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Wallet Security Engineer - Custody...

Wallet Security Engineer - Custody...

Crypto RecruitSingapore
16 days ago
Job description

We’re looking for a Wallet Security Engineer to lead the charge in designing, implementing, and continuously improving wallet infrastructure security — safeguarding digital assets for both the company and our customers. You’ll play a key role in defending against external threats, insider risk, and operational failure across both custodial and non-custodial systems.

This is a mission-critical role for someone who thrives at the intersection of security, cryptography, and blockchain infrastructure.

What You'll Be Doing :

1. Wallet Infrastructure & Security Design

  • Design, secure, and maintain both hot and cold wallet infrastructures
  • Implement and manage multisig, TSS (threshold signature schemes), and HSMs
  • Monitor on-chain activity and wallet transactions for suspicious patterns

2. Custody Systems Engineering

  • Collaborate with engineering to architect secure custodial and non-custodial systems
  • Enforce RBAC, secure key management, and provisioning protocols
  • Build out robust backup, recovery, and failover processes
  • 3. Threat Modeling & Risk Management

  • Identify and mitigate wallet-related vulnerabilities
  • Participate in internal red teaming, code audits, and pen tests
  • Maintain updated threat models and internal security policies
  • 4. Incident Response

  • Lead response efforts for wallet-related incidents or breaches
  • Conduct postmortems, root cause analyses, and implement prevention strategies
  • Develop incident playbooks to reduce response time and impact
  • 5. Compliance & Security Audits

  • Ensure wallet security systems meet relevant regulatory frameworks
  • Support and prepare for third-party audits and penetration assessments
  • 6. Monitoring & Automation

  • Deploy monitoring tools to track and detect wallet anomalies in real time
  • Automate key rotation, access reviews, and security event alerts
  • What You Bring

  • 3–7 years in cybersecurity, preferably within crypto or fintech
  • Deep understanding of cryptographic systems (ECDSA, Schnorr, Shamir's Secret Sharing, etc.)
  • Hands-on experience with HSMs, TSS, MPC, and advanced key management systems
  • Familiarity with leading blockchain platforms (Ethereum, Bitcoin, Solana)
  • Awareness of smart contract vulnerabilities (especially for DeFi / DEX)
  • Solid understanding of cloud security, containers, and CI / CD pipelines
  • Proficiency in Go, Rust, Python, or Solidity is a strong plus
  • Security certifications (CISSP, OSCP, CEH, etc.) are a bonus but not required
  • Who You’ll Work With

  • Infrastructure, DevOps, and Blockchain Engineering teams
  • Legal, compliance, and risk teams
  • External audit firms, wallet vendors, and security researchers
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    Cryptorecruit are the worlds leading specialist recruiter for the blockchain / Cryptocurrency industry. We recruit positions from CEO, CTO, Project Manager, Solidity developer, frontend and Backend Blockchain developers to marketing / sales and customer service roles. Please browse our website and at www.cryptorecruit.com to search all our job vacancies.

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    Security Engineer • Singapore