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Senior Software Development Engineer In Test Jobs in Ontario

Software Development Engineer in Test (SDET) Our client is looking for a meticulous SDET to contribute to and review the creation of designs for production software. The SDET's responsibilities ...

Software Development Engineer in Test (SDET) Our client is looking for a meticulous SDET to contribute to and review the creation of designs for production software. The SDET's responsibilities ...

Your role As a Sr. SDET in Agentic QA, you will own the test automation and quality frameworks that support Dialpad's AI Voice Agent services. You will develop automated tests for end-to-end product ...

Your role As a Sr. SDET in Agentic QA, you will own the test automation and quality frameworks that support Dialpad's AI Voice Agent services. You will develop automated tests for end-to-end product ...

\n \n \n \n \n Role Overview SDET Engineers will, in collaboration with a multidisciplinary delivery team, be responsible for the increasing automation coverage and improving our existing automation ...

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Senior Software Development Engineer In Test information

What are the key skills and qualifications needed to thrive as a Senior Software Development Engineer In Test, and why are they important?

To thrive as a Senior Software Development Engineer In Test, you need advanced programming skills, deep knowledge of software testing methodologies, and a bachelor's degree in computer science or a related field. Expertise with automation frameworks (such as Selenium, Cypress, or Appium), CI/CD tools, and scripting languages is typically required, along with relevant certifications like ISTQB. Strong analytical thinking, problem-solving, and effective communication are crucial soft skills for collaborating with cross-functional teams and driving quality initiatives. These capabilities ensure rigorous test coverage, faster release cycles, and high-quality software products.

How does a Senior Software Development Engineer In Test typically collaborate with development and product teams to ensure software quality?

As a Senior Software Development Engineer In Test (SDET), you will work closely with both development and product teams throughout the software development lifecycle. This includes participating in design and requirements discussions to identify potential test cases early, contributing to test automation strategies, and providing feedback on testability and quality risks. SDETs often pair with developers to review code, co-create test plans, and triage bugs together, ensuring that testing is fully integrated into the CI/CD pipeline. Effective communication and cross-team collaboration are essential for proactively identifying issues and maintaining high software quality standards.

What does a Senior Software Development Engineer in Test (SDET) do?

A Senior Software Development Engineer in Test (SDET) is responsible for designing, developing, and maintaining automated test frameworks and tools to ensure the quality and reliability of software products. They work closely with development and QA teams to identify test requirements, create robust test cases, and integrate automated tests into the CI/CD pipeline. In addition to coding and scripting, Senior SDETs mentor junior team members, analyze test results, and help troubleshoot complex issues to continuously improve software quality. Their expertise bridges the gap between development and testing, ensuring both speed and quality in software releases.

What is the difference between Senior Software Development Engineer In Test vs Software Development Engineer In Test?

AspectSenior Software Development Engineer In TestSoftware Development Engineer In Test
ExperienceTypically 5+ years in testing and developmentEntry to mid-level, 1-3 years experience
ResponsibilitiesDesigns complex test frameworks, mentors juniors, leads testing initiativesDevelops test cases, automates tests, executes testing tasks
Skills & CertificationsAdvanced coding, automation, testing tools, leadership skillsProgramming, automation, testing tools
Work EnvironmentCollaborates with cross-functional teams, often in Agile settingsWorks closely with developers, focuses on automation and manual testing

In summary, a Senior Software Development Engineer In Test has more experience, leadership responsibilities, and strategic testing roles compared to a Software Development Engineer In Test, who primarily focuses on developing and executing tests.

What are the most commonly searched types of Software Development Engineer In Test jobs in Ontario? The most popular types of Software Development Engineer In Test jobs in Ontario are:
What are popular job titles related to Senior Software Development Engineer In Test jobs in Ontario? For Senior Software Development Engineer In Test jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Senior Software Development Engineer In Test jobs in Ontario look for? The top searched job categories for Senior Software Development Engineer In Test jobs in Ontario are:
What cities in Ontario are hiring for Senior Software Development Engineer In Test jobs? Cities in Ontario with the most Senior Software Development Engineer In Test job openings:
Infographic showing various Senior Software Development Engineer In Test job openings in Ontario as of May 2026, with employment types broken down into 93% Full Time, 6% Part Time, and 1% Contract. Highlights an 85% Physical, 10% Hybrid, and 5% Remote job distribution.

