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Added 6 mins ago
BB
Engineer, Cloud Operations
Bed Bath & Beyond
Brampton, ON
- Full-time
Sleep Country Canada is looking for a Junior Cloud Engineer to play a critical role in supporting day-to-day operations of the organization’s cloud infrastructure, helping ensure systems…
Added 6 mins ago
H
Senior Geotechnical Engineer
Hays
ON · Ontario, Canada
- Full-time
…strengthening their internal engineering capability, they are seeking a Senior Geotechnical Engineer to join their Tailings Management team in Sudbury, Ontario. This team is responsible for…
Added 6 mins ago
KI
Senior Project Manager
KAPP Infrastructure Inc.
Vaughan, ON
- $120,000 to $160,000 CAD / year
- Full-time
We are seeking a qualified and motivated individual to join our Vaughan-based team as a Senior Project Manager. This is an opportunity to join a company with over 40 years of construction…
Added 21 mins ago
M
Staff Software Engineer, AI
Maple
Toronto, ON
- Full-time
This is a hands-on, senior individual contributor role for an engineer who has spent the last few years actively building AI into real products - not just experimenting with models or…
Added 21 mins ago
W
Senior Electrical Engineer
WSP
Thornhill, ON
- Full-time
Join our Buildings M&E team as a Senior Electrical Engineer and help shape electrical solutions for diverse projects across Canada. Based in Thornhill/Markham (GTA), you’ll bring…
Added 21 mins ago
Senior Crypto Engineer
Scotiabank
Toronto, ON
As a Senior Crypto Engineer, you will be a core member of the Engineering pillar, responsible for responsible for the design, building, and patterning of security solutions into…
Added 35 mins ago
EV
Senior Engineer, Geotechnical
Elk Valley Resources
Sparwood, BC
- Full-time
Reporting to the Manager, Geological Engineering, the Senior Engineer, Geotechnical is responsible for:
Added 1 hour ago
K
Senior Project Manager - NET
Kinectrics
Toronto, ON
- Contract
Diversity: The company is dedicated to promoting diversity in its workforce, up to and including the senior management level. Our diversity committee ensures we stay up to date on leading…
Added 1 hour ago
FL
Senior Software Engineer - .NET, C# & APIs
Flexkube Lab Inc.
Toronto, ON · Greater Toronto Area, Canada
- Contract
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,…
Added 1 hour ago
FT
Power Electronics Engineer
Foreseeson Technology
Richmond, BC
- Contract
Collaborate with the Senior Electrical Engineer and Embedded Systems Engineer to define converter interfaces, control signals, telemetry, and fault-handling requirements.
Added 1 hour ago
C
Sr. Database Automation Engineer
CIBC
Toronto, ON
- Full-time
…secure platforms that support critical enterprise services. As a senior-level database automation professional, you’ll provide operational support for automation platforms such as Ansible…
Added 1 hour ago
KG
Manager, TMF and Earthworks Area
Kinross Gold Corporation
Red Lake, ON
- Full-time
Review designs, drawings, work packages, changes, and technical queries; coordinate constructability, geotechnical, quality, regulatory, and Engineer of Record matters.
Added 1 hour ago
CI
Principal Architect
Camis Inc
Guelph, ON
- Full-time
This is a highly influential senior technical leadership role. You will lead and evolve the architectural vision across our platform, partnering closely with the CTO, Engineering…
Added 1 hour ago
T
Senior Azure DevOps Engineer | CI/CD | Infrastructure as Code | Cloud Operations
ThoughtStorm
Toronto, ON
- Contract
We are seeking a Senior Azure DevOps Engineer to support enterprise cloud platforms and digital service delivery initiatives.
Added 1 hour ago
M
RQ11740 - DevOPS/Cloud Engineer - Senior
Maarut
Toronto, ON
- Contract
and operational teams, the Senior DevOps Engineer improves deployment
Added 1 hour ago
V
Senior Software Engineer, AI Developer Experience
Vanta
Remote, Canada
- Full-time
- Remote
As a Senior Software Engineer on the AI DX team, you’ll help shape these systems from the ground up. You’ll work directly with engineers to understand friction in their workflows, build…
Added 2 hours ago
I
DevOPS/Cloud Engineer
isgSearch
Toronto, ON · Greater Toronto Area, Canada
- Contract
Seeking a Senior DevOps Engineer with 7+ years of experience designing and supporting cloud-based enterprise applications, CI/CD pipelines, infrastructure automation, and production…
Added 2 hours ago
IO
Mine Plant Machinery Engineer - Experienced - Kearl
Imperial Oil
Edmonton, AB
- Full-time
As a senior technical specialist, the Mine Plant Machinery Engineer will play a critical role in optimizing equipment performance, reliability, maintainability, and operational efficiency.…
Added 2 hours ago
IO
Senior Geotechnical Engineer - Kearl
Imperial Oil
Edmonton, AB
- Full-time
As an Senior Geotechnical Engineer supporting Kearl’s Dam Safety program, you will be responsible for preparing scopes and overseeing geotechnical investigations, design, construction, and…
Added 2 hours ago
FT
Senior Electrical Engineer
Foreseeson Technology
Richmond, BC
- Contract
Foreseeson is seeking a Senior Electrical Engineer to lead electrical architecture, hardware design, system integration, and engineering validation throughout the development of this…
Added 2 hours ago
I
Avionics System Engineer
InfoStride
Toronto, ON
- Full-time
Key Skills: Aircraft Cybersecurity, Aviation Systems Security, Cybersecurity Risk Assessment, Penetration Testing, Vulnerability Analysis, Aircraft Systems Integration, DO-326B, DO-356A,…
Added 2 hours ago
IS
Senior Engineer, Structures
Irving Shipbuilding
Dartmouth, NS
- Full-time
Join a team building the future fleet of Canada. As a valued member of the Hull Engineering group, the Senior Structures Engineer will play a key role in the design, construction,…
Added 3 hours ago
MS
Jr. Software Engineer - Java, Angular, JavaScript
Motorola Solutions
ON · Gatineau, QC · Quebec, QC
- Full-time
Contributes to the analysis, development, and design of software for the organization’s products and systems under senior guidance.
Added 3 hours ago
Mine Plant Machinery Engineer - Experienced - Kearl
ExxonMobil
Edmonton, AB
As a senior technical specialist, the Mine Plant Machinery Engineer will play a critical role in optimizing equipment performance, reliability, maintainability, and operational efficiency.…
Added 3 hours ago
Senior Geotechnical Engineer - Kearl
ExxonMobil
Edmonton, AB
As an Senior Geotechnical Engineer supporting Kearl’s Dam Safety program, you will be responsible for preparing scopes and overseeing geotechnical investigations, design, construction, and…

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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