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
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, F5 load balancing, Infoblox DNS/DHCP/IPAM, and cloud networking in AWS, Azure, and/or GCP.
- 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 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.
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
About the company
the company is a global digital transformation solutions provider. For more than 20 years, the company has worked side by side with the world's best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, the company partners with its clients from design to operation. With deep domain expertise and a future proof philosophy, the company embeds innovation and agility into its clients' organizations. With over 30,000 employees in 30 countries, the company builds for boundless impact-touching billions of lives in the process.