Senior Network Engineer, Cisco
Summary
Senior network engineer based in Central London (The City) who configures and manages Cisco and Palo Alto routers, switches, and security gear, and supports cloud networking on AWS (VPC, Direct Connect, Route 53). Core technologies: Cisco, Palo Alto, firewalls/IDS/IPS/VPN, AWS networking.
Salary: £40,000 - 70,000 per year
Requirements:- Experience configuring and managing Cisco and Palo Alto routers, switches, and other network hardware
- Strong understanding of networking concepts, protocols, and principles, such as TCP/IP and UDP
- Experience with network security technologies, such as firewalls, IDS/IPS, and VPNs
- Familiarity with cloud networking concepts and services, particularly AWS networking, such as VPC, Direct Connect, and Route 53
- Collaborative and pragmatic approach, with confidence working with clients
- Cisco Certified Network Associate (CCNA) or Cisco Certified Network Professional (CCNP) certification is beneficial
- Configure, deploy, and maintain network infrastructure, including Cisco routers, Palo Alto firewalls, and other network devices
- Troubleshoot network issues to minimise disruption and ensure reliable performance
- Collaborate with customer networking teams, stakeholders, and wider infrastructure teams to design, implement, and enhance network infrastructure and security measures, including firewalls, VPNs, and intrusion detection systems
- Monitor network performance, identify opportunities for improvement, and implement enhancements to strengthen efficiency, security, and resilience
- Contribute to increased infrastructure automation using IaC, Terraform, and Python scripting
- AWS
- Cloud
- Cisco
- Hardware
- Network
- Python
- Security
- TCP/IP
- Terraform
More:
We are a scaling technology company specialising in renewable energy storage and trading. This is a senior, hands-on Network Engineer role based in London, with a hybrid working model that allows you to work from home and join our team in the London office twice a week. We offer a salary of up to £75,000, 25 days of annual leave in addition to public holidays, flexible carry-over and a festive office closure, enhanced parental leave, an Employee Assistance Programme, and social and team events.
last updated 40 week of 2026