Ubuntu Linux Kernel Test Engineer

About This Opportunity

We are representing a confidential open-source software organization seeking an Ubuntu Linux Kernel Test Engineer for a remote role based in the APAC region (office-based in specific locations). Our client maintains one of the world's most widely deployed Linux distributions, supporting kernels across numerous versions, architectures, and configurations with long-term maintenance commitments.

This role focuses on ownership of kernel testing strategy and infrastructure at scale. You'll design comprehensive test plans, build automated frameworks for stress testing and regression detection, and ensure quality across more than 160 actively supported kernel versions.

Responsibilities

• Design, develop, and maintain comprehensive test plans covering functional correctness, stability, performance, and security for 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 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 with a globally distributed team
• Contribute to upstream test suites and testing frameworks
• Document test methodologies, results, and coverage gaps

What We're Looking For

Required qualifications:

• 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 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

Preferred qualifications:

• Familiarity with kernel fuzzing tools and techniques (syzkaller, Trinity, AFL, or custom harnesses)
• Experience with code coverage instrumentation (gcov, kcov, LLVM source-based coverage)
• Knowledge of kernel tracing and observability tools (ftrace, perf, bpftrace, eBPF)
• Familiarity with static analysis tools (sparse, smatch, Coccinelle) as part of a testing workflow
• Experience with fault injection frameworks for reliability testing
• Prior experience with test infrastructure at scale (provisioning, orchestration, result aggregation)
• Knowledge of virtualization technologies (KVM, QEMU) and container runtimes
• Cloud infrastructure experience (AWS, GCP, Azure, or OpenStack)
• Prior involvement with open-source testing communities or projects

How We Work With You

When you apply through Get A Job.ai, our talent team will review your background and conduct an initial screening. If there's a strong match, we'll submit your profile to our client for consideration. Please note that you should not contact the client directly—all communication flows through our recruiting team to ensure a smooth, professional process.

Pay

Compensation details will be discussed during the screening process and will depend on your location, experience, and skills. Our client offers a fully remote working environment, personal learning and development budget, annual compensation review, recognition rewards, generous holiday leave, parental leave, employee assistance program, and travel opportunities.

Equal Employment Opportunity: Get A Job.ai is committed to fair and equitable recruiting practices. We evaluate all candidates based on qualifications and merit, without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other protected characteristic.