1 to 25 of 45 Permanent Cisco ASA Jobs in London

day operations of network infrastructure (LAN, WAN, VPN, Firewalls, etc.) Respond to and resolve incidents, service requests, and escalations within SLA timelines. Configure, manage, and monitor network devices (Cisco, Juniper, Aruba, etc.) Assist with implementation of new network solutions and improvements. Collaborate with Level 3 engineers on complex troubleshooting and upgrades. Monitor network performance using tools (e.g., SolarWinds … Cisco routers, switches, and firewalls. Strong understanding of TCP/IP, routing protocols (BGP, OSPF, EIGRP), VLANs, and subnetting. Experience with enterprise-grade firewalls (Cisco ASA, Palo Alto, Fortinet). Familiarity with VPN technologies (IPSec, SSL VPN). Working knowledge of network monitoring and diagnostic tools. Excellent problem-solving and communication skills. Desirable (Preferred) Skills … technologies. Exposure to ITIL processes and working in secure government or defence environments. Experience with scripting for automation (Python, PowerShell). Skills: ospf,ipsec,palo alto,cisco asa,tcp/ip,network performance,infrastructure,eigrp,enterprise,dv,routing protocols,network monitoring,communication,juniper,network infrastructure,fortinet,diagnostic tools,lan,aruba,cisco,bgp,problem-solving,subnetting More ❯

and hybrid cloud environments. Configure and manage virtual networks, subnets, and security groups on cloud platforms e.g., Microsoft Azure. Implement and manage network security measures, including Checkpoint and Cisco Firewalls, Cloud Security, Site-to-Site VPNs, and remote access solutions. Maintain security best practices for cloud networking, ensuring data integrity, confidentiality, and availability. Provide technical support and guidance … layer 3 routing protocols such as OSPF, EIGRP, and BGP. Experience configuring and deploying Cisco hardware (Catalyst and Nexus) in enterprise settings. Experience with Cisco ASA firewalls and Checkpoint firewall appliances. Experience managing wireless devices and understanding wireless communications. Proficiency in network administration, monitoring, and troubleshooting using Cisco systems, including Cisco More ❯

network infrastructures. The Senior Network Engineer will also be an integral part in handling various networking functions including data center operations, security, and firewall management, leveraging expertise in Cisco and Palo Alto technologies. This role offers visibility across all levels of senior management and presents an exciting opportunity to join a rapidly growing, global IT services provider. The … for a Managed Services Provider (MSP). Responsibilities Design complex network solutions for new and existing client sites, relocations, upgrades, expansions, and disaster recovery, with a focus on Cisco core network requirements. Assist in designing, building, and configuring global network environments, demonstrating strong knowledge of data center technologies, and training peers in their application. Implement and maintain logical … Experience in network design architecture. Advanced routing and switching skills. Willingness to travel to client sites and data centers as needed. Experience with Palo Alto firewalls required; Fortigate and ASA experience is a plus. Experience in the financial services industry and MSP environment preferred. Strong understanding of routing, WAN/LAN, and transport technologies (Ethernet, SDWAN, VPN, DMVPN, MPLS More ❯

of new customer projects Technical Environment: Switching; Cisco, Meraki, Aruba, HP, Dell, Juniper Wireless; Cisco, Meraki, Aruba Security; Palo Alto, Prisma, Fortinet, Cisco ASA SD-WAN; Citrix, Viptela, Meraki, Fortinet, Nuage Cisco NAC ISE, SD-A/DNAC, DOT1x Cisco Nexus 7xxx, 5xxx, 2xxx series Knowledge and experience required … and scripting experience (python, bash scripting) Juniper platform configuration experience is ideal, SRX and EX series Firewall configuration experience is advantageous particularly with Fortigate, Palo Alto, Cisco ASA Experience with Alcatel SR & ESS Experience with using networking test tools such as Wireshark Our People Our people are what makes Exponential-e Group the company it is today. More ❯

