Senior Solution Architect to lead the technical modernization, validate upgrade options, define the target .NET architecture, and guide modernization of l
S.i. Systems
Calgary, AB-
Number of positions available : 1
- Salary To be discussed
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Contract job
- Published on February 19th, 2026
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Starting date : 1 position to fill as soon as possible
Description
Our client is looking for a Senior Solution Architect to lead the technical modernization, validate upgrade options, define the target .NET architecture, and guide modernization of legacy MVC components for a (ROVER) system upgrade.
Must-haves:
- Senior‑level experience as a Solution Architect on .NET modernization or upgrade projects.
- Proven experience upgrading systems from ASP.NET MVC 5 / .NET Framework 4.x to modern .NET (Core/6/7/8).
- Hands‑on experience planning and executing legacy refactoring, including identifying components that must be re‑written.
- Experience designing solutions involving complex data models, large datasets (1M+ records), and high‑volume batch processing.
- Deep knowledge of:
- ASP.NET MVC, ASP.NET Core, and API‑first architectures
- Entity Framework 6 and EF Core migration strategies
- Authentication & authorization modernization (Identity/OWIN modern Identity)
- On‑premise infrastructure, Windows Server, and SQL Server environments
- Logging, monitoring, DI frameworks, and performance optimization
- Experience with SSRS and reporting integrations within .NET applications.
- Ability to design architectures that enable future enhancements
AI may be used in evaluating candidates.
This posting is for an existing vacancy.
Requirements
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undetermined
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