Blockchain Security Specialist - Smart Contract Auditing

Placements24; Mbombela (Nelspruit); Hybrid; ZAR 600,000 - 900,000; Full time

Benefits offered by this job

Health insurance

Training & development

Flexible hybrid work

Job summary

Placements24 is partnering with a blockchain security firm in Nelspruit, Mpumalanga, seeking a Blockchain Security Specialist. You will conduct security audits of smart contracts (Solidity), identify vulnerabilities, and advise clients on remediation to safeguard digital assets.

The role blends in‑office collaboration with remote flexibility in a hybrid setup. The ideal candidate has 2–4 years in cybersecurity or blockchain security, strong analytical skills, and excellent communication to

Qualifications

• Bachelor's degree in Computer Science, Cybersecurity, or a related technical discipline.
• 2-4 years of experience in cybersecurity, software development, or blockchain security.
• Strong proficiency in Solidity and understanding of its nuances.
• Knowledge of common smart contract vulnerabilities and exploitation techniques.

Responsibilities

• Conduct detailed security audits of smart contracts written in Solidity.
• Identify and analyze vulnerabilities such as reentrancy, overflows/underflows, and access control exploits.
• Utilize advanced static and dynamic analysis tools to detect security flaws.
• Develop comprehensive audit reports detailing findings, risk assessments, and remediation strategies.
• Stay current with the latest blockchain security threats, trends, and mitigation techniques.
• Collaborate with clients to understand their projects and provide tailored security advice.
• Contribute to the development of internal security tools, frameworks, and methodologies.
• Test and verify the effectiveness of implemented security measures.
• Advise on secure coding practices for blockchain development.
• Participate in incident response efforts when required.

Skills

Solidity

Security auditing

Threat analysis

Education

Bachelor's degree in CS/Cybersecurity

Tools

Slither

Mythril

Echidna

Job description

About the Role

Our client, a reputable firm at the forefront of blockchain security, is seeking a dedicated Blockchain Security Specialist to join their growing team in Nelspruit, Mpumalanga. This role is crucial for ensuring the safety and integrity of smart contracts and blockchain-based applications. You will be responsible for conducting thorough security audits, identifying potential vulnerabilities, and providing expert recommendations to clients. The ideal candidate will possess a meticulous approach, a deep understanding of smart contract languages, common attack vectors, and a strong desire to safeguard the rapidly evolving crypto landscape. This is an excellent opportunity to work with a diverse range of innovative projects and contribute significantly to the security posture of the blockchain ecosystem. You will collaborate with a team of skilled security professionals and developers, sharing knowledge and driving best practices. Our client is committed to fostering a culture of continuous learning and excellence in security. The role involves a hybrid work arrangement, offering a blend of in-office collaboration and remote flexibility. Join our client in Nelspruit, Mpumalanga to make a real impact in securing the future of digital assets and decentralized technologies.

Key Responsibilities

• Conduct detailed security audits of smart contracts written in languages like Solidity.
• Identify and analyze vulnerabilities such as reentrancy, integer overflows/underflows, and access control exploits.
• Utilize advanced static and dynamic analysis tools to detect security flaws.
• Develop comprehensive audit reports detailing findings, risk assessments, and remediation strategies.
• Stay current with the latest blockchain security threats, trends, and mitigation techniques.
• Collaborate with clients to understand their projects and provide tailored security advice.
• Contribute to the development of internal security tools, frameworks, and methodologies.
• Test and verify the effectiveness of implemented security measures.
• Advise on secure coding practices for blockchain development.
• Participate in incident response efforts when required.

Requirements

• Bachelor's degree in Computer Science, Cybersecurity, or a related technical discipline.
• 2-4 years of experience in cybersecurity, software development, or specifically in blockchain security.
• Strong proficiency in Solidity and understanding of its nuances.
• Knowledge of common smart contract vulnerabilities and exploitation techniques.
• Experience with security analysis tools (e.g., Slither, Mythril, Echidna) and fuzzing techniques.
• Familiarity with blockchain technologies and ecosystems (e.g., Ethereum).
• Excellent analytical, problem-solving, and critical thinking skills.
• Strong written and verbal communication abilities, capable of clearly explaining technical risks.
• Ability to work effectively both independently and within a team.
• Detail-oriented with a commitment to thoroughness.

Benefits

• Competitive salary and performance-based bonuses.
• Comprehensive health insurance package.
• Opportunities for professional growth and specialized training in blockchain security.
• Generous annual leave and flexible hybrid working arrangements.
• Exposure to a wide array of innovative blockchain projects.
• A supportive and intellectually stimulating work environment in Nelspruit, Mpumalanga.
• Regular knowledge-sharing sessions and workshops.
• Company-sponsored events and team-building activities.