Senior Linux Administrator

We are SIBS Romania. We operate in the area of financial services for banking and retail and we are passionate about simplifying daily life by innovating financial technology.

We believe that teamwork is a key element in achieving success, and we are proud to work with talented, persevering people who are not afraid to express their most creative ideas. We make a priority to ensure a workplace that drives, engages and retains them.

What makes SIBS a Great place to work?

Here are a few highlights:

• The team: you’ll work with team players that are smart & friendly and that really care about the work they do, and there are plenty of happy hours and team building events to connect outside work;
• The flexibility: SIBS creates an environment for people to integrate their work and life, by offering flexible working hours and the tools to work from home as needed;
• The growth and innovation: as part of a growing team, you’ll have lots of opportunities for career development and be exposed to the latest technologies due to our focus on innovation on the exciting and fast growing payments industry;
• The benefits: you’ll have access to a generous benefits package, like access to Bookster library, a top health insurance and competitive salaries with performance rewards.

Key Responsabilities:

• Administer, monitor, and support on-premises Linux systems (mainly RHEL, with occasional OEL).

• Perform system provisioning, patching, performance tuning, security hardening, and advanced troubleshooting.

• Automate system administration tasks using Ansible and related tools.

• Manage and maintain Red Hat Satellite, IDM, and other RHEL ecosystem components.

• Support virtualization environments, primarily VMware and KVM.

• Deploy, configure, and maintain Linux-based network and security services, including: DNS; Reverse proxy (Apache HTTP, NGINX, HAProxy); Forward proxy (Squid); Load balancers (HAProxy, Keepalived).

• Manage Linux infrastructure metrics and alert setup in monitoring solutions such as Zabbix and ELK.

• Support containerized environments using Podman and Docker; experience with Kubernetes is a strong plus.

• Collaborate with network teams to ensure secure and efficient operations; strong network infrastructure knowledge is essential.

Qualifications & Skills:

• 5+ years of experience in Linux systems administration, with focus on RHEL environments.

• Proven experience with automation tools, especially Ansible.

• Solid knowledge of VMware and KVM hypervisors.

• Strong understanding of networking fundamentals, including firewalls, routing, and VLANs.

• Experience managing enterprise-level monitoring and logging tools.

• Red Hat certifications (RHCSA, RHCE) are a plus.

*The company aligns with the principles of the EU Pay Transparency Directive and will provide candidates with the applicable salary range in writing prior to the first interview stage.