Staff/Senior Staff Engineer, Web3 Wallet
OKX
Singapore
Posted on Oct 22, 2025
OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa
About OKX
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.
About the Opportunity
The Web3 Wallet Team is responsible for building the Backend Infrastructure for OKX's Account Abstraction (AA) Wallet. They are also responsible for the Backend development of core products such as OKX Pay and Centralized Decentralized (CeDeFi) Wallets.
What You’ll Be Doing
- Design and develop highly performant and highly available Distributed Backend services for core products like OKX Pay and AA Wallet
- Explore emerging opportunities in DeFi to promote growth and bridge Centralized and Decentralized solutions
- Solve complex business logic challenges and drive improvements for global user experiences
- Engage in research to leverage on new technologies in the DeFi space like SUI, Solana and Aptos
What We Look For In You
-
Bachelor's Degree in Computer Science/Engineering or in a related field with at least 6 years of industry experience.
- Experience in the following areas:
- Familiar with the Java programming language
- Solid understanding of core Blockchain fundamentals like the Ethereum Virtual Machine (EVM) and Ethereum Architecture
- Backend Development experience in Web3 or DeFi related applications
Nice to Haves
- Professional working experience with languages like Go or Rust
- Knowledge of ERC-4337 or other related protocols
- Experience with Blockchain Technologies like SUI, Solana and Aptos
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!
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