Intermediate and Senior Full stack developers (.Net, React & Azure) - Application Modernization

We're seekingtwo Full Stack Developers to help rewrite a business-critical enterprise application from the ground up. you will help transform a 20-year-old legacy C# application into a modern cloud-based platform using .NET, React, TypeScript, and Azure .

1 year contract with solid possibility for extension and you must be willing to be in the office 5 days a week.

Working alongside a cooperative development team, you'll use up-to-date engineering practices—including AI-assisted software development with Claude—while contributing to the team's evolving Agile development approach.

The client is building a team with complementary strengths, so we're more interested in technical capability, curiosity, collaboration, and attitude than a specific number of years of experience.

Must have:
Experience building modern web applications using React and TypeScript
Experience developing applications in Microsoft Azure
Experience designing and developing REST APIs and backend services
Experience working with SQL databases

Nice to have:




Experience modernizing or rewriting legacy applications
Experience building cloud-native applications
Experience with Blazor
Experience with Domain-Driven Design (DDD) or CQRS
Azure cloud certification (Developer, Architect, or Cloud Engineering)

What you will be doing:
Help rewrite a 20-year-old enterprise application using modern development practices and technologies.
Design, develop, test, and support full stack applications using .NET, React, TypeScript, and Azure.
Build scalable APIs and cloud-native application components.
Collaborate with developers, architects, and business stakeholders to design technical solutions.
Participate in code reviews, iterative planning, and continuous improvement as the team evolves its Agile development practices.
Use Claude and other modern development tools to enhance productivity and software quality

Disclaimer: AI may be used in evaluating candidates. This posting is for an existing vacancy.
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📌 Intermediate And Senior Full Stack Developers Net, React & Azure Application Modernization Calgary (Canada)
🏢 S.i. Systems
📍 Canada