Linux Kernel Engineer

Home based - Worldwide

This is a general track for applications to any team at Canonical that works with the Linux kernel, across all seniority levels. Apply here if you are an exceptional software engineer who wants to work on both stable and cutting edge Linux kernels for Ubuntu and its wider ecosystem.

Canonical has a large and rapidly growing kernel team that underpins Ubuntu and open source more widely across a very wide range of hardware and use cases. We partner with the biggest kernel contributors - the silicon companies - to ensure that their work reaches the widest possible audience as quickly  as possible, with a 10 year enterprise security commitment.

The Canonical Linux Kernel Organization has teams in every time zone. We have opportunities for technical leadership, engineering management, and engineering directorships. The team is responsible for all supported Ubuntu Linux kernels, on all platforms and architectures from small embedded devices to standard desktop/server systems to large scale cloud environments, mainframes and supercomputers.

We care most about hardware and virtualization enablement, security, reliability and performance. There are a number of areas where we lead upstream, but for the most part we are interested in ensuring production readiness and performance for the latest patchsets, rather than subsystem maintenance or evolution.

Kernel Team projects include but are not limited to:

  • Ubuntu Linux kernel plan, execution, benchmarking and stress testing
  • Optimised kernels for key silicon and cloud partners
  • Confidential computing and next-generation security primitives
  • Developer platforms such as Raspberry Pi and RISC-V
  • Enabling Ubuntu on a wide range of embedded systems
  • Kernel Livepatch, which delivers critical kernel fixes without rebooting
  • FIPS compliance
  • Real-Time and Low Latency kernel variants and patchsets
  • Virtualisation or abstraction engines
  • Container technology
  • Security with AppArmor, SECCOMP, namespaces and more
  • Networking - in particular performance and security
  • Storage - we are particularly interested in Ceph and DRBD

We hire candidates of all experience levels from recent university graduates through seasoned industry experts. We select those who are enthusiastic to work in multiple areas including security mitigation, feature development, patching and test.  You must have outstanding academic results, a background in software engineering, be motivated to work in a distributed team and willing to travel globally twice a year for company engineering events.

Location: Working from home, worldwide.   We have kernel teams and openings in every time zone and with the notable exception of Taipei, Taiwan, have no offices and therefore no pressure to work from an office.

What your day will look like

  • Collaborate regularly and proactively with a globally distributed team 
  • Work closely with silicon, cloud, or hardware manufacturers
  • Diagnose and resolve issues in the kernel
  • Take personal responsibility for a flavour of the Ubuntu Linux kernel
  • Improve tooling and automation for delivery and test of Ubuntu Linux kernels
  • Submit, review, and apply kernel patches

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 your alternative path
  • Drive and a track record of going above-and-beyond expectations
  • Well-organised, self-starting and able to deliver to fixed schedules
  • Professional manner interacting with colleagues, partners, and community
  • Ability to communicate effectively in English, both written and oral
  • Significant programming experience in C
  • Solid background with git
  • Broad knowledge of the Linux kernel and kernel subsystems
  • Demonstrated experience with kernel patching and debugging
  • Understanding of Linux kernel upstream processes and release cycle
  • Strong grasp of device drivers, BSP’s, and other low level system engineering
  • Professional written and spoken English 
  • Experience with Linux (Debian or Ubuntu preferred) 
  • Excellent interpersonal skills, curiosity, flexibility, and accountability 
  • Passion, thoughtfulness, and self-motivation 
  • Excellent communication and presentation skills 
  • Result-oriented, with a personal drive to meet commitments 
  • Ability to travel twice a year, for company events up to two weeks each

Additional skills that you might also bring

  • Python and Bash scripting
  • Prior experience with Ubuntu/Debian/Snap packaging
  • Performance engineering and security experience

What we offer you

We consider geographical location, experience, and performance in shaping compensation worldwide. We revisit compensation annually (and more often for graduates and associates) to ensure we recognise outstanding performance. In addition to base pay, we offer a performance-driven annual bonus. We provide all team members with additional benefits, which reflect our values and ideals. We balance our programs to meet local needs and ensure fairness globally.

  • 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
  • Employee Assistance Programme
  • Opportunity to travel to new locations to meet colleagues
  • Priority Pass, and 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. As the company that publishes Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud, we are changing the world on a daily basis. We recruit on a global basis and set a very high standard for people joining the company. We expect excellence - in order to succeed, we need to be the best at what we do. Canonical has been a remote-first company since its inception in 2004.​ Working here is a step into the future, and will challenge you to think differently, work smarter, learn new skills, and raise your game.

Canonical is an equal opportunity employer

We are proud to foster a workplace free from discrimination. Diversity of experience, perspectives, and background create a better work environment and better products. Whatever your identity, we will give your application fair consideration.

#LI-remote

Apply for this job

*

indicates a required field

Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Education

Select...
Select...
Select...
Select...
Select...
Select...

Universities around the world score degrees in different ways. Please indicate your result, or expected result if you are close to graduation, along with information about the grading system.

Select...
Select...

Please note that if you require any accommodation for travel that relates to a physical disability please do let us know during your hiring process and we will be happy to discuss your requirements further.

Select...
Select...

Please select your current location from the dropdown.

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Canonical’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.