Linux Network Administrator

Company Affinity Health
Reference # 13/2018
Published 10/01/2018
Contract Type Permanent
Location Benoni, Gauteng, South Africa
Core Purpose

The Linux System Administrator is responsible for installing, configuring and maintaining the Linux servers and workstations, as well as maintaining the network environment, health of the network and servers. This vacancy is suitable for a focused individual who can assume ownership and accountability of the IT infrastructure. The nature of our business demands 24 hour system availability.
Job Functions Information Technology
Industries Information Technology
Key Role Outputs

a)Designs portions of solutions to test and evaluate systems, equipment, and devices
b)Monitor network performance and integrity
c)Resolve issues tiers of support that have escalated by troubleshooting networking infrastructure
d)Ensure optimal operations through daily checks and preventative measures
e)Ensure that the day to day functioning of I.T. systems is aligned to industry standards and is compliant with ISO guidelines
f)Create, oversee and test security measures, a good understanding of firewall rules and routing is essential
g)Communicate with users, management and 3rd party providers
h)Maintain complete and up to date technical documentation
i)Suggest improvements to network performance, capacity and scalability
j)Ensure backup solutions are in place and tested regularly, these solutions would encompass the company’s Disaster Recovery and Business Continuity plans
k)Maintain and update Licence Agreements
l)Compile and submit accurate reports and schedules
m)Work with the IT team to define and continually update hardware and software standards
n)Log all requests, problems and resolutions in ticket tracking system
o)Ensure to provide solutions by complying with the security standards of the company
p)Support the requests of the users and solve any problems related with the Linux servers and workstations
q)Assist in setting up and configuring new systems, installing and maintaining the application software and coordinating the networking connectivity
r)Remain updated with the current knowledge in Linux system, be responsible for evaluating the hardware and software technologies
s)Involved in designing, implementing, securing and maintaining the computer systems for its test, development and production environment
t)Identify and analyse the issues that hamper the performance of the system, work in close coordination with the product development team and recommend the solutions for issues
u)All the supporting tasks that are included, but not limited to code deployment, managing source control systems, virtual servers, scripting, etc.

v)Identify the discrepancies in the system, to assess the risks, and to implement solutions by adhering to the security standards
w)Assist in writing and modifying scripts for application deployments as well as system monitoring
x)Developing and overseeing the backup, replication, clustering and fail over strategies
y)Participate in various cross training activities, so as to achieve a comfort level that supports the database
z)Monitor the important services and servers, troubleshoot the server related issues and make sure that proper backup is provided for the network equipment configurations
aa)Maintain proper documentation of all the procedures, configurations, programs, etc.
bb)Provide the much needed customer support through e-mail, telephone, knowledge based programs and other resources
cc)Conduct security audits on a routine basis as well as plan and expand the current offerings related to services
dd)Provide technical expertise and deliver high quality services that would satisfy the customers

Mandatory Qualifications

b)N+ or equivalent

Advantageous Qualifications


Mandatory Experience/Exposure

a)4 Years industry-related experience as a Network Engineer or Network Administrator in a Linux environment
b)N+ or equivalent proven experience
c)Proven track record of implementing and maintaining a highly complex network environment
d)Have a good knowledge of Voice over IP systems
e)Trouble shoot network problems efficiently
f)Configuring switches, routers, VPM’s and firewalls
g)Risk assessment
h)Working knowledge of services, including Apache and MySQL, DNS, DHCP to support our development team
i)Experience or understanding of testing tools and software packages, Nagios, cacti, etc.
j)Basic understanding of material properties and hardware and electrical component design
k)A good knowledge of Network Technologies is essential, including DNS, DHCP, Firewall, VPN and switches

Advantageous Experience/Exposure

a)Experience with network diagnostic, monitoring and analysis tools
b)Asterisk, Vicidial telephony systems

Knowledge and Skills

a)Well-Developed planning and organising skills

b)Be able to manage own as well the team's work
c)Good analytical and problem-solving skills
d)Excellent written and verbal communication skills
e)Ability to work in complex, changing environments
f)Excellent time management skills in order to manage requirements regarding deliverables
g)Possess excellent interpersonal skills
h)Maintain excellent customer service skills
i)Ability to identify the system issues and solve them in an effective manner
j)Ability to respond to and prioritize the incoming work according to the stringent deadlines
k)Ability to follow the instructions given by his/her superior
l)Ability to perform well under pressure and meet deadlines
m)Ability to multi-task effectively

Desired attributes

b)Highly motivated
c)Detail oriented
e)Willingness to learn new things and apply the latest technologies that would help the organization to grow
f)Result orientated
Job Closing Date 09/02/2018
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