The primary responsibility of the Systems Administrator is providing support, monitoring and maintaining Linux infrastructures, applications and servers, for both internal and external stakeholders.

Grade 12 or equivalent certificate essential; postgraduate qualification preferable
Minimum 5 years’ experience as a Linux system administrator
Relevant qualification (A+, N+, MCSE, LINUX+/LPIC 1 and 2)
CCNA and Security+
• Competencies:
Excellent networking implementation and troubleshooting skills (TCP/IP)
Strong communication skills (verbal and written)
Excellent understanding of VOIP systems
Excellent understanding of IMAP and Postfix
Apache web server and PHP installation, maintenance, administration, and database systems (Postgresql, MySQL)
• Duties:
RSNAPSHOT and ZFS setup & maintenance for backups
RAID Setup and Management on physical machines
Maintaining a local APT & Custom software repository
VPN Connectivity
MySQL and Postgres Database Administration
Creating and maintaining office topologies diagrams (Gliffy, and Coggle).
Providing second and third line with documentation and guidance on problem solving and technical assistance.
Implementing and Maintaining Monitoring with templates (Zabbix)
Setting up and Maintaining Virtual Instances/Machines (LXC & KVM).
HaProxy Administration
Performing maintenance on DHCP. DNS (Bind), Proxy (Squid), Switches and Routers.
Working and Maintaining user backups (Delta Copy & Time Machine).
User management – Adding and removing users off LDAP, Vtiger, Samba.
Working with web services (Apache & Nginx).
General maintenance on physical servers within our offices.
Planning, designing, role out / Implementation of new systems.
Managing dedicated machines at Hetzner. (disk replacements, monitoring and etc).
BASH Scripting for automating tasks.
Making use of Ansible for rollouts to production for products in the field.
Following the traditional delivery process for products.
Offering support for the team in lower tiers.
Attending monthly director's meetings.
JIRA and OTRS Project Planning and Tickets Administration.
Working within Debian and Ubuntu based environments.
Research & Development on products for product development.
Working closely with Development in order to fix problems with products in the field.