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Added 6 mins ago
L
Forward Deployed Engineer
Leyton
Calgary, AB
- €30,000 to €50,000 EUR / year
- Full-time
As a Forward Deployed Engineer, you will work directly with business teams across different countries to identify opportunities, design solutions, build prototypes, and deliver AI-powered…
Added 20 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 35 mins ago
SA
Manufacturing and Production Engineer
Skymark Aerospace
Mississauga, ON
- Full-time
We are seeking a Manufacturing and Production Engineer to develop the processes, tooling, and documentation needed to build UAV hardware consistently. You will work with design engineers,…
Added 50 mins ago
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Manufacturing Engineer
Hexagon
Calgary, AB
- Full-time
Hexagon’s Autonomous Solutions Division is looking for a Manufacturing Engineer to join a global leader in engineering and technology, committed to developing innovative solutions that…
Added 50 mins ago
H
Senior Prototype Engineer
Humanoid
Burnaby, BC
- Full-time
We are looking for a Senior Prototype Engineer to drive the development, assembly, integration, and validation of advanced humanoid robotic systems, with a particular focus on robotic…
Added 1 hour ago
KG
Project / Quality Engineer
Kinetic Growth Solutions Inc
Canada
- Full-time
Role Description The Project / Quality Engineer is a full-time, remote role responsible for ensuring that project deliverables meet defined quality standards while supporting efficient…
Added 1 hour ago
HS
Senior Java Software Engineer
Henry Schein One Canada
Surrey, BC
- Full-time
This is a hands-on individual contributor role for an experienced engineer who enjoys solving complex problems, collaborating across disciplines, and supporting the growth of other…
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
Senior Application Engineer
Eclipse Automation
Cambridge, ON
Job Title: Account Manager - Applications Engineer
Added 1 hour ago
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Sr. AI/ML Engineer, RAIB
McKesson
Mississauga, ON
- Full-time
…scalable, and responsible AI solutions. We are seeking a Sr. AI/ML Engineer, RAIB to lead the development, evaluation, governance, and operationalization of machine learning and Generative…
Added 1 hour ago
CI
Principal Architect
Camis Inc
Guelph, ON
- Full-time
…platform, partnering closely with the CTO, Engineering Leadership, Product, and development teams to ensure our software remains scalable, secure, maintainable, and ready for future…
Added 1 hour ago
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Senior Quality Assurance Automation Engineer
GryphTech
Mississauga, ON
- Full-time
We are looking for a QA Engineer to join our quality assurance team and help us validate high-quality, reliable web applications.
Added 1 hour ago
FG
Tool Design Engineer
Freudenberg Group
Tillsonburg, ON
- Full-time
Uses Design Software to create multidimensional prints to support product design and development
Added 1 hour ago
IF
Data Engineer
Innovation Federal Credit Union
Canada
- Full-time
The Data Engineer plays a key role in integrating data buy building data pipelines and supporting data architecture on Azure for cross functional teams. The Data Engineer will support our…
Added 1 hour ago
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Senior Software Engineer, Core Product (Hybrid)
Homebase
Remote, Canada
- $130,000 to $200,000 CAD / year
- Full-time
- Remote
As a Senior Software Engineer on the Core Product team, you’ll build the products small business owners rely on every single day: Scheduling, HR Management (HRM), and Payroll. This is where…
Added 1 hour ago
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Senior Software Engineer, AI Developer Experience
Vanta
Remote, Canada
- Full-time
- Remote
…software engineering, developer experience, AI systems, and product thinking to turn emerging capabilities into reliable workflows used in real engineering…
Added 1 hour ago
UM
Mechanical Engineer
Ultra Maritime
Dartmouth, NS
- Full-time
The Mechanical Engineer will play a role in a multi-disciplinary project team developing new and innovative solutions in the Anti-Submarine Warfare (ASW) domain.
Added 1 hour ago
UM
Mechanical Engineer
Ultra Maritime
Dartmouth, NS
- Full-time
The Mechanical Engineer will play a role in a multi-disciplinary project team developing new and innovative solutions for the Royal Canadian Navy and its partners in the Anti-Submarine…
Added 2 hours ago
FT
Senior Electrical Engineer
Foreseeson Technology
Richmond, BC
- Contract
…battery control, efficient energy flow, modularity, and future product…
Added 2 hours ago
GV
Lead Engineer 2 - Electronics Systems Testing
GE Vernova
Markham, ON
- Full-time
GE Vernova is seeking an experienced Lead Engineer 2 to drive high-level electronics systems testing and product development in a dynamic, cross-functional environment. Operating with…
Added 2 hours ago
HT
PD Software for Service
Husky Technologies
Bolton, ON
- Full-time
…resolving systemic service issues. The team is responsible for all product lines (Machines, Molds, 3rd Party Hot runners, Controllers, and Auxiliaries) and works cohesively with a variety…
Added 2 hours ago
HT
PD Service - Mechanical
Husky Technologies
Bolton, ON
- Full-time
…resolving systemic service issues. The team is responsible for all product lines (Machines, Molds, 3rd Party Hot runners, Controllers, and Auxiliaries) and works cohesively with a variety…
Added 2 hours ago
HT
Applications Engineer
Husky Technologies
Bolton, ON
- Full-time
Analyze global rigid packaging, beverage, and consumer goods trends to shape application strategies, product roadmaps, and innovation priorities.
Added 2 hours ago
O
Data Engineer | Data & AI Technology
Obsidi®
Toronto, ON
- Full-time
The Data Engineer plays a critical role within the Enterprise Data & AI Technology organization. This organization drives data enabled decision making, AI innovation, and technology…
Added 2 hours ago
VP
Applications Engineer - Project Management
Vishay Precision Group, Inc. (VPG)
Toronto, ON
- Full-time
We are seeking an Application Engineer with strong project management capability to support our Optical Products Group.

Flexkube Lab Inc.

Senior Software Engineer - .NET, C# & APIs

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

Contract

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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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