Computer Network and Systems Engineers plan, develop, deploy, test and optimise network and system services, taking responsibility for configuration management and overall operational readiness of network systems, especially environments with multiple operating systems and configurations, and provide troubleshooting and fault-finding services for network problems.
You usually need a bachelor or postgraduate degree in a related information technology field (such as computer science, network engineering or computer systems) to work as a Computer Network and Systems Engineer. Training may also be available through Vocational Education and Training (VET). There are also a wide range of vendor and industry certifications available that may substitute for formal qualifications and can be highly regarded by employers.