Web3 Security Leader - CyberScope
- Toronto, ON, Canada
Full-time
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Original job description
Company: CyberScope (TAC Security Group)Job Title: Web3 Security Leader
LeaderDepartment: Web3 Security, Blockchain Security & ResearchEmployment
Experience Required: 6-8yrs Years in Cybersecurity, including 4–5+ Years in Web3 Security.
About CyberScope
CyberScope, part of the TAC Security Group, specializes in blockchain security, smart contract auditing, Web3 security assessments, and advanced cybersecurity research.
CyberScope helps blockchain projects, decentralized applications, DeFi platforms, and Web3 organizations identify security vulnerabilities, strengthen their infrastructure, and protect digital assets through comprehensive security assessments and innovative security solutions.
We are looking for an experienced and technically accomplished Web3 Security Leader to lead and scale our global blockchain security practice, drive technical innovation, manage high-performing security research teams, and deliver world-class security services to Web3 clients.
Role Overview
The Web3 Security Leader will be responsible for defining and executing CyberScope's Web3 security strategy, overseeing smart contract audits, blockchain protocol security assessments, DeFi security reviews, and advanced vulnerability research.
The ideal candidate will possess deep technical expertise in blockchain security, smart contract auditing, cryptographic principles, and decentralized architectures, combined with strong leadership, client management, and business growth capabilities.
This role requires a hands-on technical leader who can build and mentor security researchers, establish advanced auditing methodologies, manage complex security engagements, and strengthen CyberScope's position in the global Web3 security ecosystem.
Key Responsibilities
- Web3 Security Strategy & Leadership
- Develop and execute CyberScope's global Web3 security strategy aligned with business objectives and emerging blockchain technologies.
- Lead, build, and scale high-performing teams of smart contract auditors, blockchain security engineers, and security researchers.
- Establish technical standards, auditing methodologies, quality assurance processes, and security assessment frameworks.
- Define the roadmap for expanding Web3 security services across blockchain ecosystems and international markets.
- Identify emerging blockchain security risks, technological developments, and new business opportunities.
- Collaborate with executive leadership to drive innovation, operational excellence, and sustainable business growth.
- Position CyberScope as a trusted security partner within the global Web3 and blockchain ecosystem.
- Smart Contract Security & Auditing
- Lead and oversee comprehensive smart contract security audits across Ethereum, EVM-compatible blockchains, and other supported blockchain ecosystems.
- Review complex smart contract architectures, protocols, and decentralized applications.
- Guide security researchers in identifying vulnerabilities such as reentrancy, access control weaknesses, oracle manipulation, flash loan attacks, arithmetic issues, and business logic vulnerabilities.
- Conduct and supervise manual code reviews, automated security assessments, and formal verification activities where applicable.
- Ensure comprehensive vulnerability reporting, risk classification, and actionable remediation recommendations.
- Establish consistent auditing standards to maintain high-quality security deliverables.
- Provide technical guidance during critical smart contract security investigations and complex audit engagements.
- Blockchain Protocol & DeFi Security
- Lead security assessments of blockchain protocols, consensus mechanisms, and decentralized infrastructure.
- Oversee security reviews of DeFi platforms, including decentralized exchanges, lending protocols, staking systems, yield aggregators, and liquidity protocols.
- Assess security risks associated with tokenomics, governance mechanisms, cross-chain bridges, and interoperability protocols.
- Guide threat modeling and security architecture reviews for decentralized applications.
- Evaluate vulnerabilities involving economic exploits, transaction ordering, MEV-related risks, and protocol design weaknesses.
- Support security assessments of Layer 1, Layer 2, rollup, and cross-chain ecosystems.
- Develop methodologies for identifying complex vulnerabilities in decentralized financial systems.
- Security Research, Innovation & Automation
- Drive advanced research into emerging Web3 attack vectors, blockchain vulnerabilities, and exploitation techniques.
- Lead the development and enhancement of proprietary smart contract security auditing tools and frameworks.
- Promote the use of AI-powered security analysis, automated vulnerability detection, and advanced testing methodologies.
- Oversee the use of static analysis, dynamic testing, fuzzing, symbolic execution, and formal verification techniques.
- Encourage responsible vulnerability disclosure, technical research publications, and participation in the broader security community.
- Explore emerging security challenges across zero-knowledge proofs, account abstraction, decentralized identity, and new blockchain architectures.
- Develop innovative solutions that improve audit accuracy, efficiency, and scalability.
- Team Management & Technical Excellence
- Recruit, mentor, and develop smart contract auditors, blockchain security engineers, and Web3 security researchers.
- Establish performance benchmarks, technical competency frameworks, and professional development programs.
- Conduct technical reviews, code reviews, knowledge-sharing sessions, and security research discussions.
- Ensure audit engagements are completed within agreed timelines and quality standards.
- Build specialized expertise across Solidity, Rust, Move, Vyper, and other relevant blockchain programming languages.
- Foster a culture of continuous learning, accountability, innovation, and technical excellence.
- Develop succession plans and technical leadership capabilities within the Web3 security team.
- Client Engagement & Business Development
- Act as a senior technical advisor for blockchain projects, DeFi protocols, Web3 startups, exchanges, and enterprise clients.
- Lead technical discussions with clients regarding smart contract security, blockchain architecture, and security assessment requirements.
