Freelance Linux Kernel Development Jobs in Wallingford, PA

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.