For anyone who loves connectivity

Network Engineer (Administrator)

We have an opportunity for a Network Admin Engineer to work within a team responsible for the installation, management and service of Optimity’s ISP products. The role offers ownership & responsibility for building a robust network documentation process, managing alerts & reporting. You will be able to produce detailed technical HLD / LLD documentation of complex ISP & MSP network topologies and assist with network auditing, incident reports, proposals and 3rd tier ticket escalation.


You will be required to produce new and supplement existing high- & low-level documentation for existing large campus network environments through SME LAN network environments. You will be experienced across multi-vendor technologies and environments including typical Cisco & Juniper equipment, maintaining existing documentation and asset management platforms including IT Glue, RackTables & Continuum RMM.

This position will fit a Network Engineer with admin experience who wants to focus on networking design.


  • Experience with various network devices and services (routers, switches, firewalls, load balancers, VPN, QoS).
  • Maintain existing customer network documentation and update changes via change control procedure.
  • Assist the network team in the design and supply of up to date connectivity diagrams
  • Assist perform network maintenance and system upgrades including service packs, patches, hot fixes and security configurations.
  • Monitor alerts & performance and ensure system availability and reliability.
  • Monitor system resource utilisation, trending, and capacity planning.
  • Provide Tier 3 deep technical support and troubleshooting to resolve issues which may require onsite visits.
  • Work within established configuration and change management policies to ensure awareness, approval and success of changes made to the network infrastructure.
  • Select and implement design & technical drawing tools alongside existing SaaS solutions eg, IT Glue
  • Liaise with vendors and customer IT stakeholders to produce HLD and LLD documentation for new business proposals.
  • Perform onsite audits to scope and document existing and any planned infrastructure changes.
  • Highlight areas of concern, and ideas for improvement, when there is belief that systems or services could be impacted or improved.


  • Proven hands-on network engineering experience.
  • At least 2 years’ experience implementing network projects within an SME / ISP / MSP environment.
  • Current working knowledge of Cisco and Juniper technology (CCNA, CCNP, JNCIA, JNCIS certified). At least 1 years of demonstrable Cisco / Juniper experience is required.
  • Solid understanding of the OSI or TCP/IP model, MPLS/VPLS management and deployment.
  • Good experience in and strong knowledge of a range of network and network security platforms (JNCIS/CCNP level) on Platforms including: F5 Products including LTM / GTM, Juniper or Cisco ISP &
  • Enterprise Routing/Switching, Juniper or Cisco Security appliances.
  • Hands-on experience with monitoring, network diagnostic and network analytics tools.
  • University degree in Computer Science or a related subject.
  • Excellent time management and organisation.
  • ITIL Foundation & PRINCE2 highly desirable.

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