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Javascript Backend Developer Jobs in Toronto, ON

Rumble

Senior Back-End Developer

Toronto, ON

CA$135K - CA$154K/yr

Rumble is seeking a Senior Back-End Developer to design, build, and maintain high-performance ... Working knowledge of front-end technologies such as JavaScript or TypeScript, HTML, and CSS, along ...

ShyftLabs

Senior Backend Developer

Toronto, ON · Hybrid

CA$100K - CA$140K/yr

  • Medical

  • Dental

  • Vision

The ideal candidate combines strong backend and frontend engineering skills with experience in ... JavaScript, TypeScript, Node.js, and GraphQL remain core requirements for this role. What You'll Do

Rumble - Career Page

Senior Back-End Developer

Toronto, ON · On-site

CA$135K - CA$154K/yr

Rumble is seeking a Senior Back-End Developer to design, build, and maintain high-performance ... Working knowledge of front-end technologies such as JavaScript or TypeScript, HTML, and CSS, along ...

Manulife

Back-End Software Engineer

Toronto, ON · Hybrid

CA$86K - CA$136K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... using Azure DevOps, Jenkins, GitHub Actions, or similar technologies * Proven experience in ... Experience with JavaScript, React, and/or NodeJS would be an asset. When you join our team: * We'll ...

Scotiabank

Senior Web Developer

Toronto, ON · On-site +1

  • PTO

Work closely with backend, DevOps, and cloud platform teams to support endtoend delivery ... Strong expertise with JavaScript/TypeScript, PHP, HTML5, and CSS3. * Deep handson experience with ...

Lifeworks

Intermediate Frontend Angular Developer

Toronto, ON

CA$60K - CA$85K/yr

  • Medical

  • Retirement

  • PTO

You'll work closely with Business Analysts, product managers, and backend developers to understand ... Strong proficiency in TypeScript, JavaScript, HTML5, and CSS/SCSS. You understand semantic HTML ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in Toronto, ON

Javascript Backend Developer information

See Toronto, ON salary details

$39.6K

$117.3K

$170.8K

How much do javascript backend developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for javascript backend developer in Toronto, ON is $117,322.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,911.00 and $137,424.00 per year, depending on experience, location, and employer.

What does a JavaScript backend developer do?

A JavaScript Backend Developer is responsible for building and maintaining the server-side logic, databases, and APIs that power web applications. They use JavaScript, often with frameworks like Node.js, to process requests, manage data, and ensure smooth communication between the frontend and backend of an application. Their work ensures that web applications are scalable, secure, and efficient. JavaScript Backend Developers also collaborate with frontend developers and other team members to deliver seamless user experiences.

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

To thrive as a Javascript Backend Developer, you need strong proficiency in JavaScript (especially Node.js), knowledge of backend frameworks, and a solid understanding of databases such as MongoDB or PostgreSQL. Familiarity with development tools like Git, RESTful APIs, Docker, and cloud platforms, as well as relevant certifications, is highly valuable. Excellent problem-solving, teamwork, and communication skills help you collaborate effectively and deliver robust solutions. These abilities are crucial for building scalable, secure, and maintainable backend services that power modern applications.

What are the typical challenges a JavaScript backend developer faces when scaling applications for high traffic?

JavaScript Backend Developers, especially those working with Node.js, often encounter challenges related to handling high concurrency, optimizing database queries, and maintaining application performance under heavy load. Ensuring efficient memory management and implementing robust error handling are also critical when scaling. Working closely with DevOps and frontend teams to optimize APIs and monitor system health is essential for delivering reliable, scalable backend solutions.

What is the difference between Javascript Backend Developer vs Javascript Frontend Developer?

AspectJavascript Backend DeveloperJavascript Frontend Developer
Primary FocusServer-side development, APIs, databasesUser interface, client-side interactions
Required SkillsNode.js, databases, server managementHTML, CSS, JavaScript, UI frameworks
Work EnvironmentBack-end servers, cloud platformsWeb browsers, client devices
Common UsageBuilding APIs, server logicDesigning web pages, user experience

The main difference between a Javascript Backend Developer and a Javascript Frontend Developer lies in their focus areas. Backend developers handle server-side logic, databases, and APIs, while frontend developers focus on creating engaging user interfaces and client-side interactions. Both roles require JavaScript skills but apply them in different parts of web development projects.

What are popular job titles related to Javascript Backend Developer jobs in Toronto, ON?

For Javascript Backend Developer jobs in Toronto, ON, the most frequently searched job titles are:

What job categories do people searching Javascript Backend Developer jobs in Toronto, ON look for?

