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Added 18 days ago
Back-End Developer (.NET) - Quebec
InnovMetric Software Inc.
QC
Full-time
…analyze, and optimize their metrology processes. As a Back-End Developer, you will contribute to the development of our service-oriented back-end architecture, web interfaces, and secure…
Added 23 days ago
Senior .Net Full stack developer
Zortech Solutions
Vancouver, BC
Contract
We are seeking an experienced Senior .NET Developer with 10+ years of software development experience to design, develop, and maintain scalable, secure, and high-performing enterprise…
Added 23 days ago
Senior Full Stack Developer (.NET, React & Cloud Technologies)
Cognizant
Halifax, NS
Full-time
As a Senior Full Stack Developer, you will make an impact by designing, developing, and supporting scalable web applications and cloud-based solutions that drive business outcomes. You will…
Added 23 days ago
Full Stack .NET Developer (Angular & Cloud Technologies)
Cognizant
Halifax, NS
Full-time
As a Full Stack .NET Developer, you will make an impact by designing, developing, and supporting scalable enterprise applications using modern Microsoft technologies, Angular, and cloud…
Added 23 days ago
.Net Developer
J&M Group
Vancouver, BC
Full-time
We are looking for a Senior .NET Developer with 10+ years of experience to build and maintain secure, scalable enterprise applications.
Added 24 days ago
Full Stack .NET Developer
Iris Software Inc.
Toronto, ON
Full-time
…financial services corporation is looking to hire a Full Stack .NET Developer Our direct client is a is a world-leading financial services company, provides consumers, corporations,…
Added 24 days ago
Dotnet Developer
Kumaran Systems
Toronto, ON · Greater Toronto Area, Canada
Full-time
A hands-on senior developer role focused on building, integrating, and supporting enterprise applications on the Microsoft/Azure stack. You'll build the solution based on designs from…
Added 25 days ago
Développeur(euse) Logiciel / Software Developer - C#/.NET/Web
Genetec
Montreal, QC
Full-time
Solide expérience en développement avec C# et l'écosystème .NET
Added 25 days ago
Senior .NET Developer - Kafka
Tamanna Technology
Toronto, ON · Greater Toronto Area, Canada
Contract
We are seeking a highly skilled .NET C# developer with deep expertise in Kafka, modern .NET (Core/6/7+), and experience across frontend, cloud (Kubernetes), and DevOps. Experience with…
Added 25 days ago
Dotnet Developer
Kumaran Systems
Toronto, ON · Greater Toronto Area, Canada
Full-time
Seeking a highly skilled Senior .NET Full Stack Developer with 7–10 years of strong expertise in C#, .NET technologies, SQL Server, Angular, and Azure Cloud services. The ideal candidate…
Added 25 days ago
Dotnet Developer
Kumaran Systems
Toronto, ON
Full-time
Programming Skills: You are a strong hands-on developer proficient in one or more programming languages such as C#, Python, and JavaScript/TypeScript. You have experience with modern…
Added 26 days ago
Dotnet Developer
Millennium Software and Staffing Inc
Montreal, QC
Contract
We are looking for a DotNet Developer with strong hands-on experience with:
Added 26 days ago
Senior Dotnet Developer
Millennium Software and Staffing Inc
Montreal, QC
Full-time
Looking for experienced Full Stack .NET Developers with strong hands-on expertise in C#, .NET Core/ASP.NET Core, SQL Server, REST APIs, and Entity Framework, along with Angular/React and…
Added 1 month ago
Senior C#/.NET Developer
Cognizant
Toronto, ON
$61,650 to $102,500 CAD / year
Full-time
As a Senior .NET Developer, you will make an impact by developing and maintaining high-performing enterprise applications, APIs, and integration solutions that support critical business…
Added 24 days ago
Lead .Net Fullstack Developer
Citi
Mississauga, ON
Full-time
We are seeking a highly motivated and skilled Senior Full-Stack Developer to join our team. As a key contributor, you will be responsible for designing, developing, and maintaining robust…
Added 27 days ago
Senior Dotnet Developer
InfiCare Staffing
Montreal, QC
Contract
As a hands-on Senior Developer/Engineer in the EUCS squad, you will be deeply involved in design, implementation, and L3 support. You will collaborate with the Product Owner, SaaS vendors,…
Added 24 days ago
Full-Stack .Net Web Developer, Digital Platforms & Integrations
BDO
Toronto, ON
Full-time
The Full-Stack .Net Web Developer, Digital Platforms & Integrations helps BDO maintain, enhance, and scale bdo.ca and its broader digital platform ecosystem.
Added 29 days ago
Sr. .Net Developer
J&M Group
Toronto, ON
Contract
We are looking for a Senior .NET Developer with strong C#, .NET Core, REST/SOAP, OAuth, legacy application modernization, and cloud/Windows experience.
Added 24 days ago
Backend Developer (.NET)
Appnovation Technologies
Vancouver, BC
As a Senior Software Engineer - Backend, you will build the .NET services that carry the core business logic of a modern operational SaaS platform for K-12 education. The platform automates…
Added 1 month ago
.Net Fullstack Developer
Capgemini
Mississauga, ON
Full-time
The successful candidates will be responsible for developing and supporting solutions developed using .NET Core C#, JavaScript libraries Angular, Node.js and related technologies.…
Added 1 month ago
Senior .NET Developer
Citi
Mississauga, ON
Full-time
.Net Expertise: Strong experience and knowledge in .Net Core Web development, C# preferred
Added 1 month ago
.Net Developer
Capgemini
Toronto, ON
Design, develop, implement, and maintain technical solutions supporting legacy .NET applications on Windows 10/11 and Windows Servers, including desktop application components.
Added 2 months ago
Développeur(euse) logiciel / Software Developer - C#/.NET
Genetec
Montreal, QC
Full-time
…the protection of the everyday. We are looking for a Software Developer who is passionate of software development and who enjoys various types of tasks and challenges of all levels of…
Added 1 month ago
Mobile Developer (.NET MAUI)
BusPlanner
Remote, Canada
Full-time · Remote
We are looking for a Mobile Developer who will take full, end-to-end ownership of the BusPlanner mobile application portfolio. This is not a role where someone else builds the platform and…
Added 1 month ago
Senior Full Stack .NET Developer
Corpay
Vancouver, BC
Corpay is currently looking to hire a Senior Fullstack .NET Developer within our Buyatab division. This position falls under our Corpay Payables line of business and is located in…

