26 to 50 of 76 Senior Network Engineer Jobs in England

Senior Network Infrastructure Engineer Hybrid Working 2 days on site a week Our client, a large and forward-thinking organisation is urgently seeking a Senior Network Infrastructure Engineer to join their Head Office team in Hertfordshire. This is an exciting opportunity for an experienced and motivated engineer with a solid background in network design, multi-site infrastructure, and on-premises and hybrid environments. The Role As a Senior Network Infrastructure Engineer, you will play a pivotal role in designing, maintaining, and evolving the organisation's network and infrastructure, supporting a multi-office WAN environment . You'll be responsible for: Designing, implementing, and optimising network infrastructure across … multiple sites Managing and maintaining Routers, Switches, Firewalls, and SAN storage Leading and contributing to the transition to enterprise-grade network solutions (Juniper, Cisco, or Fortinet Supporting Windows Server, Active Directory, and VMware environments Ensuring reliability, performance, and scalability across all network and server systems Working across on-premises, Azure, and Microsoft 365 hybrid environments Essential Skills & Experience More ❯

team to shape and deliver our strategic goals but also partner with the business functions to embed the values, behaviours and strategic ambitions. Summary of the role: As our Senior Network Engineer, you will be responsible for designing, implementing, and securing complex network infrastructures across multiple sites and cloud environments. This role requires deep expertise in … Fortinet, Cisco & other network technologies, with a strong focus on network security, SD-WAN, and cloud networking. The engineer will lead operational activities, manage third-party vendors, and oversee site setups, including mobile connectivity via 4G/5G and Starlink. A key part of the role involves team leadership, security posturing, and ensuring the resilience and compliance … of all network services. Responsibilities : As our Senior Network Engineer, you will: Design, deploy, and maintain LAN/WAN infrastructure across corporate offices, data centres and all Dalkia sites. Configure, manage, and troubleshoot network security appliances and firewalls, particularly Fortinet FortiGate. Maintain and optimise switching and routing environments. Support and enhance SD-WAN solutions, ensuring More ❯

team to shape and deliver our strategic goals but also partner with the business functions to embed the values, behaviours and strategic ambitions. Summary of the role: As our Senior Network Engineer, you will be responsible for designing, implementing, and securing complex network infrastructures across multiple sites and cloud environments. This role requires deep expertise in … Fortinet, Cisco & other network technologies, with a strong focus on network security, SD-WAN, and cloud networking. The engineer will lead operational activities, manage third-party vendors, and oversee site setups, including mobile connectivity via 4G/5G and Starlink. A key part of the role involves team leadership, security posturing, and ensuring the resilience and compliance … of all network services. Responsibilities : As our Senior Network Engineer, you will: Design, deploy, and maintain LAN/WAN infrastructure across corporate offices, data centres and all Dalkia sites. Configure, manage, and troubleshoot network security appliances and firewalls, particularly Fortinet FortiGate. Maintain and optimise switching and routing environments. Support and enhance SD-WAN solutions, ensuring More ❯

team to shape and deliver our strategic goals but also partner with the business functions to embed the values, behaviours and strategic ambitions. Summary of the role: As our Senior Network Engineer, you will be responsible for designing, implementing, and securing complex network infrastructures across multiple sites and cloud environments. This role requires deep expertise in … Fortinet, Cisco & other network technologies, with a strong focus on network security, SD-WAN, and cloud networking. The engineer will lead operational activities, manage third-party vendors, and oversee site setups, including mobile connectivity via 4G/5G and Starlink. A key part of the role involves team leadership, security posturing, and ensuring the resilience and compliance … of all network services. Responsibilities : As our Senior Network Engineer, you will: Design, deploy, and maintain LAN/WAN infrastructure across corporate offices, data centres and all Dalkia sites. Configure, manage, and troubleshoot network security appliances and firewalls, particularly Fortinet FortiGate. Maintain and optimise switching and routing environments. Support and enhance SD-WAN solutions, ensuring More ❯

team to shape and deliver our strategic goals but also partner with the business functions to embed the values, behaviours and strategic ambitions. Summary of the role: As our Senior Network Engineer, you will be responsible for designing, implementing, and securing complex network infrastructures across multiple sites and cloud environments. This role requires deep expertise in … Fortinet, Cisco & other network technologies, with a strong focus on network security, SD-WAN, and cloud networking. The engineer will lead operational activities, manage third-party vendors, and oversee site setups, including mobile connectivity via 4G/5G and Starlink. A key part of the role involves team leadership, security posturing, and ensuring the resilience and compliance … of all network services. Responsibilities : As our Senior Network Engineer, you will: Design, deploy, and maintain LAN/WAN infrastructure across corporate offices, data centres and all Dalkia sites. Configure, manage, and troubleshoot network security appliances and firewalls, particularly Fortinet FortiGate. Maintain and optimise switching and routing environments. Support and enhance SD-WAN solutions, ensuring More ❯

