Configuring, and implementing network infrastructure, ensuring scalability, reliability, and security. They install, configure, and maintain operating systems, servers, and software, while also implementing security measures like firewalls and encryption to protect data and systems. The role involves troubleshooting and providing technical support for network and system issues, monitoring performance to optimise efficiency, and documenting configurations and system setups. Additionally, they ensure business continuity through backup strategies and disaster recovery plans, collaborate with teams to integrate systems, and provide training on network use and security best practices.