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Added 12 mins ago
M
Support Team Lead
Minga
Kelowna, BC
- Full-time
…most in the August–September back-to-school peak, when your manager is also supporting new customer…
Added 12 mins ago
Renewable Power Senior Engineer
Hatch
Mississauga, ON
Looking to take the next step in your career? Hatch is seeking a Senior Engineer, Renewable Power interested in the integration of Utility Scale Solar PV, wind, and BESS, to work as part of…
Added 28 mins ago
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ISO 20022 Product Manager
BMO
Toronto, ON · YNG
- Full-time
The ISO 20022 Product Manager defines and delivers the strategy, roadmap, and lifecycle management for ISO 20022-enabled payment products and capabilities. The role translates client,…
Added 28 mins ago
E
Manager, PUDO Pricing & Monetization
eBay
Toronto, ON
- Full-time
Ability to communicate complex analytical findings clearly to senior non-technical audiences without hiding uncertainty or overstating the evidence
Added 28 mins ago
EI
Senior Architect (Major Aviation Infrastructure)
Egis in Canada
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
…Construction (IFC). Working under the direction of a Project Manager and Technical Lead, the Senior Architect will be responsible for coordinating architectural deliverables, leading…
Added 28 mins ago
T
Test Analyst
TalentHub.io
Canada
- Full-time
Career progression into Senior Test Analyst, QA Engineer, Automation Engineer, QA Lead, or QA Manager roles.
Added 29 mins ago
Senior Procurement Specialist
ASSA ABLOY
ON · Woodbridge, ON
Fleming and Baron (an ASSA ABLOY company) is adding a Senior Procurement Specialist to join our team. This position will be performed on-site Monday through Friday at our manufacturing…
Added 43 mins ago
DC
Senior Civil Engineer/Civil Project Manager
Dillon Consulting Limited
Brandon, MB · Winnipeg, MB
- Full-time
We are currently seeking a Civil Engineer/Civil Project Manager to join our Linear Municipal Infrastructure team. Our team specializes in the critical networks that keep a community moving…
Added 43 mins ago
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Manager, AML Model Testing
RBC
Toronto, ON
- Full-time
Collaborate closely with Senior Manager and other stakeholders to align AML testing strategies with business needs.
Added 43 mins ago
T&
Senior Risk Manager
Turner & Townsend
Ottawa, ON
- Full-time
An experienced Senior Risk Manager with a minimum of 10 years of post-graduate experience, including at least 5 years dedicated to program and project risk management on large, complex…
Added 43 mins ago
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Senior Product Manager (12 month contract)
HighlightTA
Remote, Canada
- $110,800 to $138,500 CAD / year
- Full-time
- Remote
The Senior Product Manager (12-month contract) role is responsible for developing and executing product strategies and roadmaps aligned with business goals and market trends. The role…
Added 43 mins ago
EG
Project Manager - Highways
Egis Group
Toronto, ON
- $130,000 to $180,000 CAD / year
- Full-time
Project Manager - Highways is a senior-level civil engineering role based in Toronto, Ontario, Canada, responsible for leading multidisciplinary highway and transportation infrastructure…
Added 44 mins ago
GT
Transformation Release Management Consultant
Global Technical Talent, an Inc. 5000 Company
Toronto, ON
- $75 to $80 CAD / hour
- Contract
…support a major core banking modernization program. This is a senior-level consulting role focused on coordinating and governing complex software releases across front-end and back-end…
Added 44 mins ago
T
Product Manager
TEEMA
Toronto, ON
- Full-time
The Senior Product Manager, Enterprise AI will provide end-to-end product leadership for priority AI initiatives, from opportunity identification and intake through prioritization,…
Added 58 mins ago
T
Software Engineer II
TD
Toronto, ON · Montreal, QC
- Full-time
Typically reports to an Engineering Manager or above
Added 58 mins ago
RT
Senior AI Product Manager
Russell Tobin
Toronto, ON
- $80 to $90 CAD / hour
- Contract
The Senior Product Manager, Enterprise AI will provide end-to-end product leadership for priority AI initiatives, from opportunity identification and intake through prioritization,…
Added 59 mins ago
AP
Operations Manager | Calgary
Aspen Properties
Calgary, AB
- Full-time
We are pleased to announce we have an immediate opening for a team and service-oriented individual to fill an Operations Manager role based in Calgary.
Added 59 mins ago
C
Director, Product Management, Global Asset Management
CIBC
Toronto, ON
- Full-time
…support better decision-making across complex portfolios. As a Senior Product Manager, you'll lead the product development, management, and delivery of our in-house Enterprise Risk…
Added 59 mins ago
SG
Field Service Engineer
SIG Group
Mississauga, ON
- Full-time
Travel to other locations as required by manager, including Mexico and Canada.
Added 59 mins ago
LM
Hardware Engineer Senior
Lockheed Martin
Dartmouth, NS
- Full-time
…Lockheed Martin Canada Inc. (Lockheed Martin). As part of the Engineering team, you will be directly involved in translating customer requirements into best-in-class product solutions.…
Added 1 hour ago
SP
Program Manager, Major Projects.
Spark Power
AB · Edmonton, AB
- Full-time
Spark Power, a trusted partner in power in North America, is looking for a Program Manager, Major Projects. Program Manager, Major Projects. is accountable for the successful end-to-end…
Added 1 hour ago
A
Senior Project Manager
ATCO
Calgary, AB
- Full-time
The Senior Project Manager reports to the Manager, Projects and is accountable for leading the delivery of complex and strategically significant capital projects across the project…
Added 1 hour ago
Supply Chain Analyst - Data & Analytics
Freedom Mobile
North Vancouver, BC
Reporting to the Senior Manager, Wireless Network Supply Chain Operations, the Supply Chain Analyst - Data & Analytics contributes to improving operational performance by developing…
Added 1 hour ago
P
Applied AI Test Engineer - Intern
Plusgrade
Toronto, ON · CAN - Toronto
- Full-time
Working under the direction of a Senior SDET on the Applied AI Engineering team, you will build and maintain automated test suites that safeguard production machine learning pipelines and…
Added 1 hour ago
P
Data Science Intern
Plusgrade
Toronto, ON · CAN - Toronto
- Full-time
Working alongside data scientists, ML engineers, and data engineers under the guidance of the Senior Manager of Data Science, you will build and ship the developer tools and observability…

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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