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Senior Network EngineerUST • City of London, London, United Kingdom
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Senior Network Engineer

Senior Network Engineer

UST • City of London, London, United Kingdom
13 days ago
Job type
  • Permanent
  • Temporary
Job description

Senior Network Engineer – Cloud, Security & Infrastructure

Location: London (Hybrid)

Employment Type: Permanent / Fixed-Term Contract

Start Date: ASAP


Build, Secure and Transform Enterprise Networks


We're seeking a highly skilled Senior Network Engineer to join a growing technology team responsible for designing, securing, and optimizing enterprise and cloud network infrastructure across a complex, global environment.


This is an opportunity to lead the delivery of modern networking and security solutions, working across cloud platforms, next-generation firewalls, automation technologies, and compliance initiatives. You'll play a critical role in ensuring our network infrastructure remains secure, resilient, scalable, and future-ready.


If you're passionate about solving complex technical challenges, driving operational excellence, and working with leading technologies, we'd love to hear from you.


What You'll Be Doing:


Network & Cloud Infrastructure

  • Design, implement, and support enterprise and cloud networking solutions across AWS, Azure, and GCP.
  • Manage and optimize routing and switching environments using technologies including BGP, OSPF, EIGRP, VLANs, STP, QoS, and Multicast.
  • Administer and enhance F5 Load Balancers (LTM, GTM, ASM) to deliver high availability and performance.
  • Manage Infoblox DNS, DHCP, and IPAM services to support efficient network operations.


Security, Compliance & Risk Management

  • Configure and manage security policies across Palo Alto, Check Point, Cisco ASA, and ForeScout platforms.
  • Support the implementation of Zero Trust Architecture, micro-segmentation, VPNs, and secure access solutions.
  • Lead network patching, firmware upgrades, vulnerability remediation, and security hardening activities.
  • Ensure compliance with industry standards and frameworks, including ISO 27001, NIST, CIS Benchmarks, and PCI-DSS.
  • Partner with Cyber Security teams to identify risks, strengthen controls, and enhance enterprise security posture.


Performance, Reliability & Automation

  • Monitor, troubleshoot, and optimize enterprise, cloud, and security infrastructure.
  • Resolve complex LAN, WAN, cloud, and firewall issues to maintain business continuity.
  • Drive automation and operational efficiency using tools such as Python, Ansible, Terraform, and PowerShell.
  • Create and maintain technical documentation, network diagrams, security standards, and operational procedures.
  • Mentor engineers and contribute to continuous improvement initiatives across the wider technology team.


What We're Looking For:


  • Minimum of 8+ years' experience in Network Engineering, Cloud Networking, and Network Security.
  • Strong expertise across:

Cisco Networking & Routing/Switching

  • Palo Alto, Check Point, Cisco ASA, and ForeScout
  • F5 Load Balancing
  • Infoblox DNS/DHCP/IPAM
  • AWS, Azure, and/or GCP Networking
  • Hands-on experience with vulnerability management, patching, firmware upgrades, and compliance controls.
  • Strong understanding of network security principles, Zero Trust Architecture, SD-WAN, and micro-segmentation.
  • Experience with Infrastructure as Code (IaC) and network automation.
  • Excellent troubleshooting, stakeholder engagement, and communication skills.
  • Experience working in complex enterprise or multi-cloud environments.


Desirable Experience:


  • SIEM, IDS/IPS, and endpoint security integration.
  • Network monitoring and observability tools such as SolarWinds, LogicMonitor, Splunk, BigPanda, or Wireshark.
  • Container and Kubernetes networking concepts.

Relevant certifications such as:

  • CCNP / CCIE
  • PCNSE
  • CCSA / CCSE
  • F5-CA
  • AWS or Azure Networking Speciality
  • CISSP


Hurry & apply!


#UST

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Senior Network Engineer • City of London, London, United Kingdom

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