Senior Remote Linux System Administrator Jobs in Phoenix, AZ

Job Description:
At Sparklight/Cableone and our family of brands, we keep our customers and associates connected to what matters most. For our associates, that means: a thriving and rewarding career, respect for the communities where they live and work, a focus on health and wellness, an excellent work/life balance, and an open and inclusive workplace.
We are open to hiring remote if we find the right talent in any of the following states: AL, AR, AZ, FL, GA, IA, ID, IL, IN, KS, LA, MD, MO, MS, NC, ND, NE, NM, NV, OR, OK, PA, SC, SD, TN, TX, UT.
You will be responsible for deploying, upgrading, and maintaining the High-Speed Data (HSD) infrastructure that supports critical Internet services. This role combines day-to-day administration and troubleshooting with project-based work focused on analysis, design, development, and testing of new and existing technologies.
You will manage vendor solutions supporting core platforms such as DNS, DHCP, and DOCSIS provisioning while ensuring compliance with security policies and maintaining high system availability. Success in this role requires advanced Linux (CentOS/RHEL) expertise, strong scripting and automation skills, and a solid understanding of network security best practices.
This position offers the opportunity to directly impact the reliability and performance of HSD platforms by blending operational excellence with innovative engineering solutions.
Keywords: Automation, BASH, Docker, Python, Scripting, Kentik, Ansible, Linux, CentOS, RHEL, NMS, Infoblox, DNS, DDNS, SIP, IPAM, SolarWinds, BlueCat, AI, LLM, Calix, PON, Calix, DOCSIS, Incognito, NetBrain, ServiceNow, Cisco ISE
What you will do to contribute to the company's success
Assist in designing, implement, and maintain systems core network systems such as products and solutions by Incognito, Infoblox and Calix along with other technologies to support and maintain the organization's systems, infrastructure and data to include:
Performs implementation of new software as it relates to Engineering technologies and projects.

• Maintains the lifecycle management environment for all HSD applications
• Assists with upgrades to technologies that rely upon backend applications
• Assists with the creation of Low-Level Design (LLD) documentation for configuration templates, method of procedures, application diagrams, knowledge base articles, bill of materials and support documentation.
• Conducts training for new technology integration, technology upgrades, new product design, and implementation to relevant Cable One team members.
• Analyzes project requests to estimate time and cost.
• Works as part of a project team to determine requirements, risks, and limitations for each project scope.
• Performs on-call duties, customer equipment escalations, and overnight network changes as assigned.
• Configure, manage and troubleshoot Linux systems, DOCSIS provisioning, DNS and DHCP configuration, Authentication, Access Policies, and others to ensure optimal network performance, security, and connectivity.
• Utilize Python, Ansible, or other scripting and programming tools, together with strong Linux administration skills to automate tasks, troubleshoot issues, and optimization.
• Respond to requests escalated to HSD Systems Engineering Team and Perform on-call duties as assigned, being a technical point of contact for team.

Education and/or Experience
Bachelor's degree in computer science, Information Security, Management Information Systems (MIS), or Computer Information Systems (CIS) from an accredited four-year institution.
Bachelor's degree (B. A.) from four-year college or university preferred; and minimum two years related progressive experience in a network engineering role required.
Previous working background in an MSO (Multiple System Operators) in the cable industry preferred.
Technical Experience
Linux Administration: 6+ years hands-on experience managing CentOS or RHEL environments.
Automation & Scripting: Proficiency with Shell, Python, Perl, Docker, and/or Ansible for system automation and orchestration.
Network Engineering: 4+ years designing, deploying, and operating high-availability corporate and telecommunications networks.
Network Skills: Demonstrated expertise in advanced troubleshooting and in applying industry-standard network-security best practices.
Preferred Certifications
CCIE - Cisco Certified Internetwork Expert
CISSP - Certified Information Systems Security Professional
RHCSA - Red Hat Certified System Administrator
RHCE - Red Hat Certified Engineer
CCSE - Check Point Certified Security Expert
NSE 7+ - Fortinet Network Security Expert (level 7 or higher)
F5-CTS - F5 Certified Technology Specialist
Certificates, Licenses, Registrations
Red Hat Certified System Administrator (RHCSA)
Red Hat Certified Engineer (RHCE)
Cisco Certified Network Administrator (CCNA)
Associate-level networking certification required.
Professional-level networking certification preferred.
Other Qualifications

• Must be flexible and able to work on-call outside business hours.
• Position will require up to 10% travel.
• Application design and implementation project experience in one or more of the following areas preferred - DHCP, DNS, NTP
• Experience with the following vendor products preferred: Incognito, Infoblox
• Experience with IPv4, IPv6, DHCP, DNS, Docker, LDAP, and other relevant technologies and/or standards preferred.
• Proficiency in networking essentials.
• Ability to manage vendor relationships.
• Ability to troubleshoot escalated issues in relation to applications.

Core Competencies

• Committed: Values each customer, while working hard to keep their business and support our communities.
• Helpful: Delivers support in the ways that are most useful to our customers and addresses their needs with expertise, respect, and empathy.
• Proactive: Understand what our customers need, and actively works to make their relationship with use seamless, easy, and rewarding.
• Personal: Knows our customers well, and tailors our communications and interactions to address their needs and expectations.

Benefits
Cable One and our family of brands appreciates the role our associates play to help the company grow, and in return an excellent benefits package is offered to our associates to recognize the importance of their contributions, such as:

• Medical, dental, and vision plans - start when you start!
• Life insurance (self, spouse, children)

• Paid time off (vacation, holiday, and personal/sick days)
• 401(k) - 100% company match starts day 1 of employment (up to 5% of eligible compensation)
• Group Legal plan with Identity Theft Protection

Additional Perks

• Tuition reimbursement (up to $5,250 on 1st year)
• Annual community support to various organizations across the U.S.
• Associate recognition & awards programs
• Advancement opportunities
• Collaborative work environment

• FREE Cable One services for associates who live in a serviceable area

Our Commitment
Diversity lies in the communities we serve and among the associates who dedicate themselves to ensure our continued success. Here at Cable One and our family of brands, we believe it is our individual and unique talents, backgrounds and perspectives that, when combined, truly make us an unstoppable force. "Stronger Together" is not just a verbal cue, it is the motto that our associates live by, exemplify, and embody each and every day.
Cable One and our family of brands is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to, among other things, race, color, religion, sex, sexual orientation, gender identity, national origin, age, status as a protected veteran, or disability.
Pre-hire Processes
Cable One and our family of brands is committed to keeping our associates and customers safe. Job offers are contingent upon the results of background, drug screening, and reference check. Only after successfully passing these pre-hire clearances are individuals approved for hire and ready to start their successful and rewarding career.