Senior Systems Administrator
hosting.com
Senior Systems Administrator
hosting.com
hosting.com · Sofia, Bulgaria (Hybrid) · Full-time · Posted 2026-09-24
Workplace: hybrid
About Us
We’ve got an incredible brand -- now we’re busy creating the legend behind it. At hosting.com, we’ve set out to redefine the new standard for what web hosting should be — one that is authentically human, deeply trusted, and built on shared success.
Our aim and promise is bold: to become the world’s most trusted hosting company. If you’re eager to contribute your time and talent to something bigger that people will talk about long after your work is done -- hosting.com is your place. If you want to do that work with and alongside incredible humans who care about each other, our customers and the work we do -- it’s at hosting.com. If you believe the best success is always shared success, with your teammates, for your customers -- hosting.com is your next work home.
At hosting.com, we’re not just hosting websites. Although we do a great job of that for millions of websites. We’re helping our customers tell their stories and connect with their people. Creating product experiences that helps them do that. Being there when they need us. And earning trust, day by day, by showing up and giving our best.
All because we care ... about each other’s success. Our team is 750+ strong and growing, spread across the globe. We can’t do this alone. Come join the journey. And help us build something better, together.
We are looking for an experienced Senior Systems Administrator with deep Linux expertise to join our global Infrastructure team.
This is a varied, hands-on technical role focused on managing, troubleshooting and improving Linux-based hosting infrastructure, including server deployment, infrastructure management, incident resolution, and the development of internal tools and systems that support our business and customers.
The role combines Site Reliability Engineering (SRE) principles with hands-on Linux systems administration and infrastructure operations, focusing on automation, system reliability, performance monitoring and continuous improvement.
You will also act as a subject-matter expert across areas such as web hosting technologies, virtualisation and hosting control panels like cPanel and Plesk, helping to improve the reliability, scalability, security and automation of our infrastructure.
Strong experience in systems automation, configuration management and server provisioning is essential, ideally using Ansible.
What You’ll Do
Apply Site Reliability Engineering (SRE) principles to improve infrastructure reliability, service availability, resilience and performance.
Manage virtualised environments using technologies such as KVM and Proxmox.
Develop and maintain automated configuration-management and server-provisioning solutions.
Build and improve internal tools and systems that support operational and business requirements.
Monitor infrastructure performance, availability and capacity, identifying and resolving issues proactively
Troubleshoot complex incidents across servers, databases, web services, networks and hosting-control panels.
Act as a subject-matter expert in one or more areas
Proactively maintain our systems - contribute to infrastructure improvements that enhance reliability, scalability, security and operational efficiency
Create and maintain clear technical documentation.
Collaborate effectively with Infrastructure, Support and other technical teams across the business.
Participate in an on-call rota where required.
What You’ll Bring
Understanding of Site Reliability Engineering (SRE) principles, including system reliability, monitoring, incident management, root-cause analysis and operational automation.
Bash scripting.
At least five years’ professional experience in Linux systems administration.
Virtualisation technologies, particularly KVM and Proxmox.
Configuration management, automation and server-provisioning tools, particularly Ansible; experience with AWX or Salt is also valuable.
Relational databases, particularly MariaDB and MySQL
Web servers, including Apache, LiteSpeed and/or NGINX.
Diagnosing and resolving complex technical and operational issues.
Strong attention to detail and a methodical approach to work.
Fluent written and spoken English, with the ability to communicate complex technical information clearly to both technical and non-technical colleagues.
Nice to Have / Preferred Qualifications
Container technologies such as Docker or Podman.
Programming or scripting using Python, PHP or Go.
Additional virtualisation technologies, such as Xen and Hyper-V.
Hardware and software RAID configuration and troubleshooting.
Windows systems administration, including IIS, Microsoft DNS and PowerShell.
Be part of a global, purpose-driven team building one of the world’s most trusted hosting companies
Fast-moving and agile environment — we are energetic, we hustle, and we move at pace
A culture that values ownership, accountability, and shared success
Be Pragmatic. Be Trusted. Be Energetic. Be Accountable. Be Respectful. Be Innovative.
At hosting.com, success is always shared — with our people, our customers, and our communities.
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