1 to 25 of 44 Permanent Cisco IOS Jobs

role will involve: Creating/modifying device configurations across switching and routing products, Creating/modifying firewall configurations and policies for different vendors (Cisco, Fortinet, Palo Alto, etc) Working knowledge of Fortigate Firewalls, Cisco FTD, Cisco ACI, Cisco Nexus and Catalyst switches, Cisco ISE NAC, Cisco Wireless, Palo Alto Firewalls, F5 BigIP server load balancers, dynamic routing protocols and best practice device configuration, Experience working with network management platforms (SolarWinds) Excellent troubleshooting skills, with prior experience working as an escalation engineer managing high-priority incidents. You will need to be able ...

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/ ...

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 ...

knowledge and experience with the following:- Change control, licensing and asset management Understanding of BGP, MPLS, OSPF, STP, IPSEC, SSL TCP/IP knowledge Cisco ASR and ISR routers Cisco Nexus 9K, Catalyst 9000 and 3000 Series switches Cisco Wireless controllers Cisco DNA and ISE NXOS … IOS-XE, IOS and PANOS knowledge Wireless networking and protocols VPN- Remote, Site-to-Site and Cloud solutions Experience of working within an Enterprise Environment 802.1x authentication and TACACS/RADIUS QoS Cabling standards Personal Attributes: Ability to multi-task Analytical mind, with a problem solving ethic. Enthusiastic ...

Management tools, F5 Load Balancers, Virtual Private Networks (VPNs), Palo Alto Firewalls, Web Application Firewalls, and other network related technologies In-depth knowledge of Cisco IOS, NXOS, PANOS, STP, BGP, OSPF, EIGRP, MPLS, VXLAN, access-lists Experience with Datacenter virtualization technologies. Experience with cloud (Azure or AWS) network …/infrastructure technologies. Experience with Cisco and similar VOIP telephony infrastructure. Possess a thorough understanding of 802.11 wireless principles. Strong ability to troubleshoot end-user device connectivity at a firewall level. Knowledge of 802.1X and SAML/SSO implementation strategies. You should possess excellent communication and client service skills ...

Management tools, F5 Load Balancers, Virtual Private Networks (VPNs), Palo Alto Firewalls, Web Application Firewalls, and other network related technologies* In-depth knowledge of Cisco IOS, NXOS, PANOS, STP, BGP, OSPF, EIGRP, MPLS, VXLAN, access-lists* Experience with Datacenter virtualization technologies.* Experience with cloud (Azure or AWS) network …/infrastructure technologies.* Experience with Cisco and similar VOIP telephony infrastructure.* Possess a thorough understanding of 802.11 wireless principles.* Strong ability to troubleshoot end-user device connectivity at a firewall level.* Knowledge of 802.1X and SAML/SSO implementation strategies.* You should possess excellent communication and client service skills ...

seeking a skilled and motivated Telecommunication Engineer with hands-on experience in MikroTik , Cisco , and Juniper networking equipment. The ideal candidate will be responsible for designing, implementing, and maintaining robust network infrastructures for both residential and business clients. This role requires strong technical expertise, problem-solving skills … ability to work independently or as part of a team. Key Responsibilities: Design, configure, and maintain network systems using MikroTik, Cisco, and Juniper routers and switches. Monitor network performance and troubleshoot issues to ensure optimal uptime and reliability. Implement and manage routing protocols (OSPF, BGP, RIP) and VLAN configurations. ...

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 … 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 ...

Segment Routing (SR-MPLS/SRv6), BGP/EVPN carrier services, traffic engineering, and Converged Optical & Packet Networking, on at least one major platform (Cisco IOS XR, Junos, or Nokia SR OS).Expert-level knowledge equivalent to Cisco CCIE Service Provider, HPE (Juniper) JNCIE-SP, or Nokia … motivated, able to work independently across long-term, complex architectural engagements and diverse, cross-functional teams. Preferred Qualifications: Multi-vendor hands-on fluency across Cisco, Juniper, and Nokia beyond the primary certification platform. Experience with OEM network management/automation platforms e.g., Cisco Crosswork, Juniper Routing Director, Nokia ...

candidates. A major banking group operating in EMEA is undergoing a significant infrastructure transformation programme, converging two separate network environments (a legacy three-tier Cisco campus network and an ACI spine-leaf fabric) alongside the integration of a European banking subsidiary. This is a hands-on senior architecture role … requiring both strategic thinking and the ability to roll up sleeves and engage at detailed engineering levels. Requirements Must have Deep expertise in Cisco networking: Nexus (7K, 5K, 2K, 9K), IOS, NX-OS Strong working knowledge of Cisco ACI — ability to assess hybrid/pseudo-ACI deployments ...

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 ...

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 ...

IDSL seeks a Telecommunication Engineer with hands-on experience in MikroTik RouterOS, Cisco IOS, and Juniper Junos to design and maintain robust network infrastructures for residential and business clients in the UK. You will design, implement, monitor, and troubleshoot routing, switching, and security configurations, work with cross-functional ...

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 ...

performance monitoring using tools such as Grafana, Prometheus and ThousandEyes to enable proactive operations Implementing and maintaining scalable, resilient datacentre network infrastructure built on Cisco and Arista technologies Championing automation of operational tasks using Python, Ansible, Jinja2 and Git Supporting and extending Infrastructure-as-Code and CI/… scale environments Experience applying SRE, observability and automation principles to networking, using technologies such as Python, Prometheus, Grafana, OpenTelemetry, Ansible and Jenkins Experience with Cisco and Arista switching and routing, alongside network security infrastructure, including firewalls, IDS/IPS and network segmentation Expertise in Cisco and Arista platforms ...

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 ...

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 ...

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 ...

Server Operating Systems, specifically Windows 10 Pro\ Windows Server 2008 R2\2012\2012 R2\2016 o Network Switches, preferably with Cisco IOS o Firewalls and Routers, preferably with Fortinet Fortigate o Storage Systems (SAN\NAS\DAS), o Server Hardware, including blade servers o Loading Configuration file on network ...

maintaining Microsoft Server/Desktop operating systems, Microsoft 365, and Azure environments Setting up and configuring new laptops, desktops and mobile phones (Android and iOS) Installing and maintaining authorised software Reporting faults and maintaining logs on servers, desktops and laptops Completing internal user desk moves Ensuring all logs … configuration (Point-to-Site and Site-to-Site) and route troubleshooting Network Security Groups (NSGs) – inbound/outbound rule design and troubleshooting Knowledge of Cisco Unified Communications Manager (Cisco Unify/Cisco UC) – call routing, telephony administration, and troubleshooting Familiarity with switching, routing and Wi-Fi infrastructure ...

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 ...

call James Holland on 0203 155 1947Scala 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 ...