Senior Full stack .Net Developer

Mantu; Montreal (administrative region); On-site; CAD 100,000 - 150,000; Full time

Job summary

Mantu is seeking a hands-on Senior Full Stack .NET Developer to join an enterprise technology team responsible for building, integrating, and supporting business-critical applications and collaboration platforms in Montreal. You will work with senior engineers, product owners and stakeholders to design scalable, secure software across front-end and back-end tech.

You'll design and implement features using C#, .NET Core, SQL Server and modern front-end frameworks, develop REST APIs, participate

Qualifications

• 7+ years of professional software development using Microsoft technologies.
• Strong hands-on expertise with C#, .NET Core / ASP.NET Core, SQL Server, REST APIs, and Entity Framework.
• Experience developing and supporting enterprise apps, including source control, CI/CD pipelines, automated testing, and Agile delivery practices.
• Experience with SaaS integrations, OAuth/OIDC/SAML authentication, Docker/Kubernetes, Azure or AWS, and modern software engineering practices is considered an asset.

Responsibilities

• Design, develop, and maintain enterprise applications using C#, .NET Core / ASP.NET Core, SQL Server, and modern front-end frameworks such as Angular or React.
• Develop and support REST APIs, backend services, automation solutions, and integration components for internal and external platforms.
• Deliver new features, enhancements, and modernization initiatives for business-critical applications and onboarding/lifecycle management platforms.
• Troubleshoot and resolve production issues across applications, APIs, integrations, and databases while ensuring system reliability and performance.
• Participate in code reviews, technical design sessions, architecture discussions, Agile ceremonies, and DevOps initiatives to improve software quality and delivery practices.
• Collaborate with product owners, business users, and stakeholders to gather requirements, translate business needs into technical solutions, and maintain technical documentation and operational procedures.

Skills

C#

.NET Core

ASP.NET Core

SQL Server

REST APIs

Entity Framework

Angular

React

CI/CD

Docker

Kubernetes

Azure

AWS

OAuth/OIDC

SAML

Tools

Git

CI/CD Tools

Azure

AWS

Docker

Kubernetes

Job description

We are seeking a hands-on Senior Full Stack .NET Developer to join an enterprise technology team responsible for building, integrating, and supporting business-critical applications and collaboration platforms. The successful candidate will work closely with senior engineers, product owners, and business stakeholders to design and deliver scalable, secure, and maintainable software solutions across both front-end and back-end technologies.

Main Responsibilities

• Design, develop, and maintain enterprise applications using C#, .NET Core / ASP.NET Core, SQL Server, and modern front-end frameworks such as Angular or React.
• Develop and support REST APIs, backend services, automation solutions, and integration components for internal and external platforms.
• Deliver new features, enhancements, and modernization initiatives for business-critical applications and onboarding/lifecycle management platforms.
• Troubleshoot and resolve production issues across applications, APIs, integrations, and databases while ensuring system reliability and performance.
• Participate in code reviews, technical design sessions, architecture discussions, Agile ceremonies, and DevOps initiatives to improve software quality and delivery practices.
• Collaborate with product owners, business users, and stakeholders to gather requirements, translate business needs into technical solutions, and maintain technical documentation and operational procedures.

Qualifications

• 7+ years of professional software development experience using Microsoft technologies.
• Strong hands‑on expertise with C#, .NET Core / ASP.NET Core, SQL Server, REST APIs, and Entity Framework.
• Experience developing and supporting enterprise applications, including source control, CI/CD pipelines, automated testing, and Agile delivery practices.
• Strong troubleshooting, analytical, communication, and problem‑solving skills with a demonstrated ownership and accountability mindset.
• Experience with SaaS integrations, OAuth/OIDC/SAML authentication, Docker/Kubernetes, Azure or AWS, and modern software engineering practices is considered an asset.