Senior C# .NET Backend Developer

Job summary

Architect, build, and optimize high-throughput, low-latency C# .NET Core backend services and distributed components for real-time market risk and interest rate curve systems. Collaborate with international teams, support North American trading operations, and improve engineering standards, testing, CI/CD pipelines, telemetry, and messaging infrastructure.

Job details

At Nöord Technologies, we empower top-tier financial institutions with exceptional talent in banking and capital markets. For the needs of one of our prestigious clients, a major banking actor in Montreal currently experiencing strong growth, we are actively seeking an experienced Senior C# .NET Backend Developer. About the Role As part of a high-performing Capital Markets technology team, you will take full ownership of the server-side architecture and core services powering mission-critical financial applications. You will work on robust, data-centric systems used in real time by global trading desks to compute risk exposure and process complex interest rate curve models. This is a pure backend engineering role. We are seeking a hardcore C# / .NET engineer who thrives on low-latency processing, distributed architectures, clean engineering practices, and high-throughput data pipelines. Important Note: Profiles focused primarily on ASP.NET Web/Frontend fullstack development will not be considered. This role demands deep backend and systems-level expertise. Key Responsibilities Architect, build, and optimize high-throughput, low-latency C# .NET Core backend services and distributed components. Enhance and scale real-time computation engines used for market risk tracking and interest rate curve generation. Collaborate closely with international cross-functional teams (Product, QA, Architecture, Global Trading Desks) across North America, Europe, and Asia. Provide tier-3 backend technical expertise and support for North American trading operations during active market hours. Enforce rigorous engineering standards: clean code, SOLID principles, comprehensive test coverage (TDD/BDD), and event-driven architectures. Continuously improve and automate CI/CD delivery pipelines, telemetry, and distributed messaging infrastructures. Requirements Candidate Profile & Technical Requirements Experience: Minimum 8+ years of dedicated backend software engineering experience with C# / .NET Core. Backend Mastery: Deep expertise in concurrent programming, multithreading, memory management, microservices, and high-performance server architectures. Technical Ecosystem: Proven production experience with event-driven and distributed systems using technologies such as Kafka, SignalR, APIs, Kubernetes, AWS, ELK, and Git. Craftsmanship: Strong Software Craftsmanship mindset (SOLID principles, clean architecture, unit/integration testing, BDD). Domain Knowledge: Prior experience in Capital Markets, investment banking, or financial derivatives (Fixed Income, Rates, FX, Risk systems) is strongly preferred. Languages: Fluent English is mandatory (daily collaboration with international teams); French is a valuable asset / nice to have. Benefits Position Details & Conditions Location: Montreal, QC (Hybrid model). Contract Duration: 12-month contract (renewable, with potential conversion to a permanent role). Start Date: ASAP. Work Authorization: Must be legally authorized to work in Canada (valid Canadian work permit, permanent residency, or citizenship). Relocation: A comprehensive relocation package is available for eligible candidates moving to Montreal.

What you’ll do

Architect, build, and optimize high-throughput, low-latency C# .NET Core backend services and distributed components for real-time market risk and interest rate curve systems. Collaborate with international teams, support North American trading operations, and improve engineering standards, testing, CI/CD pipelines, telemetry, and messaging infrastructure.

Requirements

Requires at least 8 years of dedicated C#/.NET Core backend engineering experience, with deep expertise in concurrency, multithreading, memory management, microservices, and high-performance server architectures. Production experience with distributed and event-driven technologies is required; capital markets or financial derivatives experience is strongly preferred, and fluent English is mandatory.

Benefits

• Relocation Package

Listed skills

• Kubernetes · Preferred
• Amazon Web Services · Preferred
• C++ · Preferred
• Git · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• C#
• .NET Core
• Backend Engineering
• Concurrent Programming
• Multithreading
• Memory Management
• Microservices
• Distributed Systems
• Event-Driven Architecture
• Kafka
• SignalR
• APIs
• Kubernetes
• AWS
• ELK
• Git

Job areas

• Software
• Technology
• Finance & Accounting

More jobs from Nöord Technologies