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Freelance Linux Kernel Developer Jobs in Pennsylvania

FreedomPay

Sr. Systems Engineer

Philadelphia, PA · Hybrid

$105K - $144K/yr

Collaborate with network, security, and application DevOps teams to design, deploy, and maintain ... Experience with containerization and Linux operating systems a plus * Ability to work independently ...

FreedomPay

Sr. Systems Engineer

Philadelphia, PA · Hybrid

$105K - $144K/yr

Collaborate with network, security, and application DevOps teams to design, deploy, and maintain ... Experience with containerization and Linux operating systems a plus * Ability to work independently ...

FreedomPay

Sr. Systems Engineer

Philadelphia, PA · On-site

$105K - $144K/yr

Collaborate with network, security, and application DevOps teams to design, deploy, and maintain ... Experience with containerization and Linux operating systems a plus * Ability to work independently ...

Glydways

Senior Embedded Software Engineer

Pittsburgh, PA · On-site

$120K - $157K/yr

... Linux with pthreads, QNX, VxWorks, or RTEMS). * Experience with MCU bootloaders, device drivers ... Familiarity with kernel internals and low-level OS concepts. * Experience with deterministic timing ...

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Freelance Linux Kernel Developer information

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.

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 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 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 most commonly searched types of Linux Kernel Developer jobs in Pennsylvania?

The most popular types of Linux Kernel Developer jobs in Pennsylvania are:

What are popular job titles related to Freelance Linux Kernel Developer jobs in Pennsylvania?

For Freelance Linux Kernel Developer jobs in Pennsylvania, the most frequently searched job titles are:

What job categories do people searching Freelance Linux Kernel Developer jobs in Pennsylvania look for?

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

What cities in Pennsylvania are hiring for Freelance Linux Kernel Developer jobs?

Cities in Pennsylvania with the most Freelance Linux Kernel Developer job openings:

Freelance Linux Kernel Developer jobs near you

Sr. Systems Engineer

FreedomPay

Philadelphia, PA • Hybrid

$105K - $144K/yr

Full-time

Re-posted 11 days ago

Job description

The FreedomPay Commerce Platform is the technology of choice for many of the largest companies across the globe in retail, hospitality, lodging, gaming, sports and entertainment, foodservice, education, healthcare and financial services.  FreedomPay’s technology has been purposely built to deliver rock solid performance in the highly complex environment of global commerce. The company maintains a world-class security environment and was first to earn the coveted validation by the PCI Security Standards Council against Point-to-Point Encryption with EMV standard in North America. FreedomPay’s robust solutions across payments, security, identity and data analytics are available in-store, online and on-mobile and are supported by rapid API adoption. The award winning FreedomPay Commerce Platform operates on a single, unified technology stack across multiple continents allowing enterprises to deliver a consistent, repeatable experience on a global scale.  FreedomPay is a fast paced, high growth company with a great culture with competitive benefits and compensation with a business casual atmosphere.

 

FreedomPay is looking for a Senior Systems Engineer who has extensive experience with hypervisors, virtual machines, and hybrid cloud data center environments. You will be responsible for designing, implementing, and maintaining on‑premises data center infrastructure such as physical and virtual compute, load balancers, operating systems, and related hardware.

  • This position participates in an engineering escalation on‑call rotation.
  • This position is a hybrid role, with occasional on‑site work in the Philadelphia area (must be currently local to Philadelphia, relocation assistance not available)
 
Primary Responsibilities:
  • Design, deploy, and manage enterprise hypervisor environments, including Broadcom vSphere ESXi, across multiple data centers
  • Build, configure, and support Windows Servers across physical, virtual, and cloud platforms
  • Maintain hardware and bare metal lifecycles by continuously reviewing and applying firmware and hypervisor updates
  • Respond on‑site to data center incidents, including routine visits for preventive or standard maintenance
  • Develop and maintain diagrams, runbooks, infrastructure documentation, and disaster recovery playbooks
  • Collaborate with network, security, and application DevOps teams to design, deploy, and maintain cohesive, integrated solutions
  • Drive continuous improvement in monitoring, alerting, and capacity planning
Qualifications:
  • Bachelor’s or Master’s degree in computer science, engineering, MIS, or a related field; or relative hands-on experience demonstrating advanced proficiency in the field
  • 5+ years of proven expertise with Broadcom (VMware) vSphere, ESXi, and vCenter at scale
  • 5+ years of hands-on experience with bare metal servers including the remote management, firmware and hardware updates, and advanced configuration management using tools such as intelligent Lights Out (iLO) and OneView
  • Advanced troubleshooting of hypervisor and virtual machine performance including the ability to review kernel, device, and operating system metrics and an ability to make informed decisions based on key performance indicators
  • Expert‑level administration of Windows servers, Active Directory, DNS, and related services such as NTP, GPO, and PKI
  • Advanced understanding of physical networking infrastructure, and firewalls including TCP/IP, UDP, VLAN, firewall rules; an ability to communicate systems connectivity requirements
  • Proficient with physical and virtual load balancers, F5 experience a plus
  • Proficient with cloud computing environments such as Azure or AWS
  • Excellent communication, collaboration, and problem‑solving skills
  • Proficient with scripting languages and automation tools including the use of AI
  • Experience with monitoring and logging tools
  • Experience with change control processes
  • Experience with containerization and Linux operating systems a plus
  • Ability to work independently and as part of a team
  • Certifications with Microsoft and Broadcom/VMware are a plus
As the fastest growing commerce company in the industry, we offer the opportunity for tremendous upward mobility within the company as well as development and professional growth opportunities. FreedomPay's fulltime roles provide exceptional benefits including medical, prescription, dental and vision coverage, Life Insurance, Retirement Plans with company match, commission sharing plan, flexible hybrid working environment, and great parental and other leave programs. All positions must be able to successfully pass a background check as well as a credit check.
 
FreedomPay is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.