Networks and Open Source technologies. Positive, constructive, and open-minded attitude. Self-motivated and able to work autonomously. Understanding of Routing and Switching protocols such as TCP/IP, BGP, DNS, DHCP, VRRP. Experience supporting multi-vendor routing/switching environments (Arista, Juniper, Cisco, Palo Alto, Fortinet). Knowledge of Firewall operations, configuration, and management, primarily Palo Alto and Fortigate. More ❯
infrastructure Create and maintain operational documentation and diagrams for NPL's network and telephone systems Key required experience, knowledge, and skills: Knowledge of network protocols and topologies including OSPF, BGP, VRFs Experience with Alcatel-Lucent Enterprise switching and OmniVista management is ideal; experience with other enterprise networking technologies is acceptable Experience with Alcatel-Lucent Stellar Wi-Fi or similar networks More ❯
LTM, GTM, AFM, AWAF) and Fortinet. Operating, configuring and troubleshooting NXOS, IOS XE/XR, F5 TMOS operating systems, FortiOS Strong understanding of the majority of the following protocols: BGP, ISIS, VRF, OTV, STP, IPSec, PKI, VDC, VPC, VRRP, HSRP technologies. Fundamental knowledge of management protocols and secure implementation of SSH, AAA (TACACS+), Syslog, SNMP, NTP In-depth understanding of More ❯
and optimizing network performance. AWS certifications, such as AWS Certified Solutions Architect (Professional) or AWS Advanced Networking Specialty, are highly desirable. Proficiency in networking protocols (e.g., TCP/IP, BGP, DNS) and security principles. Expertise in infrastructure as code tools (e.g., Terraform, CloudFormation). Strong problem-solving skills with the ability to analyze complex systems and design efficient solutions. Technical More ❯
East London, London, United Kingdom Hybrid / WFH Options
83zero Limited
level. Strong experience managing third-line support within a fast-paced environment. Expertise in ServiceNow ITSM and solid understanding of ITIL processes. Advanced knowledge of routing/switching protocols (BGP, OSPF, VLANs, STP, TCP/IP). Hands-on experience with Cisco, Juniper, Fortinet, and Palo Alto devices. Excellent leadership, communication, and decision-making skills. Leadership/Management experience is More ❯
engineering team. Prepare reports, documentation, and presentations for stakeholders, ensuring transparency and effective communication. What We're Looking For: Technical Skills: Strong understanding of networking protocols (TCP/IP, BGP, OSPF, MPLS, VPN, etc.). Experience with network infrastructure, including routers, switches, firewalls, and load balancers. Hands-on experience with cloud networking (AWS, Azure, Google Cloud) and SDN (Software-Defined More ❯
connectivity patterns Experience with SD-WAN technologies, such as Cisco Meraki Familiarity with zero trust networking principles and solutions, e.g. Zscaler Experience configuring and troubleshooting dynamic routing protocols (e.g. BGP, OSPF) VPN configuration and troubleshooting skills across multiple environments Exposure to multi-vendor firewall environments with a focus on secure policy design and integration What you'll get in return More ❯
and implementation focused on redundancy and highly available networks Strong understanding of the OSI model layer and TCP/IP stack, with advanced network troubleshooting In-depth knowledge of BGP, MPLS, service provider and enterprise routing protocols L2 and L3 network design, operations, and troubleshooting WAN Routing and traffic engineering Strong familiarity with major network vendors, such as Cisco, Juniper More ❯
years experience in Python or other language PREFERRED QUALIFICATIONS - Thorough understanding of TCP/IP networking, IP routing, and core technologies such as IP, TCP, OSPF/IS-IS, BGP, MPLS, Server Load Balancers, Firewalls, ACLs, DNS, DHCP, IPAM, LDAP, NFS, etc. - Knowledge of network analysis fundamentals and robust troubleshooting skills; specifically, network performance analysis - Experience working with customers to More ❯
