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Freelance Linux Kernel Developer Jobs (NOW HIRING)

Deep knowledge of Linux kernel internals -- memory management, scheduler, networking, storage subsystems and/or device drivers * Strong C programming skills; fluency in kernel development workflow ...

Linux kernel development experience with emphasis on the network stack and its interfaces is highly desirable e.g. * Programming experience at the sockets layer, protocol layer, device layer and ...

In this role, you'll be improving and debugging the RISC-V Linux kernel, with particular focus on ... And you'll work with hardware architects and engineers, both inside SiFive and at RISC-V ...

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Freelance Linux Kernel Developer information

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$101K

$149.1K

$176K

How much do freelance linux kernel developer jobs pay per year?

As of Aug 22, 2026, the average yearly pay for freelance linux kernel developer in the United States is $149,062.00, according to ZipRecruiter salary data. Most workers in this role earn between $136,500.00 and $165,000.00 per year, depending on experience, location, and employer.

What does a freelance Linux kernel developer do?

A Freelance Linux Kernel Developer specializes in writing, modifying, and maintaining the core of the Linux operating system, often for clients or companies on a project basis. Their responsibilities include debugging kernel code, developing new features, optimizing performance, and ensuring compatibility with hardware and software. Freelancers in this field work independently, offering their expertise to organizations that need custom Linux kernel solutions or support. They typically need strong programming skills in C, in-depth knowledge of operating systems, and experience with open-source collaboration.

What are the key skills and qualifications needed to thrive as a freelance Linux kernel developer?

To thrive as a Freelance Linux Kernel Developer, you need deep expertise in C programming, operating systems concepts, and a strong understanding of Linux internals, often supported by a relevant computer science degree or equivalent experience. Familiarity with version control systems (like Git), kernel debugging tools (such as GDB, perf), and contributing to open-source repositories is typically required. Strong problem-solving skills, self-motivation, and clear written communication help developers stand out when collaborating remotely and engaging with the open-source community. These competencies are crucial for efficiently delivering robust kernel solutions and maintaining high standards in a distributed, collaborative environment.

What are some common challenges faced by freelance Linux kernel developers when working with diverse client codebases?

Freelance Linux Kernel Developers often work with a variety of client codebases, which can present challenges such as adapting to different kernel versions, understanding custom modifications, and ensuring compatibility with client-specific hardware. Navigating disparate documentation and collaborating remotely with in-house teams also requires strong communication and problem-solving skills. Staying up-to-date with upstream kernel changes and maintaining high code quality are essential to deliver reliable, maintainable solutions for each project.

What is the difference between Freelance Linux Kernel Developer vs Linux Device Driver Developer?

AspectFreelance Linux Kernel DeveloperLinux Device Driver Developer
CredentialsExperience with Linux kernel development, possibly certifications in Linux or C programmingSimilar credentials, often with specialized knowledge in device driver development
Work EnvironmentFreelance projects, remote work, client-based assignmentsIn-house or freelance, focused on hardware-specific driver development
Industry UsageTechnology companies, startups, open-source projectsHardware manufacturers, embedded systems, specialized tech firms
Search & Comparison IntentLooking for freelance Linux kernel work or collaborationSeeking expertise in developing or maintaining device drivers

The main difference is that a Freelance Linux Kernel Developer works on overall kernel development projects on a freelance basis, while a Linux Device Driver Developer specializes in creating and maintaining drivers for specific hardware components. Both roles require similar technical skills and credentials, but their focus areas and work environments differ.

More about Freelance Linux Kernel Developer jobs

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Cities with the most Freelance Linux Kernel Developer job openings:

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What states have the most Freelance Linux Kernel Developer jobs?

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The top searched job categories for Freelance Linux Kernel Developer jobs are:

Infographic showing various Freelance Linux Kernel Developer job openings in the United States as of August 2026, with employment types broken down into 82% Full Time, 2% Part Time, and 16% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $149,062 per year, or $71.7 per hour.

Linux Kernel & Containerization Subject Matter Expert

Maximum Technology Corporation

Huntsville, AL โ€ข On-site

Full-time

Retirement, PTO

Re-posted 16 days ago


Job description

Maximum Technology Corporation is a small business in Huntsville, AL. MTC that focuses on providing DoD customers with efficient, cost-effective and innovative solutions in data management, software engineering, system engineering, test and evaluation support, information technology, and information system security.
We are seeking a motivated Linux Kernel and Containerization Subject Matter Expert (SME) that can work with a diverse team to monitor, update, and support THAAD Hardware-in-the-loop (HWIL), Digital and simulation labs. Seeking a candidate with a strong background in containerization, Linux, Kernels, software development and security. Knowledge with a configuration management focus is a plus. Must be able to work in a team environment. This lab supports the THAAD weapons system.
Travel of up to 20% is required for this position.
Responsibilities:
  • Kernel & OS Engineering: Serve as the SME for Linux kernel customization. Install, configure, and maintain system hardware/software across RHEL 7-10 environments.
  • Infrastructure Management: Design, develop, and maintain highly scalable, resilient container infrastructures and Cloud Development Environments (CDE)
  • Administer container orchestration clusters within strict air-gapped/classified environments requiring Multi-Factor Authentication (MFA)
  • Automate Operating System builds and support the full lifecycle management of containerized applications.
  • Work directly with existing codebases, contribute improvements, and adapt solutions to overcome constraints within legacy systems.
  • Expert knowledge in container technologies
  • Demonstrated ability to design and maintain scalable, resilient container infrastructure.
  • Proficiency in one or more programming languages
  • Provide troubleshooting support for hardware and software
  • Manage user accounts on classified systems using multi-factor authentication.
  • Oversee the implementation of container solutions within a Linux operating system

Job Requirements:
  • Secret Clearance
  • Associate's or Bachelor's Degree in Computer Science, a related field, or equivalent experience.
  • 6+ years related experience.
  • Excellent communication skills both oral and written
  • Ability to adapt and thrive in a dynamic, customer focused work environment
  • Must have Linux+ and Security+ certifications
  • Advanced knowledge of RHEL (7-10) OS automation, and Linux kernel customization.

Benefits: Stable work environment, competitive salary & benefits package, 401k Matching Program, Flexible Work Schedules, Tuition Reimbursement, Paid Leave & more
EOE disability/vets
This position is contingent upon successful completion of a comprehensive criminal background check and government security investigation.