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Added 11 mins ago
Retail Experience Lead
Fire & Flower Inc.
Weyburn, SK
All Retail Experience Leads are expected to be stewards of compliance and education leading by example, providing education, and reinforcing company standards. The Lead is also responsible…
Added 11 mins ago
Retail Experience Lead
Fire & Flower Inc.
Estevan, SK
All Retail Experience Leads are expected to be stewards of compliance and education leading by example, providing education, and reinforcing company standards. The Lead is also responsible…
Added 11 mins ago
Interim Retail Experience Lead
Fire & Flower Inc.
Spruce Grove, AB
All Retail Experience Leads are expected to be stewards of compliance and education leading by example, providing education, and reinforcing company standards. The Retail Experience Lead is…
Added 11 mins ago
A
Underwriting Manager, Middle Market Package
AXA
Toronto, ON
- Full-time
As Underwriting Manager you will lead the Middle Market underwriting team focusing on property and casualty package for mid-sized businesses across Canada. Working with brokers and clients…
Added 11 mins ago
HR
Executive Assistant
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- Full-time
The Executive Assistant to DVP, General Manager, Calgary defines the luxury lifestyle shopping experience through building lasting relationships with our people, customers and partners by…
Added 12 mins ago
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Maintenance Manager
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- Full-time
Are you passionate about maintaining safe, welcoming environments for seniors? Chartwell is seeking a Maintenance Manager who will be responsible for the overall maintenance and upkeep of…
Added 12 mins ago
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(CAN) Asset Protection Associate
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- Part-time
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(CAN) Front End Checkout Team Associate
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Store Associate
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- Part-time
Pay attention to store security, by monitoring activity within the store.
Added 12 mins ago
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Toronto, ON
- Full-time
Compliance Architect, Project Architect, Project Compliance Architect, PDC Architect, Architectural Compliance, Project Compliance, Technical Architect, Architectural Project Manager,…
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Toronto, ON
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Conduct pay equity analyses and ongoing maintenance activities to ensure compliance with pay transparency and legislative requirements across our Canadian locations, including Toronto,…
Added 12 mins ago
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Toronto, ON
- Full-time
a. Implementing security best practices and maintaining compliance with industry standards.
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Toronto, ON
- Full-time
As an Audit Manager, you will execute and support technology-focused audits across enterprise platforms, applications, infrastructure, and systems. You will assess IT risks, evaluate…
Added 27 mins ago
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- Full-time
Ensure compliance with Good Manufacturing Practices (GMP), company policies, regulatory requirements, and applicable standards.
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Added 27 mins ago
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Building Operator
ISS
Ottawa, ON
- $35 to $40 CAD / hour
…ensure all building systems operate safely and within regulatory…
Added 27 mins ago
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DSI Recruiting

Senior Platform Software Engineer – Backend

Toronto, ON, Canada

$130,000 to $160,000 CAD / year · Full-time

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Applications open in a new tab.

Job details

Pay: $130,000 to $160,000 CAD / year
Job type: Full-time
Apply by: Dec 4, 2026
Experience:  Typically 5+ years of professional backend engineering experience, or equivalent demonstrated capability.
Posting language: English
Posted: Nov 4, 2026

Original job description

Our client is seeking a hands-on Senior Platform Software Engineer (Backend) to implement shared cloud-native services and reusable .NET SDKs for a next-generation enterprise application platform. The role focuses on security, API standards, session management, resilient integrations and developer enablement across independently delivered domain services.

Platform engineering

 Build shared services, middleware, templates and reusable NuGet SDKs using C#, modern .NET and ASP.NET Core.

 Implement authentication integration, BFF session management, token lifecycle controls and tenant-aware, resource-level authorization patterns.

 Establish API standards for validation, versioning, structured errors, idempotency, configuration and service-toservice integration.

 Develop reusable patterns for PostgreSQL access, Redis caching/session storage, observability and resilient messaging as appropriate.

 Contribute to AWS-based deployments, including API Gateway, ECS/Fargate, Aurora/RDS PostgreSQL, ElastiCache, SQS and EventBridge where relevant.

 Publish packages through Azure DevOps Artifacts and support domain teams in adoption without unnecessary coupling.

AI-assisted development and quality

 Use Claude Code or comparable AI coding assistants for design exploration, implementation, refactoring, testing and documentation.

 Apply structured, specification-driven AI-assisted delivery approaches, including AWS AI-DLC 2.0; turn requirements into reviewable plans and acceptance criteria.

 Review and verify AI-generated code for security, correctness, maintainability and compliance with platform standards.

 Contribute to Azure DevOps CI/CD pipelines, automated tests, peer reviews and engineering quality gates.

Required qualifications

 Typically 5+ years of professional backend engineering experience, or equivalent demonstrated capability.

 Strong C#, modern .NET, ASP.NET Core and secure REST API development experience.

 Solid knowledge of OAuth 2.0, OIDC, application security, authentication and authorization.

 Experience with SQL/relational databases, transactions, asynchronous programming and failure-resistant service design.

 Experience with AWS or comparable cloud platforms, automated testing, Git and CI/CD.

 Ability to contribute to architecture and implement production-grade components independently.

Preferred qualifications

 AWS ECS/Fargate, API Gateway, Aurora PostgreSQL, ElastiCache, SQS, EventBridge, Secrets Manager and CloudWatch.

 BFF patterns, enterprise federation (Entra ID/PingFederate), Redis, multitenant authorization and OpenTelemetry.

 Transactional outbox/inbox, event versioning, duplicate-message handling, Flyway, Terraform and Azure DevOps Artifacts.

 Demonstrable hands-on use of Claude Code, GitHub Copilot or similar AI tools; familiarity with AWS AI-DLC 2.0.

Expected deliverables

 Production-ready shared backend components and versioned .NET SDKs.

 Reference services, secure authentication/session and authorization integration patterns.

 Automated tests, pipeline integration, operational instrumentation and adoption documentation.

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More about this job

Responsibilities

Build and maintain shared cloud-native backend services, middleware, reference patterns, and reusable, versioned .NET SDKs for independently delivered domain services. Establish secure API, authentication, session-management, authorization, integration, and operational standards, while supporting AWS deployments, automated quality processes, and adoption by domain teams.

Requirements

Candidates typically have at least five years of backend engineering experience, strong C#, modern .NET, and ASP.NET Core skills, and experience building secure REST APIs. They should understand OAuth 2.0 and OIDC, relational databases, asynchronous and resilient service design, cloud platforms, automated testing, Git, and CI/CD, and be able to independently deliver production-grade components.

Skills

C#
Modern .NET
ASP.NET Core
Secure REST APIs
OAuth 2.0
OpenID Connect
Authentication and Authorization
AWS
PostgreSQL
Redis
Asynchronous Programming
Automated Testing
CI/CD
Azure DevOps
Claude Code

Visa sponsorship

Not detected in the job text

Keywords

C#
.NET
ASP.NET Core
NuGet
Cloud-Native Services
OAuth 2.0
OpenID Connect
Backend for Frontend (BFF)
Session Management
Multi-Tenant Authorization
REST APIs
PostgreSQL
Redis
AWS
API Gateway
ECS/Fargate
Aurora/RDS
ElastiCache
SQS
EventBridge
Azure DevOps
CI/CD
Claude Code
AWS AI-DLC 2.0
OpenTelemetry
Transactional Outbox/Inbox
Flyway
Terraform
Automated Testing
Resilient Messaging

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