team to shape and deliver our strategic goals but also partner with the business functions to embed the values, behaviours and strategic ambitions. Summary of the role: As our Senior Network Engineer, you will be responsible for designing, implementing, and securing complex network infrastructures across multiple sites and cloud environments. This role requires deep expertise in … Fortinet, Cisco & other network technologies, with a strong focus on network security, SD-WAN, and cloud networking. The engineer will lead operational activities, manage third-party vendors, and oversee site setups, including mobile connectivity via 4G/5G and Starlink. A key part of the role involves team leadership, security posturing, and ensuring the resilience and compliance … of all network services. Responsibilities : As our Senior Network Engineer, you will: Design, deploy, and maintain LAN/WAN infrastructure across corporate offices, data centres and all Dalkia sites. Configure, manage, and troubleshoot network security appliances and firewalls, particularly Fortinet FortiGate. Maintain and optimise switching and routing environments. Support and enhance SD-WAN solutions, ensuring More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco environments … performance, security, and reliability. You’ll join a collaborative and technically accomplished team that’s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry’s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you’ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco environments … performance, security, and reliability. You’ll join a collaborative and technically accomplished team that’s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry’s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you’ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco environments … performance, security, and reliability. You’ll join a collaborative and technically accomplished team that’s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry’s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you’ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco environments … performance, security, and reliability. You’ll join a collaborative and technically accomplished team that’s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry’s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you’ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco environments … performance, security, and reliability. You’ll join a collaborative and technically accomplished team that’s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry’s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you’ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco … performance, security, and reliability. You ll join a collaborative and technically accomplished team that s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on More ❯

Senior Network Engineer - SDWAN 2 days a week in the office Up to £65k Harrogate Permanent Looking for a Senior Network Engineer to work and deliver on SDWAN projects for our clients. Technical Skills SDWAN design and implementation (Fortinet, Meraki) Network configuration and troubleshooting (firewalls, routers, switches) Knowledge of WAN and LAN technologies More ❯

Senior Network Engineer - SDWAN 2 days a week in the office Up to £65k Harrogate Permanent Looking for a Senior Network Engineer to work and deliver on SDWAN projects for our clients. Technical Skills SDWAN design and implementation (Fortinet, Meraki) Network configuration and troubleshooting (firewalls, routers, switches) Knowledge of WAN and LAN technologies More ❯

Senior Network Engineer - SDWAN 2 days a week in the office Up to £65k Harrogate Permanent Looking for a Senior Network Engineer to work and deliver on SDWAN projects for our clients. Technical Skills SDWAN design and implementation (Fortinet, Meraki) Network configuration and troubleshooting (firewalls, routers, switches) Knowledge of WAN and LAN More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team!Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police … at either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do:As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key … Responsibilities: Utilise network management tools to monitor network and voice traffic loads and performance metrics, ensuring service levels are met. Create insightful reports and proposals for network improvements to support business needs. Identify and resolve operational problems and implement necessary network changes and maintenance routines. Coach and mentor junior network engineers, fostering a culture of More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team! Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police … at either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do: As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key … Responsibilities: Utilise network management tools to monitor network and voice traffic loads and performance metrics, ensuring service levels are met. Create insightful reports and proposals for network improvements to support business needs. Identify and resolve operational problems and implement necessary network changes and maintenance routines. Coach and mentor junior network engineers, fostering a culture of More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team!Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police … at either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do:As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key … Responsibilities: Utilise network management tools to monitor network and voice traffic loads and performance metrics, ensuring service levels are met. Create insightful reports and proposals for network improvements to support business needs. Identify and resolve operational problems and implement necessary network changes and maintenance routines. Coach and mentor junior network engineers, fostering a culture of More ❯

Senior Network Engineer - SDWAN 2 days a week in the office Permanent Looking for a Senior Network Engineer to work and deliver on SDWAN projects for our clients. SDWAN design and implementation (Fortinet, Meraki) Network configuration and troubleshooting (firewalls, routers, switches) Project management and documentation More ❯

