Senior C# .NET Backend Developer

Nöord Technologies; Montreal (administrative region); Hybrid; CAD 110,000 - 160,000; Full time

Benefits offered by this job

Relocation package

Job summary

Nöord Technologies in Montreal is seeking an experienced Senior C# .NET Backend Developer to own the server-side architecture powering real-time risk and market data processing in Capital Markets.

You will work on high-throughput, low-latency services, collaborate with global teams, and uphold SOLID engineering practices, TDD/BDD, and CI/CD automation.

Qualifications

• 8+ years of backend software engineering with C# / .NET Core.
• Deep expertise in concurrent programming, multithreading, and high-performance server architectures.
• Production experience with Kafka, SignalR, APIs, Kubernetes, AWS, ELK, and Git.
• Strong software craftsmanship with SOLID, clean architecture, and unit/integration testing (BDD).
• Prior Capital Markets or financial derivatives experience preferred.
• Fluent English; French is a plus.

Responsibilities

• Architect, build, and optimise high-throughput, low-latency C# .NET Core backend services.
• Scale real-time computation engines for market risk and curve generation.
• Collaborate with international teams across North America, Europe, and Asia.
• Provide tier-3 backend expertise for trading operations during market hours.
• Enforce engineering standards: clean code, SOLID, TDD/BDD, event-driven architectures.
• Improve CI/CD pipelines and distributed messaging infrastructures.

Skills

C#

.NET Core

Multithreading

Kafka

SignalR

Kubernetes

AWS

ELK

Git

SOLID principles

TDD/BDD

Capital Markets

Job description

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.