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Senior Software Development Engineer Jobs in Ontario

Dialpad

Sr. SDET

Kitchener, ON

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 ...

Dialpad

Sr. SDET

Kitchener, ON

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 ...

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Senior Software Development Engineer information

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

To thrive as a Senior Software Development Engineer, you need deep expertise in software engineering principles, advanced programming skills in languages such as Java, Python, or C++, and a bachelor's or higher degree in computer science or a related field. Familiarity with version control systems like Git, cloud platforms such as AWS or Azure, and experience with CI/CD pipelines are typically required, and certifications in these technologies can be advantageous. Strong problem-solving, leadership, and communication skills help you mentor junior engineers and collaborate effectively across teams. These competencies are critical for delivering robust solutions, driving technical innovation, and ensuring project success in complex engineering environments.

What are some common challenges Senior Software Development Engineers face when leading cross-functional projects?

Senior Software Development Engineers often encounter challenges such as aligning priorities across diverse teams, managing technical debt while delivering new features, and ensuring effective communication among stakeholders. Balancing hands-on coding with mentorship responsibilities and architectural decision-making can also be demanding. Success in this role typically requires strong interpersonal skills, proactive problem-solving, and the ability to adapt to shifting project requirements while maintaining high code quality.

What engineers make $300,000 a year?

Senior Software Development Engineers in high-demand industries or companies, especially those with expertise in areas like machine learning, cloud computing, or cybersecurity, can earn $300,000 or more annually. Compensation often includes base salary, bonuses, and stock options, particularly in large tech firms or startups with significant funding.

Can I make 200k a year as a software engineer?

Senior Software Development Engineers in many regions can earn $200,000 or more annually, especially with experience, specialized skills, and working at large tech companies or in high-cost-of-living areas. Compensation often includes base salary, bonuses, and stock options, and reaching this level typically requires advanced technical expertise and a strong track record.

What are Senior Software Development Engineers?

Senior Software Development Engineers are experienced professionals who design, develop, and maintain complex software systems. They often lead technical projects, mentor junior developers, and ensure software quality and best practices within a team. Their responsibilities include writing code, conducting code reviews, collaborating with cross-functional teams, and solving challenging technical problems. Senior Software Development Engineers typically have several years of industry experience and a deep understanding of software engineering principles.

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

AspectSenior Software Development EngineerSoftware Development Engineer
ExperienceTypically 5+ years, with leadership responsibilitiesEntry to mid-level, 1-3 years of experience
ResponsibilitiesDesigning complex systems, mentoring juniors, leading projectsImplementing features, fixing bugs, collaborating on code
Skills & CertificationsProficiency in multiple programming languages, system design, often with certificationsStrong coding skills, foundational knowledge, less emphasis on certifications
Work EnvironmentOften leads teams, involved in architecture decisionsFocused on individual contributions, team collaboration

The main difference between a Senior Software Development Engineer and a Software Development Engineer lies in experience, responsibilities, and leadership. Seniors typically lead projects and mentor others, while juniors focus on coding and task completion. Both roles are vital in software development teams, with seniors bringing more strategic input and mentorship.

What engineer makes $500,000 a year?

Senior Software Development Engineers at top tech companies can earn $500,000 or more annually, often through a combination of base salary, bonuses, and stock options. Achieving this level typically requires extensive experience, advanced skills in areas like distributed systems or machine learning, and a track record of significant contributions or leadership roles.

Can you make $500,000 as a software engineer?

Senior software development engineers at large tech companies or with extensive experience and specialized skills can earn $500,000 or more annually, often through base salary, bonuses, and stock options. Achieving this level typically requires advanced expertise, leadership roles, or working in high-paying industries or regions with competitive compensation packages.
What cities in Ontario are hiring for Senior Software Development Engineer jobs? Cities in Ontario with the most Senior Software Development Engineer job openings:
Infographic showing various Senior Software Development Engineer job openings in Ontario as of July 2026, with employment types broken down into 1% As Needed, 82% Full Time, 14% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Senior Software Development Engineer in Test

United States Digital Space LLC

Toronto, ON • On-site

$90 - $120/hr

Other

Posted 9 days ago

Job description

Job Description

AC/BT’s mission is to deliver industry‑leading Contact Centre capabilities through cutting‑edge technology solutions.

