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Added 6 mins ago
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Senior Manager, Cloud & AI Security
ATB
Calgary, AB · Edmonton, AB
- Full-time
As ATB’s next Senior Manager, Cloud & AI Security, you’ll lead a team responsible for securing ATB’s cloud platforms and enabling the safe adoption of AI. You’ll set the security roadmap,…
Added 6 mins ago
M
Technicien principal de l'environnement critique (CET)/Critical Environment Technician
Microsoft
Quebec, QC
- Full-time
As a Senior Critical Environment Technician (CET) - Québec City in Microsoft’s Cloud Operations & Innovation (CO+I) team, you will help to maintain the critical infrastructure that keeps…
Added 6 mins ago
M
Senior Software Engineer
Microsoft
Vancouver, BC
- Full-time
As a Senior Software Engineer, you will be a hands-on technical leader working across the PowerPoint for the web stack. You will design and deliver end-to-end AI-powered features, from…
Added 20 mins ago
BC
Technical Lead - Web/Mobile
BrainRidge Consulting
Toronto, ON
- Full-time
…clearly explain technical trade-offs and recommendations to senior client stakeholders and non-technical…
Added 35 mins ago
Senior Software Development Engineer, AWS Transactional Services
Amazon
Vancouver, BC
We are seeking a Senior Software Development Engineer to own and a build major part for our control plane. Your work will be critical to the scalability and availability of the service.…
Added 1 hour ago
T
Manager, Software Delivery Developer - Gen AI and AI-Accelerated Modernization
Toast
Montreal, QC
- $103,000 to $150,000 USD / year
- Full-time
Coach and mentor senior consultants and consultants on engineering practices, technical problem solving, and client delivery
Added 1 hour ago
T
Senior Manager - Senior Tech Lead – AI & Technology Transformation
Toast
Montreal, QC
- $103,000 to $190,000 USD / year
- Full-time
Hands-on skills in Python, REST APIs, system integration, cloud architecture, CI/CD, automated testing, observability, RAG, vector databases, prompt engineering and model evaluation
Added 1 hour ago
T
Senior Manager - Senior AI Architect
Toast
Montreal, QC
- $103,000 to $190,000 USD / year
- Full-time
Toast is recruiting on behalf of one of the world’s largest professional services firms for a Senior Manager, Senior AI Architect based in Montreal. With more than 10,000 people across…
Added 1 hour ago
T
Director, Google Gemini Enterprise, Data & AI
Toast
Toronto, ON
- $147,000 to $192,000 USD / year
- Full-time
Provide technical oversight across data, AI/ML, and cloud engineering teams to keep delivery cohesive
Added 1 hour ago
T
Enterprise Architect, AI Engineering – Security & Compliance
Toast
Toronto, ON
- $130,000 to $180,000 USD / year
- Full-time
…organization with more than 10,000 people across the country. Their AI Engineering team turns emerging AI capabilities into secure, scalable, production-ready applications and platforms…
Added 1 hour ago
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Principal Software Development Engineer
Workday
Vancouver, BC · Canada, BC, Vancouver
- Full-time
Agent Factory is where Workday’s next chapter gets built. We’re forming small, senior, cross-functional AI teams that bring together product leaders, machine learning engineers, and…
Added 1 hour ago
RB
Senior Director, DevOps Product Management and Strategy
Royal Bank of Canada
Toronto, ON
- Full-time
The Senior Director of DevOps Product Management and Strategy is a transformation-focused strategic leadership role that will shape RBC's future as a technology-led financial services…
