2 months ago
Hong Kong, Hong Kong or Singapore, SingaporeStaff+
Responsibilities
- Design, assess migration paths for, and implement post-quantum cryptography algorithms in existing signature and key management systems.
- Design and develop cryptography libraries for MPC wallets and Web3 security products.
- Research Web3 ecosystem cryptography technologies and produce technology selection reports and technical documentation.
- Conduct security audits of wallet-layer signature code and cryptographic protocol implementations.
- Help define cryptography technical standards and enforce security red lines for cryptography-related code.
Requirements
- Master's degree or above in Cryptography, Mathematics, Computer Science, Cybersecurity, or a related field.
- Strong theoretical foundation in public-key cryptosystems, symmetric and asymmetric cryptography, lattice theory, security protocol design, and blockchain cryptography applications.
- In-depth research experience in post-quantum cryptography, including familiarity with lattice-based cryptography, hash-based signatures, and NIST PQC algorithms such as Kyber, Dilithium, and SPHINCS+.
- In-depth research experience in secure multi-party computation, threshold signatures, and secret sharing protocols.
- Some research background in zero-knowledge proofs, homomorphic encryption, or related cryptographic theory.
- Proficiency in at least one of C/C++, Rust, Go, or Java.
- Published papers at international cryptography conferences are a nice-to-have.
- Fluent English is a nice-to-have.
Benefits
- L&D programs and education subsidy
- Team-building programs and company events
- Wellness and meal allowances
- Comprehensive healthcare schemes for employees and dependants
About OKX
OKX builds a global cryptocurrency exchange and Web3 wallet used by retail and institutional traders for spot, derivatives, and DeFi access, with developer APIs. Its business model centers on trading and financing fees, plus wallet and on-chain services. Founded in 2017 and privately held, OKX publishes monthly proof-of-reserves and operates as part of the OKG group serving crypto markets worldwide.