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Added 2 mins ago
LM
DIRECTOR OF INFORMATION TECHNOLOGY
Lacroix Médecine Privée
Quebec, QC
- Full-time
…the Group aims to accelerate its national and international…
Added 2 mins ago
AC
Manager, External Financial Advisory
ACCA Careers
Calgary, AB
- Full-time
Mentorship and leadership: lead and mentor a team of financial analysts and senior financial analysts, assisting in their professional growth through coaching, performance evaluations, and…
Added 31 mins ago
CO
Senior Water Resources Engineer
City of Pickering
Canada
- Full-time
The incumbent is primarily responsible for the review and preparation of technical comments on development applications as it relates to water resources and stormwater management matters.…
Added 32 mins ago
MQ
Senior QA Analyst – IVR & Contact Centre Testing
Miipe Quality Solutions
Markham, ON
- $60,000 to $75,000 CAD / year
- Full-time
Support testing activities throughout the full software development lifecycle, from planning and design through production implementation.
Added 32 mins ago
TG
Senior Guideway Civil Coordinator
Trillium Guideway Partners
Toronto, ON
- $90,000 to $120,000 CAD / year
- Full-time
The Senior Guideway Civil Coordinator will assist in managing the civil engineering and construction activities related to roads and landscaping within the elevated guideway project. This…
Added 32 mins ago
OT
Sales Manager, Business Events/Gestionnaire, Événements d’affaires
Ottawa Tourism
Ottawa, ON
- Full-time
Provide feedback to the supervisor and to other senior members of the Ottawa Tourism team in the development of quarterly and annual sales goals
Added 32 mins ago
D
Delivery coordinator, Project management
Desjardins
Levis, QC · Montreal, QC · Complexe Desjardins Montréal
- Full-time
As a project delivery manager, you help direct material, time, IT and human resources on cross-sector projects to meet objectives on time and on budget. You analyze project feasibility and…
Added 47 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 1 hour ago
B
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 1 hour ago
T
Test Analyst
TalentHub.io
Canada
- Full-time
…to ensure the reliability, functionality, and performance of software applications. This role is responsible for designing and executing test cases, identifying defects, and collaborating…
Added 1 hour ago
R
Manager, AML Model Testing
RBC
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 1 hour 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 1 hour ago
WO
Manager, HIS Applications
William Osler Health System
Brampton, ON
- Full-time
…population, creating opportunities for increased hands-on skills development, cross-department training and promotional opportunities. Guided by our accomplished senior leadership team,…
Added 1 hour ago
H
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 1 hour ago
O&
Assistant Manager, Fine Dining - Auberge du Pommier
Oliver & Bonacini
Toronto, ON
- Full-time
…company! You’re a key team player reporting to the General Manager. You’re involved in many aspects the restaurant including maintaining and encouraging high performing teams, upholding our…
Added 1 hour ago
S
Manager, Real Estate
Subway
Toronto, ON
- Full-time
The Real Estate Manager will play a pivotal role in strategically growing and optimizing Subway's restaurant network, ensuring the financial strength of the restaurants through profitable…
Added 1 hour ago
D
Manager, Actuarial Insurance Solutions (AIS) - Property & Casualty
Deloitte
Toronto, ON
- Full-time
As a Manager, you will lead and deliver complex actuarial engagements for Canadian P&C insurers, reinsurers, captives, and public-sector entities. Your responsibilities will include:
Added 1 hour 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 1 hour ago
T
Software Engineer II
TD
Toronto, ON · Montreal, QC
- Full-time
The TD Insurance Digital Platform is looking for a Software Engineer to join the MyInsurance development team. As a Software Engineer, the candidate will be a key contributor to…
Added 1 hour ago
MD
State Prog Admin Coordinator- Information Technology Solutions Manager
Minnesota Direct Care and Treatment
Saint-Paul, NB · St.-Paul, NB
- Full-time
Working Title: Information Technology Solutions Manager
Added 1 hour 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 2 hours ago
P
Applied AI Engineer Intern
Plusgrade
Toronto, ON · CAN - Toronto
- Full-time
Working closely with a senior mentor, you will build and operate the production inference services that serve machine learning models across our partner ecosystem in real time. Your day to…
Added 2 hours ago
Senior Manager, Data Strategy and Operations
Scotiabank
Toronto, ON
The Canadian Banking Analytics, Personalization & Innovation team is seeking a delivery-focused data leader to serve as Senior Manager, Data Strategy and Operations. Reporting to the…
Added 2 hours ago
BC
Communication Assistant
Brant Community Healthcare System
Brantford, ON
- Full-time
Reporting to the Manager, Communications and Public Affairs, the Communications Assistant plays a key role in executing on a number of communications tactics for both sites of the Brant…
Added 2 hours ago
E
Laboratory Assistant - Eurofins ExperNorth, Inc.
Eurofins
Vaughan, ON
- Up to $43,000 CAD / year
- Full-time
…support of clinical studies, as well as in biopharma contract development and manufacturing. It also has a rapidly developing presence in highly specialised and molecular clinical…

DSI Recruiting

Senior Platform Software Engineer – Backend

Toronto, ON, Canada

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

Apply About employer

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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