Senior Full stack .Net Developer

Astek; Montreal (administrative region); On-site; CAD 110,000 - 140,000; Full time

Job summary

Astek is seeking a hands-on Senior Full Stack .NET Developer to design, build, and maintain modern web applications, APIs, and automation solutions. You will collaborate with senior engineers, product owners, and stakeholders to deliver secure, scalable software and support production systems.

The role emphasizes development of features, automation, testing, CI/CD, and DevOps practices, with on-call rotation and a focus on maintainability and quality.

Qualifications

• 6+ years of software development experience using Microsoft technologies.
• Strong hands-on experience with C#, .NET Core / ASP.NET Core, SQL Server, REST APIs, and Entity Framework.
• Strong front-end development experience using Angular, React, or similar frameworks.

Responsibilities

• Design, develop, and maintain enterprise applications using .NET, C#, SQL Server, and front-end frameworks like Angular or React.
• Develop REST APIs, backend services, and integration components.
• Build and enhance features within internal applications and automation tooling.
• Develop automation and tooling to improve operational efficiency and onboarding.

Skills

C#

.NET Core / ASP.NET Core

SQL Server

REST APIs

Angular

React

CI/CD

DevOps

Azure

Docker/Kubernetes

Job description

We are looking for a hands-on Senior Full Stack .NET Developer who enjoys building modern web applications, APIs, automation solutions, and integrations. The successful candidate will work closely with senior engineers, product owners, and business stakeholders to design and deliver scalable, secure, and maintainable software solutions.

This role is heavily focused on software engineering and will involve both new feature development and support of business-critical production systems.

Key Responsibilities

• Design, develop, and maintain enterprise applications using .NET, C#, SQL Server, and modern front-end frameworks such as Angular or React.
• Develop REST APIs, backend services, and integration components supporting internal and external platforms.
• Build and enhance features within SIMPL and other applications owned by the EUCS squad.
• Develop automation and tooling to improve operational efficiency, user onboarding, monitoring, and support processes.
• Troubleshoot and resolve production issues across applications, APIs, integrations, and databases.
• Participate in code reviews, architecture discussions, technical design sessions, and Agile ceremonies.
• Collaborate with product owners, users, and stakeholders to understand business requirements and translate them into technical solutions.
• Improve software quality through testing, automation, CI/CD, monitoring, and DevOps practices.
• Create and maintain technical documentation and operational procedures.
• Participate in an engineering on-call rotation (approximately 1 week every 8 weeks).

Required Skills

• 6+ years of software development experience using Microsoft technologies.

Strong hands-on experience with:

• C#
• .NET Core / ASP.NET Core
• SQL Server
• REST APIs
• Entity Framework

Strong front-end development experience using:

• Angular (preferred), React, or similar frameworks
• Experience developing and supporting enterprise applications.
• Experience with source control, CI/CD pipelines, and Agile development practices.
• Strong troubleshooting, problem-solving, and communication skills.
• Ownership mindset, accountability, and integrity.

Preferred Skills

Experience integrating with SaaS platforms such as Box, Google Workspace, Qualtrics, Microsoft 365, or similar services.

Experience with OAuth, OIDC, SAML, and modern authentication patterns.

Experience with Docker, Kubernetes, or containerized applications.

Experience with Azure or AWS.

Experience using AI-assisted development tools such as GitHub Copilot, Claude Code, GPT, Gemini, or Grok.

Passion for automation, continuous improvement, and modern software engineering practices.