Senior Low Latency Java Architect

Architect low-latency Java risk platforms as a senior engineering leader, using concurrency, performance tuning, and distributed systems expertise. This full-time role supports global trading desks.The Applications Development Technical Lead Analyst serves as principal designer, systems architect, and hands-on lead engineer. You will build mission-critical platforms for real-time credit checks, position aggregation, margin valuation, and risk limits. The work spans global Client Risk and Position Management technology.Key Responsibilities:
Lead architecture for fault-tolerant risk calculation enginesDevelop and optimize Java 17/21+ production codeDesign event-driven pipelines using Apache Kafka and Solace PubSub+Profile CPU, memory, garbage collection, and network performanceTranslate quantitative risk models into deterministic architectureRequirements:
Proficiency in modern Java and JVM internalsKnowledge of lock-free data structures and concurrent programmingExperience tuning microsecond and sub-millisecond latencyBachelor's degree in computer science or related STEM disciplineC++ or Rust knowledge is desirableApply Java architecture, concurrency, and low-latency engineering expertise to Citi's global risk technology platforms.
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