Senior Application Security Expert

We are looking for a seasoned Application Security Expert to strengthen the funds and blockchain security of our global crypto exchange. This role focuses on securing exchange systems, wallets, big data platforms, and market-making infrastructure, while also leading smart contract auditing and blockchain threat governance. country: CN all locations: [Shenzhen Hong Kong] commitment: Full-time Employee department: Security location: Shenzhen team: Security Responsibilities: · Lead application security governance for core systems (trading, wallet, big data risk analysis, market-making).· Web service log and API analysis, preferabally with AI.· Build monitoring and defense mechanisms for funds security; define baselines, compliance strategies, and incident response plans.· Identify and mitigate risks across the transaction lifecycle; apply big data/ML.· Audit and automate detection of smart contract vulnerabilities.· Research blockchain attack vectors, develop detection rules, and deploy on-chain monitoring tools. Requirements: · Bachelor’s degree or above in Computer Science, Information Security, Cryptography, or related field.· 5+ years of experience in application security, blockchain security, or financial risk control; exchange/fintech background preferred.· Strong knowledge of exchange funds flow logic and application security frameworks.· Hands-on experience with smart contract auditing tools (e.g., Slither, Mythril, Echidna, Foundry).· Skilled in big data analysis & risk modeling (Spark, Elasticsearch, Graph DB, ML-based anomaly detection).· Strong offensive/defensive security mindset, cross-team collaboration skills, and ability to drive governance into practice.· Proficient in English; able to follow cutting-edge blockchain security research.