Senior Java Engineer – Fund Security & Account Security

New
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BinanceFinancial services
Location: Australia; Hong Kong; Singapore; TaiwanFull-TimeSenior
Salary not disclosed
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Job Details

Languages
Bilingual English/Mandarin is required
Experience
5+ years in financial services (payments, banking, exchanges, etc.)
Required Skills
JavaJVMKafkaMySQLSpring BootRedisDistributed Systems

Requirements

  • Have 5+ years of experience in financial services, such as payments, banking, or exchanges.
  • Have hands-on experience in fund security and reconciliation.
  • Bring expert Java skills and a solid grasp of the JVM, concurrency, and distributed systems.
  • Understand high-availability and strongly consistent systems.
  • Have experience with Java technologies such as Spring Boot, Spring Cloud, and MyBatis, and databases and messaging tools such as MySQL, Redis, Kafka, or RocketMQ.
  • Understand distributed transactions, idempotency, and eventual consistency, and have designed and shipped financial systems end to end.
  • Know clearing and settlement processes and double-entry bookkeeping.
  • Be familiar with bank integrations, including APIs, SFTP reconciliation files, and ISO 20022 or SWIFT messages.
  • Use AI tools regularly and have hands-on experience building LLM applications, including prompt engineering, RAG, and agents.
  • Be bilingual in English and Mandarin.

Responsibilities

  • Design security controls for deposit, withdrawal, and trading flows to prevent, block, and detect potential fund losses.
  • Build account-security controls, including account status management, fund freezing and unfreezing, sensitive-operation protection, and abnormal-behavior detection.
  • Integrate banks and third-party payment providers, making callbacks, status synchronization, idempotency, and retries reliable.
  • Work with internal accounting and clearing and settlement systems to keep fund flows aligned with the ledger.
  • Build channel, internal, and multi-party reconciliation; detect breaks, handle suspense accounts and adjustments, and resolve discrepancies.
  • Build reconciliation checks and fund-loss alerts, and lead investigations, containment, and post-mortems for fund-related incidents.
  • Use LLMs and AI tools for anomaly detection, root-cause analysis, smart reconciliation, and operations support.
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