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Senior​/Principal Engineer

Job in Mississauga, Ontario, Canada
Listing for: Canonical
Full Time position
Listed on 2026-01-29
Job specializations:
  • Software Development
    Cloud Engineer - Software, Software Engineer, DevOps
Job Description & How to Apply Below
Position: Senior/Staff/Principal Engineer
Overview  Join to apply for the  Senior/Staff/Principal Engineer  role at  Canonical .
Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include leading public cloud and silicon providers and industry leaders in many sectors. Canonical is a pioneer of global distributed collaboration, with 1200+ colleagues in 75+ countries and very few office-based roles.

Teams meet two to four times yearly in person at locations around the world. The company is founder-led, profitable, and growing. After the first round of interviews we will establish which teams might be an excellent fit and progress your application with them.

Role and responsibilities   Leading design and architecture of an impactful open source project
Coding in Golang, Rust, Python, C/C++ or Typescript / React
Collaborating proactively with a globally distributed team
Mentoring, developing and advising colleagues in their career progression
Displaying technical leadership in Canonical and our communities
Debugging issues and producing high-quality code to fix them
Contributing to technical documentation with the aim to make it the best of its kind
Working from home with global travel twice annually for company events

What we are looking for in you   An exceptional academic track record from both high school and university
Undergraduate degree in Computer Science or STEM, or a compelling narrative about an alternative path
Drive and a track record of going above-and-beyond expectations
Technical leadership as well as team motivation, direction and pace
Deep experience with at least one of Go, Rust, Python or C
Conscientiousness and detail orientation, with a focus on performance
Excellent communication skills including professional written and spoken English
Excellent interpersonal skills, curiosity, flexibility, and accountability
Ability to travel twice a year, for company events up to two weeks each

Nice-to-have skills   Container technologies such as LXD, Docker and Kubernetes
Highly concurrent, distributed systems
Performance engineering – from kernel to web – benchmarks, optimization
Software security – fuzzing, tabletop threat models, analysis, audit
Build systems and tool chains, including for cross-compilation
Public clouds or Open Stack
Debian/Ubuntu packaging
Systems programming or scalable web services
Deep quality and test engineering
Web or Flutter front-end experience
REST and gRPC API experience
SQL and No

SQL data store expertise

What we offer you   Distributed work environment with twice-yearly team sprints in person
Personal learning and development budget of USD 2,000 per year
Annual compensation review
Recognition rewards
Annual holiday leave
Maternity and paternity leave
Team Member Assistance Program & Wellness Platform
Opportunity to travel to new locations to meet colleagues
Travel upgrades for long-haul company events

About Canonical  Canonical is a pioneering tech firm at the forefront of the global move to open source. We publish Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud. We recruit globally and operate as a remote-first company. Canonical has been remote-first since 2004. Working here challenges you to think differently, work smarter, and raise your game.

Canonical is an equal opportunity employer. We foster a workplace free from discrimination and will give your application fair consideration regardless of identity.

Seniority level   Mid-Senior level

Employment type

Full-time
Job function   Education and Training
Industries   Software Development

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Position Requirements
10+ Years work experience
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