Appnovation Technologies

Backend Developer (.NET)

Vancouver, BC, Canada

Experience: At least 5-7 years of professional backend development experience with C# and .NET in production environments
Posting language: English
Posted: Aug 26, 2026

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Original job description

About us

Appnovation is a global, full-service digital partner that combines Strategy, Experience & Design, Engineering and Managed Services. We build digital solutions that deliver real impact today and serve as foundations for future growth. Bold ambition. Practical action. Endless possibilities.

As a Senior Software Engineer - Backend, you will build the .NET services that carry the core business logic of a modern operational SaaS platform for K-12 education. The platform automates administrative processes for school divisions, so the backend work is workflow-heavy and integration-heavy: you will develop REST APIs consumed by a Next.js frontend, implement durable multi-step business processes as Temporal workflows, build worker services for asynchronous and scheduled processing, and write the integration services that publish and consume events across system boundaries.

You will work as part of a dedicated, cross-functional scrum team that operates as an embedded extension of the client's engineering organization. The team includes business analysis and QA capability and owns assigned product services end-to-end - from refinement through development, testing, documentation, and release readiness. You will work directly in the client's repositories, follow their established architecture and engineering standards, and deliver in small, reviewable increments.

The data layer spans a PostgreSQL transactional model and a ClickHouse analytics store, with authorization enforced through Keycloak and OpenFGA - a real requirement in a multi-tenant product where an administrator in one school division must never see another's data. The platform is moving from pilot deployments toward general availability, so this is a role for a senior engineer who cares about correctness in distributed systems - idempotency, retries, and what happens when the third call fails - and who is ready to own significant slices of the platform with minimal supervision.

Key Responsibilities:

Developing and maintaining .NET Core REST APIs, including versioning, validation, error semantics, and Swagger/OpenAPI documentation
Implementing Temporal workflows and activities for long-running, multi-step business processes with correct retry and compensation behaviour
Building worker services for background, scheduled, and queue-driven asynchronous processing
Writing integration services that publish and consume events over pub/sub, against clearly defined message contracts
Modelling and querying relational data in PostgreSQL using Entity Framework Core, including migrations and query performance tuning
Building and maintaining reporting and analytics data paths into ClickHouse
Enforcing authorization in application code against OpenFGA policies, and integrating with Keycloak for OAuth 2.0 / OpenID Connect authentication and SSO
Producing technical analysis and implementation plans for significant changes, and delivering work in small, reviewable merge requests
Writing unit, integration, and API tests, and contributing to the Playwright end-to-end suite where backend behaviour is under test
Participating in code review, responding to CodeRabbit findings, and keeping GitLab CI/CD pipelines green
Instrumenting services with logging, metrics, and tracing to support production diagnosis
Participating in refinement, planning, review, and retrospective as a member of a self-directed scrum team, and raising missing business decisions early
Taking ownership of feature areas end to end, from technical design through release and support
Maintaining technical implementation and API documentation as part of the definition of done, not after it
Resolving defects and supporting post-release stabilization of recently delivered functionality
Mentoring less experienced engineers through code review and pairing

What we are looking for

Must-Have:

