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<h2>Tasks</h2>
💰 Salary: $75,000 – $85,000/year
🌍 Location: Remote (APAC &amp; Europe)
About the Opportunity
We are partnering with a leading blockchain infrastructure company that is building secure, scalable, and enterprise-grade distributed ledger technology powering next-generation Web3 applications.
As the platform expands its protocol capabilities, smart contract ecosystem, and cross-chain infrastructure, the security team is seeking a highly skilled Product Security Engineer to proactively identify vulnerabilities, strengthen protocol security, and protect critical blockchain systems before they reach production.
What You'll Do
<ul>
<li>Conduct end-to-end security assessments across blockchain protocols, smart contracts, cryptographic systems, and infrastructure.</li>
<li>Identify real-world vulnerabilities through manual review, adversarial testing, and proof-of-concept exploit development.</li>
<li>Design and execute security testing strategies for protocol components, cross-chain bridges, and distributed systems.</li>
<li>Lead threat modeling exercises and security architecture reviews.</li>
<li>Define and enforce security gates throughout the software development lifecycle.</li>
<li>Collaborate closely with engineering teams to prioritize and remediate security risks.</li>
<li>Build and improve security tooling, fuzzing frameworks, and CI/CD security automation.</li>
<li>Research emerging Web3 attack vectors and proactively mitigate potential threats.</li>
</ul>
<h2>Requirements</h2>
Core Qualifications
<ul>
<li>Strong hands-on experience in vulnerability discovery and security testing across blockchain systems.</li>
<li>Proven ability to identify real vulnerabilities beyond automated scanning tools.</li>
<li>Experience performing threat modeling and security architecture reviews.</li>
<li>Deep understanding of blockchain security, smart contracts, nodes, APIs, and distributed systems.</li>
<li>Experience assessing cryptographic protocols, trust models, or cross-chain infrastructure.</li>
<li>Strong knowledge of applied cryptography and modern security principles.</li>
<li>Ability to audit and review Rust and/or Java codebases.</li>
<li>Understanding of memory safety, secret management, and secure software development practices.</li>
</ul>
Preferred Qualifications
<ul>
<li>Experience developing fuzzing infrastructure or advanced security testing frameworks.</li>
<li>Experience with static analysis, dynamic analysis, and automated security tooling.</li>
<li>Background in consensus-layer security or blockchain protocol development.</li>
<li>Experience auditing cross-chain bridges.</li>
<li>Knowledge of threshold signature systems, multisig architectures, and oracle security.</li>
<li>Experience integrating AI-assisted workflows into security review processes.</li>
</ul>
What Success Looks Like
Within the first 6–12 months, you will:
✅ Integrate security review processes into core development workflows
✅ Improve automated security coverage through tooling and CI/CD integration
✅ Reduce vulnerability backlog through structured collaboration with engineering teams
✅ Strengthen organizational knowledge of blockchain attack vectors and secure coding practices
<h2>Benefits</h2>
Competitive compensation package
Fully remote work environment
Opportunity to work on cutting-edge blockchain infrastructure
Exposure to advanced cryptography and distributed systems
High-impact role protecting critical Web3 technology at scale
Work alongside world-class engineers and security researchers

Product Security Engineer (Blockchain Security)

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