1 to 25 of 60 Network Architecture Jobs in London

Job Role : Full Stack Network Engineer Duration : 6+ Months Contract - Inside IR35 Location : London, UK Working Mode: Onsite Job Description: We are seeking a highly skilled Full Stack Network Engineer to join our IT team. This role demands a deep understanding of both front-end and back-end networking technologies, encompassing the design, implementation, and maintenance of comprehensive … network infrastructures. The ideal candidate will be adept at solving complex networking challenges, ensuring optimal performance, security, and scalability of our network systems. Key Responsibilities • Design, implement, and manage network infrastructure including routers, switches, firewalls, and load balancers across various platforms. • Familiar with circuit ordering and DWDM deployments • Familiar with Nexus 7k/Cisco 6500 environments and … to be used to identify business areas/stakeholders and used as a basis to produce a runbook for migration tasks . • Develop and maintain automation scripts to streamline network operations and ensure consistency across environments. • Collaborate with cross-functional teams to understand application requirements and translate them into network solutions. • Ensure network security by implementing industry More ❯

employee-owned business in 2024 and are working hard collectively to deliver our mission. Overview of the Role This is a full-time, client-site role embedded within the Network Engineering team of a global technology firm with over 20,000 employees. The Network Consultant will be responsible for supporting the client’s ongoing network refresh and … upgrade programme across EMEA, as well as new network deployments into offices throughout the region. The role is implementation-focused, working within established network design and technology standards defined by the client. The successful candidate will demonstrate strong technical delivery and project coordination skills, with the ability to plan, document and execute network changes methodically in live … cutover activities, and occasional weekend work may be necessary for which time off in lieu (TOIL) will be provided. Responsibilities Work full-time as part of the client’s Network Engineering team to deliver the EMEA network refresh and deployment programme. Oversee implementation of new and replacement network devices in line with client technology standards. Produce and More ❯

employee-owned business in 2024 and are working hard collectively to deliver our mission. Overview of the Role This is a full-time, client-site role embedded within the Network Engineering team of a global technology firm with over 20,000 employees. The Network Consultant will be responsible for supporting the client’s ongoing network refresh and … upgrade programme across EMEA, as well as new network deployments into offices throughout the region. The role is implementation-focused, working within established network design and technology standards defined by the client. The successful candidate will demonstrate strong technical delivery and project coordination skills, with the ability to plan, document and execute network changes methodically in live … cutover activities, and occasional weekend work may be necessary for which time off in lieu (TOIL) will be provided. Responsibilities Work full-time as part of the client’s Network Engineering team to deliver the EMEA network refresh and deployment programme. Oversee implementation of new and replacement network devices in line with client technology standards. Produce and More ❯

employee-owned business in 2024 and are working hard collectively to deliver our mission. Overview of the Role This is a full-time, client-site role embedded within the Network Engineering team of a global technology firm with over 20,000 employees. The Network Consultant will be responsible for supporting the client’s ongoing network refresh and … upgrade programme across EMEA, as well as new network deployments into offices throughout the region. The role is implementation-focused, working within established network design and technology standards defined by the client. The successful candidate will demonstrate strong technical delivery and project coordination skills, with the ability to plan, document and execute network changes methodically in live … cutover activities, and occasional weekend work may be necessary for which time off in lieu (TOIL) will be provided. Responsibilities Work full-time as part of the client’s Network Engineering team to deliver the EMEA network refresh and deployment programme. Oversee implementation of new and replacement network devices in line with client technology standards. Produce and More ❯

employee-owned business in 2024 and are working hard collectively to deliver our mission. Overview of the Role This is a full-time, client-site role embedded within the Network Engineering team of a global technology firm with over 20,000 employees. The Network Consultant will be responsible for supporting the client’s ongoing network refresh and … upgrade programme across EMEA, as well as new network deployments into offices throughout the region. The role is implementation-focused, working within established network design and technology standards defined by the client. The successful candidate will demonstrate strong technical delivery and project coordination skills, with the ability to plan, document and execute network changes methodically in live … cutover activities, and occasional weekend work may be necessary for which time off in lieu (TOIL) will be provided. Responsibilities Work full-time as part of the client’s Network Engineering team to deliver the EMEA network refresh and deployment programme. Oversee implementation of new and replacement network devices in line with client technology standards. Produce and More ❯

