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Added 3 mins 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 3 mins ago
AC
Senior Project Manager - Civil
Accenture Construct
Toronto, ON
- Full-time
…engineers, technologists and strategists who pair real-world delivery with AI. And you won't be handed a slice of it. We take on whole programs, from early strategy through construction and…
Added 3 mins ago
TT
Procurement and Supply Chain Intern – Summer 2027
TTM Technologies
Toronto, ON
- Full-time
…time-to-market, representing how TTM's time-critical, one-stop design, engineering and manufacturing services enable customers to reduce the time required to develop new products and bring…
Added 3 mins ago
RD
Technical Project Manager - Software Solutions
Randstad Digital
Toronto, ON · Greater Toronto Area, Canada
- Full-time
As a Project Manager, Digital Transformation - Software Solutions, you will bridge the gap between business stakeholders and technical engineering teams. You will drive the end-to-end…
Added 3 mins ago
RL
Recycling Auditor
Reverse Logistics Group (RLG)
Brampton, ON
- Full-time
This position reports to the Manager, CCS Recycling Operations but will be directly supervised by the Supervisor, Compositional Assessment, and Team Leads. The role involves working closely…
Added 3 mins ago
E
Manager, DevOps Engineering
EllisDon
Mississauga, ON
- Full-time
Build, coach and develop a high-performing engineering team with clear expectations for ownership, communication, and engineering excellence.
Added 3 mins ago
IP
Manager - Coating Technologies & Development
IMPACT Pump Solutions
Calgary, AB
- Full-time
…product and process development, and continuous improvement. The Manager – Coatings & Development works closely with Engineering, Quality, Sales, Supply Chain, Project Management, and…
Added 4 mins ago
Senior Purchaser
QinetiQ
Medicine Hat, AB
…supplier selection, negotiation, purchase order placement, delivery and issue resolution. Working with the QTS Supply Chain Manager and cross-functional stakeholders, the Senior Purchaser…
Added 19 mins ago
PT
Principal Technical Program Manager
PAR Technology
Remote, Canada
- $160,000 to $190,000 CAD / year
- Full-time
- Remote
In this role, you will partner with Engineering, Product, Architecture, and other business stakeholders to drive end-to-end program execution, manage interdependencies, and ensure the…
Added 33 mins ago
A
[T4] Technical Program Manager – Marketing Technology (MarTech)
AMISEQ
Toronto, ON
- $60 to $65 CAD / hour
- Contract
In this role, you will lead complex, cross-functional technical programs, partnering closely with Engineering, Product, and Business teams to drive strategic initiatives from planning…
Added 33 mins ago
W
Supply Chain Manager
Worley
AB · Edmonton, AB
- Full-time
…across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and…
Added 33 mins ago
MN
Construction Project Manager
Matchtech North America
Toronto, ON · Greater Toronto Area, Canada
- Contract
Matchtech are supporting a key client with the requisition of a Construction Project Manager. The Construction Project Manager will support the EPC Project Manager or Program Manager in…
Added 33 mins ago
EI
Value Stream Owner
Enercare Inc.
Markham, ON
- Full-time
…Owner is a strategic leader responsible for the end-to-end delivery and optimisation of a value stream, ensuring alignment with business objectives and customer needs. This role bridges…
Added 33 mins ago
EC
IT Delivery Manager
Experis Canada
Ottawa, ON
- Contract
10+ years of experience in enterprise technology delivery, solution architecture, software engineering, systems engineering, platform engineering, or complex technology transformation.
Added 33 mins ago
W
Supply Chain Manager
Worley
Calgary, AB
- Full-time
…across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and…
Added 33 mins ago
B&
Nuclear Buyer
Black & McDonald Limited
Pickering, ON
- Full-time
Negotiate purchase contracts for cost, delivery and other commercial/quality terms and conditions as required
Added 33 mins ago
CP
Project Manager Scrum Master
Consulting Planet
Calgary, AB · Greater Calgary Metropolitan Area
- Contract
Role Description The Project Manager Scrum Master is responsible for planning, coordinating, and delivering projects using agile methodologies while ensuring alignment with client goals and…
Added 33 mins ago
SE
Project Engineer Substation and FACTS
Siemens Energy
Oakville, ON
- Full-time
Lead a multidiscipline project team of engineers in the development of physical, protection, and civil engineering packages for substation EPC projects. Ensure the project engineering…
Added 33 mins ago
G
Project Manager 2 - Buildings
Graham
Calgary, AB
- Full-time
Graham is actively recruiting for a Project Manager supporting the Buildings Division. Reporting to the Operations Management, the Project Manager is responsible for providing overall…
Added 34 mins ago
HA
Intern Bachelors Elect Eng
Honeywell Aerospace
Ottawa, ON · Kanata, ON
- Full-time
…applications. You will apply your technical knowledge to support engineering projects and collaborate with cross-functional teams to ensure the delivery of high-quality…
Added 34 mins ago
HA
Intern Bachelors Mech Eng
Honeywell Aerospace
Ottawa, ON · Kanata, ON
- Full-time
…applications. You will apply your technical knowledge to support engineering projects and collaborate with cross-functional teams to ensure the delivery of high-quality…
Added 34 mins ago
W
Senior Project Manager, Municipal Engineering
WSP
Fort McMurray, AB
- Full-time
As a Senior Project Manager in our Municipal Engineering team, you will manage client relationships, oversee project delivery, support business development initiatives, and provide…
Added 48 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 48 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 48 mins ago
Customer Service and Logistics Manager
Amrize
Mississauga, ON
Join Amrize as a Customer Service and Logistics Manager and help construct what's next. If you're ready to put your skills to work on projects that matter - and build a career with a…

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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