Senior Software Architect with experience designing and implementing web-based applications in a Microsoft environment

S.i. Systems · Montreal, Quebec, Canada

Location

Montreal

Job Type

Contract

Posted

March 23, 2026

Job Description

Our client is looking for a Senior Software/Application Architect with experience designing and implementing web-based applications in a Microsoft environment
Must Have:
8+ years in .NET development
4+ years architecture
Strong experience with YARP or similar reverse proxy architectures
Proven delivery of large system integrations
API-first design experience (REST, JSON, versioning)
Authentication integration (SSO, OAuth2/OIDC)
Strong debugging and system-analysis skills
Nice to Have:
Hands-on architecture for government or enterprise systems (preferred)

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