Job Description

Job Summary

An exciting opportunity has become for a Senior Systems Engineer in Durban. The ideal candidate would manage, maintain, support and upgrade ISP, Client Servers and Network Infrastructure.

Key Responsibilities

• Maintenance of our ISP network and hosting environment, including mail, DNS, firewall, web and all virtual server environments.
• Effective involvement in projects and the rollout of solutions to clients.
• Managing the integrity of the network, server deployment, and security.
• Provide technical support in terms of hardware, software, systems and administration
• Provide after-hours support on rotation with the team
• Create, oversee and test security measures (e.g. access authentication and disaster recovery)
• Build and document network management and telemetry road maps for infrastructure and services
• Integrate network management platforms into the Microsoft cloud for new and existing technologies
• Experience in workload deployments to public clouds: Amazon, Azure, etc
• Architecture and design of fault tolerant systems

Essential competencies

• Advanced server systems administration (Linux/Unix)
• Advanced networking - routing, switching, firewalling and general IP networking experience
• Advanced DNS administration
• VMware, HyperV, ESXi and related
• A minimum of 5 years' experience installing, maintaining, and supporting a corporate/ISP infrastructure environment.
• A minimum of 5 years' working experience as an IT support technician and directly supporting end-users, both face-to-face and remotely
• A minimum of 5 years' experience installing, maintaining and supporting corporate network environments (LAN & WAN)
• VPN and WAN setup/support
• Indepth understanding of BGP, OSPF, MPLS, VOIP, VPN
• CCNA/CCNP (or equivalent)
• SAN/NAS technologies

Advantageous skills

• Mail server experience (Postfix, Sendmail, Exim, Antispam/Antivirus, DNSBL, SMTP protocol & general mail routing)
• Wireless networking
• LAMP stack
• Mikrotik
• BGP, OSPF, MPLS, VOIP, VPN
• PHP & WordPress admin
• Veeam
• Fortinet
• Microsoft Office 365 and Azure experience
• Experience with helpdesk ticketing systems such as OTRS, Zendesk & osTicket, Heat, Remedy, etc.
• Microsoft certifications, including MCSA-O365 and MS900/MD101/MS101/MS500
• Microsoft Azure certifications in AZ103/AZ300/AZ500

Tower Group

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