Senior Blockchain Security Engineer

Omaze; Canada; On-site; CAD 191,000 - 230,000; Full time

Job summary

Join a forward-thinking company as a Senior Blockchain Security Engineer, where you'll play a pivotal role in shaping the future of onchain security. This innovative firm is dedicated to ensuring user safety within the blockchain ecosystem, working with cutting-edge technologies and protocols. You'll lead security assessments, mentor upcoming engineers, and collaborate with cross-functional teams to implement best practices. With a focus on continuous learning and adaptation in the fast-evolving crypto landscape, this role offers a unique opportunity to make a significant impact in the field of decentralized finance and security.

Qualifications

• 3+ years of smart contract auditing with deep familiarity with vulnerabilities.
• Expert-level knowledge of blockchain ecosystems including Ethereum and Solana.

Responsibilities

• Lead security strategies and develop tooling for protocol assessments.
• Mentor junior engineers and collaborate with product teams on security improvements.

Skills

Smart Contract Auditing

Blockchain Ecosystems

Threat Modeling

Security Assessments

Mentorship

Tooling & Frameworks Development

Collaboration with Engineering Teams

Continuous Learning

Tools

Fuzzing Tools

Static Analysis

Open-source Analysis Frameworks

Job description

Position: Senior Blockchain Security Engineer

• Location: Remote – Canada
• Type: Full-time
• Pay: $191,100 CAD + bonus + equity + benefits

The Mission

This role sits in Coinbase’s Protocol Security team — responsible for ensuring users interact safely with blockchain technologies. You’ll help secure L1s, L2s, DeFi protocols, staking mechanisms, and anything onchain.

This isn’t just auditing smart contracts — it’s about leading security strategies, building tools and frameworks, and mentoring engineers to keep Coinbase and its customers safe as they expand into Web3.

• Threat Modeling & Security Assessments: Deep dive into new and existing onchain protocols to uncover risks.
• Strategy & Best Practices: Develop Coinbase-wide approaches to onchain security.
• Tooling & Frameworks: Contribute to or lead the development of security tooling for protocol assessments.
• Mentorship & Leadership: Guide junior security engineers; build a crypto-forward culture of learning.
• Cross-Team Collaboration: Interface with product and engineering teams to implement your findings into real-world security improvements.
• 3+ years of smart contract auditing and deep familiarity with vulnerabilities (e.g., reentrancy, MEV, oracle manipulation, etc.).
• Expert-level knowledge of blockchain ecosystems — Ethereum, Solana, L2s, DeFi, staking, etc.
• The ability to dissect machine-, transaction-, and logic-level issues.
• Leadership skills: You’ve led audits, mentored peers, and influenced security decisions at scale.
• Experience working closely with engineering/product teams in a collaborative, strategic way.
• A continuous learner’s mindset — crypto evolves fast, and you’re excited to evolve with it.
• Contributions to security tooling, open-source analysis frameworks, or industry security research.
• Familiarity with formal verification, fuzzing tools, or static analysis for smart contracts.
• Comfort working in high-stakes environments (like financial infrastructure or mission-critical apps).

How to Position Yourself

Here are some ideas to help tailor your resume, cover letter, or interview prep:

• Show off complex protocol audits you’ve led — include the protocol name if it’s public.
• Mention any tools or frameworks you’ve built or contributed to (even internally).
• Share your thought process on assessing risk at multiple layers: contract, protocol, business logic.
• If you’ve mentored or upskilled junior engineers in this space — highlight that leadership.
• Demonstrate a clear passion for the intersection of security and DeFi/Web3.

Why This Role Stands Out

• You shape the future of onchain security, not just react to issues.
• Work with one of the most security-forward crypto teams globally.
• Massive impact opportunity: your work will directly affect user safety and protocol trustworthiness.
• Coinbase pays competitively and offers great equity for top technical talent.

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