Wallet Security Engineer / Custody Security Lead - Remote

AP Technical Recruitment; Singapore; Remote; SGD 80,000 - 120,000; Full time

Job summary

An innovative client seeks a Wallet Security Engineer in Singapore or Dubai, responsible for securing wallets and digital assets. Candidates should have expertise in cybersecurity with a focus in crypto or fintech, and experience with relevant technologies. This role offers a flexible engagement as freelance or permanent.

Qualifications

• 3 to 7 years experience in cybersecurity, preferably in crypto or fintech.
• Strong knowledge of cryptographic primitives.
• Familiarity with HSMs, MPC, TSS, and blockchain platforms.

Responsibilities

• Design, implement, and monitor wallet security infrastructure.
• Liaise with compliance, legal teams, and external vendors.
• Contribute to the improvement of security mechanisms.

Skills

Cybersecurity

Knowledge of cryptographic primitives

Cloud security

Container security

DevOps

Blockchain platforms

Job description

Our innovative client based in Singapore and Dubai seeks aWallet Security Engineer, to be responsible for the design, implementation, monitoring, and improvement of wallet infrastructure and security mechanisms to safeguard digital assets belonging to both the company and its customers. This job can be remote and our client is offering either a freelance consultancy or permanent role.

For this role you will need to have gained 3 to 7 years experience in cybersecurity, preferably in crypto or fintech, with strong knowledge of cryptographic primitives (e.g., ECDSA, Schnorr, Shamir's Secret Sharing).

Experience with HSMs, MPC, TSS, and other key management technologies, and familiarity with blockchain platforms such as Ethereum, Bitcoin, Solana is a key requirement. An understanding of smart contract vulnerabilities (for DEXs), and experience with cloud security, container security, and CI/CD pipelines will be essential. You will work closely with infrastructure, DevOps, blockchain engineers, compliance, and legal teams, as well as liaise with external vendors, wallet providers, and audit firms.

Proficiency in Go, Rust, Python, or Solidity is a plus; relevant certifications (e.g., CISSP, OSCP, CEH) are advantageous.

For further information, please email your current CV to [e-mail] send your CV via WhatsApp: + 44 78140 92441

AP Group is acting as an introductory service in relation to this vacancy. By submitting your CV for consideration, you are consenting to its retention for the purpose of securing you work. Any information you provide to AP Group and its subsidiaries will be subject to the protection of Data Protection Laws, our policy for which can be found at https://www.apgroupglobal.com/privacy-notice/