17 network consultant jobs found in London

Network & Cloud Infrastructure Consultant - 1 month Contract (SOW) - Outside IR35 - Remote (Ad-hoc travel to Central London) We are looking for an experienced Network & Cloud Infrastructure Consultant to deliver a fixed-scope engagement supporting deployment of a quantum computing platform into a London-based innovation lab, covering design, implementation, testing, documentation, and handover. Key Responsibilities Design Layer 2/3 network architecture, including BGP routing where appropriate Implement MikroTik routing and GCP networking, including VPC, Firewalling, and IAM-aware access models Integrate and validate hybrid connectivity via Digital Realty ServiceFabric or equivalent Deploy and validate test rigs, supporting production deployment and commissioning Produce technical documentation, handover materials, and a final report What You Will Ideally Bring Strong enterprise/datacentre networking background, deep in Layer 2/3, BGP, and...

Join a global financial services organisation where your network security expertise will drive critical infrastructure transformation and shape the future of secure banking operations. Salary:  £600 - 650 per day Principal Network Security Consultant A Global Financial Services Organisation requires a Contract Principal Network Security Consultant with deep expertise across network security architecture, WAF, F5, firewalls, network segmentation, VPNs and legacy on-prem infrastructure. IR35 Status: Outside Day Rate: £600-£650pd Travel: 2 days a week in Central London Office Duration: Initial 6 months Responsibilities: Lead the refresh of the organisation's network security architecture and roadmap, providing senior technical direction across a complex, predominantly on-prem environment within a highly regulated banking/CNI setting Provide deep network security expertise across WAF, network segmentation, firewall...

Job Title: Network & Security Consultant Day Rate: £400-450 per day - Outside IR35/Limited Company Duration: 6 months initially Location: Central London - Fully onsite Start Date: ASAP Role We are assisting a client who require an experienced Cisco Network & Security Consultant to support a network and security infrastructure refresh, covering the deployment of Cisco Secure Firewall technology alongside a Cisco switching migration. This role requires strong technical capability across both network security and enterprise networking, with particular emphasis on Cisco Secure Firewall and advanced BGP. Key Responsibilities Design and deployment of a new Cisco Secure Firewall Management Center (FMC) High Availability pair Deployment and configuration of HA pair Cisco Secure Firewalls Migration of existing Legacy Firewall configurations to the new environment Review and optimisation of migrated configurations in line with current Cisco and security best practices...

Job Title: Network & Security Consultant Day Rate: £400-450 per day - Outside IR35/Limited Company Duration: 6 months initially Location: Central London - Fully onsite Start Date: ASAP Role We are assisting a client who require an experienced Cisco Network & Security Consultant to support a network and security infrastructure refresh, covering the deployment of Cisco Secure Firewall technology alongside a Cisco switching migration. This role requires strong technical capability across both network security and enterprise networking, with particular emphasis on Cisco Secure Firewall and advanced BGP. Key Responsibilities Design and deployment of a new Cisco Secure Firewall Management Center (FMC) High Availability pair Deployment and configuration of HA pair Cisco Secure Firewalls Migration of existing Legacy Firewall configurations to the new environment Review and optimisation of migrated configurations in line with current Cisco and...

Job Title: Network & Security Consultant Day Rate: £400-450 per day - Outside IR35 / Limited Company Duration: 6 months initially Location: Central London - Fully onsite Start Date: ASAP Role We are assisting a client who require an experienced Cisco Network & Security Consultant to support a network and security infrastructure refresh, covering the deployment of Cisco Secure Firewall technology alongside a Cisco switching migration. This role requires strong technical capability across both network security and enterprise networking, with particular emphasis on Cisco Secure Firewall and advanced BGP. Key Responsibilities Design and deployment of a new Cisco Secure Firewall Management Center (FMC) High Availability pair Deployment and configuration of HA pair Cisco Secure Firewalls Migration of existing legacy firewall configurations to the new environment Review and optimisation of migrated configurations in line with current Cisco and...

