C

Citi

Runs banking and payments for global clients

Low Latency Java Developer - Vice President

Backend EngineeringConfirmed live in the last 24 hours
Full-timeMississauga, ON, Canada$120.8k - $170.8kHybrid

About the Job

Requirements

  • Proficiency in modern Java (17/21+), JVM internals, memory management and profiling, lock-free data structures, concurrent programming, and low-latency tuning.
  • A bachelor's degree or university degree in Computer Science, Computer Engineering, Software Engineering, or an equivalent STEM discipline.

Responsibilities

  • Lead end-to-end technical architecture and low-level design for distributed, fault-tolerant, high-concurrency risk calculation and position management engines supporting global trading sessions.
  • Write, review, and optimize high-performance, multi-threaded production code primarily in Java (Java 17/21+), with targeted high-performance/low-latency modules in C++ and exploration of Rust where ultra-low latency memory safety and deterministic execution are required.
  • Champion modern AI development workflows, including GitHub Copilot, Devin, AI-driven code review, and automated test generation, to enhance developer productivity, modernize legacy components, and accelerate time-to-market.
  • Design resilient, low-latency, event-driven pipelines using enterprise messaging backbones such as Apache Kafka, Solace PubSub+, and other low-latency middleware fabrics.
  • Profile, benchmark, and optimize CPU usage, memory layout, garbage collection overhead, network serialization, and inter-process communication for microsecond/sub-millisecond latency.
  • Act as a technical contact and subject matter expert for Risk Managers, Product Owners, Trading Desks, Quantitative Analysts, and Operations across APAC and global hubs.
  • Partner with regional and global engineering pods across Singapore, London, New York, and other technology centers to ensure platform rollouts, operational stability, and cohesive architecture standards.
  • Interface with upstream Order Management Systems, Execution Management Systems, Market Data feeds, and downstream Clearing/Settlement and Regulatory reporting platforms across multiple asset classes, including FX, Equities, Rates, Commodities, and Credit.
  • Translate quantitative risk models, margin methodologies, and regional/global regulatory requirements into scalable, deterministic technical architecture.
  • Lead, coach, and mentor mid-level and junior engineers in Singapore and regional teams in distributed systems design, clean code practices, and modern AI-assisted engineering techniques.
  • Lead architectural design reviews and peer code reviews to ensure reliability, security, and maintainability across distributed codebases.
  • Partner with engineering managers and Scrum Masters across time zones on sprint planning, technical estimations, dependency resolution, and milestone delivery.

Desired Qualifications

  • Practical experience or working knowledge of C++ (14/17/20) and/or Rust for performance-critical, memory-safe, or low-latency system components and cross-language interoperability (JNI, FFI).
  • A master's degree in Computer Science, Financial Engineering, or a related quantitative field.

About the Company

Citi

Runs banking and payments for global clients

Citi runs banking, investment and payment services for companies, governments and individuals around the world. Its global network connects institutions with local banking systems, while its US consumer business sells credit cards and deposit accounts. Corporate clients use Citi to manage cash, finance trade and raise capital, and investors use its trading, custody and wealth services to hold and manage assets. The bank earns interest on loans and fees from payments, securities transactions, financial advice and account services. Citi traces its banking roots to 1812; the Citigroup holding company was formed in 1998, and its headquarters are in New York City.

Company size
10,001+
Company stage
IPO
Headquarters
New York City, New York
Founded
1812

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