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Groupe SII

Développeur C#.NET (Senior)

Montreal, QC, Canada

Job type: Full-time
Apply by: Oct 30, 2026
Posting language: English · French
Posted: Sep 30, 2026

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Applications open in a new tab.

Original job description

English section of this bilingual listing.

You will contribute to the entire software development lifecycle, from requirements analysis to production support, while applying software engineering best practices and working within an Agile team.

Design, develop, and maintain mission-critical applications using C# and .NET technologies.
Participate in solution architecture, technical analysis, and system design activities.
Develop high-performance multithreaded applications.
Perform testing, deployment, and production support activities.
Collaborate with stakeholders in an Agile delivery environment.
Contribute to the continuous improvement of development and delivery processes.

Profile

Minimum 8 years of experience in software development using C# and .NET.
Strong experience with multithreaded application development.
Excellent knowledge of Microsoft Azure services.
Strong SQL database expertise and performance optimization skills.
Experience with Angular and/or React.
Hands-on experience with DevOps tools and practices including Git, Jenkins, Docker, and Kubernetes.
Solid understanding of software design principles and development best practices.

Nice To Have

Experience with Elastic Search.
Knowledge of monitoring and observability tools such as Grafana.
Experience in capital markets, collateral management, or banking environments.
Knowledge of exchange-traded products, including equities and futures.

Read the full bilingual original

Missions

Dans le cadre d’un projet d’envergure dans le secteur bancaire, vous participerez à la conception, au développement, aux essais et au déploiement d’applications critiques au sein d’un environnement Azure Full Stack.

Vous contribuerez à l’ensemble du cycle de développement logiciel, de l’analyse des besoins jusqu’au support en production, en appliquant les meilleures pratiques de développement et en évoluant au sein d’une équipe Agile.

Responsabilités

Concevoir, développer et maintenir des applications critiques basées sur les technologies C# et .NET.
Participer à l’architecture, à l’analyse technique et à la conception des solutions.
Développer des applications performantes dans un environnement multithread.
Assurer les tests, le déploiement et le support des applications en production.
Collaborer avec les différentes parties prenantes dans un contexte Agile.
Contribuer à l’amélioration continue des processus de développement et de livraison

Profil

Minimum de 8 années d’expérience en développement logiciel avec les technologies C# et .NET.
Solide expérience en développement d’applications multithreadées.
Excellente maîtrise des services Microsoft Azure.
Forte expertise en bases de données SQL et optimisation des performances.
Expérience avec Angular et/ou React.
Bonne connaissance des outils et pratiques DevOps : Git, Jenkins, Docker et Kubernetes.
Maîtrise des principes de conception logicielle et des bonnes pratiques de développement.

Atouts

Expérience avec Elastic Search.
Connaissance des outils de surveillance et d’observabilité tels que Grafana.
Expérience dans les marchés financiers, la gestion des garanties (Collateral Management) ou les services bancaires.
Connaissance des produits négociés en bourse, notamment les actions et les contrats à terme (futures).

Responsibilities

As part of a large-scale banking project, you will be involved in the design, development, testing, and deployment of critical applications within a Full Stack Azure environment.

You will contribute to the entire software development lifecycle, from requirements analysis to production support, while applying software engineering best practices and working within an Agile team.

Design, develop, and maintain mission-critical applications using C# and .NET technologies.
Participate in solution architecture, technical analysis, and system design activities.
Develop high-performance multithreaded applications.
Perform testing, deployment, and production support activities.
Collaborate with stakeholders in an Agile delivery environment.
Contribute to the continuous improvement of development and delivery processes.

Profile

Minimum 8 years of experience in software development using C# and .NET.
Strong experience with multithreaded application development.
Excellent knowledge of Microsoft Azure services.
Strong SQL database expertise and performance optimization skills.
Experience with Angular and/or React.
Hands-on experience with DevOps tools and practices including Git, Jenkins, Docker, and Kubernetes.
Solid understanding of software design principles and development best practices.

Nice To Have

Experience with Elastic Search.
Knowledge of monitoring and observability tools such as Grafana.
Experience in capital markets, collateral management, or banking environments.
Knowledge of exchange-traded products, including equities and futures.

Partenaire technologique de grandes entreprises depuis 1979, le Groupe SII est au cœur de l'économie de l'innovation, avec 16 000 employés, une présence internationale dans 20 pays et un chiffre d'affaires dépassant 1,621 milliard de dollars canadiens.

SII Canada offre à ses clients une expertise technique de pointe dans les domaines du développement d'applications, du web et du mobile, de la cybersécurité et du cloud computing. Nous fournissons également des services d'ingénierie, notamment pour les systèmes embarqués dans divers secteurs industriels. Notre ambition est de faire progresser les systèmes d'information et de contribuer à la création des produits et services de demain pour nos clients.

De plus, l'inclusion est au cœur de notre culture d'entreprise. SII Canada s'engage à offrir un environnement de travail équitable et respectueux qui favorise la diversité et l'égalité des chances

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More about this job

Responsibilities

Design, develop, test, deploy, and maintain mission-critical C#/.NET applications in an Azure environment, including high-performance multithreaded systems. Contribute to architecture and technical analysis, support applications in production, collaborate with stakeholders in an Agile team, and improve development and delivery processes.

Requirements

Requires at least 8 years of C#/.NET software development experience, strong multithreaded development skills, excellent Microsoft Azure knowledge, and SQL expertise including performance optimization. Candidates should also have experience with Angular and/or React, Git, Jenkins, Docker, and Kubernetes; capital markets, collateral management, banking, Elastic Search, and Grafana experience are advantageous.

Skills

C#
.NET
Multithreaded Application Development
Microsoft Azure
SQL
Database Performance Optimization
Angular
React
Git
Jenkins
Docker
Kubernetes
Software Architecture
Agile
Elastic Search
Grafana

Visa sponsorship

Not detected in the job text

Keywords

C#
.NET
Microsoft Azure
Full-Stack Development
Multithreading
SQL
Database Performance Optimization
Angular
React
Git
Jenkins
Docker
Kubernetes
Software Architecture
Technical Analysis
Software Design
Agile
Testing
Deployment
Production Support
Elastic Search
Grafana
Capital Markets
Collateral Management
Banking
Equities
Futures
DevOps

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