URL filtering, and file blocking in addition to firewall rules. A working knowledge of the following network platforms - Cisco ISE, Cisco Firepower, Cisco ASA, Cisco Routers, Cisco Switches, Cisco Wireless Controller, HPE Aruba Switches, FortiGate Firewall, Palo Alto Firewall, Checkpoint Firewall. Experience with network diagnostic, monitoring and … analysis tools (e.g. Solarwinds, ManageEngine, DNAC). Hands-on experience with copper and fibre cabling. Solid understanding of network operating systems (Cisco IOS, Cisco IOS-XE, Cisco NX-OS, Aruba OS, FortiOS, etc). Ability to troubleshoot complex, technical, multi-site and multi-disciplinary problems and incidents. Experience working in a team-oriented, collaborative More ❯

network solutions and enhancements to existing network deployments, software, and operating systems You will diagnose problems and troubleshoot issues across a number of technologies such as Cisco ASA/Firepower, Palo Alto, HPE Aruba EdgeConnect, SD-WAN, Wired and Wireless LAN, along with some more traditional/legacy network solutions You will be a problem-solver, passionate … an ability to multitask and work under pressure Ability to prioritise workloads Networking certifications: CCNA as a minimum Hands on experience with some or al of the following: Cisco routing and switching, Cisco SD-WAN, Cisco Meraki, HPE Aruba wired and wireless LAN, HPE Aruba EdgeConnect (Silverpeak), VMWare SD-WAN, Palo Alto firewalls and More ❯

Qualifications: To be considered, you must either hold current SC Clearance or have lived in the UK continuously for the past five years to be eligible to apply. Cisco CCNA/CCNP level networking experience Project implementation and operations experience Network security expertise, including certificate management Strong experience in virtualisation … VMware) Proficiency in proactive monitoring tools (SolarWinds) Enthusiasm for learning and supporting engineering development activities Tech Stack: Cisco/HP Core & Edge Networking, Cisco Firewalls (ASA/Firepower), VPN Solutions, Fortinet, Meraki Secure application gateways/reverse proxies, DHCP, MPLS/VPLS, DNS (BIND & Microsoft), SIP/IP-PBX/SBC, Citrix VMware, SolarWinds PowerShell More ❯

edge design and implementation. If you would like to learn more about this opportunity, feel free to reach out and apply today! Responsibilities: Firewall migration projects (Cisco ASA and Firepower) Implement software-defined networks (NSX-T/ACI) Routing and Switching Network Delivery Deliver network transformation activities: onboarding, switching, wireless, firewall rollout Involvement in Juniper Mist deployments … cloud-managed services Opportunity to expand into Azure and broader public cloud security infrastructure Required Experience: Active or recent SC Clearance (must-have) Strong background with Cisco ASA, Firepower, NSX-T Bonus experience in: SD-WAN, Juniper Mist, Cisco ISE, Fortinet, Palo Alto, vulnerability management Confident communicator with a customer-first mindset Self-motivated, solution More ❯

Engineer who has proven experience in implementing, deploying, administering, and maintaining network infrastructure, including routers, switches, wireless solutions, and firewalls. In addition to this, you will be managing Cisco-based network security (firewalls, VPNs, NAC) for peak reliability and performance, in addition to the other responsibilities below! This is a project-focused role, so someone who has hands … projects like SGT's, Azure Networking, and ICE Posturing is highly desirable. Key Responsibilities: Manage and maintain Cisco Firepower, Cisco ISE and Cisco ASA Deploy and maintain network security infrastructure (routers, switches, firewalls, IDS/IPS). Manage Cisco-based systems, including firewalls, VPNs, and NAC. Assist with and manage Network … secure remote access and VPN solutions. Oversee PKI management and recommend security improvements. Collaborate with IT, Cybersecurity, and third-party vendors. What You'll Bring: Experience working on Cisco Firepower and Cisco ISE Experience working on Network Security Projects Proven experience with network infrastructure and security protocols. Familiarity with IDS/IPS, cloud security, and encryption More ❯

Azure/AWS). Key Responsibilities: Design and implement network and security solutions across hybrid environments Lead firewall, data center, and cloud migrations Configure and manage Cisco (ASA, Firepower, ISE, ACI), Palo Alto, Checkpoint Optimize routing (BGP, OSPF), Layer 2/3 switching , and SD-WAN deployments Ensure cloud and network security compliance with best practices What More ❯

of the industrys best and will have the opportunity to learn from colleagues holding CCIE and VCDX level certifications. You will gain exposure (if not already having) to Cisco FTD, ISE, ACI & Catalyst, VM Ware NSX-T, Palo Alto NGFW and Juniper Mist amongst other technologies, working across a blend of interesting projects in both the public and … private sectors. Technology Partners Cisco/Meraki VM Ware Palo Alto Fortinet Juniper Aruba/HPE Microsoft AWS Role Snapshot As Senior Network Security Engineer you be an integral member of the delivery and migrations team. The role will entail assisting with migrations, day-to-day delivery tasks and providing ongoing support as a trusted advisor to the … monitoring. SDDC (Software Defined Datacentre) - Virtualised datacentre functions such as Cisco ACI, VMware NSX and Virtualised firewalling. Cisco Technologies, in particular Cisco firewalling (ASA/FTD), Cisco ISE and any experience with other emerging Cisco technologies and products. Capable or understanding and operating advanced switching and routing environments. Firewalling More ❯

