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Senior.Net Software Engineer to remediate security vulnerabilities using.NET Core, REST APIs, and microservices - 1646

Company

S.i. Systems

Location

Calgary, Alberta

Posted

July 06, 2026

Position Overview

Our financial services client is seeking a Senior .Net Software Engineer (5+ years) to remediate security vulnerabilities using .NET Core, REST APIs, and microservices

Duration: Until Dec 31,

Location: Remote (High preference for candidates in Montreal and Ontario so that they can go into office for collaboration)

Join a backend and API-focused initiative supporting security remediation across legacy and modern .NET applications within an insurance environment. This role focuses on analyzing vulnerability reports, fixing security issues in APIs and backend services, and contributing to .NET REST API and microservices development using Docker and Kubernetes. The environment includes REST services built from Open API/Swagger specifications, event-driven services with Kafka, and deployments across Kubernetes environments.

Must Haves:

  • 5+ years in .NET, .NET Core, and full application development life cycle environments
  • REST...
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