Lead Java Software Engineer

Citi•Mississauga, ON

5d•Onsite

About The Position

Join the Citi Futures Technology team, a dynamic and fast-paced group at the heart of a growing global business. We are seeking a talented Senior Java Engineer to drive the architecture, design, and implementation of our Futures Data as a Service post-trade orders & executions application. This is a hands-on role where you will tackle complex technical challenges in a low-latency, high-throughput environment. You will play a key role in building resilient and high-performing scalable solutions that directly impact our trade consumption, enrichment and reporting.

Requirements

8+ years of professional experience in a hands-on software architecture, design and development role.
Deep, demonstrable knowledge of server-side Java, including multi-threading, performance tuning, and building robust, scalable applications.
Proven experience in architecting, designing and implementing complex, distributed systems and cloud microservices.
Strong expertise with relational databases, including data modeling, query optimization, and performance tuning.
Hands-on experience with high-throughput messaging platforms, specifically Kafka and Solace.
Solid experience with modern CI/CD pipelines and tools (Git, Jenkins, Maven/Gradle).
A strong thought-leader, communicator and collaborator with a proven track record of success in an Agile delivery environment.
Bachelor’s degree in computer science, Engineering, or a related field.

Nice To Haves

Subject matter expertise in financial markets, particularly in exchange traded derivatives and futures trading.
Experience developing and deploying applications on container platforms like Docker, Kubernetes, or OpenShift.
Familiarity with NoSQL databases such as MongoDB.
Experience with FIX Protocol.
Experience with leveraging AI tools.
A Master’s degree is a plus.

Responsibilities

Architect, design, build, and maintain high-performance, scalable, and reliable Java-based microservices.
Tackle challenging technical problems related to concurrency, low-latency messaging, and large-scale data processing in a distributed environment.
Work within a global Agile team to analyze complex business requirements, collaborating with traders, product managers and other key business stakeholders to deliver elegant and effective technical solutions.
Uphold and contribute to our high standards for code quality, automated testing (unit, integration and regression), code reviews, and CI/CD practices.
Drive the evolution of our platform by leveraging modern technologies like Kafka, Docker, and OpenShift, and contribute to the strategic transformation of our architecture.
Serve as a technical advisor and coach to mid-level and senior developers and analysts, fostering a culture of technical excellence and continuous improvement.
Take ownership of the full development lifecycle, from Architecture, design and implementation to deployment and operational support, ensuring the stability and integrity of our production environment.
Appropriately assess risk when business decisions are made, demonstrating consideration for the firm's reputation and safeguarding Citigroup, its clients, and assets. You will drive compliance with applicable laws, rules, and regulations, apply sound ethical judgment, and escalate control issues with transparency.