1 to 25 of 56 Cisco IOS Jobs

taking ownership of network projects from initial design and implementation through to migration, troubleshooting and ongoing support. At the heart of the environment are Cisco Nexus, Cisco ASR, Fortinet and BGP , so you'll need to be technically strong across these technologies rather than simply having supported them … datacentre network infrastructure. Manage core routing, peering, transit and edge connectivity. Design, configure and troubleshoot BGP , including peering and route policies. Configure and support Cisco Nexus datacentre switching environments. Configure and support Cisco ASR service-provider and edge routing. Manage multi-customer firewall environments using FortiGate and FortiManager ...

maintaining accurate patch records, under the direction of L2 engineers. KEY RESPONSIBILITIES Co-ordinate and track network device firmware/software patching activities (Cisco IOS/IOS-XE, Juniper JunOS, Aruba, Palo Alto) as per approved change records. Perform pre-patch tasks: verify device backups, confirm maintenance … patch compliance reports for the network estate. TECHNICAL SKILLS & KNOWLEDGE Basic understanding of networking fundamentals: OSI model, IP addressing, VLANs, routing basics. Familiarity with Cisco IOS CLI commands (show version, copy commands, reload). Awareness of device backup processes (TFTP/SCP configuration backups). Basic knowledge ...

maintaining accurate patch records, under the direction of L2 engineers. KEY RESPONSIBILITIES • Co-ordinate and track network device firmware/software patching activities (Cisco IOS/IOS-XE, Juniper JunOS, Aruba, Palo Alto) as per approved change records. • Perform pre-patch tasks: verify device backups, confirm maintenance … patch compliance reports for the network estate. TECHNICAL SKILLS & KNOWLEDGE • Basic understanding of networking fundamentals: OSI model, IP addressing, VLANs, routing basics. • Familiarity with Cisco IOS CLI commands (show version, copy commands, reload). • Awareness of device backup processes (TFTP/SCP configuration backups). • Basic knowledge ...

programme teams to deliver robust and resilient solutions. Ensure architectures align with Defence security standards and operational requirements. Essential experience Strong experience with core Cisco networking technologies, including: Routing & Switching Cisco ASA Firewalls Cisco ACI Cisco IOS & NX-OS Wireless Networking Good knowledge of network … associated infrastructure technologies. Knowledge of architecture and project delivery frameworks such as TOGAF and PRINCE2. Familiarity with SIEM technologies and wider network security tooling. Cisco Unified Communications and/or Asterisk PABX experience. Experience with cloud technologies including Microsoft Azure, AWS and Microsoft 365. To learn more, please ...

network patching practices. KEY RESPONSIBILITIES Manage the firmware/software lifecycle for routers, switches, firewalls, load balancers, and wireless controllers across multi-vendor environments (Cisco, Juniper, Aruba, Palo Alto, F5, Fortinet). Assess vendor advisories (Cisco PSIRT, Juniper JSA, Palo Alto Security Advisories) and map CVEs to required … runbooks including pre-check scripts, upgrade procedures, rollback steps, and post-validation checks. Automate network patch workflows using Ansible, Netmiko, NAPALM, or vendor APIs (Cisco NSO/DNA Centre). Lead maintenance window planning: impact analysis, rollback testing, stakeholder communication, and CAB submission. Oversee configuration backup integrity (RANCID/ ...

network patching practices. KEY RESPONSIBILITIES • Manage the firmware/software lifecycle for routers, switches, firewalls, load balancers, and wireless controllers across multi-vendor environments (Cisco, Juniper, Aruba, Palo Alto, F5, Fortinet). • Assess vendor advisories (Cisco PSIRT, Juniper JSA, Palo Alto Security Advisories) and map CVEs to required … runbooks including pre-check scripts, upgrade procedures, rollback steps, and post-validation checks. • Automate network patch workflows using Ansible, Netmiko, NAPALM, or vendor APIs (Cisco NSO/DNA Centre). • Lead maintenance window planning: impact analysis, rollback testing, stakeholder communication, and CAB submission. • Oversee configuration backup integrity (RANCID/ ...