The top searched job categories for Javascript Backend Developer jobs in Toronto, ON are:

Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 84% Full Time, 3% Part Time, and 13% Contract. Highlights an 79% Physical, 8% Hybrid, and 13% Remote job distribution, with an average salary of $117,322 per year, or $56.4 per hour.

Senior Back-End Developer

Rumble

Toronto, ON

CA$135K - CA$154K/yr

Full-time

Re-posted 2 days ago

Job description

About RUM Group Inc.

RUM Group Inc. is an AI infrastructure and video company. Its Quake AI business delivers AI compute as a service, operating AI data centers including GPU and CPU compute, storage, and networking at scale. Rumble, RUM Group's video business and the original tenant of Quake AI, provides creators and enterprises a full suite of video technologies, unlocking reach, scale, and monetization. RUM Group is building the rails of the agentic-first enterprise: the AI compute, cloud infrastructure, and trust layer for the agentic AI future, advancing RUM Group's mission to maximize the power of human imagination. For more information visit www.rum.group.

Rumble is seeking a Senior Back-End Developer to design, build, and maintain high-performance server-side systems that power a large-scale video platform serving millions of users. This is a senior individual contributor role for someone who can own backend systems end to end, improve them in production, and make strong technical decisions as scale, complexity, and performance demands grow.

Our environment centers on backend services, data-intensive application logic, and production systems that must perform reliably at high scale. You should be comfortable working across PHP, MySQL, caching layers, APIs, Linux environments, and legacy systems, while also partnering effectively with front-end engineers to connect user-facing components to server-side logic.

You'll work closely with engineering partners to turn requirements into clear technical plans, apply strong systems design fundamentals to complex backend problems, and make sound implementation decisions across application, data, and infrastructure layers.

Responsibilities

Design and evolve scalable backend systems for a high-traffic video platform, with a focus on performance, maintainability, and long-term reliability. This includes building APIs, optimizing MySQL schemas and queries, implementing effective caching strategies with Memcached and Redis, and supporting background jobs or data-processing workloads that operate at significant scale.

The role also includes maintaining and modernizing legacy code, integrating front-end components with backend logic, and contributing to technical direction through code reviews, reusable patterns, and sound architectural judgment.

Qualifications
  • 8+ years of experience in back-end development, including strong experience building production systems at scale.
  • 10+ years of experience with object-oriented programming languages, including 5+ years working with PHP and modern PHP practices such as PHP 8+.
  • Strong experience with MySQL, including schema design, indexing, and query optimization, along with hands-on experience using caching systems such as Memcached and Redis.
  • In-depth understanding of web development fundamentals, HTTP protocols, and Linux server environments, including reading logs and troubleshooting production issues.
  • Working knowledge of front-end technologies such as JavaScript or TypeScript, HTML, and CSS, along with the willingness to jump into any project when needed.
Preferred Qualifications
  • Experience with video technologies, containers, codecs, or live streaming environments.
  • Experience with NGINX, WebSocket-based communication, BASH scripting, networking fundamentals, or static analysis tools such as PHPStan.
  • Degree in Computer Science, Engineering, or a related field.
  • Experience modernizing legacy PHP applications, working with server-side rendering architectures, or contributing to CI/CD and automated testing practices such as PHPUnit.

Note: The salary range listed for this position is a good faith estimate based on experience, qualifications, and internal compensation structure. The actual salary offered varies depending on the candidate's skill level and experience. This posting refers to an active vacancy within the organization.

Annual Compensation Range:

$135,000 - $154,000 CAD base + benefits + equity

Note: The salary range listed for this position is a good faith estimate based on experience, qualifications, and internal compensation structure. The actual salary offered varies depending on the candidate's skill level and experience. This posting refers to an active vacancy within the organization.

Why Our Team Loves Working Here:

  • We are making a significant financial impact for our video creator community; we're proud of their success stories
  • We enjoy challenging the status quo and going head-to-head against Big Tech
  • We aren't afraid to try new things; we act fast and want to win
  • We pay competitive salaries and provide great benefits

EEO Statement:
Rumble is an equal opportunity employer.  We promote an equal playing field where everyone has the same opportunities regardless of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability status, or any other applicable characteristics protected by law. Rumble is an active participant in the e-verify program.

Physical demands of the position:
While performing the duties of this job, the employee is regularly required to sit for prolonged periods of time while using a computer and/or keyboard. The employee is required to communicate verbally and hear. The employee may be required to walk, reach with hands and arms, balance, and stoop or kneel. The employee may occasionally be required to lift and/or move up to 15 pounds. Specific vision abilities required by this job include clarity of vision at approximately 20 inches or less (i.e., working with small objects or reading small print), including the use of computers.