Contract Role: Azure DevOps Network Lead Location: Remote Type: Contract (Outside IR35) Rate: £500 - £525 per day Opus are working with a key client on an Azure DevOps Network Lead role to deliver secure, scalable network architecture across a large Azure estate. The role focuses on automation, routing, and security-leveraging Azure Front Door, Application Gateway … an initial 3 month contract with a proposed project completion date of March 2027. Key Skills: Azure networking: VNets, NSGs, UDRs, Front Door, App Gateway, Private Link Terraform for network automation Container networking (AKS, CNI, ingress controllers) Microsoft Sentinel, Azure Monitor, Network Watcher Experience in central government programmes Deliverables include: IaC templates (Terraform/Bicep) Network architecture More ❯

Network Architect - Enhanced SC or DV Cleared - £715 a day - London Hybrid Rate: £700 - £750 a day Location : Hybrid - 3 days a week in London Clearance: DV + UK Sole National You will join a global IT consultancy who are delivering digital transformation to a central government agency. The role: Strategic network delivery of design artifacts in alignment … with project schedule. Artefacts include, but not limited to: Site specific network design (HLD/LLD) Passive infrastructure design and laydown System specific active equipment installation design Rack layouts Patching schedules Enterprise, Local IT & Other Government Department (OGD) System Owner engagement to ensure alignment of proposed system implementation. Strong technical background with understanding of end-to-end system design … and dependencies. Network Architecture & Design Network Implementation Passive (fibre & copper, vertical (backbone) & horizontal) infrastructure design LANs & WANs WAN circuit dependencies and provisioning Data Encryption (cryptos) End User Device (EUD), computer storage, etc dependencies upon network infrastructure. Uninterruptible Power Supplies (UPS) Understanding of system delivery lifecycle through Service Design, Service Transition, Service Acceptance and Live Service Working More ❯

Network Design Engineers - Fortinet/SD-WAN | London | £50 - 72k + Bonus Please note - no visa sponsorship available, only candidates who are eligible for SC Clearance can be considered (living in the UK for five years continuously - ILR, British Citizenship or similar settled status acceptable) Are you a skilled Network Engineer ready to take on high impact projects … for a leading technology provider I am exclusively partnered with a major enterprise client on a large scale transformation programme and I'm looking for Network Design Engineers with strong experience in Fortinet, SD-WAN, and network security to join the team.What's on Offer Permanent roles with competitive salaries: £50-72k + 10% bonus Hybrid working … days on-site in London Work on cutting-edge network architecture and secure infrastructure design Join a fast-paced delivery team with real impact across public and private sector clients What We're Looking For Proven experience in network design and deployment Hands-on with Fortinet firewalls, SD-WAN, and Juniper/Cisco technologies Strong understanding of More ❯

Network Design Engineers - Fortinet/SD-WAN | London | £50 - 72k + Bonus Please note - no visa sponsorship available, only candidates who are eligible for SC Clearance can be considered (living in the UK for five years continuously - ILR, British Citizenship or similar settled status acceptable) If the following job requirements and experience match your skills, please ensure you apply … promptly. Are you a skilled Network Engineer ready to take on high impact projects for a leading technology provider? I am exclusively partnered with a major enterprise client on a large scale transformation programme and I'm looking for Network Design Engineers with strong experience in Fortinet, SD-WAN, and network security to join the team. What … s on Offer Permanent roles with competitive salaries: £50-72k + 10% bonus Hybrid working: 3 days on-site in London Work on cutting-edge network architecture and secure infrastructure design Join a fast-paced delivery team with real impact across public and private sector clients What We're Looking For Proven experience in network design More ❯

Security Analyst (Network & Support) Location - London (Hybrid) Duration - 6 Months (Initially) Rate - £450 (A day) IR35 - Outside IR35 Summary To be part of Digital Services, actively contributing as a member of the Infrastructure and Operations Team to support and develop the Network Infrastructure, Services, and Security. Provide 3rd line support for all wired, Wi-Fi, and remote access … network services to staff, students, contractors, and visitors. Act as a key point of reference in network security, contributing to the implementation, development, provisioning, and operational support of network dependencies. The post holder will be expected to support the designing, implementation, and maintenance of our client's Network Security Infrastructure to protect against cyber threats. Accountabilities … and Responsibilities Security Operations Support Serve as a reference point for network security across IT teams, providing guidance and specialised expertise on security measures. Conduct vulnerability assessments, security audits, and continuous monitoring of network traffic for anomalies using advanced security tools. Collaborate with IT teams to ensure security measures are integrated into network architecture and applications More ❯