Lead the design and hands-on implementation of complex network and security solutions Create professional HLDs, LLDs, implementation plans and operational runbooks Work across Cisco, Juniper, Fortinet and F5 technologies Design and troubleshoot Cisco ACI environments, including spine/leaf, multi-site and multi-pod Engineer advanced … experienced Network/Security specialist with a proven track record delivering complex enterprise or service-provider environments. You should have: Strong Cisco ACI experience Advanced routing & switching expertise Strong network security experience Multi-vendor implementation experience Proven HLD/LLD and technical documentation skills Strong stakeholder and client-facing ...

EIGRP VLAN, STP/RSTP/MSTP, vPC/LACP and QoS VXLAN, GRE and IPsec Enterprise and service-provider environments Cisco ACI, including spine-leaf architecture and multi-pod/multi-site Network Security Next-Generation Firewall design and implementation IPsec, SSL/TLS and SD-WAN security … management Compliance-aligned network security Application Delivery L4/L7 load balancing SSL offloading Global Server Load Balancing (GSLB) High-availability architectures Vendor Technologies Cisco IOS/IOS-XE/IOS-XR/NX-OS, ASA, Firepower, ISE, Catalyst Center and ACI Juniper JunOS ...

technical expertise in TCP/IP, routing protocols (BGP, OSPF, EIGRP), LAN/WAN, MPLS, VPNs, SD-WAN, firewalls, and network segmentation. Experience managing Cisco and Juniper network technologies, including Cisco IOS/NX-OS and JunOS platforms. Strong background in network monitoring, capacity management, and incident … response . Hands-on experience with network security frameworks , firewall configuration (Cisco ASA, Palo Alto, Fortinet, etc.) , and telephony (SIP/VoIP) systems. Familiarity with cloud and hybrid networking (Azure, AWS, GCP) environments preferred. Strong understanding of ISO 27001, PCI-DSS , and ITIL-aligned service delivery processes. Leadership & Soft ...

/LAN infrastructure, packet-capture software, the TCP/IP protocol stack, routing/switching protocols, stateful firewalls, and L3/L4 access controls. Cisco IOS, CatOS, NxOS, filtering and access control, CiscoWorks, TACACS+, ASA, FWSM, HP OpenView, Cisco routers and switches, F5/Cisco load … five (5) years without, in LAN network engineering, architecture, monitoring, security, and protection. Datacenter network design and architecture experience, including installation and configuration of Cisco routers, switches, firewalls, and IPsec virtual private networks. ...

mission-critical enterprise and public sector customers with strict UK Data Sovereignty mandates. We serve as the vital bridge connecting sovereign customer environments with Cisco’s global technical ecosystem and worldwide TAC. Operating at the forefront of network engineering, high-stakes incident management, data governance, and AI-driven support … regulatory compliance.Your ImpactAs a Senior Network Support Engineer, you will act as the primary interface for customers with UK Data Sovereignty concerns into global Cisco support services. In this high-impact role, you will analyse and de-sensitise critical customer network data to safely route complex issues ...

mission-critical enterprise and public sector customers with strict UK Data Sovereignty mandates. We serve as the vital bridge connecting sovereign customer environments with Cisco’s global technical ecosystem and worldwide TAC. Operating at the forefront of network engineering, high-stakes incident management, data governance, and AI-driven support … Your Impact As a Senior Network Support Engineer, you will act as the primary interface for customers with UK Data Sovereignty concerns into global Cisco support services. In this high-impact role, you will analyse and de-sensitise critical customer network data to safely route complex issues ...