4. Qualifications/Skills Required Technical Expertise : Expert in low-latency network technologies, including Multicast (IGMP, PIM), L2/L3, and WAN design. Expert in routing protocols such as BGP and OSPF. Experience with Arista, Cisco, including Layer 1 switches. Knowledge of FPGA and high-performance computing technologies is a plus. Strong understanding of time synchronization protocols, including Precision Time More ❯
optimize performance, and maintain the highest levels of security and uptime. Key Responsibilities: Design, configure, and maintain Juniper routers, switches, and firewalls (MX, EX, SRX series) Implement and troubleshoot BGP, OSPF, MPLS, and VPN solutions Monitor network performance and perform tuning to ensure optimal efficiency Ensure network security through policies, firewall rules, and regular audits Perform firmware upgrades, patching, and … Work collaboratively with internal teams and external vendors Required Skills and Qualifications: Proven experience with Juniper networks Strong hands-on experience with Junos OS Solid understanding of routing protocols (BGP, OSPF, RIP, MPLS) Experience with network security, firewall configurations, and VPNs Familiarity with network monitoring tools (SolarWinds, Nagios, etc.) Excellent analytical and problem-solving skills Effective communication and teamwork skills More ❯
optimize performance, and maintain the highest levels of security and uptime. Key Responsibilities: Design, configure, and maintain Juniper routers, switches, and firewalls (MX, EX, SRX series) Implement and troubleshoot BGP, OSPF, MPLS, and VPN solutions Monitor network performance and perform tuning to ensure optimal efficiency Ensure network security through policies, firewall rules, and regular audits Perform firmware upgrades, patching, and … Work collaboratively with internal teams and external vendors Required Skills and Qualifications: Proven experience with Juniper networks Strong hands-on experience with Junos OS Solid understanding of routing protocols (BGP, OSPF, RIP, MPLS) Experience with network security, firewall configurations, and VPNs Familiarity with network monitoring tools (SolarWinds, Nagios, etc.) Excellent analytical and problem-solving skills Effective communication and teamwork skills More ❯
City of London, London, United Kingdom Hybrid / WFH Options
ECS
network issues Automate network operations using tools like Ansible, Python, and Git Collaborate across engineering, security, and DevOps teams Tech Stack: Core: Cisco, Arista (IOS, NX-OS, EOS) Protocols: BGP, OSPF, EVPN, VXLAN, MPLS Tools: Python, Ansible, Jinja2, Git Ideal Candidate: Strong experience in large-scale enterprise or data centre networks Hands-on with Cisco and Arista platforms Comfortable in More ❯
ACI and SDN technologies. Hands-on deployment, configuration, and troubleshooting of data centre networks. Configure and manage Firewalls, with a focus on Fortinet. Expertise in networking protocols such as BGP, OSPF, VLANs, VXLAN, and Layer 2/3. Requirements (Multiple engineers who between them share the following): Proven experience with Cisco Routing & Switching, Juniper, and Arista networks. Strong understanding of More ❯
extensive experience Strong experience in either implementation, configuration or troubleshooting in service provider or enterprise network Efficient network understanding (LAN, TCP/IP, DNS, DHCP, NAT/PAT, static, BGP routing) Knowledge on SDN-NFV and SD-WAN Working knowledge of hypervisors like VMware ESXi, VSphere, KVM etc. Working experience of Cloud Computing Platforms like AWS, Azure, GCP Working Knowledge More ❯
Central London, London, United Kingdom Hybrid / WFH Options
iDPP