Security Analyst (Network & Support) Location - London (Hybrid) Duration - 6 Months (Initially) Rate - £450 (A day) IR35 - Outside IR35 Summary To be part of Digital Services, actively contributing as a member of the Infrastructure and Operations Team to support and develop the Network Infrastructure, Services, and Security. Provide 3rd line support for all wired, Wi-Fi, and remote access … network services to staff, students, contractors, and visitors. Act as a key point of reference in network security, contributing to the implementation, development, provisioning, and operational support of network dependencies. The post holder will be expected to support the designing, implementation, and maintenance of our client's Network Security Infrastructure to protect against cyber threats. Accountabilities … and Responsibilities Security Operations Support Serve as a reference point for network security across IT teams, providing guidance and specialised expertise on security measures. Conduct vulnerability assessments, security audits, and continuous monitoring of network traffic for anomalies using advanced security tools. Collaborate with IT teams to ensure security measures are integrated into network architecture and applications More ❯

Network Security Engineer Network Security/Penetration Testing/CREST/CSTL/API Testing/Config Reviews/Infrastructure/Outside IR35/West London We’re seeking an experienced Network Security Engineer to support a major multi-phase security testing project. You’ll conduct penetration tests, configuration reviews, and infrastructure assessments, contributing to a high … profile programme of work extending into next year. Required Strong background in network and infrastructure security. Experience performing penetration testing, configuration reviews, and API testing. Knowledge of “classic” CHECK-style testing methodologies. CREST, CSTL or CTL certification (Team Member or Team Leader level). Ability to deliver high-quality reports and communicate technical findings clearly. Hands-on experience across … infrastructure, networking, and external testing. Desirable Experience working within CHECK or other accredited testing schemes. Strong understanding of secure network architecture and hardening practices. Previous consultancy or project-based testing experience. Contract Details Outside IR35 West London (on-site presence required for majority of testing) 0-hours contract – project-based work, phase by phase Initial phase focused on More ❯

Network Security Engineer Network Security/Penetration Testing/CREST/CSTL/API Testing/Config Reviews/Infrastructure/Outside IR35/West London We’re seeking an experienced Network Security Engineer to support a major multi-phase security testing project. You’ll conduct penetration tests, configuration reviews, and infrastructure assessments, contributing to a high … profile programme of work extending into next year. Required Strong background in network and infrastructure security. Experience performing penetration testing, configuration reviews, and API testing. Knowledge of “classic” CHECK-style testing methodologies. CREST, CSTL or CTL certification (Team Member or Team Leader level). Ability to deliver high-quality reports and communicate technical findings clearly. Hands-on experience across … infrastructure, networking, and external testing. Desirable Experience working within CHECK or other accredited testing schemes. Strong understanding of secure network architecture and hardening practices. Previous consultancy or project-based testing experience. Contract Details Outside IR35 West London (on-site presence required for majority of testing) 0-hours contract – project-based work, phase by phase Initial phase focused on More ❯

design, build, and operate systems that directly enable trading and investment decision-making. With trading volumes, data analytics, and cloud integration scaling rapidly, the firm is expanding its core network engineering function to ensure its systems remain ultra-low latency, secure, and globally consistent. This is a key hire in building the next generation of network architecture … environment and global technology platform Opportunities for professional development and advanced certifications A collaborative, high-trust culture that values expertise and innovation What You’ll Do As a Senior Network Engineer, you’ll play a central role in maintaining and evolving the firm’s global data and voice network. You’ll design and deliver projects that support both trading … operations and broader business initiatives across data centres, offices, and cloud environments. Key responsibilities include: Owning and supporting the global network and voice infrastructure Designing, implementing, and optimising secure, scalable network solutions Partnering with internal teams and external vendors to resolve complex network issues Leading infrastructure projects involving data centres, telephony, and cloud connectivity Performing proactive monitoring More ❯

design, build, and operate systems that directly enable trading and investment decision-making. With trading volumes, data analytics, and cloud integration scaling rapidly, the firm is expanding its core network engineering function to ensure its systems remain ultra-low latency, secure, and globally consistent. This is a key hire in building the next generation of network architecture … environment and global technology platform Opportunities for professional development and advanced certifications A collaborative, high-trust culture that values expertise and innovation What You’ll Do As a Senior Network Engineer, you’ll play a central role in maintaining and evolving the firm’s global data and voice network. You’ll design and deliver projects that support both trading … operations and broader business initiatives across data centres, offices, and cloud environments. Key responsibilities include: Owning and supporting the global network and voice infrastructure Designing, implementing, and optimising secure, scalable network solutions Partnering with internal teams and external vendors to resolve complex network issues Leading infrastructure projects involving data centres, telephony, and cloud connectivity Performing proactive monitoring More ❯