Role: Cisco Network & Security Engineer (Cisco ISE & Wireless) Length: 6 month Contract Day Rate: £475 Inside IR35 Location and working model: Hybrid working 3 days onsite - (Harlow) SC Clearance - Essential We're supporting a leading defence organisation in the search for an experienced Cisco Network & Security Engineer … contractor, with strong expertise across Cisco ISE, Catalyst 9800 Wireless, and Enterprise Networking. Candidates must have SC Clearance, and be able to work in a hybrid working arrangement up to 3 days in the office. Key Skills Required Strong networking fundamentals (TCP/IP, OSI, VLANs, DHCP ...

start time: 6:30 a.m.My client is based in LondonHFT Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization; KVM, VirtualBox, BGP, OSPF, VRRP, HSRP Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash ...

propel your career forward.My client is based in LondonHFT Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization; KVM, VirtualBox, BGP, OSPF, VRRP, HSRP Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash ...

/Other) • Apache/OpenSSL • Bash/Python • OpenLDAP • Virtualisation • Citrix • VMware: ESX, Virtual Center Network technologies • TCP/IP stack, OSI Model • VPNs • Cisco iOS and VLANs • Juniper Junos OS • HPE DL series Servers • Netapp/HPE Storage solutionsThe environment is that of Facebook or Google, relaxed ...

performance monitoring using tools such as Grafana, Prometheus and ThousandEyes to enable proactive operationsImplementing and maintaining scalable, resilient datacentre network infrastructure built on Cisco and Arista technologiesChampioning automation of operational tasks using Python, Ansible, Jinja2 and GitSupporting and extending Infrastructure-as-Code and CI/CD practices for network … large-scale environmentsExperience applying SRE, observability and automation principles to networking, using technologies such as Python, Prometheus, Grafana, OpenTelemetry, Ansible and JenkinsExperience with Cisco and Arista switching and routing, alongside network security infrastructure, including firewalls, IDS/IPS and network segmentationExpertise in Cisco and Arista platforms, including IOS ...

Network Devices.My client is based in London.For more jobs and updates follow me on twitter @SebQuantCCNA, Networks, TCP/IP Scala Ocaml f# Cisco Arista Ciena corning BIOS Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash ...

software developers. On a day to day basis you will be responsible for: • Deploying and supporting Windows, Linux, and Mac OS • Deploying and supporting IOS and Android mobile devices • Maintaining the health and availability of a world class trading eco-system • Collaborating with stakeholders and other technical services teams … passionate about. My client is based in London Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization; KVM, VirtualBox, BGP, OSPF, VRRP, HSRP Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash sys admin devops ...

experience Experience of designing LAN & WAN solutions, preferably gained in a large enterprise environment (in-house or customer/ISP) Excellent knowledge of Cisco IOS Exceptional Routing and switching knowledge, experience on devices such as 2800, 2900, 3800, 3900, ASR900 series routers and 2520, 4010 switches. Experience ...

experience Experience of designing LAN & WAN solutions, preferably gained in a large enterprise environment (in-house or customer/ISP) Excellent knowledge of Cisco IOS Exceptional Routing and switching knowledge, experience on devices such as , ASR900 series routers and switches. Experience of dealing face to face with customers ...

Sebastiaan on 0203 757 84 84Rackspace, Tech Ops Engineer, Firewalls, Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization; KVM, VirtualBox, BGP, OSPF, VRRP, HSRP Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash sys admin devops ...

passionate about. My client is based in London Trade Support, Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization; KVM, VirtualBox, BGP, OSPF, VRRP, HSRP Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash sys admin devops ...

passionate about. My client is based in LondonTrade Support, Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization; KVM, VirtualBox, BGP, OSPF, VRRP, HSRP Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash sys admin devops ...

call James Holland on 0203 757 8484Scala Ocaml f# Java Linux HPC HFT Systems Infrastructure Linux troubleshooting virtualization; KVM, VirtualBox, BGP, OSPF, VRRP, HSRP Cisco IOS, F5 IPSEC, GRE, PPTP PostgreSQL, MySQL, Linux, Python, Bash sys admin devops ...