Tasks
💰 Salary: $75,000 – $85,000/year
🌍 Location: Remote (APAC & 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
- Conduct end-to-end security assessments across blockchain protocols, smart contracts, cryptographic systems, and infrastructure.
- Identify real-world vulnerabilities through manual review, adversarial testing, and proof-of-concept exploit development.
- Design and execute security testing strategies for protocol components, cross-chain bridges, and distributed systems.
- Lead threat modeling exercises and security architecture reviews.
- Define and enforce security gates throughout the software development lifecycle.
- Collaborate closely with engineering teams to prioritize and remediate security risks.
- Build and improve security tooling, fuzzing frameworks, and CI/CD security automation.
- Research emerging Web3 attack vectors and proactively mitigate potential threats.
Requirements
Core Qualifications
- Strong hands-on experience in vulnerability discovery and security testing across blockchain systems.
- Proven ability to identify real vulnerabilities beyond automated scanning tools.
- Experience performing threat modeling and security architecture reviews.
- Deep understanding of blockchain security, smart contracts, nodes, APIs, and distributed systems.
- Experience assessing cryptographic protocols, trust models, or cross-chain infrastructure.
- Strong knowledge of applied cryptography and modern security principles.
- Ability to audit and review Rust and/or Java codebases.
- Understanding of memory safety, secret management, and secure software development practices.
Preferred Qualifications
- Experience developing fuzzing infrastructure or advanced security testing frameworks.
- Experience with static analysis, dynamic analysis, and automated security tooling.
- Background in consensus-layer security or blockchain protocol development.
- Experience auditing cross-chain bridges.
- Knowledge of threshold signature systems, multisig architectures, and oracle security.
- Experience integrating AI-assisted workflows into security review processes.
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
Benefits
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
