ZK Cryptography Engineer - Web3 User Data Platform
TokalentHong Kong, Hong Kong SAR, Hong Kong
Posted December 11, 2025
Full Time
About the Company
Tokalent is a specialized recruitment agency that connects Web3.0 companies with top‑tier talent across technical, operational, and executive functions. The firm focuses on roles such as developers, compliance, legal, operations, risk, sales, marketing, executives, licensed professionals, and investment specialists within the digital asset space. By leveraging deep industry expertise and a rigorous vetting process, Tokalent streamlines the hiring journey for blockchain and crypto firms, reducing time‑to‑fill and ensuring cultural fit. Its niche focus on Web3.0 and digital assets sets it apart from traditional headhunters, making it a trusted partner for companies navigating the fast‑evolving crypto landscape.
Job Description
Our client is a trusted user data platform for Web3 and is looking for a Zero-Knowledge Cryptography Engineer to develop and implement cryptographic, zero-knowledge (ZK) solutions to enable secure and private communication between their core Web3 platform and their enterprise clients.
Requirements
- Design and implement ZK solutions that allow privacy-preserving interaction with user data
- Develop and optimize ZK circuits and ZK primitives
- Research various ZK techniques and tools to best leverage as necessary
- Create and maintain technical documentation on ZK
- 5+ years of experience and proven track record in an Engineering role
- Strong knowledge and experience in cryptography protocols and zero-knowledge proofs (e.g. zk-SNARKs), having shipped ZK circuits
- Familiarity with ZK-related languages, libraries, and tools, such as Circom, ZoKrates, snarkjs, halo2, etc.
- Proficiency in Rust or C/C++
- Bachelors or higher degree in Computer Science, Math, or a related field
- Ability to problem-solve creatively and pragmatically
- An appreciation for the importance of good documentation
- Effective written and verbal English communication
- Attention to detail
- An entrepreneurial mindset, and the ability to thrive in a startup environment
- Experience with and knowledge of Web3 and blockchain concepts and technologies
