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Back End Developer Jobs in Ontario (NOW HIRING)

United Airlines

Java Back end Developer

Toronto, ON

Architect and build scalable backend services and modern frontend applications. * Champion AI/LLM integration and prompt engineering best practices across the team. * Drive adoption of best-in-class ...

YO AI Labs

Backend Developer - Remote

Ottawa, ON · Remote

$80 - $120/hr

Senior Software Engineer Job Type: Contractor (~15 hours/week) Location: Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training project by creating ...

YO AI Labs

Backend Developer - Remote

Toronto, ON · Remote

$80 - $120/hr

Senior Software Engineer Job Type: Contractor (~15 hours/week) Location: Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training project by creating ...

Lakeview Loan Servicing

Backend Engineer

Toronto, ON · Remote

CA$140K - CA$240K/yr

Overview The Backend Engineer on the AI Platform team plays a critical role in building and ... Continuously improve service performance, reliability, scalability, security, and developer ...

Worthland

Senior Backend Engineer (Web3)

Toronto, ON · On-site

CA$300K - CA$450K/yr

Role Overview We are seeking a Senior Backend Engineer (Web3) with strong expertise in Go and ... Collaborative, developer-focused work environment in a downtown office . * Inclusive and dynamic ...

Worthland

Senior Backend Engineer (Web3)

Toronto, ON · On-site

CA$300K - CA$450K/yr

Role Overview We are seeking a Senior Backend Engineer (Web3) with strong expertise in Go and ... Collaborative, developer-focused work environment in a downtown office . * Inclusive and dynamic ...

Citi

Lead Core Backend Developer

Mississauga, ON · On-site

CA$120K - CA$170K/yr

... engineering mind-set to development work: understand use-cases in details, develop metrics to build good estimates of volume and compute velocity requirements, understand and discuss openly any ...

Fulfillment IQ

Backend Engineer III

Toronto, ON · Hybrid

CA$125K/yr

Backend Engineer III 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 Salary ...

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Showing results 21-40

All JobsBack End Developer JobsBack End Developer Jobs in Ontario

Back End Developer information

See Ontario salary details

$24.5K

$103.4K

$162K

How much do back end developer jobs pay per year?

As of Sep 9, 2026, the average yearly pay for back end developer in Ontario is $103,394.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,000.00 and $123,000.00 per year, depending on experience, location, and employer.

What is a back end developer?

A Back End Developer is a programmer who specializes in building and maintaining the server-side logic, databases, and application functionality that power websites and web applications. Unlike front end developers, who focus on the visual and interactive elements users see, back end developers work behind the scenes to ensure data is stored, processed, and delivered correctly. They typically use programming languages like Python, Java, Ruby, or PHP, and interact with databases such as MySQL or MongoDB. Their work is crucial for making sure applications run smoothly, securely, and efficiently.

What is a back end developer?

A back end developer is a computer science professional who specializes in functionality that takes place on the server side or backend. As a back end developer, you write code to create software that solves a business need. Your responsibilities are to research the needs of either your employer, or a particular industry, find a problem, and create a software solution. A back end developer differs from a traditional web developer, or front end developer, in that back-end software may not have a user interface or even have exposure to the web.

What are the key skills and qualifications needed to thrive as a back end developer?

To thrive as a Back End Developer, you need strong programming skills in languages like Java, Python, or Node.js, along with a solid understanding of databases and API design, typically supported by a degree in computer science or related experience. Familiarity with frameworks such as Spring or Django, version control systems like Git, and cloud platforms (e.g., AWS or Azure) is often required, with certifications in these areas considered beneficial. Problem-solving, effective communication, and teamwork are crucial soft skills that help developers collaborate and address complex technical challenges. These competencies are vital for building reliable, scalable systems that support front-end applications and ensure robust product performance.

What are some common challenges back end developers face when integrating with front-end teams?

Back End Developers often encounter challenges when aligning data structures and APIs with front-end requirements, especially as user interface needs evolve rapidly during development. Effective communication and regular collaboration with front-end developers are essential to ensure that endpoints, data formats, and error handling are well-coordinated. Additionally, maintaining consistent documentation and using tools like Swagger or Postman can help streamline integration and reduce misunderstandings between teams.