Sr. Software Development Engineer in Test (Python)

Align Technology, Inc.

Toronto, ON

Full-time

Posted 29 days ago


Job description

This full-time, on-site position is ideal for experienced Senior Software Development professionals with experience in automated testing. We are looking for a Senior Software Developer in Test (Sr. SDET) to join the Predictability Core team which is responsible for implementing new clinical features designed to improve the efficacy and predictability for our Invisalign product. You will work in close collaboration with colleagues from larger R&D group, Biomechanical team, Clinical experts and product managers, focusing on algorithmic and mathematical solutions for orthodontic problems spread across different geographies. As a Sr. SDET, you will design and extend automatic test systems for complex problem domains in a regulated medical environment using Python
  • Interact closely with clinical experts, project managers, product owners, and software developers, to analyze specifications and deliver detailed requirements.
  • Find advanced solutions for verifying open-ended clinical requirements.
  • Develop functional, regression, performance, and integration testing solutions using test automation tools
  • Perform exploratory testing to quickly uncover problems and to guide the development of more formal test scripts.
  • Write and review automatic tests, and support software developers in writing tests early in the development process.
  • Troubleshoot and triage manually reported problems and feedback.
  • Contribute to documentation, architecture, and project planning and sizing.
  • Participate in release preparation: software verification, maintenance of test coverage, troubleshooting and production support.
  • Set up, maintain, and improve reliable test environments and CI/CD pipelines.
  • Set up, configure, maintain, and improve existing automation frameworks. Research new test tools, test methodologies, and trends, to upgrade existing practices and processes and to create new frameworks.
  • Collaborate with other teams to improve automation, QA methodologies, and best practices throughout the company.
  • Excellent knowledge and practical experience with Python
  • Experience in testing complex 3D Software
  • Bachelor's degree in computer science, Mathematics or related field, or equivalent experience in software development
  • Deep understanding and 8+ years of practical experience with tools, methodologies, and frameworks for automatic software testing
  • Experience in Agile SDLC
  • Working knowledge of GIT
  • Experience in writing and maintenance of technical documentation
  • Highly motivated, creative, self-starter, with excellent organizational, communication and interpersonal skills and a "can do" attitude. Thrives in a high-paced, multi-task environment
Complementary skills
  • Experience in working with PyTest and Open3D Python library
  • Experience with Build Management, Software Configuration Management, Change Management, and Release Management activities
  • Experience working in highly regulated industries (such as Banking, Financial, Healthcare, Medical Devices, Aerospace, etc.)
  • Experience working with Atlassian stack Bamboo, Zephyr, Bitbucket, JIRA, Confluence etc
  • Experience working with Splunk which our primary monitoring tool
  • Mathematical background, and knowledge of optimization methods, linear algebra, analytical geometry, and/or 3D graphics on a university level
If provided, base salary or wage rate ranges are the range in which Align reasonably expects to set a candidate's pay for the posted position. Actual placement depends on the individual skills and experience level of a candidate plus the total compensation and equity across team members. For other locations outside of the primary location, the base salary range will be adjusted geographically. 
 
For Field Sales roles, the salary listed is the base pay only and does not include the applicable incentive compensation plan. 
 
Our internship hourly rates are a standard pay determined based on the position and your location, year in school, degree, and experience.

This posting is for an existing vacancy within our organization. Canadian work experience is not required for this position.  We welcome applicants from all backgrounds.  

We use automated tools (including artificial intelligence "AI") in our hiring process. This may include AI-based screening or assessment of applications. All final hiring decisions will be made by humans.