Senior Back-End Developer
Rumble is the Freedom-First technology platform. We proudly offer a video platform, cloud services, advertising solutions, and a non-custodial cryptocurrency wallet.

The Senior Back-End Developer is responsible for designing, building, and maintaining high-performance server-side systems that power a large-scale video platform serving millions of users. This role encompasses architecture and optimization of backend services, database design, caching strategies, and API development. You will also be responsible for integrating front-end elements built by your coworkers into the application, so a solid understanding of front-end technologies is necessary.

Duties/Responsibilities

Architect and implement scalable backend systems and features for a high-traffic video platform

Design and optimize MySQL database schemas for performance at scale

Implement and maintain caching strategies using Memcached and RedisBuild and maintain APIs that serve client-facing applications

Integrate user-facing elements developed by front-end developers with server-side logic

Identify performance bottlenecks and implement optimizations for maximum speed and scalability

Develop and maintain background tasks and data pipelines handling very large datasets

Con­duct code reviews and drive technical decisions on system design and architecture

Maintain, refactor, and modernize legacy codebases

Build reusable libraries and establish patterns for future development

Other duties, as assigned

Requirements

8 years of experience as a back-end developer





10 years of experience with object-oriented programming languages

5 years of experience with PHP specifically, including PHP 8+

Strong experience with MySQL, including query optimization, indexing strategies, and schema design

Experience with caching layers (Memcached, Redis)

Proven ability to build and optimize systems operating at high scale and throughput

In-depth understanding of web development and HTTP protocols

Experience with Linux server environments, including navigating consoles, reading logs, and troubleshooting production issues

Experience and/or knowledge with front-end languages such as JS/TypeScript, HTML, CSS

Willingness to jump in on any project, when needed, regardless of code quality

Preferred Qualifications

Knowledge of video technologies, containers, codecs, and live streaming

Experience with NGINX configuration and optimization

Experience with WebSocket for real-time communication

Experience in BASH scripting and automation

Understanding of networking fundamentals

Familiarity with static analysis tools (e.g., PHPStan) and modern PHP coding standards

Desired Qualifications

Degree in Computer Science/Engineering or related field

Experience migrating or modernizing legacy PHP codebases





Experience with server-side rendering architectures

Experience with CI/CD pipelines and automated testing (PHPUnit)

Annual Compensation Range
$135,000 - $154,000 CAD base + benefits + equity

EEO Statement
Rumble is an equal opportunity employer. We promote an equal playing field and provide 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
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.

Company Culture

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 rapid and want to win

We pay competitive salaries and provide great benefits

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📌 Senior Back-End Developer (Ontario)
🏢 Rumble
📍 Ontario