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 engines
• Develop and optimize Java 17/21+ production code
• Design event-driven pipelines using Apache Kafka and Solace PubSub+
• Profile CPU, memory, garbage collection, and network performance
• Translate quantitative risk models into deterministic architecture

Requirements:

• Proficiency in modern Java and JVM internals
• Knowledge of lock-free data structures and concurrent programming
• Experience tuning microsecond and sub-millisecond latency
• Bachelor's degree in computer science or related STEM discipline
• C++ or Rust knowledge is desirable

Apply Java architecture, concurrency, and low-latency engineering expertise to Citi's global risk technology platforms.