Job Description Job Overview: We are seeking an experienced Senior Network Engineer with deep expertise in Cisco ACI, SDN technologies, and broader traditional networking and security solutions. The successful candidate will be responsible for the design, implementation, automation, and operational support of complex network infrastructures, ensuring high availability and performance across our environment. Only candidates with active SC … of Cisco ACI SDN and MSO environments. Provide operational support and troubleshooting for Cisco networking and security appliances including Nexus, Catalyst switches, and Firepower/ASA firewalls. Design, implement, and optimize wireless networks and load balancing solutions (F5 BigIP, BigIQ). Manage campus networking environments, firewall security, and network monitoring solutions. Utilize automation tools like … to continuous process improvement initiatives. Collaborate cross-functionally with infrastructure, security, and application teams. Minimum Qualifications: Active SC Clearance (mandatory). Deep knowledge and hands-on experience with Cisco ACI SDN and MSO (development and operations). Certification in Cisco networking (minimum CCNP level) or equivalent industry experience. Proven experience with traditional Cisco networking More ❯

SM, PIM-SSM, IGMP, MVPN, MLDP. Hands-on experience with F5 BIG-IP (LTM, GTM, etc.). Strong background in firewall administration and security: Palo Alto, Cisco ASA, CheckPoint, or similar platforms. Proficient with network packet analysis and troubleshooting using packet capture tools. Experience with Data Centre and SDN technologies: Cisco ACI, VxLAN, and related More ❯

our Core Infrastructure Support (CIS) team within Network Operations The team is responsible for providing 3rd Line support for the platforms within our control with a focus on Cisco, Fortinet and F5 technologies . (We are looking for candidates with at least 2 of these core technologies) You will be responsible and accountable for supporting the Core Data … be your authentic self throughout your application journey with us. The must haves Extensive experience in supporting Data Centre network infrastructure, Cisco (Nexus Fixed and Modular , ASR, ASA, Firepower, ISR, Catalyst), F5 (LTM, GTM, AFM, AWAF) and Fortinet. Operating, configuring and troubleshooting NXOS, IOS XE/XR, F5 TMOS operating systems, FortiOS Strong understanding of the majority … limited to TCP/IP, Routing, L2/L3 Switching and the OSI model. Certifications or suitable real-world experience to cover one or more of the below: Cisco, CCNP Data Centre , Cisco CCNP Security F5 Technical Certified Technical Specialist in one or more tracks, LTM, DNS, ASM or APM Fortinet NSE Certifications in one or More ❯

We are looking for a skilled Network Security Engineer with expertise in Cisco technologies to join our team in Seattle, WA. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect our organization's data and systems from cyber threats. Key Responsibilities: - Design, implement, and maintain network security measures … s degree in Computer Science, Engineering, or related field - 3+ years of experience in network security engineering - Strong expertise in Cisco networking technologies, including Cisco ASA, Firepower, and ISE - Experience with network security protocols and tools, such as VLANs, IPSec, and SSL VPN - Certifications such as CCNA Security, CCNP Security, or CISSP are a plus More ❯

Get AI-powered advice on this job and more exclusive features. We are looking for a skilled Network Security Engineer with expertise in Cisco technologies to join our team in Seattle, WA. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect our organization's data and systems from … s degree in Computer Science, Engineering, or related field - 3+ years of experience in network security engineering - Strong expertise in Cisco networking technologies, including Cisco ASA, Firepower, and ISE - Experience with network security protocols and tools, such as VLANs, IPSec, and SSL VPN - Certifications such as CCNA Security, CCNP Security, or CISSP are a plus More ❯

NX-OS, IOS Cisco ACI Cisco ISE Cisco Meraki VLAN’s, High availability Multicast Firewalls; Palo Alto, CheckPoint and Cisco ASA F5 BigIP Tetration Maintaining and monitoring network performance Troubleshooting a multi-protocol system network Managing Cisco routing and switching Network security Administration Maintaining and where necessary creating More ❯

NX-OS, IOS Cisco ACI Cisco ISE Cisco Meraki VLAN's, High availability Multicast Firewalls; Palo Alto, CheckPoint and Cisco ASA F5 BigIP Tetration Maintaining and monitoring network performance Troubleshooting a multi-protocol system network Managing Cisco routing and switching Network security Administration Maintaining and where necessary creating More ❯

