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# Network Engineering Specialist

- **Company:** Datasource
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** Border Gateway Protocol, Cloud Computing Security, Computer Networks, DevOps, Internet Protocol, Internet Protocol Security (IP SEC), Intrusion Detection Systems, Network Security, Network Architecture, Routing, Network Virtualization, Open Shortest Path First (OSPF), Ansible, Wide Area Networks, In-Plane Switching (IPS), Firewalls (Computer Science), Puppet, Terraform, Open Network Automation Platform, Cisco, Vmware
- **Published:** August 17, 2026
- **Apply:** https://www.efinancialcareers.com/jobs-United_Kingdom-London-Network_Engineering_Specialist.id24474522

## About the Role

principles, ideally with VMware NSX. * Experience with network automation and Infrastructure-as-Code tooling such as Ansible, Terraform, Puppet or Chef. * Transferable automation experience with Cisco DNA Centre. * Experience working in a DevOps environment alongside software and infrastructure teams. * Relevant industry certifications such as CCNP, CCIE or equivalent. * Our clients offer a range of benefits for permanent workers, as well as an excellent salary you will receive the following: Annual bonus up to 10%. Pension up to 5% Employee/10% Employer. Private Medical Cover. Dental Insurance. Health Assessment. Life Assurance. Our client is committed to providing a diverse and inclusive workplace and welcomes applications from all backgrounds. Part-time opportunities/flexible working is available to suit individual needs. RECOMMEND A FRIEND: If you have professional friends/colleagues who would be interested in one of our roles and our excellent
levels of service too, we'd like to recognise your recommendations with a 'thank you' of our own. For every friend you refer who then starts a role through Datasource either Contract or Permanent, we will send you £200 of Love to Shop Gift Vouchers & gift your friend £100 in Love to Shop Gift Vouchers as well! You will be required to hold a minimum of DV Clearance. If you do not hold an active DV Clearance, please familiarise yourself with the vetting process before applying. (c) Copyright Datasource Computer Employment Limited 2026.

## Description

Exposure to SD-WAN, automation tooling like Ansible or Terraform, and third-line support for complex IP networks will put you right at the front of the queue. You'll also need to hold or be eligible for DV clearance, so that's a must. Sound like you? APPLY TODAY and let's talk. Working Patterns and location - Fully on site Key responsibilities * Design, build, test and maintain all network infrastructure components end-to-end. * Implement new and enhanced network technologies aligned to customers' strategic connectivity goals. * Manage installation and configuration of physical and virtual network hardware including firewalls and routers. * Drive implementation of core and cloud infrastructure security to manage risk and exposure. * Contribute to technology lifecycle planning and network health assessments and roadmaps. * Deliver documentation, knowledge transfer and training to support new solutions into operations. * Mentor junior engineering professionals and act as a technical
resource for the wider team. * Champion emerging trends and keep the team current on developments in network engineering. Skills & experience * Experience with enterprise and operator-scale routing protocols including OSPF, BGP, IS-IS, LDP or RSVP. * Strong knowledge of LAN switching including RSTP/MSTP, LAG, MC-LAG and first-hop resilience protocols. * Experience implementing network security including MACSEC, IPSEC and 802.1x. * Knowledge of network security design including firewall, IDS and IPS configuration and management. * Experience designing, building and providing third-line support for complex, resilient IP networks. * Experience integrating networks and management software in on-premise environments. * Strong documentation skills with careful attention to change management processes. * Strong communication skills with the ability to engage technical teams and senior customers alike. Additional benefits * Exposure to Software Defined Networking


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