What is the difference between Back End Developer vs Front End Developer?

AspectBack End DeveloperFront End Developer
Primary FocusServer-side logic, databases, APIsUser interface, website layout, client-side scripting
Skills & TechnologiesLanguages like Java, Python, Ruby; databases; server managementHTML, CSS, JavaScript, frameworks like React or Angular
Work EnvironmentBackend systems, server environments, cloud platformsDesign tools, browser testing, UI/UX design
Common CertificationsCertified Web Developer, AWS Certified DeveloperCertified Front End Developer, UI/UX certifications

Back End Developers focus on server-side logic, databases, and APIs, ensuring the website's functionality behind the scenes. Front End Developers work on the visual and interactive aspects users see and interact with. Both roles are essential in web development, often collaborating to create seamless digital experiences.

Is back end developer in demand?

Back end developers are in high demand due to the growth of web applications and digital services. Skills in programming languages like Python, Java, or Node.js, along with knowledge of databases and APIs, are highly sought after by employers across various industries.
More about Back End Developer jobs

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

The most popular types of Back End Developer jobs in Ontario are:

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For Back End Developer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Back End Developer jobs in Ontario look for?

The top searched job categories for Back End Developer jobs in Ontario are:

What are popular job titles related to Back End Developer jobs in ON?

For Back End Developer jobs in ON, the most frequently searched job titles are:

Back End Developer jobs near you
Infographic showing various Back End Developer job openings in Ontario as of September 2026, with employment types broken down into 1% As Needed, 77% Full Time, 17% Part Time, 1% Temporary, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $103,394 per year, or $49.7 per hour.

Senior Backend Developer | Agency | Hybrid or remote ON | $100-110K

London, ON • On-site, Remote

White Bay
See more jobs at White Bayexternal

$90K - $110K/yr

Full-time

Posted 15 days ago

Job description

The Company


An established and forward-thinking digital agency is seeking a Senior Backend Developer to join its growing team in London, Ontario. Known for delivering enterprise-grade digital solutions for mid-market and enterprise organizations, this innovative firm combines strategy, technology, and creativity to build high-performing web applications and marketing technology platforms. Collaboration, continuous learning, and emerging technologies—including AI-powered development workflows—are at the heart of its culture.


The Role


This is an opportunity for an experienced backend developer to lead the design, development, and delivery of scalable web applications and integrations. Working alongside designers, UX specialists, product owners, and fellow developers, the successful candidate will build robust PHP-based solutions, architect API-driven systems, mentor team members, and help shape development best practices. This role also embraces AI and automation to improve efficiency while maintaining accountability for code quality and technical excellence.


Responsibilities


  • Design, develop, maintain, and optimize enterprise web applications using PHP and CMS platforms such as WordPress.
  • Build and integrate REST, GraphQL, SOAP, and webhook-based APIs.
  • Develop headless CMS and API-first architectures.
  • Write clean, reusable, well-tested code that meets established quality standards.
  • Utilize AI and automation tools to improve development workflows and accelerate delivery.
  • Collaborate with cross-functional teams to deliver innovative digital solutions.
  • Provide technical leadership, mentorship, and architectural guidance to developers.
  • Troubleshoot complex technical challenges and recommend scalable solutions.
  • Identify project risks, communicate progress, and contribute to Agile Scrum ceremonies.
  • Champion continuous improvement across development processes and best practices.


Requirements


  • 6+ years of professional PHP development experience.
  • 4+ years designing API-driven and headless CMS solutions.
  • Strong experience with REST, GraphQL, SOAP, web services, and system integrations.
  • Advanced knowledge of MySQL and database optimization.
  • Experience architecting scalable software solutions and integration patterns.
  • Proficiency with Laravel, Symfony, CodeIgniter, or similar PHP frameworks.
  • Experience with Git, unit testing, CI practices, and Agile development.
  • Strong understanding of AI-assisted development, automation tools, and workflow platforms.
  • Knowledge of web security, WCAG standards, and modern software design principles.
  • University degree or college diploma in Software Development, Computer Science, Engineering, or a related discipline.



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