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Added 9 mins ago
A
Health & Safety Advisor
Agropur
Boisbriand, QC
- Full-time
Reporting to the Regional Health & Safety Manager, the Health & Safety Advisor will have the following responsibilities. This role offers the opportunity to join an organization undergoing…
Added 9 mins ago
VP
System Integration Project Manager
Vista Projects Limited
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 9 mins ago
Sr. Manager, Cyber Security
UFA Co-operative Ltd.
Calgary, AB
Reporting to the Director, Cyber Security & Infrastructure, the Senior Manager, Cyber Security leads UFA's Cyber Security team and is accountable for the day-to-day delivery and continuous…
Added 23 mins ago
PA
IT Technician (Head office - Muskoka
Performance Auto Group
Huntsville, ON
- Full-time
The successful candidate will be providing technical assistance and support in an effective and efficient manner. Must be self-starting, a team player with the ability to establish good…
Added 23 mins ago
IW
Human Resources Co-op Student - Summer 2027
Irving Woodlands
Sussex, NB
- Full-time
…invisible, temporary, or permanent) can be made at any stage of application and employment. We encourage candidates to make their accommodation needs known so that we can provide equitable…
Added 23 mins ago
AA
Senior Procurement Specialist
ASSA ABLOY Opening Solutions Americas
Woodbridge, ON
- Full-time
Support organizational transformation and continuous improvement efforts
Added 23 mins ago
SI
Account Manager
Supra ITS
Mississauga, ON
- $70,000 to $77,000 USD / year
- Full-time
There is an immediate need for a Account Manager located in the Greater Toronto Area, Ontario (Mississauga head office; field-based across the GTA and Southern Ontario) at SupraITS. If you…
Added 23 mins ago
CM
Account Manager
Cyclic Materials
Toronto, ON
- Full-time
…across Arizona and neighboring states, we are seeking an Account Manager to support customer and supplier growth from our Toronto…
Added 23 mins ago
ST
Associate - Launch Program
SS&C Technologies
Mississauga, ON
- Full-time
SS&C is a leading provider of mission-critical, AI-powered technology and services empowering financial services and healthcare organizations to work smarter, faster, and securely. Founded…
Added 38 mins ago
CO
Manager, Digital Solutions
City of Saint John
Saint John, NB
- Full-time
The position provides oversight for application lifecycle management (on-premises and SaaS) including major systems administration (e.g. ERP, Asset Management, ePermitting), application, AI…
Added 38 mins ago
CC
Retail Store Manager in Training
Canna Cabana
Martensville, SK
- Full-time
The Retail Store Manager in Training is responsible for the daily operations and profitability of the establishment according to set goals and business objectives. Daily operations include…
Added 38 mins ago
CC
Retail Shift Leader
Canna Cabana
Saskatoon, SK · Circle Drive, Saskatoon, SK
- Part-time
Oversee the responsibilities of the Store Manager in the absence of SM or ASM
Added 38 mins ago
GD
Business Development Manager, Tactical Comms
General Dynamics Missions System International
Ottawa, ON
- Full-time
At General Dynamics Mission Systems–Canada, our focus extends beyond engineering technology solutions - we are dedicated to cultivating careers. If you seek a purpose-driven career solving…
Added 53 mins ago
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Clinical Research Manager
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
…governmental guidelines and regulations, the Clinical Trial Project Manager is responsible for the operational management of multicentre clinical research studies. The Project Manager…
Added 53 mins ago
CO
Manager, Library Services
City of Winnipeg
Winnipeg, MB
- Full-time
Under the general direction of the Director of Community Services, the Manager of Library Services is responsible for the strategic planning, development, implementation, administration and…
Added 53 mins ago
ST
Associate - Launch Program
SS&C Technologies
Mississauga, ON
- Full-time
SS&C is a leading provider of mission-critical, AI-powered technology and services empowering financial services and healthcare organizations to work smarter, faster, and securely. Founded…
Added 53 mins ago
MQ
Senior QA Analyst – IVR & Contact Centre Testing
Miipe Quality Solutions
Markham, ON
- $60,000 to $75,000 CAD / year
- Full-time
…Quality Engineering through innovation, collaboration, and technology. We specialize in end-to-end testing, Hyper-Automation solutions, and cutting-edge practices like Systems Perspective…
Added 53 mins ago
R
Recycling Auditor
Reconomy
Brampton, ON
- $22.5 CAD / hour
- Full-time
The Reverse Logistics Group (RLG) is an innovative technology service provider for global players in the materials management sector. Through our scalable platform solutions, we overcome…
Added 53 mins ago
D
Practice Manager - Kennedy East Dental
dentalcorp
Hamilton, ON · Kennedy East Dental
- Full-time
…patients of all ages. With a focus on patient comfort, modern technology, and compassionate care, our team takes pride in helping every patient achieve and maintain a healthy smile. We…
Added 1 hour ago
M
Support Team Lead
Minga
Kelowna, BC
- Full-time
Track and report support metrics to the Sr. Manager, Support & Implementation
Added 1 hour ago
C
Sr. Manager, Vendor Governance & Contract Management
CIBC
Toronto, ON
- Full-time
The Senior Manager, Vendor Governance and Contract Management will oversee both pre-contract and post-contract activities across CIBC’s Technology vendor portfolio. In the pre-contract…
Added 1 hour ago
B
Managing Director & Head, Credit and Portfolio Management
BMO
Toronto, ON · FCP
- Full-time
Own the PM data and reporting technology roadmap to establish a common fact base.
Added 1 hour ago
B
Data Scientist
BMO
Toronto, ON · BMOPLACE
- Full-time
…impact from day one – for yourself and our customers. We’ll support you with the tools and resources you need to reach new milestones, as you help our customers reach theirs. From in-depth…
Added 1 hour ago
Custom Engineering Specialist
Ametek, Inc.
Calgary, AB
Support technical sales in preparing quotes by providing cost estimates and technical evaluations needed to secure customer orders
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,…

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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