Added 1 hour ago
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Senior Data Reliability Developer
nesto
Canada
- Full-time
Our Data team is the backbone of Nesto Cloud, managing the flow of data that powers Canada’s most advanced mortgage platform. As a Senior Data Reliability Developer, you won't just be…
Added 1 hour ago
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Director of AI Delivery
nesto
Toronto, ON
- Full-time
…combine over 50 years of mortgage expertise with proprietary cloud and AI technology to transform the future of…
Added 1 hour ago
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Director of AI Delivery
nesto
Montreal, QC
- Full-time
…combine over 50 years of mortgage expertise with proprietary cloud and AI technology to transform the future of…
Added 1 hour ago
T
Senior Solutions Engineer / Architect
Thri5
Toronto, ON
- $150,000 to $200,000 CAD / year
- Full-time
Comfort in front of senior stakeholders and hands-on with APIs, data, and cloud architecture
Added 2 hours ago
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Solutions Designer, Splunk Montreal, Quebec, Canada
Cisco
Montreal, QC
- Full-time
Splunk is seeking a highly skilled and strategic Senior Solutions Engineer to join our Eastern Canada team. Splunk, a Cisco company, is building a safer and more resilient digital world…
Added 2 hours ago
R
Senior Director, DevOps Product Management and Strategy
RBC
Toronto, ON
- Full-time
The Senior Director of DevOps Product Management and Strategy is a transformation-focused strategic leadership role that will shape RBC's future as a technology-led financial services…
Added 2 hours ago
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Principal Software Engineer, Docker Hardened Images
Docker
Remote, Canada
- Full-time
- Remote
Shape the integration test infrastructure and developer tooling strategy so that DHI's engineering platform scales with the catalogue and raises quality across the team.
Added 2 hours ago
S
Sales Account Executive - SAP Academy for Customer Success - Canada (Hybrid)
SAP
Vancouver, BC
- Full-time
…unique business goals, and desired outcomes, thereby driving cloud revenue growth through leading dedicated sales efforts to help customers solve their business challenges by positioning…
Added 3 hours ago
AI
Forward Deployed Engineer (Python/Pyspark Developer)
Apptoza Inc.
Toronto, ON
- Full-time
We are looking for a senior Forward Deployed Engineer who combines production-grade software engineering, data engineering, AI application development, and client-facing consulting. You…
Added 3 hours ago
TG
Senior Manager, AI and Data
TMX Group
Toronto, ON
- $165,000 to $175,000 CAD / year
- Full-time
Build, coach, and retain a high-performing, diverse team spanning data engineering, and AI engineering; manage hiring, performance, and career development.
Added 3 hours ago
Forward Deployed AI Engineer Sr - Analytics
Dayforce
Canada
Our award-winning Cloud HCM platform offers a unified solution database and continuous calculation engine, driving efficiency, productivity and compliance for the global workforce.
Added 3 hours ago
PV
Senior Director - Customer Analytics, Data & AI
Pet Valu
Markham, ON
- Full-time
Position: Senior Director, Customer Analytics, Data & AI
Added 3 hours ago
NR
Sr. Microsoft Dynamics Nav BC Developer
Northern Reflections
Toronto, ON
- Full-time
Reporting to the VP, Information Technology, the Senior NAV Solutions Developer is responsible for the design, development, enhancement, and ongoing support of the organization's Microsoft…

