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Asp Net Developer Startup Jobs in Toronto, ON (NOW HIRING)

United Airlines

.NET Developer

Toronto, ON

NET 6/7/8 and ASP.NET Core Build and maintain RESTful APIs and gRPC services following ... DevOps / Jenkins / GitHub Actions) Monitor and troubleshoot production systems using tools like ...

United Airlines

.NET Developer

Toronto, ON · On-site

... asp.net core, SQL Server DB, API and OCP, C# dotnet, asp.net MVC Knowledge of software engineering practices for the full software development life cycle, including coding standards, code reviews ...

KEV Group

Senior Full Stack Engineer

Toronto, ON · On-site

We are hiring a Senior Developer to help design, evolve, and scale the core systems that power KEV ... C# and ASP.NET. Ensure frontend and backend systems are aligned, performant, and built for ...

Royal Bank of Canada

Software Engineer

Toronto, ON · On-site

You will be a full stack developer on a team focused on web applications that support internal and ... NET-based applications * Angular Web applications * Cloud-native and microservices-based solutions

Derivative Path

Senior .NET Engineer

Toronto, ON · Remote

CA$110K - CA$150K/yr

About You * Enjoy collaborating in a fast-paced startup environment where ideas are openly ... Strong C# and ASP.NET skills, with a solid full-stack foundation across MVC patterns, ORM ...

Clio

Customer Success Manager

Toronto, ON

... net positive retention. * Maintain high levels of customer engagement and satisfaction, with a ... Partner with Sales leaders (Account Executives, Sales Engineering) to assist in closing new ...

Loop

Head of Risk

Toronto, ON · On-site

$120 - $140/hr

Loop is a fast‑growing FinTech high‑growth startup that enables businesses to seamlessly manage ... Own recovery rate and net loss as core KPIs of the function. Risk Operations & Reporting

All JobsAsp Net Developer Startup JobsAsp Net Developer Startup Jobs in Toronto, ON

Asp Net Developer Startup information

What is the difference between Asp Net Developer Startup vs Asp Net Developer Mid-Level?

AspectAsp Net Developer StartupAsp Net Developer Mid-Level
Experience1-3 years3-5 years
Work EnvironmentFast-paced, dynamic startupsEstablished companies, structured teams
ResponsibilitiesBroader scope, multitaskingSpecialized, focused tasks
CertificationsOptional, based on skillsPreferred certifications like Microsoft Certified

In summary, Asp Net Developer Startup roles typically require less experience, involve a fast-paced environment, and offer broader responsibilities. Mid-Level Asp Net Developers usually have more experience, work in structured settings, and focus on specialized tasks, often with relevant certifications.

What are popular job titles related to Asp Net Developer Startup jobs in Toronto, ON?

For Asp Net Developer Startup jobs in Toronto, ON, the most frequently searched job titles are:

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The top searched job categories for Asp Net Developer Startup jobs in Toronto, ON are:

Asp Net Developer Startup jobs near you
Infographic showing various Asp Net Developer Startup job openings in Toronto, ON as of August 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 100% In-person job distribution.

Enterprise Senior Software Developer

Armstrong Fluid Technology

Toronto, ON

Full-time

Re-posted 7 days ago

Job description

Armstrong Fluid Technology is a global leader in innovative fluid flow solutions. We are committed to engineering excellence and delivering high-quality products and services that drive efficiency and sustainability for our customers.
We are seeking a highly skilled Enterprise Developer to join our enterprise architecture team. This role is ideal for a developer with extensive experience in Python, C#, and .NET projects including legacy frameworks such as ASP.NET. The successful candidate will be proficient in creating new microservices, as well as refactoring, upgrading, and migrating applications to modern platforms and architectures, with a focus on legacy enterprise systems. Expertise in SQL databases, cloud development (especially AWS), containerization, and application security is essential.


THIS IS A SENIOR HANDS ON DEVELOPER ROLE


Key Responsibilities


  • Design, develop, maintain, troubleshoot, and enhance Python and C# applications.
    Refactor and upgrade legacy ASP.NET applications.
  • Migrate monolithic applications to new platforms and microservices architectures to enhance scalability and maintainability.
  • Perform lift-and-shift operations to cloud environments.
  • Implement containerization using Docker and Kubernetes (EKS).
  • Develop and deploy cloud solutions, particularly on AWS.
  • Ensure application security and compliance with best practices.
  • Optimize SQL database performance by analyzing and improving query efficiency, indexing strategies, and overall database design.
  • Collaborate with cross-functional teams to deliver high-quality software solutions.


Qualifications


  • Bachelor's degree in Computer Science, Information Technology, or a related field.
  • Experience in developing integration modules and services for enterprise systems such as ERP, PLM, CPQ, and CRM.
  • Proven experience as a backend developer with a strong understanding of C# and .NET frameworks, as well as Python.
  • Proficient in designing and developing RESTful APIs.
  • Experience with microservices architecture and related technologies.
  • Experience with ASP.NET and legacy frameworks.
  • Proficient in refactoring and upgrading legacy application code.
  • Experience with cloud development, particularly AWS.
  • Familiar with containerization technologies (Docker) and Kubernetes (EKS).
  • Solid understanding of modern application security and best practices.
  • Excellent problem-solving skills and attention to detail.
  • Strong communication, teamwork, and adaptability.
  • Demonstrated experience in SQL database performance tuning and optimization techniques.


Preferred Qualifications

  • Experience with other cloud platforms (Azure, Google Cloud).
  • Knowledge of DevOps practices and tools.
  • Familiarity with PowerBI is a plus.
  • Work on impactful projects modernizing enterprise systems.
  • Collaborate with talented, cross-functional teams.
  • Contribute to a company committed to innovation and sustainability.
  • Enjoy opportunities for professional growth and development.

Apply