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.NET Senior Developer

Canada, Mississauga Employment contract 94300.00 - 141500.00 USD / Year · Job Posted July 04, 2026
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Job Description

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 industry-leading 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 .NET Developer to join our team. In this role, you will be responsible for the end-to-end design, development, and deployment of sophisticated market data 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 .NET 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 market data platform, from the user interface down to the database.

Job Responsibility

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

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 C# (.NET Core) is required. Python is a bonus
  • 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 have

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

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