Hiring: CCIE Network Architect Location: Must be based in the United Kingdom Are you a visionary network expert with a CCIE certification and deep hands-on experience in Cisco Network Security ? We're looking for an experienced Network Architect to lead the design, implementation, and optimization of secure, enterprise-scale network infrastructures. What You … ll Do: Architect and implement secure network solutions across data centers, cloud, and branch environments Lead strategic network transformation projects, focusing on Cisco-based security technologies (Firepower, ASA, ISE, Umbrella, etc.) Develop network security policies, best practices, and high-availability solutions Perform risk analysis, vulnerability assessments, and network hardening Collaborate with cross-functional teams to align network … architecture with business goals What We’re Looking For: CCIE (Security or Enterprise Infrastructure) – active certification required 6+ years of hands-on experience with Cisco routing, switching, firewalls, VPNs, and threat defense Deep understanding of Cisco ISE , Firepower Threat Defense (FTD) , and AAA frameworks Experience designing segmented networks and implementing Zero Trust principles Strong analytical, documentation More ❯

high-level support and remedial work once the projects are completed. The ideal is someone at CCNP level from a LAN Enterprise background with high level skills in firewalling – ASA’s, Firepower, ISE and if you have NSX-T then that would be great – however the NSX-T will be taught if you don’t. You will have great … around Datacentres or Azure Networking would be a nice to have Key Skills: Must be SC Cleared, or capable of gaining SC Clearance - Not negotiable CCNP LAN Enterprise Firewalls – ASA, Firepower, ISE – any other vendors are welcome NSX-T – not essential (full training available) ACI, Azure Networking - Nice to have This role requires a proactive, diligent and resilient personality More ❯

high-level support and remedial work once the projects are completed. The ideal is someone at CCNP level from a LAN Enterprise background with high level skills in firewalling – ASA’s, Firepower, ISE and if you have NSX-T then that would be great – however the NSX-T will be taught if you don’t. You will have great … around Datacentres or Azure Networking would be a nice to have Key Skills: Must be SC Cleared, or capable of gaining SC Clearance - Not negotiable CCNP LAN Enterprise Firewalls – ASA, Firepower, ISE – any other vendors are welcome NSX-T – not essential (full training available) ACI, Azure Networking - Nice to have This role requires a proactive, diligent and resilient personality More ❯

high-level support and remedial work once the projects are completed. The ideal is someone at CCNP level from a LAN Enterprise background with high level skills in firewalling – ASA’s, Firepower, ISE and if you have NSX-T then that would be great – however the NSX-T will be taught if you don’t. You will have great … around Datacentres or Azure Networking would be a nice to have Key Skills: Must be SC Cleared, or capable of gaining SC Clearance - Not negotiable CCNP LAN Enterprise Firewalls – ASA, Firepower, ISE – any other vendors are welcome NSX-T – not essential (full training available) ACI, Azure Networking - Nice to have This role requires a proactive, diligent and resilient personality More ❯

Job Title: Network Security Engineer Location: Seattle, WA Job Description: We are looking for a skilled Network Security Engineer with expertise in Cisco technologies to join our team in Seattle, WA. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect our organization's data and systems from cyber … s degree in Computer Science, Engineering, or related field - 3+ years of experience in network security engineering - Strong expertise in Cisco networking technologies, including Cisco ASA, Firepower, and ISE - Experience with network security protocols and tools, such as VLANs, IPSec, and SSL VPN - Certifications such as CCNA Security, CCNP Security, or CISSP are a plus More ❯

Job Title: Network Security Engineer Location: Seattle, WA Job Description: We are looking for a skilled Network Security Engineer with expertise in Cisco technologies to join our team in Seattle, WA. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect our organization's data and systems from cyber … s degree in Computer Science, Engineering, or related field - 3+ years of experience in network security engineering - Strong expertise in Cisco networking technologies, including Cisco ASA, Firepower, and ISE - Experience with network security protocols and tools, such as VLANs, IPSec, and SSL VPN - Certifications such as CCNA Security, CCNP Security, or CISSP are a plus More ❯

Posted: 16.06.2025 Expiry Date: 31.07.2025 Job Description: Job Title: Network Security Engineer Location: London, UK We are looking for a skilled Network Security Engineer with expertise in Cisco technologies to join our team in London, UK. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect our organization's … s degree in Computer Science, Engineering, or related field 3+ years of experience in network security engineering Strong expertise in Cisco networking technologies, including Cisco ASA, Firepower, and ISE Experience with network security protocols and tools, such as VLANs, IPSec, and SSL VPN Certifications such as CCNA Security, CCNP Security, or CISSP are a plus More ❯