Job Title: Network & Security Consultant Day Rate: £400-450 per day - Outside IR35 / Limited Company Duration: 6 months initially Location: Central London - Fully onsite Start Date: ASAP Role We are assisting a client who require an experienced Cisco Network & Security Consultant to support a network and security infrastructure refresh, covering the deployment of Cisco Secure Firewall technology alongside a Cisco switching migration. This role requires strong technical capability across both network security and enterprise networking, with particular emphasis on Cisco Secure Firewall and advanced BGP. Key Responsibilities Design and deployment of a new Cisco Secure Firewall Management Center (FMC) High Availability pair Deployment and configuration of HA pair Cisco Secure Firewalls Migration of existing legacy firewall configurations to the new environment Review and optimisation of migrated configurations in...

Principal Network Security Consultant A Global Financial Services Organisation requires a Contract Principal Network Security Consultant with deep expertise across network security architecture, WAF, F5, firewalls, network segmentation, VPNs and Legacy on-prem infrastructure. IR35 Status: Outside Day Rate: £600-£650pd Travel: 2 days a week in Central London Office Duration: Initial 6 months Responsibilities: Lead the refresh of the organisation's network security architecture and roadmap, providing senior technical direction across a complex, predominantly on-prem environment within a highly regulated banking/CNI setting. Provide deep network security expertise across WAF, network segmentation, Firewall architecture and rule sets, VPN connectivity and Legacy network infrastructure, acting as a senior consultant rather than a hands-on engineer. Drive the ongoing uplift of the F5 environment, with strong experience across F5 technologies essential; exposure to Palo...

VMware Consultant VCF Outside IR35 Contract VMware Consultant - VCF & NSX Specialist Contract Outside IR35 Remote We're working with a number of enterprise organisations looking for experienced VMware Consultants to support large-scale infrastructure transformation and cloud modernisation projects. This is an excellent opportunity to join high-profile programmes delivering VMware Cloud Foundation (VCF), NSX and enterprise migration projects for well-known organisations. What you'll be doing Deploying and configuring VMware Cloud Foundation (VCF) environments. Working with vSphere, SDDC Manager and VMware infrastructure technologies. Designing and implementing NSX networking and micro-segmentation solutions. Supporting enterprise infrastructure transformation and cloud migration projects. Providing technical consultancy throughout project lifecycles, from proof of concept through to production deployment. Working closely with architects, engineers and customer...

Join a technically ambitious environment where your Linux and HPC expertise will make an immediate impact on complex computational infrastructure. HPC & Linux Infrastructure Consultant Cambridge (Hybrid) £500-£550 / Day Outside IR35 - 3 Month Contract A genuinely hands-on HPC opportunity for an engineer who enjoys getting stuck into complex infrastructure. This is an opportunity to join a technically ambitious environment where your Linux and HPC expertise will have an immediate impact. You'll be brought in to assess and improve an existing computational platform, while also helping keep the underlying infrastructure running reliably day to day. You'll have the freedom to identify where things can be improved, make recommendations, and then get involved in delivering those changes. Role Style & Setup: This is a hands-on consulting engagement, rather than a pure review or advisory assignment. You'll work alongside the existing...

Join a technically ambitious environment where your Linux and HPC expertise will make an immediate impact on complex computational infrastructure. HPC & Linux Infrastructure Consultant Cambridge (Hybrid) £500-£550 / Day Outside IR35 - 3 Month Contract A genuinely hands-on HPC opportunity for an engineer who enjoys getting stuck into complex infrastructure. This is an opportunity to join a technically ambitious environment where your Linux and HPC expertise will have an immediate impact. You'll be brought in to assess and improve an existing computational platform, while also helping keep the underlying infrastructure running reliably day to day. You'll have the freedom to identify where things can be improved, make recommendations, and then get involved in delivering those changes. Role Style & Setup: This is a hands-on consulting engagement, rather than a pure review or advisory assignment. You'll work alongside the existing...

Network Security Engineer (SC Cleared) UK Remote/Hybrid 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance for a 6 Month Contract. Start ASAP in August/September 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Warwick, Wokingham, Corsham + Farnborough. Working with a global IT Consultancy supporting a leading Telecoms end client: Must have strong hands-on experience of: F5, Zscaler + Palo Alto technologies.  Checkpoint, Juniper, Bluecoat, Cisco Network Solutions Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of reference + escalation for Security related changes, modifications + projects for firewall rule bases. Technical point of contact for vendor support for security infrastructure incidents. Design of customer networks...

