Blockchain Security Analyst - Smart Contract Audits

Placements24; Southampton; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Fully remote work

Competitive salary

Health benefits

Professional development opportunities

Flexible working hours

Job summary

Placements24 is seeking a Blockchain Security Analyst to audit smart contracts and decentralized applications, ensuring robust security across the development lifecycle. You will identify vulnerabilities, perform threat modeling, and collaborate with engineering teams to embed security from design to deployment.

Ideal candidates have 3+ years of blockchain security experience, strong knowledge of cryptography, and familiarity with Ethereum, Polygon, and Solana.

Qualifications

• Bachelor’s degree in Computer Science, Cybersecurity, or a related technical field.
• 3+ years of cybersecurity experience with a focus on blockchain security and smart contract auditing.
• Experience analyzing smart contract code and identifying common vulnerabilities.

Responsibilities

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

Skills

Blockchain security

Smart contract auditing

Security analysis tools

Static/dynamic analysis

Cryptography basics

DApp architecture

Blockchain platforms

Report writing

Independent work

Education

Bachelor's degree in Computer Science/Cybersecurity/related field

Tools

Static analysis tools

Dynamic 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.