At least 5-7 years of professional backend development experience with C# and .NET in production environments
Strong command of .NET Core, ASP.NET Core Web API, and Entity Framework Core
Demonstrated experience building RESTful APIs consumed by real frontend or third-party clients
Solid relational data modelling and SQL skills in PostgreSQL or an equivalent RDBMS, including query performance tuning
Practical experience with asynchronous processing - background workers, message queues, or scheduled jobs
Working understanding of async/await in .NET and the failure modes that come with it
Understanding of event-driven and pub/sub patterns, including at-least-once delivery and idempotent consumers
Experience integrating with an identity provider using OAuth 2.0 and OpenID Connect
Comfortable working inside an existing codebase and an established set of engineering standards, rather than setting your own
Disciplined approach to automated testing across unit, integration, and API layers
Understanding of what makes automated tests durable - avoiding hard-coded waits, brittle selectors, shared test state, and environment-specific assumptions
Comfortable working in a Git-based workflow with CI/CD and peer code review
Must be located in British Columbia, Canada

Technologies

Languages/Frameworks: C#, .NET Core, ASP.NET Core, Entity Framework Core
APIs: REST, OpenAPI/Swagger, API versioning
Workflow and Async: Temporal workflows, worker services, asynchronous processing, event-driven pub/sub, integration services
Databases: PostgreSQL, ClickHouse, EF Core migrations, query optimization
Identity and Authorization: Keycloak, OpenFGA, OAuth 2.0, OpenID Connect, role- and policy-based authorization
Testing: xUnit/NUnit, Moq, Testcontainers, unit, integration and API testing, Playwright end-to-end testing
Build/Deploy/Tooling: GitLab, GitLab CI/CD, CodeRabbit automated code review, Docker, Jira, Confluence

Nice-to-Have:

Hands-on Temporal experience, including workflow versioning and testing strategies
Exposure to ClickHouse or another columnar/OLAP store for reporting workloads
Familiarity with fine-grained authorization models (OpenFGA, Zanzibar-style ReBAC)
Working knowledge of TypeScript and React, enough to trace an issue across the stack
Experience with distributed tracing and structured observability (OpenTelemetry)
Familiarity with Domain-Driven Design and CQRS patterns
SaaS product delivery experience, particularly through a pilot-to-GA transition
Experience with Canadian public-sector or education data privacy requirements (PIPEDA, provincial FIPPA), including data residency considerations
Experience in a consulting or client-facing delivery environment

Who you are

You are a careful engineer who thinks about failure modes before writing the happy path, and who leaves code easier to change than you found it.
You ask questions early, communicate clearly when something is off track, and take testing seriously rather than treating it as a step after the work.
You treat a feature as incomplete until it is tested, documented, and supportable - finishing the code is the middle of the job, not the end.

What Appnovation Offers

Challenging and rewarding work with real impact
Direct Access to Cutting-Edge AI Platforms
Diverse and Inclusive Culture
Growth opportunities for personal and professional development
A collaborative and innovative work environment where your ideas are valued
Exposure to exciting projects and high-profile clients
Supportive work environment with access to company leaders
Hybrid working model

Thank you for your interest in a career with Appnovation Technologies! Please note that only those selected for an interview will be contacted.

At Appnovation, we recognize that diverse teams are the strongest teams. Diversity, Equity & Inclusion is not only something that we embrace - we celebrate it! We are proud to be an Equal Opportunity Employer and we encourage applicants from all backgrounds, lived experiences and industries to apply. Come join us at Appnovation, and learn more about how we stay true to our company values as we build better lives through better digital.

Accommodations are available upon request throughout the recruitment process.

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More about this job

Responsibilities

You will develop and maintain .NET services, REST APIs, and asynchronous worker processes for a SaaS platform in the K-12 education sector. You will also model relational data, implement authorization policies, and participate in a cross-functional scrum team to deliver high-quality, tested code.

Requirements

The role requires 5-7 years of professional backend development experience with C# and .NET in production environments. Candidates must have strong skills in relational data modeling, asynchronous patterns, and automated testing within a Git-based CI/CD workflow.

Skills

C#
.NET Core
ASP.NET Core
Entity Framework Core
REST APIs
PostgreSQL
ClickHouse
Temporal
OpenFGA
Keycloak
OAuth 2.0
OpenID Connect
GitLab CI/CD
Playwright
SQL
Asynchronous processing

Benefits

Challenging and rewarding work
Access to cutting-edge AI platforms
Diverse and inclusive culture
Growth opportunities
Collaborative environment
Hybrid working model

Visa sponsorship

Not detected in the job text

Keywords

C#
.NET Core
ASP.NET Core
Entity Framework Core
RESTful APIs
PostgreSQL
ClickHouse
Temporal
OpenFGA
Keycloak
OAuth 2.0
OpenID Connect
GitLab
CI/CD
Playwright
SQL
Asynchronous processing
Pub/Sub
SaaS
Scrum
Unit testing
Integration testing
Docker
Jira
Confluence
Domain-Driven Design
CQRS
OpenTelemetry
Backend development
Distributed systems

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