Network Security Engineer (SC Cleared) UK Remote/Hybrid 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance for a 6 Month Contract. Start ASAP in August/September 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Warwick, Wokingham, Corsham + Farnborough. Working with a global IT Consultancy supporting a leading Telecoms end client: Must have strong hands-on experience of: F5, Zscaler + Palo Alto technologies. Checkpoint, Juniper, Bluecoat, Cisco Network Solutions Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of reference + escalation for Security related changes, modifications + projects for firewall rule bases. Technical point of contact for vendor support for security infrastructure incidents. Design of...

Network Security Engineer (SC Cleared) UK Remote/Hybrid 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance for a 6 Month Contract. Start ASAP in August/September 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Warwick, Wokingham, Corsham + Farnborough. Working with a global IT Consultancy supporting a leading Telecoms end client: Must have strong hands-on experience of: F5, Zscaler + Palo Alto technologies. Checkpoint, Juniper, Bluecoat, Cisco Network Solutions Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of reference + escalation for Security related changes, modifications + projects for Firewall rule bases. Technical point of contact for vendor support for security infrastructure incidents. Design of...

A public sector organisation is seeking a Senior AWS Platform Engineer to join via a Consultancy to join a strategic programme delivering and evolving a cloud-based occupancy data platform hosted within AWS. The platform ingests and processes data from a range of sources including WiFi networks, IoT sensors and wider property technology systems, generating occupancy insights that support data-driven decision making across a large-scale estate. As the Senior AWS Platform Engineer you will play a key role in the design, build and support of the cloud infrastructure, integrations and automation capabilities that underpin the platform. This is an excellent opportunity for an experienced AWS specialist who enjoys solving complex technical challenges, building cloud-native services and working across platform engineering, DevOps and systems integration. This is an initial contract until May 2027 with potential to be extended, it is one day per week in the office in Central...

Job Title: Project Manager - Network & Security Day Rate: £450 per day - Outside IR35/Limited Company Duration: 6 months initially Location: Central London, near Bank Station - Fully onsite Start Date: ASAP Overview We are assisting a client in their requirement for an experienced Project Manager to lead the delivery of a Cisco network and security transformation programme. As Project Manager, you will take ownership of the end-to-end delivery, coordinating technical resources, stakeholders, third parties and business teams to ensure the migration is delivered successfully with minimal disruption to production services. Key Responsibilities Own and manage the project from initiation through design, build, migration, testing, cutover and handover into BAU. Develop and maintain the overall project plan, milestones, dependencies, RAID log and delivery schedule. Coordinate the deployment of the new Cisco Secure Firewall infrastructure, including FMC HA...

Job Title: Project Manager - Network & Security Day Rate: £450 per day - Outside IR35 / Limited Company Duration: 6 months initially Location: Central London, near Bank Station - Fully onsite Start Date: ASAP Overview We are assisting a client in their requirement for an experienced Project Manager to lead the delivery of a Cisco network and security transformation programme. As Project Manager, you will take ownership of the end-to-end delivery, coordinating technical resources, stakeholders, third parties and business teams to ensure the migration is delivered successfully with minimal disruption to production services. Key Responsibilities Own and manage the project from initiation through design, build, migration, testing, cutover and handover into BAU. Develop and maintain the overall project plan, milestones, dependencies, RAID log and delivery schedule. Coordinate the deployment of the new Cisco Secure Firewall infrastructure, including FMC...

Job Title: Project Manager - Network & Security Day Rate: £450 per day - Outside IR35 / Limited Company Duration: 6 months initially Location: Central London, near Bank Station - Fully onsite Start Date: ASAP Overview We are assisting a client in their requirement for an experienced Project Manager to lead the delivery of a Cisco network and security transformation programme. As Project Manager, you will take ownership of the end-to-end delivery, coordinating technical resources, stakeholders, third parties and business teams to ensure the migration is delivered successfully with minimal disruption to production services. Key Responsibilities Own and manage the project from initiation through design, build, migration, testing, cutover and handover into BAU. Develop and maintain the overall project plan, milestones, dependencies, RAID log and delivery schedule. Coordinate the deployment of the new Cisco Secure Firewall...