Blockchain Security Engineer: Protocols & Systems

FLY WING TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

BIT is 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-level threats.

This builder role is for someone who thinks like an attacker and designs like an engineer, with duties in protocol analysis, security re-architecture, and hands-on audits to improve resilience.

Qualifications

• Bachelor's degree or above in CS, cryptography, or security.
• Fresh graduate or up to 2 years of relevant experience.
• Strong knowledge of distributed systems and security practices.

Responsibilities

• Protocol Analysis & Design: analyze blockchain protocols and redesign wallet systems grounded in secure cryptographic mechanisms.
• System Security Re-architecture & Hardening: drive security-driven re-architecture and hardening of existing software systems.
• Research, Audit & Response: track cutting-edge blockchain attack techniques and lead security audits and remediation.

Skills

Systems programming

Distributed systems

Java / Go / Rust / C++

Education

Bachelor's degree or above

Job description

BIT is 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-level threats.

This builder role is for someone who thinks like an attacker and designs like an engineer, with duties in protocol analysis, security re-architecture, and hands-on audits to improve resilience.