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
At OKX, we believe that the future will be reshaped by Crypto, ultimately contributing to every individual's freedom. OKX began as a crypto exchange giving millions of people access to crypto trading and over time becoming among the largest platforms in the world. In recent years, we have developed one of the most connected Web3 wallets used by millions to access decentralized crypto applications (dApps). OKX is a trusted brand by hundreds of large institutions seeking access to crypto markets on a reliable platform that seamlessly connects with global banking and payments. In the last year, OKX has expanded into new markets including Australia, Brazil, Netherlands, Singapore and Turkey, with plans to launch in the US, Belgium and the UAE. We are deeply committed to shaping a fairer, more transparent and accessible society through blockchain technology. This is why we publish proof of reserves monthly, and continue to ship new innovative security features. We believe in good sportmanship and the pursuit to be better. You may see our OKX logo neatly fitted on the McLaren F1 cars, Manchester City FC team shirts, or at the Tribeca Film Festival celebrating artists and creators. Wherever you may find us, you will notice our pursuit of making our world more efficient, transparent, and connected. To learn more about OKX, download our app or visit: www.okx.com UK users follow: https://www.linkedin.com/company/okxuk/ Learn more about working at OKG, the business group developing OKX, our Digital Assets Exchange, our Web3 portal and blockchain ecosystems: bit.ly/WorkingatOKG