Senior Linux Administrator

With over 25 years of experience on the Romanian HR market, PROHUMAN APT (former APT Resources & Services) is the one of the biggest players in the industry, a force concentration evenly deployed across different specialties. Having approximate 4000 employees (mostly higher educated) in BPO and temporary work assignments, as of 2021, PROHUMAN APT ranks in the Top 3 HR providers in Romania.

You must have the drive to develop high-quality processes that will run in an unusually complex
technical environment. You will be a member of our operations team, where your skills and
contributions to manage our solutions and supporting tools will be very visible. You must love to
help team members and to receive help from them. The team is international so you will use English
both written and orally.

• Excellent oral and written communication skills;
• English proficiency
• Ability to work on-call in production environments;
• Master’s or bachelor’s degree in Computer Science (at least 3 years of relevant work
experience in a similar role);
• Solid Linux/Unix knowledge and experience in system administration;
• RHEL Certified Systems Engineer and ITIL certification is a plus
• Linux performance tuning & troubleshooting, identifying and resolving contention in
CPU, memory, networking, disk I/O
• Linux system administration (packages, users, ACLs, resource management, securing base
installations, discovering basic hardware issues, ...)
• Experience with command-line tools (AWK, sed, grep, ...) and one or more scripting
languages (Bash, Perl, Python, ...)
• Understanding of TCP/IP, firewalls, and an overview of load balancing clusters
• Strong troubleshooting and problem-solving skills
• Commitment to quality
• Strong ability to work independently as well as with highly cross-functional teams;
• Good understanding of DNS, email, web servers, databases
• Understanding and usage of IT tools such as BSA/Flexera/Nagios/monitoring tools;
• Experience in working with hypervisors (VMWare, Xen, KVM) – an advantage
• Ansible, Chef, Puppet Automation tools – an advantage;
• SELinux – an advantage;
• Ansible knowledge is a big plus
• Pacemaker/Redhat cluster knowledge it’s a plus
• Nagios monitoring implementation/configuration
• Experience with SuSE is a plus
• Storage management OS Part: Create/Extend filesystems, SAN,EMC,ISCSI, add/extend
new disks, multipath, Logical Volume Manager, Partition
• Networking: Configure Interfaces, Bonding, Add routes, NFS, Samba

Tasks

• Install, configure, test and patch operating systems including security packages;
• Work with different internal teams to understand product domains and address
documentation/training needs;
• Maintain and grow a production environment in a way that makes the system increasingly
maintainable;
• Participate in support for production issues and upgrades, and pre-production installations at
varying levels;
• Monitor services that are provided to customers;
• Work to resolve a running queue of system related support tickets and debug complex
problems as they arise.
• Available for Oncall activities -standby support outside business hours
• Available for maintenances, some of them planned outside business hours