UST
Senior Network Engineer_Cloud, Security & Infra (Architect II - Cloud Infrastructure Services)
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Role 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.
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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.
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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
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#UST
Skills
cloud network, network architecture, cisco aci, firewall engineering, vlan, azure arc, cisco asa, dns administration, wide area network, f5 load balancer, virtual private network, switching protocols
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