Senior Blockchain Security Auditor

Placements24; Noord-Kaap; Hybrid; ZAR 900,000 - 1,500,000; Full time

Benefits offered by this job

Health insurance

Dental & vision insurance

Remote-friendly

Job summary

Placements24 is seeking a Senior Blockchain Security Auditor for a fully remote role. You will audit smart contracts, dApps and protocols, focusing on Solidity, the EVM and common vulnerabilities to safeguard crypto projects.

You will develop comprehensive audit reports, mentor junior analysts, and stay ahead of emerging security threats, collaborating with global teams and clients in a remote setting.

Qualifications

• Proven experience auditing smart contracts and blockchain security.
• Strong knowledge of Solidity and the EVM.
• Familiarity with common smart contract vulnerabilities and exploit techniques.
• Experience with security analysis tools and secure coding practices.
• Ability to produce clear audit reports and remediation guidance.

Responsibilities

• Perform comprehensive security audits of smart contracts, dApps and protocols.
• Identify and analyze vulnerabilities such as reentrancy, overflows, access control issues and gas problems.
• Use security tools and manual review to uncover risks.
• Develop detailed audit reports with findings and remediation steps.
• Mentor junior analysts and share expertise with the team.

Skills

Smart contract auditing

Blockchain security

Vulnerability analysis

Cryptography basics

Security reporting

Education

Bachelor's degree in Computer Science or Cybersecurity

Tools

Slither

Mythril

Echidna

Securify

Job description

About the Role

Our client, a highly respected cybersecurity firm specializing in blockchain technologies, is seeking an experienced Senior Blockchain Security Auditor for a fully remote position. You will play a critical role in ensuring the security and integrity of cutting‑edge blockchain projects by conducting rigorous audits of smart contracts, protocols, and decentralized applications. This position requires a meticulous individual with a deep understanding of blockchain vulnerabilities, cryptography, and secure development practices. You will be part of a global team dedicated to safeguarding the burgeoning crypto‑economy. This is an exceptional opportunity for a security‑focused professional to make a significant impact from anywhere.

Key Responsibilities

• Perform comprehensive security audits of smart contracts, dApps, and blockchain protocols, primarily using Solidity.
• Identify and analyze vulnerabilities, including but not limited to reentrancy, integer overflows, access control issues, and gas limitations.
• Utilize a variety of security tools, static analysis techniques, and manual review processes to uncover potential risks.
• Develop detailed and actionable audit reports for clients, clearly outlining findings, risk assessments, and remediation strategies.
• Stay ahead of the curve by researching and understanding new attack vectors and emerging security threats in the blockchain space.
• Collaborate with development teams to provide guidance on secure coding practices and architectural improvements.
• Contribute to the development and refinement of internal security auditing methodologies and best practices.
• Mentor junior security analysts and share expertise within the team.
• Communicate complex technical security issues effectively to both technical and non-technical audiences.
• Engage in threat modeling and risk assessment activities for new blockchain projects.

Requirements

• Demonstrated experience in smart contract auditing, cybersecurity, or a related role with a focus on blockchain security.
• Expertise in analyzing smart contracts written in Solidity and understanding the Ethereum Virtual Machine (EVM).
• Strong knowledge of common smart contract vulnerabilities and exploit techniques.
• Proficiency with blockchain security analysis tools (e.g., Slither, Mythril, Echidna, Securify) and secure coding frameworks.
• Solid understanding of cryptographic principles and general blockchain architecture.
• Excellent analytical and problem-solving skills with an exceptional eye for detail.
• Strong written and verbal communication skills, capable of producing clear and comprehensive reports.
• Ability to work independently and manage time effectively in a remote setting.
• Bachelor's degree in Computer Science, Cybersecurity, or a related technical discipline, or equivalent professional experience.
• Previous experience in bug bounty programs or CTF competitions is highly advantageous.

Benefits

This fully remote position offers ultimate flexibility and work-life balance. Our client provides a highly competitive salary, comprehensive health, dental, and vision insurance, and performance‑based bonuses. We invest in our employees' growth through access to cutting‑edge tools, industry conferences, and continuous learning opportunities.