Senior Linux Systems Admin

CacheFly

Job Overview

Location

Remote

Employment Type

Full-time

Work Arrangement

Remote

Sector

Information Technology & Software

Experience Level

Senior (5-8 years)

Application Deadline

June 19, 2026

About the Company

At CacheFly, we are at the forefront of transforming the digital landscape, providing robust and innovative content delivery network (CDN) solutions that empower businesses across the globe. Our dedication to excellence, innovation, and customer satisfaction has solidified our position as a leader in the technology sector.

Founded in 2002, CacheFly is a premium private CDN built for companies where performance, reliability, and control are paramount. We serve global media platforms, gaming companies, ad tech, and video-on-demand services, ensuring fast, flawless, and scalable content delivery.

We operate with a lean, focused team of builders and problem-solvers, fostering a culture of autonomy and direct impact. As a privately held and financially strong company, we prioritize long-term investments in our people, technology, and customers, maintaining a startup mindset of curiosity and rapid evolution.

Job Description

CacheFly is a leader in transforming the digital landscape with robust and innovative content delivery network (CDN) solutions. We empower businesses globally through our dedication to excellence, innovation, and customer satisfaction.

As a Senior Linux Systems Administrator, you will be instrumental in building, maintaining, and optimizing critical aspects of our global CDN. Your role will involve ensuring minimal latency, highest availability, and maximum throughput, working closely with other administrators and architects to enhance our infrastructure.

Key responsibilities include monitoring and maintaining Linux servers, deploying and automating new systems, and providing high-level technical support. You will own specific CDN components, improve documentation, and contribute to automation through DevOps principles. Mentoring junior team members is also a vital part of this role.

To apply for this role, click the Apply button on this page and follow the instructions.

Required Skills

LinuxSystem AdministrationCDNVarnishNginxAnsibleScripting LanguagesTCP/IPHTTP ProtocolWAFDDoS

Key Responsibilities

Monitor and maintain virtual and physical Linux servers, ensuring system performance and availability.
Deploy new systems, improve and automate the system deployment process.
Provide technical support and troubleshooting assistance for system issues, working closely with other teams and customers.
Own certain aspects of the CDN, ensuring they operate at the highest level of performance and availability.
Improve infrastructure and customer documentation, update processes and procedures to ensure effective knowledge management and transfer.
Improve automation by adopting DevOps principles and contributing to various internal configuration management tools and projects.
Mentor and assist other system engineers and architects.

Qualifications

Availability for weekday shifts and occasional weekend coverage.
CDN experience
Expert-level Linux administration experience, including optimizing Linux services, drivers and the kernel.
Knowledge of network and routing protocols (TCP/IP, UDP, BGP, tunneling, etc.)
Deep understanding of the HTTP protocol(s) and the ability to troubleshoot any HTTP or network related issues
Deep understanding of Varnish, Nginx, HAProxy bird/quagga, Linux firewalls, scripting languages
Strong problem-solving skills and the ability to work independently.
Excellent communication and collaboration skills, with a focus on providing high-quality customer service.
Security experience with WAF, DDOs, etc. is preferable.

Benefits & Perks

People-First Culture; While we’re obsessed with performance, we’re also deeply committed to taking care of our people through fair compensation, competitive global benefits, and a culture of mutual respect and authenticity.
Competitive pay and annual bonus (15% target).
Cutting-edge technology and resources to help you succeed in your role.
Remote-first culture.
Unlimited PTO and all National Holidays off.
$3,000 annual work-from-home stipend, monthly internet/phone or coworking allowance

How to Apply

To apply for this role, click the Apply button on this page and follow the instructions.

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The digital landscape is rapidly evolving, with content delivery networks (CDNs) playing a pivotal role in global connectivity. CacheFly is at the forefront, offering robust CDN solutions that empower businesses worldwide. This Senior Linux Systems Administrator role is crucial for maintaining and optimizing our global CDN infrastructure, ensuring peak performance and availability. You will be instrumental in building, deploying, and automating systems, providing high-level technical support, and owning key aspects of our CDN operations. Your contributions will directly impact business ROI by enhancing system throughput and minimizing latency, solidifying CacheFly's leadership in the technology sector.