We’re seeking a Senior Software Development Engineer in Test (SDET) to join our Quality Engineering (QE) team and drive automation excellence for AI‑powered agentic applications.

As a hands‑on Senior SDET, you’ll focus on designing and implementing automation solutions to ensure the reliability and intelligence of our next‑gen systems. Collaborate in an Agile environment to tackle complex testing challenges, from prompt engineering to end‑to‑end validation. Elevate quality, drive innovation, and make a direct impact on the company’s client experience.

Responsibilities
  • Design and implement tests across all levels (unit, integration, end‑to‑end), providing expertise on automation procedures, schedules, and risk mitigation.
  • Lead test strategy execution: Drive development of test specifications, data analysis, and timelines to ensure on‑time delivery.
  • Build automated test solutions using tools like Selenium, Cucumber, JMeter, and TestNG to enhance efficiency and coverage.
  • Analyze requirements and system behavior: Create data flow diagrams and define boundary conditions to maximize test coverage.
  • Manage test lifecycle: Oversee test execution, defect tracking, and results storage while adhering to agreed processes.
  • Support all test activities: Enhance, develop, and execute both manual and automated test scripts, recording and tracking software discrepancies to ensure thorough issue resolution.
  • Collaborate cross‑functionally: Partner with stakeholders and developers to ensure comprehensive testing, reliability, and performance.
  • Mentor SDETs: Guide teams on methodologies, coding standards, and best practices through code reviews and test plan design.
  • Document and structure knowledge: Ensure test cases and domain expertise are clearly articulated for seamless team execution.
  • Integrate testing into CI/CD pipelines: Embed tests for functional/non‑functional validation, monitor results, and resolve issues with developers.
Qualifications – Must Have
  • 5+ years of Quality Engineering experience in diverse environments (cloud, distributed, mainframe, APIs, databases), with a proven ability to resolve complex cross‑functional issues.
  • 3–5 years of hands‑on automation experience, designing efficient test strategies to reduce manual testing and covering component, integration, and end‑to‑end scenarios.
  • Expertise in testing Agentic applications using LLMs and prompt engineering techniques.
  • DevOps proficiency in CI/CD, GitHub Actions, ALM, JIRA, and qTest.
  • Automation tools expertise in Selenium, Robot Framework, and SOAPUI.
  • Programming skills in Python, Java, C#, SQL, Groovy, PowerShell, and source control tools (Git).
  • Experience in Agile/Iterative Waterfall, defining test strategies, and reviewing artifacts (code, automation scripts).
  • Knowledge of Service Virtualization (RIT, Wiremock), test data management, and non‑SQL databases (MongoDB, PostgreSQL).
Qualifications – Nice to Have
  • Contact Centre technology experience.
Benefits

We thrive on the challenge to be our best, progressive thinking to keep growing, and working together to deliver trusted advice to help our clients thrive and communities prosper. We care about each other, reaching our potential, making a difference to our communities, and achieving success that is mutual.

  • A comprehensive Total Rewards Program including bonuses and flexible benefits
  • Leaders who support your development through coaching and managing opportunities
  • Ability to make a difference and lasting impact
  • Work in a dynamic, collaborative, progressive, and high‑performing team
  • Access to a variety of job opportunities across business and geographies
Job Skills

Active Learning, Agile Methodology, Application Integrations, Detail‑Oriented, Enterprise Application Delivery, Group Problem Solving, Programming Languages, Software Development Life Cycle (SDLC)

Location

Address: WATERPARK PLACE, 88 QUEENS QUAY W, TORONTO

City: Toronto

Country: Canada

Work hours: 37.5 per week

Employment Type: Full time

Job Type: Regular

Pay Type: Salaried

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