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Senior Software Developer Jobs in Aurora, ON (NOW HIRING)

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Senior Software Developer (Full Stack)

Mississauga, ON · On-site

CA$120K/yr

We are seeking an experienced Senior Software Developer (Full Stack) with 7+ years of commercial software engineering experience. In this key on-site role in Mississauga, you will lead the ...

ATS Automation

Software Developer

Woodbridge, ON

Work is performed under the supervision, guidance, and direction of more senior software developers and is commensurate with level of ability Compensation & Benefits * Pay Rate: $36.54 - $50.24

Det Norske Veritas

Sr. Software Engineer

Toronto, ON · On-site

The Senior Software Engineer is responsible for designing, developing, testing, deploying, and ... and developer productivity. Architecture, Platforms & Interoperability * Develop APIs, backend ...

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Senior Software Developer information

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

What is the difference between Senior Software Developer vs Software Engineer?

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

More about Senior Software Developer jobs

What are the most commonly searched types of Software Developer jobs in Aurora, ON?

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For Senior Software Developer jobs in Aurora, ON, the most frequently searched job titles are:

What cities near Aurora, ON are hiring for Senior Software Developer jobs?

Cities near Aurora, ON with the most Senior Software Developer job openings:

Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in Aurora, ON as of August 2026, with employment types broken down into 88% Full Time, 8% Part Time, and 4% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution.

Enterprise Senior Software Developer

Armstrong Fluid Technology

Toronto, ON • On-site

Other

Re-posted 19 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.