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Added 6 mins ago
SI
Senior Product Manager
Spruce InfoTech Inc.
Toronto, ON
- 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 6 mins ago
Senior Project Manager, Alternative Delivery
WSP
Winnipeg, MB
With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global minds unite to power local solutions.
Added 6 mins ago
VC
Demand & Content Marketing Lead | Responsable Marketing de la Demande et Contenu
Valsoft Corporation
Montreal, QC · Saint-Laurent, Quebec
- Full-time
An engineering, data, or other technical background
Added 6 mins ago
Forest Protection Specialist (Environmental Analyst 1(A)-(B)2)
The Government of Nova Scotia
Shubenacadie, NS
Reporting to the Manager of Risk Services, the Forest Protection Specialist is responsible for providing scientific and technical support to assess and manage wildfire hazards. This role…
Added 6 mins ago
T
Performance Engineering Lead
TD
Mississauga, ON · Toronto, ON
- Full-time
Provide technical leadership to improve the design and operation of systems in alignment to performance/reliability engineering best practices and overall Technology and Bank strategies,…
Added 6 mins ago
T
Software Engineer II (Systems Support)
TD
Toronto, ON
- Full-time
The Software Engineer II is responsible for providing leadership, technical expertise, and operational support within the Credit Platform team. They will ensures the reliability, stability,…
Added 6 mins ago
N
Senior DevOps Engineer
Nelnet
Mississauga, ON · CAN - MISSISSAUGA
- Full-time
Bachelor’s degree in computer science, Engineering or a related field and 6+ years of experience in software development, DevOps frameworks and methodology
Added 21 mins ago
U
Team Manager - Continuous Integration, Continuous Delivery and Developer Productivity
Ubisoft
Montreal, QC
- Full-time
As a team manager at Ubisoft Montréal, you will support a team that improves development workflows, continuous integration and continuous delivery, build systems, and the tools used to…
Added 22 mins ago
RB
Manager, AML Model Testing
Royal Bank of Canada
Toronto, ON
- Full-time
In support of RBC’s commitment to maintaining a robust enterprise AML Program, the AML Model Testing Manager will support the ongoing AML model development testing process to ensure the…
Added 22 mins ago
FC
Project Coordinator
FLINT Corp.
Sherwood Park, AB
- Full-time
Assist in the coordination of project activities, ensuring alignment with scope, schedule, and quality expectations. Support the Project Manager in day-to-day execution tasks.
Added 22 mins ago
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Team Leader, Advanced Technology Group
BRP
Sherbrooke, QC
- Full-time
We are looking for a Team Lead, Advanced Technology Group with a background in mechanical engineering to lead part of the Advanced Technology Group at CTA. As a BRP employee working within…
Added 36 mins ago
DC
Building Automation Support Technician, Senior
Delta Controls
Surrey, BC
- Full-time
Reporting to the Technical Services Manager, you will become part of a dynamic technical team that provides product support and services to Delta IBT’s worldwide network of customers as…
Added 36 mins ago
DC
Building Automation Support Technician, Junior
Delta Controls
Surrey, BC
- Full-time
Reporting to the Technical Services Manager, you will become part of a dynamic technical team that provides product support and services to Delta IBT’s worldwide network of customers as…
Added 36 mins ago
VT
AI Engineer - Agentic AI, Commercial Banking
Vision Talent Co.
Toronto, ON
- Contract
Strong Python engineering (FastAPI, Pydantic, pytest, async, APIs)
Added 36 mins ago
TT
Senior Analyst, Performance Reporting (13928)
Toronto Transit Commission (TTC)
Toronto, ON · Greater Toronto Area, Canada
- $115,570 to $144,526.2 CAD / year
- Full-time
Reporting to the Senior Manager, Governance and Assurance, the Senior Analyst is responsible for developing and maintaining business performance reporting for the Commercial Management team…
Added 36 mins ago
E
Ingénérie/Engineering - Ingénieur électrique N3/Electrical Engineer L3
eTeam
Montreal, QC
- $63 to $80 USD / hour
- Other
Reporting to the senior manager engineering, the electrical engineer will be responsible for
Added 37 mins ago
E
Project Manager
EllisDon
ON · Ontario Projects
- Full-time
Provide technical engineering guidance to ensure compliance with codes, standards, and design requirements
Added 37 mins ago
E
Assistant Project Manager
EllisDon
AB · Alberta Projects
- Full-time
Submit project reports to Senior Project Manager and communicate with management about project progress and areas of risk that need to be escalated
Added 51 mins ago
F
Project Environmental Manager
FlatironDragados
Campbell River, BC
- Full-time
Are you passionate about environmental stewardship ? As the Project Environmental Manager, you will develop, implement and monitor project site environmental conditions to comply with…
Added 51 mins ago
IL
Advanced Quality Engineer
Invesco Ltd.
Charlottetown, PE
- Full-time
The Advanced Software Quality Assurance (SQA) Analyst is responsible for designing, developing, and executing complex test strategies to ensure high‑quality software releases. This role…
Added 51 mins ago
RL
Software Programmer ( 6 months contract)
Romet Limited
ON · Mississauga, ON
- Full-time
Reporting directly to the ME and Facilities Manager, the Software Programmer will support and troubleshoot issues with the programming of production equipment. Will work with Mechanical and…
Added 51 mins ago
Technical Records Controller
Air North
Whitehorse, YT
…tracked accurately within the computerized Maintenance Tracking…
Added 1 hour ago
UO
Scientific Assistant
University of Victoria
Victoria, BC
- Full-time
…and by coordinating with other technical staff, such as the Manager of Laboratories (ML), Senior Scientific Assistants (SSAs), and Scientific Assistants (SAs), as needed for the day-to-day…
Added 1 hour ago
VP
System Integration Project Manager
Vista Projects
Calgary, AB
- Full-time
The System Integration Project Manager leads the delivery of SI projects at the intersection of engineering data, application development and emerging AI tooling. This role coordinates the…
Added 1 hour ago
AC
Senior Project Manager - Civil
Accenture Construct
Toronto, ON
- Full-time

DSI Recruiting

Senior Platform Software Engineer – Backend

Toronto, ON, Canada

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

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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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