Senior Blockchain Security Engineer

Placements24; Mbombela (Nelspruit); Hybrid; ZAR 900,000 - 1,500,000; Full time

Benefits offered by this job

Fully remote

Competitive salary

Security tools access

Training resources

Career advancement

Job summary

Placements24 is seeking a highly experienced Senior Blockchain Security Engineer for a fully remote position to safeguard blockchain infrastructure, smart contracts, and digital assets across decentralized platforms.

You will lead security initiatives, conduct audits, and develop cutting-edge solutions while collaborating with development teams to embed best practices throughout the software development lifecycle.

Qualifications

• Extensive experience in cybersecurity with a focus on blockchain security.
• Expert knowledge of smart contract vulnerabilities (e.g., reentrancy, integer overflows) and mitigations.
• Proficiency in security analysis tools, code review, and penetration testing for blockchain systems.
• Strong understanding of cryptography, consensus mechanisms, and distributed ledgers.
• Experience with Solidity and blockchain development frameworks.

Responsibilities

• Lead security architectures for blockchain platforms and applications.
• Perform audits and penetration tests of smart contracts and dApps.
• Develop security policies, incident response plans, and best practices.
• Identify and mitigate vulnerabilities proactively.
• Collaborate with dev and operations teams to embed security across the SDLC.
• Stay updated on emerging risks and propose innovative security solutions.

Skills

Blockchain security

Smart contract auditing

Threat modeling

Penetration testing

Cryptography basics

Solidity

Security tooling

Tools

Smart contract scanners

Formal verification

Job description

About the Role

Our client is seeking a highly experienced Senior Blockchain Security Engineer for a fully remote position. This role is paramount in safeguarding their blockchain infrastructure, smart contracts, and digital assets against evolving cyber threats. You will lead security initiatives, conduct rigorous audits, and develop cutting-edge security solutions to ensure the integrity and trustworthiness of their decentralized platforms. This is an exceptional opportunity for a seasoned security professional to make a significant impact in the blockchain space.

Key Responsibilities

• Lead the design and implementation of security architectures for blockchain platforms and applications.
• Perform in-depth security audits and penetration testing of smart contracts, dApps, and related infrastructure.
• Develop and maintain security best practices, policies, and incident response plans for blockchain environments.
• Identify, analyze, and mitigate security vulnerabilities and threats proactively.
• Collaborate with development and operations teams to embed security throughout the software development lifecycle.
• Stay at the forefront of blockchain security research, identifying emerging risks and proposing innovative solutions.

Requirements

• Extensive experience in cybersecurity, with a deep focus on blockchain security and smart contract auditing.
• Expert knowledge of common smart contract vulnerabilities (e.g., reentrancy, integer overflows) and mitigation strategies.
• Proficiency in security analysis tools, code review techniques, and penetration testing methodologies for blockchain systems.
• Strong understanding of cryptographic principles, consensus mechanisms, and distributed ledger technologies.
• Experience with smart contract programming languages (e.g., Solidity) and development frameworks.
• Excellent communication skills, with the ability to articulate complex security concepts to diverse audiences.

Benefits

• A highly competitive salary and comprehensive benefits package.
• Fully remote work arrangement with flexibility in working hours.
• Access to advanced security tools and training resources.
• Significant opportunities for professional development and career advancement in a rapidly growing field.
• The chance to work on impactful projects and contribute to a secure decentralized future.