- Collaborate with Sales, Presales, Marketing, and Business Development teams to support revenue growth.
- Contribute to technical proposals, RFP responses, statements of work, and security solution design.
- Identify opportunities to expand security services across existing and prospective Web3 clients.
- Establish strategic relationships with blockchain foundations, ecosystem partners, protocol developers, and Web3 organizations.
- Represent CyberScope at blockchain conferences, cybersecurity events, technical forums, and industry discussions.
- Communicate complex security findings and risks to technical teams, founders, and executive stakeholders.
- Security Governance, Risk & Quality Assurance
- Establish and maintain comprehensive quality assurance standards for smart contract and blockchain security audits.
- Ensure security assessments follow ethical hacking practices, responsible disclosure principles, and applicable legal requirements.
- Develop risk assessment methodologies tailored to decentralized applications and blockchain protocols.
- Oversee audit documentation, vulnerability validation, remediation verification, and final reporting.
- Maintain strict confidentiality and security controls for client code, sensitive information, and audit findings.
- Monitor evolving Web3 security standards, industry practices, and relevant regulatory developments.
- Ensure continuous improvement in audit methodologies and service delivery processes.
Required Skills & Qualifications
Technical Expertise
- Strong hands-on expertise in smart contract auditing, blockchain security, and decentralized application security.
- Advanced proficiency in Solidity and strong understanding of Ethereum Virtual Machine (EVM) architecture.
- Experience with Rust, Move, Vyper, or other blockchain programming languages.
- Deep understanding of DeFi protocols, token standards, governance mechanisms, staking, and cross-chain bridges.
- Experience identifying and analyzing smart contract vulnerabilities, economic attacks, and protocol-level security weaknesses.
- Strong understanding of cryptography, blockchain consensus mechanisms, transaction execution, and decentralized architectures.
- Experience with smart contract security tools such as Slither, Foundry, Hardhat, Echidna, Mythril, and other relevant auditing frameworks.
- Knowledge of fuzz testing, invariant testing, symbolic execution, and formal verification techniques.
- Understanding of Layer 1, Layer 2, rollups, and interoperability technologies.
- Ability to perform advanced manual code reviews and security architecture assessments.
Leadership & Business Skills
- Proven experience leading smart contract auditing, blockchain security, or offensive security research teams.
- Strong ability to build and scale cybersecurity practices and technical delivery teams.
- Experience managing multiple complex security audit engagements simultaneously.
- Excellent technical decision-making, analytical, and problem-solving capabilities.
- Strong client engagement, stakeholder management, and executive communication skills.
- Ability to translate complex technical vulnerabilities into business risks and remediation priorities.
- Experience supporting business development, technical presales, and strategic partnerships.
- Strong understanding of the global Web3 ecosystem and emerging blockchain security trends.
Educational Qualifications
- Bachelor's or Master's degree in Computer Science, Cybersecurity, Information Security, Blockchain Technology, Engineering, or a related discipline.
- 8–12+ years of experience in cybersecurity, software security, or security research.
- Minimum 4–5 years of hands-on experience in smart contract auditing, blockchain security, or Web3 security research.
- Minimum 3–5 years of experience in technical leadership, security practice management, or team management.
- Demonstrated experience leading complex smart contract audits and blockchain security engagements.
Preferred Certifications & Credentials
- OSCP – Offensive Security Certified Professional
- OSWE – Offensive Security Web Expert
- CISSP – Certified Information Systems Security Professional
- Certified Blockchain Security Professional (CBSP) or equivalent
- Relevant blockchain security certifications or advanced security research credentials
- Recognized contributions to Web3 security research, audit contests, bug bounty programs, or responsible vulnerability disclosures
More about this job
Responsibilities
Lead CyberScope’s Web3 security strategy and global practice, overseeing smart contract audits, blockchain and DeFi assessments, security research, and development of auditing tools and methodologies. Build and mentor technical teams, manage client engagements and business development, and maintain quality, governance, and responsible disclosure standards.
Requirements
The role requires extensive cybersecurity experience, including at least 4–5 years of hands-on Web3 or smart contract security work, along with technical leadership experience. Candidates should have advanced Solidity and EVM expertise, knowledge of blockchain and DeFi security, relevant auditing tools and methods, and a bachelor’s or master’s degree in a related field.
Skills
- Smart Contract Auditing
- Blockchain Security
- Solidity
- Ethereum Virtual Machine
- DeFi Security
- Security Research
- Cryptography
- Rust
- Move
- Vyper
- Fuzz Testing
- Formal Verification
- Team Leadership
- Client Engagement
- Risk Assessment
- Security Architecture
Visa sponsorship
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Categories
- Security & Safety
- Technology
- Software
- Management & Leadership
- Science & Research
Keywords
- Web3 Security
- Blockchain Security
- Smart Contract Auditing
- Solidity
- Ethereum Virtual Machine
- EVM-Compatible Blockchains
- DeFi
- Rust
- Move
- Vyper
- Slither
- Foundry
- Hardhat
- Echidna
- Mythril
- Fuzz Testing
- Invariant Testing
- Symbolic Execution
- Formal Verification
- Layer 1
- Layer 2
- Rollups
- Cross-Chain Bridges
- Cryptography
- Consensus Mechanisms
- Tokenomics
- MEV
- OSCP
- OSWE
- CISSP