Remote Linux Kernel Quality Engineer

ATOM; United States; Remoto; USD 120.000 - 180.000; Tempo pieno

Vantaggi offerti da questo lavoro

Remote-first company

Learning & development budget

Annual compensation review

Travel opportunities

Descrizione del lavoro

Canonical is seeking a Test Engineer to own kernel testing strategy and infrastructure for Ubuntu kernels. You will design test plans, build scalable automated frameworks, and collaborate with a globally distributed team to ensure reliability across years of maintenance and multiple kernel versions.

The role emphasizes Python proficiency, Linux kernel internals, and long-term test suite maintenance, with remote work options and opportunities to travel for company events.

Competenze

• Significant programming experience in Python.
• Experience with test frameworks such as LTP, kselftest, xfstests, stress-ng, fio, or similar.
• Experience designing and executing system-level tests: functional, stress, performance, or regression testing.
• Familiarity with CI/CD systems (Jenkins, GitHub CI, or similar).
• Experience maintaining test suites over long periods, adapting to evolving software across multiple supported versions.
• Familiarity with Linux (Ubuntu or Debian preferred but not required), Linux kernel internals and subsystems.
• Experience with Linux systems administration and automation.
• Solid background with git.
• Well-organized, self-starting and able to deliver to fixed schedules.
• Professional written and spoken English with excellent communication skills.
• Ability to travel twice a year, for company events up to two weeks each.

Mansioni

• Design, develop, and maintain comprehensive test plans covering functional correctness, stability, performance, and security for Ubuntu Linux kernels.
• Build and improve automated test infrastructure for continuous kernel quality validation across multiple kernel versions and architectures.
• Maintain long-lived test suites that evolve alongside Ubuntu’s many concurrently supported kernel versions spanning years of maintenance.
• Develop and maintain CI/CD pipelines for continuous kernel quality validation.
• Conduct performance benchmarking and regression detection across kernel releases.
• Measure and improve kernel code coverage, identifying gaps in test coverage and creating tests to address them.
• Execute and analyze stress tests covering CPU scheduling, memory management, I/O subsystems, networking, and filesystem workloads.
• Develop and maintain fuzzing harnesses to discover kernel vulnerabilities and reliability issues using tools such as syzkaller, Trinity, or custom fuzzers.
• Collaborate regularly and proactively with a globally distributed team.
• Contribute to upstream test suites and testing frameworks.
• Document test methodologies, results, and coverage gaps.

Conoscenze

Python

Linux kernel

Test frameworks

CI/CD

Git

Strumenti

syzkaller

Trinity

xfstests

stress-ng

fio

Descrizione del lavoro

Canonical is seeking a Test Engineer to own kernel testing strategy and infrastructure for Ubuntu kernels. You will design test plans, build scalable automated frameworks, and collaborate with a globally distributed team to ensure reliability across years of maintenance and multiple kernel versions.

The role emphasizes Python proficiency, Linux kernel internals, and long-term test suite maintenance, with remote work options and opportunities to travel for company events.