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Principal Software Developer Jobs in Ontario (NOW HIRING)

... Principal Software Engineer (AI) to help set the technical direction of our products and platform. You'll provide technical leadership across squads, projects, and product, shaping architectural ...

Principal Software Engineer

Toronto, ON · On-site

CA$112K - CA$162K/yr

The Role As a Principal Software Engineer on ourData Feed Platform team (Direct - Data & Research), you will partner with product owners and engineering teams to shape the technical direction of our ...

Principal Software Engineer

Toronto, ON · On-site

CA$180K - CA$210K/yr

Principal Software Engineer Location: Toronto (Onsite/ Hybrid) Job Type: Full-Time Hiring Timeline: Immediate Reporting Line: Head of R&D Existing Vacancy: Yes Application Deadline: Open until Filled ...

Principal Software Engineer

Toronto, ON · On-site

CA$180K - CA$210K/yr

Principal Software Engineer Location: Toronto (Onsite/ Hybrid) Job Type: Full-Time Hiring Timeline: Immediate Reporting Line: Head of R&D Existing Vacancy: Yes Application Deadline: Open until Filled ...

As a Principal Software Engineer focused on Security & Compliance, you will set the technical direction for how CoCounsel earns and maintains the trust of law firms, corporate legal departments, and ...

The role of Principal Software Architect (AI-driven Development) involves acting as a technical ... Business-Aligned Engineering:Demonstrated ability to align technical refactoring and feature ...

We are seeking an experienced Principal Engineer to lead the evolution and optimization of high-scale programmatic reporting systems at Amazon Ads. This role will drive the technical vision for how ...

This is engineering at the foundation of the software stack, where every optimization, architectural decision, and line of code can impact millions of devices around the globe. As a member of our ...

Showing results 21-40

Principal Software Developer information

See Ontario salary details

$81.5K

$146K

$268.5K

How much do principal software developer jobs pay per year?

As of Sep 15, 2026, the average yearly pay for principal software developer in Ontario is $146,026.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,000.00 and $168,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a principal software developer?

To thrive as a Principal Software Developer, you need advanced expertise in software engineering, architecture design, and problem-solving, typically backed by a degree in computer science or a related field and extensive industry experience. Mastery of programming languages (such as Java, Python, or C#), software development frameworks, cloud platforms, and familiarity with tools like Git, Docker, and CI/CD systems is critical. Leadership, effective communication, and mentorship abilities are vital soft skills that set top performers apart in this role. These competencies ensure scalable solutions, effective project delivery, and the growth of high-performing development teams.

How does a principal software developer typically balance hands-on coding with leadership and mentorship responsibilities?

As a Principal Software Developer, you’ll often split your time between writing high-impact code and guiding technical direction for the team. While you remain involved in architecting and developing complex features, a significant portion of your role will also involve mentoring less-experienced developers, leading code reviews, and fostering best practices. You’ll collaborate closely with cross-functional teams to align technical solutions with business goals, and you’re expected to influence the overall engineering culture. This balance requires strong time management skills and a passion for both technical excellence and team development.

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

AspectPrincipal Software DeveloperSenior Software Engineer
CredentialsBachelor's or Master’s in Computer Science; extensive experienceBachelor's or Master’s in Computer Science; 5+ years experience
Work EnvironmentLeads technical strategy, mentors teams, influences architectureDevelops features, writes code, mentors junior staff
Industry UsageUsed in large organizations, tech companies, and enterprise settingsCommon across startups, mid-sized, and large companies

The Principal Software Developer typically holds a higher-level role focused on technical leadership, architecture, and strategic planning, whereas the Senior Software Engineer primarily focuses on coding, feature development, and mentoring. Both roles require strong technical skills, but the Principal position involves broader responsibilities and influence within the organization.

What are popular job titles related to Principal Software Developer jobs in Ontario?

For Principal Software Developer jobs in Ontario, the most frequently searched job titles are:

What cities in Ontario are hiring for Principal Software Developer jobs?

Cities in Ontario with the most Principal Software Developer job openings:

Infographic showing various Principal Software Developer job openings in Ontario as of August 2026, with employment types broken down into 85% Full Time, 11% Part Time, and 4% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $146,026 per year, or $70.2 per hour.

Senior or Principal Software Engineer(s)

Toronto, ON • On-site

Other

Posted 3 days ago

New


Job description

Senior or Principal Software Engineer(s)

Principal Engineer

As a Principal Engineer, you will be a strong technical leader on the individual contributor (IC) track with deep experience in software development. Your primary responsibility will be to drive technical excellence and innovation in our projects.

We highly value technical knowledge, effective communication, and sound judgement as core competencies. We entrust our Principal Engineers to leverage these skills in achieving our shared goals across various departments. In essence, we hire smart and responsible individuals, agree on clear objectives, and empower them to make a significant impact.

Responsibilities:
  • Lead the development of web applications using React and NodeJS (both in Typescript) using GraphQL and a Postgres database on AWS infrastructure
  • Help improve the quality of our implementations by providing code reviews, system designs, and technical oversight, setting high standards for our team
  • Participate in crucial technology decisions to shape the architecture and product roadmap of the company as we scale and serve millions of people across Canada
  • Design and implement solutions for specific tickets
  • Working with code and project management tools such as Jira
  • Ensure our engineering practices follow best principles, strengthening our team and projects
  • Collaborate directly with Engineering Leadership and Product Management to drive forward product roadmap, either directly or by supporting emerging leaders on your team
  • Mentor colleagues to help them grow and share your insights
  • Assist with resource planning, hiring, and onboarding of new team members
Some projects you could expect to work on:
  • Creating new patient and pharmacist flows (eg. intakes, modules, features) to meet the needs of both our national enterprises and mom-and-pop pharmacy partners
  • Scaling our test environments using the AWS CDK (IaC)
  • Working with 3rd party digital health platforms (eg. EHRs/pharmacy software, remote monitoring devices) to facilitate integration and data interoperability that allows pharmacists to deliver more personalized, proactive care
  • Building & versioning APIs that are consumed by third parties
Our Tech Stack
  • React 17+
  • Node.js/Typescript with GraphQL
  • PostgreSQL
  • AWS infrastructure (CDK or Terraform a plus)
  • Typescript (both frontend and backend)
  • Dockerized / Container Infrastructure
  • Github & Github actions

We value technology problem solvers over technology specialists. In general, you should be comfortable with web applications, understand the presentation layer, state management, service calls and server side business logic, persistence, infrastructure, and so on. If you don’t have material direct experience with specific technologies listed above but have worked on similar types of products in the past, you may still be a good fit for our team.

About You
  • You are an experienced full-stack software engineer who has led multiple projects from concept to delivery.
  • You are a team player and you enjoy collaborating with your fellow team members to work through ideas and challenges
  • You have a growth mindset and you seek out opportunities to grow.
  • Your communication style is open, concise, and effective; you can easily explain technical concepts to non-technical parties.
  • You care about the products you build and about the people who ultimately use them
  • You are looking for an opportunity to grow your people management skills
  • You feel comfortable adding value at any point of the software lifecycle
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