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Hong Kong Island, Hong Kong, China · On-site
Mid level
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Full-time
postgraduate degree
Competitive total compensation package, Learning and development programs, Education subsidy, Team building programs, Company events, Wellness allowance
Posted 8d ago
~40 hrs/week
Responsibilities
Design and implement post-quantum cryptography algorithms and secure multi-party computation libraries for Web3 products. Conduct security audits of cryptographic protocols and define technical standards for the team.
Requirements
Requires a Master's degree or higher in a relevant field and a strong theoretical foundation in cryptography. Candidates must have in-depth research experience in PQC, MPC, and proficiency in C++, Rust, Go, or Java.
Full job description
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
Competitive total compensation package
L&D programs and Education subsidy for employees' growth and development
Various team building programs and company events
Wellness and meal allowances
Comprehensive healthcare schemes for employees and dependants
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.
Discover the future of investing, built on top of the world’s most trusted crypto trading app, and web3 platform.
Industry
Financial Services
Company size
1,001-5,000 employees
Headquarters
Everywhere
LinkedIn followers
517,817
Total funding
$210M
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
How many Security & Safety jobs are open in Hong Kong Island, China right now?
There are currently 89 open security & safety positions in Hong Kong Island, China listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Security & Safety roles in Hong Kong Island, China?
Companies currently hiring include JLL, HKT, Amazon, OKX, Marriott International Hotels, Inc., among others. Browse the listings above to see every active employer.
Are there remote or hybrid Security & Safety jobs in Hong Kong Island, China?
Yes — 5 of the 89 open security & safety positions offer remote or hybrid work (0 remote, 5 hybrid).
How do I apply for Security & Safety jobs in Hong Kong Island, China?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.