Remote Linux Administrator (open source)

We are hiring an IT Infrastructure Admin to start immediately for a full service consulting firm in Murrieta, CA. This is a fully remote position Salary is up to 85k/year on W2 (no C2C or 1099 or Sponsorship Or VISA transfer) We need someone whose Linux background is rooted in open source environments rather than enterprise distributions like RHEL or SUSE. A strong command of the Linux ecosystem - package management, system tuning, scripting, troubleshooting at a low level In Addition, hands on experience with Docker (containerization, image management, compose workflows) and Caddy (reverse proxy configuration, HTTPS automation) would be important differentiators. These are the tools we are using, so familiarity with them will shorten the ramp up time significantly Need to know how to build open source applications for a particular need and need to know how to troubleshoot Docker IT Infrastructure Administrator About the Role We are seeking a hands-on IT Infrastructure Administrator to support and maintain our customer-facing services, applications, servers, and network environments. This role is responsible for resolving escalated technical issues from the Service Desk and partnering with support, engineering, and end users to ensure reliable system performance. The ideal candidate has experience across both on-prem and cloud environments and is passionate about continuously improving systems and expanding their technical expertise. What You'll Do Systems & Infrastructure Administer and support Linux-based server environments (command line), including: Red Hat / CentOS derivatives Ubuntu Amazon Linux Automate routine system maintenance tasks using scripting and cron jobs Containerization & Cloud Technologies Manage and troubleshoot containerized environments, including: Docker Swarm Kubernetes Portainer Support deployments across both on-premises and cloud platforms Networking & Security Configure and manage network infrastructure: VLANs and IP addressing NAT (public/private routing) Load balancers and Web Application Firewalls (WAFs) Tune security policies to reduce false positives while maintaining strong protection Web Hosting & DNS Manage and troubleshoot DNS and public-facing service configurations: Email authentication (DMARC, DKIM, SPF) DNS records (A, CNAME, Alias) Domain registrar and nameserver configuration DNSSEC Support hosting platforms such as cPanel, Windows IIS, and WordPress Multisite Support & Operations Serve as an escalation point within an ITIL-based service desk environment Diagnose and resolve issues by effectively engaging with both technical and non-technical users Monitor system health, uptime, and performance across infrastructure and applications Provision and maintain physical and virtual systems and network components Prioritize and manage support tickets and project work efficiently Documentation & Compliance Create and maintain technical documentation, knowledge base articles, and runbooks Support compliance initiatives (PCI, HIPAA), including audits and remediation activities What We're Looking For Strong problem-solving skills with the ability to work independently and proactively Excellent communication skills, with the ability to explain technical issues to non-technical audiences Ability to prioritize work, make sound decisions, and operate effectively in a fast-paced environment A continuous improvement mindset with a focus on enhancing systems and processes Nice to Have Experience in a SaaS or web hosting environment Experience supporting distributed or hybrid teams at scale All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance.