Senior Staff/Staff Cryptography Engineer
okx· Engineering
About this role
Who We Are
At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.
OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.
Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.
Responsibilities
- Design, assess migration paths for, and implement post-quantum cryptography (PQC) algorithms within existing signature and key management systems; track the latest developments in cutting-edge PQC standards such as lattice-based cryptography
- Design and develop the underlying cryptography library for MPC wallet / Web3 security products
- Research Web3-ecosystem cryptography technologies and produce technology selection reports and related technical documentation
- Conduct security audits of wallet-layer signature code and cryptographic protocol implementations
- Participate in defining the team's 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
- Solid theoretical foundation in cryptography, including public-key cryptosystems, symmetric/asymmetric cryptography principles, lattice theory fundamentals, security protocol design, and blockchain cryptography applications
- In-depth research experience in post-quantum cryptography; familiar with lattice-based cryptography and hash-based signatures; knowledge of NIST PQC standard algorithms (Kyber, Dilithium, SPHINCS+, etc.); experience with algorithm migration or engineering implementation is a plus
- In-depth research experience in secure multi-party computation (MPC); familiar with threshold signature and secret sharing protocol principles and engineering implementation
- Some research background in zero-knowledge proofs (e.g., zk-SNARK/zk-STARK), homomorphic encryption, or related cryptographic theory
- Proficient in at least one of: C/C++, Rust, Go, or Java
Nice-to-Haves
- Published papers at international cryptography conferences
- Fluent English (listening, speaking, reading, writing)
Perks & Benefits
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Competitive total compensation package
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L&D programs and Education subsidy for employees' growth and development
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Various team building programs and company events
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Wellness and meal allowances
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Comprehensive healthcare schemes for employees and dependants
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More that we love to tell you along the process!
Notice:
All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.
Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's Candidate Privacy Notice.
Frequently Asked Questions
Is the salary disclosed for the Senior Staff/Staff Cryptography Engineer position at okx?
The salary for this Senior Staff/Staff Cryptography Engineer role at okx is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Staff/Staff Cryptography Engineer position at okx located?
This Senior Staff/Staff Cryptography Engineer role at okx is based in Hong Kong, Hong Kong SAR; Singapore, Singapore. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Senior Staff/Staff Cryptography Engineer at okx belong to?
This Senior Staff/Staff Cryptography Engineer position is part of the Engineering department at okx. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Staff/Staff Cryptography Engineer position at okx?
Click the "Apply Now" button on this page. You will be redirected to okx's official application portal hosted on greenhouse where you can submit your application directly.
When was the Senior Staff/Staff Cryptography Engineer job at okx posted?
This Senior Staff/Staff Cryptography Engineer position at okx was posted on Aug 4, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Staff/Staff Cryptography Engineer
okx
You'll be redirected to okx's official application page on Greenhouse.