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Senior Backend Developer Jobs in Ontario (NOW HIRING)

Varicent

Staff Backend Developer

Toronto, ON

CA$145K - CA$190K/yr

  • Medical

  • Dental

  • Vision

  • PTO

... and senior stakeholders, and play a key role in driving technical quality, scalability, and ... Design and build scalable backend services, APIs, and data pipelines that support core product ...

Pigment

Senior Backend Software Engineer

Toronto, ON · On-site +1

CA$100K - CA$180K/yr

If you're passionate about backend engineering, solving complex problems, and working on foundational technology, this is an ideal opportunity to make a significant impact! Who You Are: We value ...

Prophix

Senior Back End Engineer Java/OLAP

Etobicoke, ON · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

As a Senior Back-End Engineer specializing in Java and OLAP, you will own the Java side of that engine -- designing, optimizing, and scaling the cube capabilities that our customers depend on every ...

Rivalry

The Role This is a senior role working alongside the current backend software engineering team; however, you will also work alongside both experienced and junior frontend developers, as well as ...

d1g1t

Senior Software Engineer, Backend

Toronto, ON · On-site

About the Role We are looking for a Senior Software Engineer, Backend to join our engineering team and contribute to a large, complex production platform used by sophisticated financial services ...

d1g1t

Senior Software Engineer, Backend

Toronto, ON · On-site

About the Role We are looking for a Senior Software Engineer, Backend to join our engineering team and contribute to a large, complex production platform used by sophisticated financial services ...

d1g1t

Senior Software Engineer, Backend

Toronto, ON · On-site

About the Role We are looking for a Senior Software Engineer, Backend to join our engineering team and contribute to a large, complex production platform used by sophisticated financial services ...

Pinterest

Sr. Software Engineer, Backend

Toronto, ON · On-site +1

We are looking for inquisitive, well-rounded Senior Full-Stack and Backend engineers to join our ... Actively work to improve the developer process and experience in all phases from coding to ...

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Senior Backend Developer information

See Ontario salary details

$60K

$129.4K

$175.5K

How much do senior backend developer jobs pay per year?

As of Aug 13, 2026, the average yearly pay for senior backend developer in Ontario is $129,369.00, according to ZipRecruiter salary data. Most workers in this role earn between $108,500.00 and $147,500.00 per year, depending on experience, location, and employer.

What does a senior backend developer do?

A Senior Backend Developer is responsible for designing, building, and maintaining the server-side logic of web applications. They work with databases, APIs, and server infrastructure to ensure that applications run smoothly, securely, and efficiently. In addition to writing robust code, they often mentor junior developers, contribute to architectural decisions, and collaborate with frontend teams to deliver seamless user experiences. Their expertise is crucial for scaling applications and implementing best practices in software development.

What is the difference between Senior Backend Developer vs Backend Developer?

AspectSenior Backend DeveloperBackend Developer
Required Experience5+ years, leadership skills1-3 years, foundational skills
ResponsibilitiesDesign architecture, mentor juniors, optimize systemsImplement features, fix bugs, write code
Skills & CertificationsAdvanced coding, system design, relevant certificationsBasic coding, database knowledge
Work EnvironmentCollaborates with cross-functional teams, often in larger projectsFocuses on individual tasks within projects

The main difference between a Senior Backend Developer and a Backend Developer lies in experience, responsibilities, and leadership. Senior Backend Developers typically have more years of experience, take on complex system design, and mentor junior staff, whereas Backend Developers focus on implementing features and fixing bugs. Both roles are essential in backend development teams, but the senior role involves more strategic and leadership duties.

What are the key skills and qualifications needed to thrive as a senior backend developer, and why are they important?

To thrive as a Senior Backend Developer, you need advanced proficiency in server-side programming languages (such as Java, Python, or Node.js), deep understanding of API design, and experience with database management, often supported by a degree in computer science or related field. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and relevant certifications in backend technologies are commonly required. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with cross-functional teams and mentor junior developers. These competencies ensure robust, scalable backend systems and drive successful project delivery in complex technical environments.

What are common challenges senior backend developers face when leading complex projects, and how can they address them?

Senior Backend Developers often encounter challenges such as integrating legacy systems with new technologies, ensuring scalability under increased load, and coordinating cross-functional teams for seamless feature delivery. Addressing these challenges typically involves proactive architectural planning, clear communication with frontend and DevOps teams, and adopting best practices like code reviews and automated testing. Staying updated on emerging technologies and fostering a culture of knowledge sharing within the team also help in overcoming technical obstacles and driving successful project outcomes.

What are the most commonly searched types of Backend Developer jobs in Ontario?

The most popular types of Backend Developer jobs in Ontario are:

What are popular job titles related to Senior Backend Developer jobs in Ontario?

For Senior Backend Developer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Senior Backend Developer jobs in Ontario look for?

The top searched job categories for Senior Backend Developer jobs in Ontario are:

What cities in Ontario are hiring for Senior Backend Developer jobs?

Cities in Ontario with the most Senior Backend Developer job openings:

Senior Backend Developer jobs near you
Infographic showing various Senior Backend Developer job openings in Ontario as of August 2026, with employment types broken down into 72% Full Time, 14% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $129,369 per year, or $62.2 per hour.

Senior Backend Engineer - Brand Platform

Faire

Kitchener, ON

CA$156K - CA$214K/yr

Full-time

Re-posted 7 days ago

Job description

About this role:

Our Brand engineering team owns the code that our Brands use to manage their business on Faire. This includes managing product listings, fulfilling orders, and communicating with retailers. This role is for the brand platform sub-team and focuses on laying a strong foundation for customer-facing teams to build on.

We care about good engineering practices and love to write software that is secure, tested, easy to maintain, and scalable to millions of users. We build minimum viable products, deploy to production multiple times per day, A/B test customer-facing changes, listen to the data, and iterate.

As a Senior Back-end on the Brand Platform team, you'll collaborate with us to:

  • Define clear service boundaries
  • Build out AI enablement for common tasks on the team
  • Optimize the performance of our highest contention data models.
  • Deliver core features of our Kotlin server
  • Design and build new APIs used by our website and mobile app
  • Help the product team continuously improve our customer's experience

We're excited about you because you have:

  • A passion for programming and solving problems with code
  • Examples of using AI to automate large-scale quality improvements of existing code bases
  • A deep understanding of NewSQL relational databases like CockroachDB
  • Experience digging into engineering productivity and finding opportunities for improvements across multiple teams
  • A love for technology, and an insatiable curiosity for new tools to tackle real problems

Technologies we use and teach:

  • Kotlin, Java
  • JUnit, Hibernate, Guice, Jersey
  • HTTP, JSON, and Protocol Buffers
  • MySQL, CockroachDB
  • AWS

Salary range:

Canada: the pay range for this role is $156,000 - $214,500 per year. 

This role will also be eligible for equity and benefits. Actual base pay will be determined based on permissible factors such as transferable skills, work experience, market demands, and primary work location. The base pay range provided is subject to change and may be modified in the future.

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