design, build, and operate systems that directly enable trading and investment decision-making. With trading volumes, data analytics, and cloud integration scaling rapidly, the firm is expanding its core network engineering function to ensure its systems remain ultra-low latency, secure, and globally consistent. This is a key hire in building the next generation of network architecture … environment and global technology platform Opportunities for professional development and advanced certifications A collaborative, high-trust culture that values expertise and innovation What You’ll Do As a Senior Network Engineer, you’ll play a central role in maintaining and evolving the firm’s global data and voice network. You’ll design and deliver projects that support both trading … operations and broader business initiatives across data centres, offices, and cloud environments. Key responsibilities include: Owning and supporting the global network and voice infrastructure Designing, implementing, and optimising secure, scalable network solutions Partnering with internal teams and external vendors to resolve complex network issues Leading infrastructure projects involving data centres, telephony, and cloud connectivity Performing proactive monitoring More ❯

design, build, and operate systems that directly enable trading and investment decision-making. With trading volumes, data analytics, and cloud integration scaling rapidly, the firm is expanding its core network engineering function to ensure its systems remain ultra-low latency, secure, and globally consistent. This is a key hire in building the next generation of network architecture … environment and global technology platform Opportunities for professional development and advanced certifications A collaborative, high-trust culture that values expertise and innovation What You’ll Do As a Senior Network Engineer, you’ll play a central role in maintaining and evolving the firm’s global data and voice network. You’ll design and deliver projects that support both trading … operations and broader business initiatives across data centres, offices, and cloud environments. Key responsibilities include: Owning and supporting the global network and voice infrastructure Designing, implementing, and optimising secure, scalable network solutions Partnering with internal teams and external vendors to resolve complex network issues Leading infrastructure projects involving data centres, telephony, and cloud connectivity Performing proactive monitoring More ❯

Radius is seeking a Head of Networks to lead the strategy, design and implementation of both internal and customer Network infrastructures. The role ensures delivery of secure, resilient, and scalable network services that meet evolving business and security standards while delivering related products and services across EMEA. Oversee design, implementation and continuous improvement of Network architecture, driving innovation and scandalisation across the company. Act of my clients senior authority on network strategy, policy, and technical governance. Own network projects, including procurement, budgeting and security assessments Build manage and mentor a high performing network function Deep understanding of Juniper and Cisco networks. Deep understanding of Windows server, TCP/IP, routing, SANS, Active … directory, firewalls and system monitoring proven experience designing and managing resilient secure and high availability network environments supporting internal and customer services strong grasp of network security best practices and technologies including firewalls, segmentation, intrusion detection/prevention and encryption. More ❯

Radius is seeking a Head of Networks to lead the strategy, design and implementation of both internal and customer Network infrastructures. The role ensures delivery of secure, resilient, and scalable network services that meet evolving business and security standards while delivering related products and services across EMEA. Oversee design, implementation and continuous improvement of Network architecture, driving innovation and scandalisation across the company. Act of my clients senior authority on network strategy, policy, and technical governance. Own network projects, including procurement, budgeting and security assessments Build manage and mentor a high performing network function Deep understanding of Juniper and Cisco networks. Deep understanding of Windows server, TCP/IP, routing, SANS, Active … directory, firewalls and system monitoring proven experience designing and managing resilient secure and high availability network environments supporting internal and customer services strong grasp of network security best practices and technologies including firewalls, segmentation, intrusion detection/prevention and encryption. More ❯

Radius is seeking a Head of Networks to lead the strategy, design and implementation of both internal and customer Network infrastructures. The role ensures delivery of secure, resilient, and scalable network services that meet evolving business and security standards while delivering related products and services across EMEA. Oversee design, implementation and continuous improvement of Network architecture, driving innovation and scandalisation across the company. Act of my clients senior authority on network strategy, policy, and technical governance. Own network projects, including procurement, budgeting and security assessments Build manage and mentor a high performing network function Deep understanding of Juniper and Cisco networks. Deep understanding of Windows server, TCP/IP, routing, SANS, Active … directory, firewalls and system monitoring proven experience designing and managing resilient secure and high availability network environments supporting internal and customer services strong grasp of network security best practices and technologies including firewalls, segmentation, intrusion detection/prevention and encryption. More ❯

