Linux Systems Administrator

Linux Systems Administrator

Linux
Networking
Virtualization
Automation
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How would it be like to work as a Linux System Administrator with us?

The Linux System Administrator is the technical lead for Linux infrastructure projects within the IT Production team and an active contributor to day-to-day IT operations. You will provide Level 2 support for Linux environments managed by GTS for its customers, alongside installing, configuring and maintaining those systems.

You will combine hands-on, day-to-day Level 2 operational support with Linux infrastructure project work, from analysis and solution design through implementation and continuous improvement. You will collaborate with Service Delivery and the Network Operations Center, work directly with customers, and contribute your expertise to reliable and secure infrastructure.

  • Provide day-to-day Level 2 support as part of IT Operations, resolving and coordinating Linux-related incidents, Service Requests and Change Requests through their lifecycle.
  • Lead or contribute to Linux infrastructure projects, including requirements analysis, design, implementation and service transition.
  • Install, configure, administer and troubleshoot Linux servers and related services in customer environments.
  • Improve performance, availability, capacity and operational reliability; investigate incidents and provide expert escalation support.
  • Automate service implementation and infrastructure monitoring using appropriate scripting and configuration practices.
  • Maintain operating systems and installed software, apply security updates, and implement hardening in line with security best practices and customer requirements.
  • Create and maintain clear technical documentation, operating procedures and service records.
  • Work with customers and internal teams on technical decisions, redesigns and service improvements; contribute to pre-sales discussions when needed.

How do we picture you?

You have hands-on Linux systems administration experience and can support production environments independently. You are comfortable diagnosing issues across operating systems, services, networking and infrastructure.

Core technical skills:

  • Linux administration across distributions such as Red Hat Enterprise Linux, CentOS, Ubuntu, Debian and SUSE.
  • Linux security hardening, patching and secure configuration; Linux firewall administration using tools such as nftables, firewalld or iptables.
  • Web server administration with Nginx and Apache HTTP Server.
  • Administration and troubleshooting of MySQL and PostgreSQL databases running on Linux.
  • Container technologies: Docker and Kubernetes (K8s), including deployment and operational troubleshooting.
  • Virtualization platforms: VMware and Proxmox VE.
  • WHM/cPanel administration.

Technical experience:

You will work across a broad range of Linux services and customer environments.

Additional infrastructure and services

  • Storage: RAID, LVM, NFS, CIFS/SMB and iSCSI.
  • High availability and load balancing: HAProxy, Corosync and Pacemaker.
  • DNS services such as BIND and PowerDNS; familiarity with other DNS implementations is useful.
  • Mail services such as Postfix, Exim, Sendmail, Qmail, Dovecot or Courier.
  • File transfer and remote access services such as vsftpd, Pure-FTPd, OpenVPN and SSH.
  • Core protocols and services including DHCP, TFTP, NTP, DNS, HTTP, FTP, SMTP, POP3 and IMAP.

Useful experience:

  • Scripting and automation with Bash, Python or Perl.
  • Experience with additional hosting control panels such as Plesk or Virtualmin.
  • Exposure to other hypervisors or virtualization technologies such as KVM or Xen.

How you work:

  • You are organized, detail-oriented and able to prioritize competing tasks in a fast-paced environment.
  • You communicate clearly and build effective working relationships with customers and colleagues.
  • You enjoy analysis and troubleshooting, take ownership of outcomes, and keep learning as technologies evolve.
  • Last but not least, you are fluent in English 😊.

YOUR GTS BENEFITS

GTS has always grown through its people. Each of us matters: we work together, we share the outcomes of our success and we are there for each other in all moments of life.

Flexible benefits budget

You have the opportunity to choose what better suits your needs.

Trainings

So that you are always updated and know what should be expected in your area of expertise.

Company paid certifications

We are here to support you in every step you take for your professional development.

Advance salaries

We know that sometimes you need to be rewarded beforehand for your work…

Medical subscriptions

You can trust that, when necessary, you know who to rely on, without spending time searching.

Aid in case of passing away

No one should go through the hardest times alone…

Birth aid

Your joy is also ours!

Referral bonus

A person you have recommended got the job? You get a bonus!

Fruits in the office.

A day in the office is more cheerful if we add … color, energy and vitamins!

Christmas gift

“Santa GTS’s” bag is always full, and the reindeers never miss their way to us!

Easter gift.

We are a cheerful and united team: how could we not have… a “GTS Easter bunny”?

Children’s gift for June 1st

We know how much you want your kids to be happy!

Bookster

Ai mereu la îndemână o carte bună, sau mai multe, pentru momentele în care vrei să te oprești puțin și să cauți inspirație.

Masaj la birou

O pauză scurtă care face diferența. Pentru zilele în care tensiunea se adună și ai nevoie de un restart rapid.

Loyalty vacation days

Cu cât rămâi mai mult alături de noi, cu atât ai mai mult timp pentru tine. Zile în plus de concediu, pe măsura implicării tale.

APPLY FOR THIS JOB

If you are interested in this position please fill in the form and send your CV.

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