I'm currently seeking a hands-on Senior Network Engineer on a contract basis for my client to deliver critical network transformation projects across our hybrid (on-premises and cloud) environments. This role requires deep technical expertise in network architecture, operations, and cybersecurity best practices, with a strong focus on execution and delivery. Engagement Scope … Deliver a network refresh (firewall, switches, and routers) across both office and Birmingham data centre. Assist the DevOps team in establishing connectivity to a major critical infrastructure services provider via a dedicated MPLS circuit. Lead the design and implementation of a network segmentation project in AWS, separating production and non-production environments. Key Responsibilities: Design, implement, and support … enterprise network infrastructure across Cisco and Palo Alto on-premises environments, and Azure/AWS cloud platforms. Lead deployment and optimisation of SD-WAN and SASE/SSE technologies (e.g., Netskope, Zscaler, Cisco Umbrella). Manage and maintain secure network architectures including firewalls, VPNs, switching, routing, and load balancing (HAProxy). Monitor, analyse, and optimise network performance More ❯

I'm currently seeking a hands-on Senior Network Engineer on a contract basis for my client to deliver critical network transformation projects across our hybrid (on-premises and cloud) environments. This role requires deep technical expertise in network architecture, operations, and cybersecurity best practices, with a strong focus on execution and delivery. Check all … associated application documentation thoroughly before clicking on the apply button at the bottom of this description. Engagement Scope: Deliver a network refresh (firewall, switches, and routers) across both office and Birmingham data centre. Assist the DevOps team in establishing connectivity to a major critical infrastructure services provider via a dedicated MPLS circuit. Lead the design and implementation of a … network segmentation project in AWS, separating production and non-production environments. Key Responsibilities: Design, implement, and support enterprise network infrastructure across Cisco and Palo Alto on-premises environments, and Azure/AWS cloud platforms. Lead deployment and optimisation of SD-WAN and SASE/SSE technologies (e.g., Netskope, Zscaler, Cisco Umbrella). Manage and maintain secure network More ❯

Senior Network Infrastructure Engineer ABOUT THE ROLE This is your chance to join a truly iconic Midlands retail group. Due to ongoing company expansion, we now have an opportunity for a Senior Network Infrastructure Engineer to join my clients team. We are looking for a motivated and ambitious individual who is able to prioritise … multiple tasks and deadlines. Reporting into Senior IT Management, you... More ❯

Senior Network Infrastructure Engineer ABOUT THE ROLE This is your chance to join a truly iconic Midlands retail group. Due to ongoing company expansion, we now have an opportunity for a Senior Network Infrastructure Engineer to join my clients team. We are looking for a motivated and ambitious individual who is able to prioritise More ❯

Senior Network Engineer When registering to this job board you will be redirected to the online application form. Please ensure that this is completed in full in order that your application can be reviewed. Come and join the Littlefish team! Work location: Nottingham or Sheffield hybrid. The current team collaboration day is Wednesday. Salary: Up to … The role and what youll be getting up to on a day to day basis: At Littlefish, we dont just fix networks weredefinethem. Were on the lookout for aSenior Network Engineerwhos not only technical but thrives on mentoring others, solving complex challenges, and shaping the future of our infrastructure. This isnt your average engineering role. Youll be the go … If youre ready to lead from the front and make a real impact we want to hear from you. You will be: Leading a small but mighty team of network engineers. Owning complex technical issues and high-priority customer tickets. Acting as a senior escalation point and subject matter expert. Driving best practices, automation, and future tech adoption. More ❯

specialisms. We provide technical expertise, governance, policy, guidance and support to the business units to provide a high-quality service to their own people and their clients. As our Senior Network Engineer, you will be responsible for designing, implementing, and securing complex network infrastructures across multiple sites and cloud environments. This role requires deep expertise in … Fortinet, Cisco & other network technologies, with a strong focus on network security, SD-WAN, and cloud networking. A key part of the role involves team leadership, security posturing, and ensuring the resilience and compliance of all network services. As our Senior Network Engineer, you will: Design, deploy, and maintain LAN/WAN infrastructure across … corporate offices, data centres and all Dalkia sites. Configure, manage, and troubleshoot network security appliances and firewalls, particularly Fortinet FortiGate. Support and enhance SD-WAN solutions, ensuring high availability and performance across remote sites. Administer and troubleshoot complex BGP configurations and other routing protocols (OSPF, EIGRP). Oversee daily network operations tasks, including monitoring, patching, backups, performance tuning More ❯