Flexkube Lab Inc.

Senior Software Engineer - .NET, C# & APIs

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Contract

Apply About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Nov 25, 2026
Experience: 8+ years of professional software engineering experience, with strong hands-on development expertise in C# and .NET.
Posting language: English
Posted: Oct 26, 2026

Original job description

In this role, you will design, develop, modernize, and maintain enterprise applications and APIs that support business-critical solutions for our clients.

We are looking for an experienced, hands-on engineer who brings strong backend development capabilities, an understanding of modern frontend frameworks, and experience delivering secure, scalable, and reliable software.

You will collaborate with cross-functional engineering teams, contribute to technical design decisions, and leverage modern development practices, including AI-assisted engineering tools, to improve software quality and delivery efficiency.

Why This Role Is Open

We are currently hiring for this role due to an existing or newly created vacancy within our organization. This position is open as part of our ongoing business needs, and we are actively reviewing applications to fill this role with a qualified candidate who can make an immediate impact.

What You’ll Do

Design, develop, and maintain scalable backend services and enterprise applications using C#, .NET, ASP.NET Core, and SQL Server.
Build, enhance, and integrate secure RESTful APIs, including authentication, authorization, data validation, and error handling.
Contribute to the modernization of existing applications, including refactoring legacy code, improving performance, and enhancing system reliability.
Work across the application stack, collaborating on frontend development using React, Angular, or similar JavaScript/TypeScript frameworks.
Apply secure coding principles and API security practices, including OAuth2, JWT, and common application security standards.
Participate in technical design discussions, code reviews, automated testing, troubleshooting, and performance optimization.
Support CI/CD pipelines, containerized deployments, and development workflows using tools such as Docker.
Collaborate with engineers, product teams, and quality specialists to deliver high-quality solutions in Agile environments.
Leverage AI-assisted development tools responsibly to support coding, testing, debugging, and documentation while maintaining security and engineering standards.
Share technical knowledge and contribute to continuous improvements in development practices and software quality.

What We’re Looking For

8+ years of professional software engineering experience, with strong hands-on development expertise in C# and .NET.
Solid experience building and maintaining applications using ASP.NET Core, Web API, and RESTful services.
Strong understanding of backend architecture, API design, system integrations, and object-oriented programming principles.
Experience working with SQL Server or comparable relational databases, including data access technologies such as Entity Framework Core or Dapper.
Experience with modern frontend development using React, Angular, or similar JavaScript/TypeScript frameworks.
Understanding of application security principles, including authentication, authorization, OAuth2, JWT, and secure coding practices.
Experience working with Git, code reviews, automated testing, CI/CD pipelines, and Agile software delivery.
Strong problem-solving and troubleshooting skills, with the ability to investigate and resolve complex technical issues.
Ability to collaborate effectively with cross-functional teams and communicate technical concepts clearly.

Bonus Points For

Experience modernizing legacy .NET applications or migrating enterprise systems to modern architectures.
Exposure to Azure or AWS cloud environments, Docker, Kubernetes, or cloud deployment troubleshooting.
Experience with performance optimization, application monitoring, and production support.
Familiarity with accessibility standards such as WCAG or AODA.
Experience with Snowflake, data warehouses, or enterprise data integrations.
Experience with Tailwind CSS, shadcn/ui, or other modern frontend component libraries.
Experience using AI-assisted software development tools such as GitHub Copilot, ChatGPT, or other AI-powered coding and testing solutions.
Experience mentoring developers, contributing to technical documentation, or improving engineering standards.

Apply About employer

More about this job

Responsibilities

Design, develop, modernize, and maintain enterprise applications and secure, scalable APIs using C#, .NET, ASP.NET Core, and SQL Server. Collaborate across engineering and product teams on frontend work, security, testing, CI/CD, troubleshooting, performance improvements, and responsible use of AI-assisted development tools.

Requirements

Requires 8+ years of software engineering experience and strong hands-on expertise in C# and .NET, including ASP.NET Core, Web API, RESTful services, backend architecture, and relational databases. Candidates should also have frontend framework experience, knowledge of application security, and experience with Git, code reviews, automated testing, CI/CD, and Agile delivery.

Skills

C#
.NET
ASP.NET Core
RESTful APIs
SQL Server
Entity Framework Core
Dapper
React
Angular
OAuth2
JWT
Docker
CI/CD
Automated Testing
Agile
Application Security

Visa sponsorship

Not detected in the job text

Keywords

C#
.NET
ASP.NET Core
Web API
RESTful APIs
SQL Server
Entity Framework Core
Dapper
React
Angular
JavaScript
TypeScript
OAuth2
JWT
Git
Code Reviews
Automated Testing
CI/CD
Docker
Kubernetes
Azure
AWS
Agile
Legacy Application Modernization
Performance Optimization
Application Monitoring
Snowflake
WCAG
Tailwind CSS
GitHub Copilot

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