Radius is seeking a Head of Networks to lead the strategy, design and implementation of both internal and customer Network infrastructures. The role ensures delivery of secure, resilient, and scalable network services that meet evolving business and security standards while delivering related products and services across EMEA. Oversee design, implementation and continuous improvement of Network architecture, driving innovation and scandalisation across the company. Act of my clients senior authority on network strategy, policy, and technical governance. Own network projects, including procurement, budgeting and security assessments Build manage and mentor a high performing network function Deep understanding of Juniper and Cisco networks. Deep understanding of Windows server, TCP/IP, routing, SANS, Active … directory, firewalls and system monitoring proven experience designing and managing resilient secure and high availability network environments supporting internal and customer services strong grasp of network security best practices and technologies including firewalls, segmentation, intrusion detection/prevention and encryption. More ❯

Radius is seeking a Head of Networks to lead the strategy, design and implementation of both internal and customer Network infrastructures. The role ensures delivery of secure, resilient, and scalable network services that meet evolving business and security standards while delivering related products and services across EMEA. Oversee design, implementation and continuous improvement of Network architecture, driving innovation and scandalisation across the company. Act of my clients senior authority on network strategy, policy, and technical governance. Own network projects, including procurement, budgeting and security assessments Build manage and mentor a high performing network function Deep understanding of Juniper and Cisco networks. Deep understanding of Windows server, TCP/IP, routing, SANS, Active … directory, firewalls and system monitoring proven experience designing and managing resilient secure and high availability network environments supporting internal and customer services strong grasp of network security best practices and technologies including firewalls, segmentation, intrusion detection/prevention and encryption. More ❯

embedded throughout technology operations and architecture. The IT Security Engineer is key to detecting, preventing, and responding to cybersecurity threats in a proactive and efficient manner. Key Responsibilities: Security Architecture & Implementation Design, deploy, and manage security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, SIEM, and identity management platforms. Implement secure network architecture and enforce … privilege access controls. Support secure cloud environments across Azure, AWS, or GCP (e.g., IAM, security groups, encryption, KMS). Threat Detection & Incident Response Monitor and analyze security alerts and network traffic for threats or suspicious activity. Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. Vulnerability & Risk … frameworks such as ISO 27001, NIST, CIS, or SOC 2. Support audits, evidence collection, and compliance reporting (e.g., GDPR, PCI-DSS). Develop and maintain documentation for policies, procedures, architecture, and runbooks. Collaboration & Knowledge Sharing Work with IT operations, cloud, and development teams to embed security in system and application designs. Provide expert security guidance during solution design, procurement More ❯

embedded throughout technology operations and architecture. The IT Security Engineer is key to detecting, preventing, and responding to cybersecurity threats in a proactive and efficient manner. Key Responsibilities: Security Architecture & Implementation Design, deploy, and manage security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, SIEM, and identity management platforms. Implement secure network architecture and enforce … privilege access controls. Support secure cloud environments across Azure, AWS, or GCP (e.g., IAM, security groups, encryption, KMS). Threat Detection & Incident Response Monitor and analyze security alerts and network traffic for threats or suspicious activity. Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. Vulnerability & Risk … frameworks such as ISO 27001, NIST, CIS, or SOC 2. Support audits, evidence collection, and compliance reporting (e.g., GDPR, PCI-DSS). Develop and maintain documentation for policies, procedures, architecture, and runbooks. Collaboration & Knowledge Sharing Work with IT operations, cloud, and development teams to embed security in system and application designs. Provide expert security guidance during solution design, procurement More ❯

embedded throughout technology operations and architecture. The IT Security Engineer is key to detecting, preventing, and responding to cybersecurity threats in a proactive and efficient manner. Key Responsibilities: Security Architecture & Implementation Design, deploy, and manage security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, SIEM, and identity management platforms. Implement secure network architecture and enforce … privilege access controls. Support secure cloud environments across Azure, AWS, or GCP (e.g., IAM, security groups, encryption, KMS). Threat Detection & Incident Response Monitor and analyze security alerts and network traffic for threats or suspicious activity. Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. Vulnerability & Risk … frameworks such as ISO 27001, NIST, CIS, or SOC 2. Support audits, evidence collection, and compliance reporting (e.g., GDPR, PCI-DSS). Develop and maintain documentation for policies, procedures, architecture, and runbooks. Collaboration & Knowledge Sharing Work with IT operations, cloud, and development teams to embed security in system and application designs. Provide expert security guidance during solution design, procurement More ❯