Java Developer, Equities Trading, Vice President

Citi; Mississauga; On-site; CAD 172,000 - 243,000; Full time

Job summary

The Citi Equities Technology team is seeking a VP-level Java Developer to join the Equities Electronic Trading group. You will design, develop, and optimize our low-latency core platform, focusing on the Smart Order Router and high-throughput routing across venues.

You'll collaborate with product, quant researchers, and other tech teams to deliver new trading capabilities, improve testing and deployment, and ensure resilience and best execution.

Qualifications

• HHands-on experience in high-performance, low-latency systems.
• Expert-level Core Java, JVM internals, concurrency and memory management.
• Experience designing automated trading systems, especially with Smart Order Routers.
• Knowledge of FIX and market data handling.

Responsibilities

• Design, develop, and optimize high-performance microservices and applications, focused on the Smart Order Router.
• Implement routing logic, venue analysis, and performance optimizations for best execution.
• Lead design discussions and conduct code reviews to ensure quality and architecture.
• Collaborate with product, quantitative researchers, and other technology teams.
• Drive testing frameworks, tooling, and deployment processes in a low-latency environment.
• Analyze business requirements and system processes to resolve complex challenges.
• Maintain robust monitoring, trade reconciliation, and application recovery.
• Ensure compliance with laws, Citi policies, and risk controls.

Skills

Low-latency Java

Core Java internals

Smart Order Router

Microservices

FIX protocols

CI/CD

Agile

Messaging tech

Ansible

Distributed systems

Testing frameworks

Communication skills

Education

Bachelor's degree

Job description

What We do / The Team

Equities Technology at Citi is undertaking a bold, multi-year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining. We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, enabling new capabilities in advanced execution, global market connectivity, and modernized post‑trade, clearing and margin processes. Our ambition is to deliver a seamlessly integrated, highly automated platform that drives outstanding client outcomes and accelerates growth across our global franchise. As part of the team, you’ll collaborate closely with high‑caliber engineers and deeply engaged business and product partners - working together to define and deliver the next generation of Equities technology at Citi.

Role Overview/What will you do:

We are seeking a highly skilled and experienced Java Developer to join our Equities Electronic Trading team. This is a VP-level position responsible for the design, development, and optimization of our core low-latency execution platform. The overall objective of this role is to drive the technical implementation and innovation of our SOR, a critical component of our electronic trading infrastructure, utilizing modern, high-performance Java and microservices architecture.

• Take a leading role in the design, development, and optimization of high-performance, low-latency microservices and applications, with a primary focus on the Smart Order Router.
• Implement and enhance complex routing logic, venue analysis models, and performance optimizations to ensure best execution and system stability.
• Participate in and lead technical design discussions and conduct rigorous code reviews to ensure the highest standards of quality, performance, and architectural integrity.
• Partner with product development, quantitative researchers, and other technology teams to deliver new trading capabilities and enhance existing systems.
• Drive continuous improvement initiatives in testing frameworks, development tools, and deployment processes for our low-latency and high-throughput environment.
• Resolve complex technical challenges through in-depth analysis of business requirements, system processes, and industry best practices.
• Apply expert knowledge of system architecture, data flow, and development standards for coding, testing, debugging, and implementation.
• Build and maintain robust solutions for trading platform monitoring, trade reconciliation, and application recovery.
• Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.

Key Skills and Experience required:

• Hands‑on experience in software development with a strong focus on high‑performance, low‑latency systems (required)
• Expert‑level technical knowledge in Core Java, including a deep understanding of JVM internals, concurrency, garbage collection, and memory management in a low‑latency context.
• Proven experience designing and developing automated trading systems, specifically with Smart Order Routers in Equities or other similar financial domains (preferred)
• Solid understanding of financial market protocols (e.g., FIX) and practical experience handling order and market datasets.
• Experience with microservices architecture and developing distributed systems.
• Demonstrable experience with modern testing frameworks, Agile methodologies, and Continuous Integration/Continuous Delivery (CI/CD) processes.
• Excellent communication skills with a demonstrable ability to present and grasp complex technical and business concepts.
• Familiarity with messaging and data grid technologies (e.g., Solace, AMPS, Chronicle) and infrastructure automation tools (e.g., Ansible) is a plus.

Education:

• Bachelor’s degree/University degree

Primary Location Full Time Salary Range:

$120,800.00 - $170,800.00

Time Type:

Full time

Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

This job opening is for an existing job vacancy.

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