Software Engineer

About BIT： BIT (formerly Matrixport) is a global digital asset financial services and infrastructure group. Headquartered in Singapore and founded in 2019, BIT bridges traditional finance and digital assets through governance-driven financial services and technology. The firm manages over US$7 billion in assets and facilitates more than US$7 billion in monthly trading volume.

BIT offers services including custody, trading, asset and wealth management, liquidity and financing solutions, and tokenised real-world assets (RWA), serving institutional and professional investors globally. BIT Group entities maintain a licensed and regulated footprint across Singapore, Hong Kong, Switzerland, the United Kingdom, the United States and Bhutan. For more information, visit [link] About the Role: We're hiring a Software Engineer focused on blockchain security and protocol design.

You'll work at the intersection of cryptography, distributed systems, and adversarial security — redesigning and hardening wallet and core systems against protocol- and architecture-level threats. This is a builder's role for someone who thinks like an attacker and designs like an engineer. What You'll Do: Protocol Analysis & Design Analyze and evaluate how mainstream blockchain protocols work under the hood (Ethereum/EVM, Cosmos SDK, Substrate, Solana, etc.), and redesign wallet systems grounded in secure cryptographic mechanisms.

Develop hardening and mitigation plans for the wallet system against known pr