identify, analyze, and document security vulnerabilities, including reentrancy attacks, integer overflows, and logic flaws.
• Develop and implement security testing methodologies and tools for blockchain applications.
• Provide clear and actionable recommendations for remediation of identified vulnerabilities.
• Stay abreast of the latest security threats, exploits, and best practices in the blockchain industry.
• Collaborate with development teams to integrate security considerations into the design and coding phases.
• Conduct threat modeling and risk assessments for new blockchain projects.
• Contribute to the development of internal security tools and frameworks.
• Produce detailed audit reports for internal and external stakeholders.
• Participate in incident response activities related to security breaches or anomalies.

Requirements

• Bachelor's degree in Computer Science, Cybersecurity, or a related technical field.
• Minimum of 3 years of experience in cybersecurity, with a strong focus on blockchain security and smart contract auditing.
• Proficiency in analyzing smart contract code and identifying common vulnerabilities.
• Experience with security analysis tools and static/dynamic analysis techniques.
• Solid understanding of blockchain protocols, cryptography, and decentralized application architecture.
• Familiarity with major blockchain platforms (e.g., Ethereum, Polygon, Solana).
• Strong analytical and problem-solving skills, with keen attention to detail.
• Excellent written and verbal communication skills, particularly in report writing.
• Ability to work independently and manage multiple audit engagements simultaneously.
• Relevant certifications (e.g., Certified Blockchain Security Professional) are a plus.

Benefits

• Competitive salary and potential for performance-based bonuses.
• Fully remote work arrangement, offering unparalleled flexibility.
• Opportunity to work on high-impact projects in the **crypto and blockchain** domain.
• Contribution to a company that champions security and innovation.
• Comprehensive health and wellness benefits.
• Professional development opportunities and access to security conferences.
• Flexible working hours to accommodate different time zones.
• A collaborative and intellectually stimulating virtual work environment.
• Exposure to a wide array of blockchain technologies and protocols.