Network EngineerExcellent opportunity to join a growing technology organisation delivering large-scale ISP and data centre services across multiple countries.Full-time, permanent role focused on network operations, troubleshooting, and infrastructure support within a high-availability environment.Hands-on position working across routers, switches, firewalls, and Linux-based systems, with exposure to automation tools and modern network practices.Hybrid role based in Sheffield with occasional travel to data centres or exchange sites.To apply, please email Who is the client?Our client is an established technology provider delivering connectivity and infrastructure services to hundreds of thousands of users across multiple countries. They are known for operating at scale within ISP and data centre environments, with a strong focus on reliability, performance, and continuous improvement. Due to ongoing growth, they are expanding their network team and are looking for a Network Engineer to support and optimise their core infrastructure.What will you be doing?As a Network Engineer, you'll be responsible for supporting the day-to-day operation of core network infrastructure, ensuring performance, reliability, and availability across a large-scale environment.You'll monitor, maintain, and troubleshoot routers, switches, and firewalls, resolving escalated issues and implementing configuration changes in line with best practice. The role also involves supporting new site deployments and contributing to network performance analysis and capacity planning.Alongside operational responsibilities, you'll have the opportunity to get involved in automation initiatives, working with tools such as Python, Ansible, or Terraform to improve efficiency and scalability. You'll collaborate closely with support teams, senior engineers, and wider technology functions to ensure seamless service delivery.What will you need?Solid understanding of networking principles (TCP/IP, DNS, DHCP)Hands-on experience with routers, switches, and firewallsStrong Linux skillsExperience within a technical support or network support environmentProven troubleshooting and problem-solving abilityExperience supporting or resolving escalated issues (1st/2nd line)Strong communication and organisational skillsWhat would be desirable?Experience with Python or other scripting/automation toolsFamiliarity with Ansible, Terraform, or infrastructure-as-codeKnowledge of routing protocols such as OSPF or BGPExperience with network monitoring tools (Grafana, Nagios, LibreNMS)Background in ISP, NOC, or data centre environmentsExposure to network OS such as Arista EOS or MikroTik RouterOSPrevious on-call or incident response experienceThe Package£33,000-£38,000 salary (DOE)On call allowanceHybrid working modelBonus scheme (profit share)Birthday day offFlexible holiday schemeOngoing technical development and trainingOpportunity to work within a large-scale, high-performance network environmentTo ApplyPlease apply directly through this advert or email your CV to By applying, you consent to your application being processed and submitted to the client for this vacancy only.KEY SKILLS - Network Engineer, Network Support Engineer, NOC Engineer, TCP/IP, DNS, DHCP, Routing & Switching, Firewalls, Linux, ISP, Data Centre, Automation, Python, Ansible, Terraform, Networking InfrastructureJBRP1_UKTJ