Market Data Sr Developer - Python and .Net - Assistant Vice President

Citi•Mississauga, ON

7d•Onsite

About The Position

The Fixed Income Technology team is a dynamic and fast-paced group responsible for developing and maintaining the trading, pricing, and risk management systems that support the firm's global Fixed Income business. We work directly with traders, quantitative analysts, and risk managers to deliver innovative solutions that provide a competitive edge in the market. Our mission is to build robust, scalable, and high-performance applications that are critical to the success of the business. We are seeking a talented and highly motivated Senior Full Stack Developer to join our team. In this role, you will be responsible for the end-to-end design, development, and deployment of sophisticated applications for the Fixed Income trading desk. The ideal candidate is a passionate technologist with a strong command of both front-end and back-end development, comfortable working with complex financial data and demanding real-time requirements. You will play a key role in building the next generation of our marketdata platform, from the user interface down to the database.

Requirements

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.
8+ years of professional experience in software development, with a proven track record as a Full Stack Developer.
Strong proficiency in JavaScript/TypeScript, HTML5, and CSS3.
Hands-on experience with at least one modern front-end framework (e.g., React, Angular).
Strong proficiency in a server-side language C# (.NET Core) and Python (Intermediate knowledge) is required.
Having coding experience in Java (Spring Boot) is a bonus.
Experience designing and building RESTful APIs and microservices.
Solid experience with relational databases (PostgreSQL, SQL Server, Oracle) including schema design and query optimization.
Experience with NoSQL databases (MongoDB, Redis, Cassandra).
Proficiency with version control systems, primarily Git.
Experience with CI/CD pipelines and tools (Jenkins, Tekton, Harness).
Familiarity with containerization technologies like Docker and orchestration with Kubernetes.
Excellent problem-solving and analytical skills.
Strong communication and interpersonal skills, with the ability to work effectively with both technical and non-technical stakeholders.
Ability to work under pressure in a fast-paced environment.

Nice To Haves

Prior experience in Financial Services, particularly within Fixed Income (Bonds, Swaps, Futures, Options) or other capital markets domains.
Experience with developing and deploying applications on a major cloud platform (AWS, Azure, GCP).
Experience with real-time messaging technologies like Kafka, RabbitMQ, or Solace.
Experience with low-latency programming, multithreading, and performance optimization.
Strong believer in automated testing with experience in TDD/BDD practices.

Responsibilities

Design, build, test, and deploy high-quality, scalable, and robust full-stack applications for Fixed Income trading, and risk management.
Create intuitive, responsive, and high-performance user interfaces using modern web technologies (e.g., React, Angular) to visualize marketdata and workflows.
Develop resilient server-side logic, microservices, and APIs to handle trade processing, data management, and integration with various internal and external systems.
Work closely with traders, quants, and business analysts to gather requirements, understand complex financial workflows, and translate them into technical solutions.
Participate in architectural design discussions and contribute to the overall vision and strategy for the technology platform.
Write clean, maintainable, and well-documented code. Participate in code reviews to ensure high standards of quality and consistency.
Design and manage database schemas and write efficient queries for both SQL and NoSQL databases.
Provide timely support for production applications, troubleshoot issues, and ensure system stability and performance.
Actively participate in an Agile development environment, including sprint planning, daily stand-ups, and retrospectives.