WindRiver). Drive infrastructure automation using Ansible, Terraform, Python , and Infrastructure-as-Code practices. Ensure end-to-end service provider core and data centre network design , including expert-level BGP , inter-AS, and policy/routing configurations. Apply Linux expertise across PaaS, IaaS, SaaS, and CaaS environments. Work with supporting services such as DNS, ADC, AAA, firewalls, SIEM, protocol inspection … security requirements and approaches for: 3GPP mobile architectures, particularly 3GPP Release 15 and onwards. IMS RAN architectures (e.g. C-RAN functional split models) Expert-level knowledge of routing protocols (BGP) , network resilience, and service provider architectures . Strong experience in Kubernetes , Linux networking , and container networking interfaces (CNIs). Hands-on skills in SDN overlays (VXLAN/Geneve) , network virtualisation More ❯
Juniper SRX firewalls in enterprise environments. JNCIP or JNCIE certification (Security or Enterprise) is required . Strong command-line interface (CLI) configuration skills. In-depth knowledge of routing protocols (BGP, OSPF), VPNs (IPSec, SSL), and firewall policies. Experience working in environments governed by IR35 regulations. Excellent communication and documentation skills. Desirable: Experience with automation tools (e.g., Ansible, Python scripting for More ❯
delivering Fortinet SD-WAN solutions in enterprise environments. Deep understanding of traditional WAN technologies (e.g., MPLS, leased lines) and their integration with SD-WAN. Strong knowledge of routing protocols (BGP, OSPF), IP addressing schemes, and network segmentation practices. Experience operating within enterprise-scale, security-conscious environments with rigorous change control processes. Ability to work effectively both independently and in globally More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
INTEC SELECT LIMITED
support and architecture. Networking: Robust networking background, with experience in managing multiple sites from firewalls to edge switches (Palo Alto, HP, Cisco), and familiarity with SD-WAN, IPv6, VPN, BGP, and Zero Trust/Zero Trust Network Access (ZT/ZTNA). On-Premise Solutions: Experience with on-premise solutions, e.g. VMware Enterprise Storage: Proficiency in managing enterprise storage solutions More ❯
network modelling Eagerness to learn new technologies and mentor others Experience with Telemetry: Splunk, Grafana, Humio Experience with continuous integration and deployment tools Experience implementing, maintaining and troubleshooting MPLS, BGP, OSPF, IGMP, PIM related internal and external network routing issues in a production environment Knowledge with messaging queues such as Kafka, RabbitMQ, etc Bloomberg is an equal opportunity employer and More ❯
within BT's network and CFU teams. The skills you'll need to succeed A subject matter in the following network technologies MPLS (SR, LDP etc), OSPF, IS-IS, BGP-VPN/L3VPN & eBGP. Strong understanding of model-driven network programmability e.g. RESTCONF, NETCONF, GNMI & YANG models. Strong software development skills with a focus on network automation e.g. Ansible, Jinja2 More ❯
in a high-stakes environment Confident with large-scale WAN troubleshooting and datacentre infrastructure Tech You'll Be Working With: VXLAN-EVPN (Cisco & Arista) Nexus Dashboard Fabric Controller (NDFC) BGP, Git, Python, YAML Jira, network automation frameworks, and scripting toolkits Schedule: 4 days onsite in West London Environment: Highly technical, automation-led, and collaborative Salary: Up to £75,000 per More ❯
East London, London, United Kingdom Hybrid / WFH Options
83zero Limited
with significant pre-sales and solution design experience. Ability to confidently consult across diverse verticals and tailor solutions to customer needs. Strong background in technologies including: Network: VPLS, MPLS, BGP, VRRP, SD-WAN, IP Routing Security: Layer 7 firewalls, SIEM, SASE Cloud: Public/Private Cloud architecture, Cloud-hosted IP Telephony Wireless & LAN: HPE Aruba Central, Cisco DNA Unified Comms More ❯
WAN changes Troubleshooting ClearPass, switch templates, and Aruba Central deployments Ensuring smooth operational handover from project to BAU via ticketing systems Must-Have Skills: CCNP-level networking knowledge Strong BGP understanding and real-world usage Experience using a ticketing system (e.g. ServiceNow) Firewall exposure (Cisco Firepower/FTD/FMC preferred) Proactive, organised, able to take initiative and manage tasks More ❯
