C

Citi

Runs banking and payments for global clients

Lead Architect - C++ and Java

Backend EngineeringConfirmed live in the last 24 hours
Full-timePune, Maharashtra, IndiaNo salary listedHybrid

About the Job

Requirements

  • At least 10 years of experience writing, reviewing, and optimizing high-performance, multithreaded production code, primarily in C++.
  • Practical experience or working knowledge of Java for performance-critical, memory-safe, or low-latency system components and cross-language interoperability.
  • Proficiency in modern C++, memory management and profiling, lock-free data structures, concurrent programming, and low-latency tuning on Linux platforms.
  • Hands-on experience writing SQL procedures and practical knowledge of indexes.
  • 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, multithreaded production code, primarily in C++, with targeted high-performance or low-latency modules in Java; explore Rust where ultra-low latency, memory safety, and deterministic execution are required.
  • Champion AI development workflows, including GitHub Copilot, Devin, AI-driven code review, and automated test generation, to enhance developer productivity, modernize legacy components, and accelerate delivery.
  • Design resilient, low-latency, event-driven pipelines using enterprise messaging backbones such as Apache Kafka, Solace PubSub+, and other low-latency middleware fabrics.
  • Write SQL queries and improve their efficiency.
  • Profile, benchmark, and optimize CPU usage, memory layout, network serialization, and inter-process communication for low 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 teams to support platform rollouts, operational stability, and cohesive architecture standards.
  • Coordinate with upstream Order Management Systems, Execution Management Systems, and Market Data feeds, and with downstream Clearing/Settlement and Regulatory reporting platforms across multiple asset classes.
  • Translate quantitative risk models, margin methodologies, and regional and global regulatory requirements into scalable, deterministic technical architecture.
  • Lead, coach, and mentor junior engineers 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

  • 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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