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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # CNI Infrastructure Engineer - **Company:** National Grid - **Location:** UK - **Salary:** £54,000.0 - £65,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Backup Devices, Bash Shell, Border Gateway Protocol, Data Centers, Dynamic Host Configuration Protocol, Linux, Disaster Recovery, Domain Name System (DNS), Middleware, VMware ESX Servers, Github, Identity and Access Management, Information Technology Operations, Virtual Private Networks (VPN), Python (Programming Language), Linux System Administration, Routing, Network Segmentation, Open Shortest Path First (OSPF), Performance Tuning, Windows PowerShell, Ansible, TCP/IP, Virtual Local Area Networks, VMware VSphere, Software Vulnerability Management, Wide Area Networks, Backup and Restore, Scripting, Load Balancing, System Availability, Virtual Environment, Firewalls (Computer Science), Infrastructure as Code (IaC), Gitlab-ci, Data Management, Veeam, Terraform, Vmware - **Published:** August 7, 2026 - **Apply:** https://www.totaljobs.com/job/infrastructure-engineer/national-grid-job107808180 ## About the Role You're someone who thrives in complex technical environments and loves getting under the hood of enterprise infrastructure. You bring a blend of solid engineering fundamentals, problem-solving instincts, and a curiosity to keep learning. Here's what you'll bring to the team: * A deep understanding of enterprise IT infrastructure - from compute and storage to backups, networks, operating systems (Windows/Linux), and middleware. * Experience with Infrastructure as Code, using tools like Terraform and Ansible to build and manage environments more efficiently. * Scripting capabilities in PowerShell, Bash, or Python - and a willingness to automate anything that can (and should!) be automated. * Strong, hands-on experience with Linux systems in enterprise environments, including installation, configuration, administration, troubleshooting, performance tuning, patching, and security hardening. * Strong knowledge of Active Directory Domain Services, with the ability to design, manage, and troubleshoot directory-based environments. * Hands-on virtualisation expertise, especially with VMware vSphere and VCF. * A confident grasp of networking essentials, including TCP/IP, DNS, DHCP, routing, switching, and firewalls. * Familiarity with backup and disaster recovery strategies, high-availability designs, and business continuity principles. * Knowledge of modern storage solutions such as vSAN, NAS, and object storage platforms. * A proven track record of solving tricky, multi-layered technical issues, often across several technologies at once. * Excellent communication skills, with the ability to translate complex technical concepts into clear, understandable language for non-technical stakeholders. ## Description Join National Grid's CNI Operations Team as a CNI Infrastructure Engineer, where you'll be at the heart of keeping the UK's critical national infrastructure running safely, securely, and at scale. This is a role with real purpose - the work you do will directly support systems that millions of people rely on every day. In this role, you'll be at the forefront of designing, building and maintaining automation solutions that eliminate manual effort, boost reliability, and accelerate the delivery of IT operations. You won't just support change-you'll lead it, modernising and enhancing how we work across our data centres, networks, and platform environments. Your focus will be on automating the end-to-end lifecycle of our private cloud infrastructure-from provisioning and configuration to monitoring and day-to-day operational routines. You'll help us unlock new levels of speed, efficiency and consistency across our estate. What You'll Do As a CNI Infrastructure Engineer, you'll be a driving force behind transforming how National Grid delivers and operates mission-critical technology. Your work will directly accelerate efficiency, resilience, and innovation across our private cloud and infrastructure landscape. In this role, you will: * Build infrastructure the modern way, developing and maintaining Infrastructure as Code (IaC) using tools such as Terraform and Ansible * Create reusable, scalable automation assets, including scripts, modules, and frameworks * Develop and optimise CI/CD pipelines using platforms like GitHub Actions and GitLab CI * Engineer automation solutions using Python, PowerShell or Bash * Take ownership of our core server estate, managing and optimising physical and virtual environments, including VMware VCF and ESXi * Deliver robust Linux administration across enterprise environments, covering installation, configuration, patching, and system hardening * Administer enterprise storage solutions (SAN/NAS, object storage) and backup technologies such as Veeam * Engineer and maintain resilient networking environments across LAN/WAN, SD-WAN, VLANs, BGP/OSPF, VPNs, load balancers, and firewalls * Support platform reliability through monitoring, troubleshooting, performance optimisation, and capacity planning * Contribute to incident response, root cause analysis, and 24/7 on-call support where required * Drive automation of operational processes, reducing manual effort and improving efficiency * Champion security best practices across patching, vulnerability management, IAM, and network segmentation * Collaborate with SRE, security, application, and architecture teams on new services and complex changes * Support disaster recovery planning and testing, ensuring high availability and resilience across the platform, * We are also offering hybrid /flexible working. Base location for this role will be NG House, Warwick. * This role closes on 30th June however we strongly encourage candidates to submit their application as early as possible. **Please note that in most cases, National Grid is unable to offer sponsorship for employment under the UK points-based immigration system. As such, applicants must have the legal right to work in the UK without requiring sponsorship now or in the future under the UK points-based immigration system. However, in exceptional circumstances where there is a clear and demonstrable need for specialist skills that cannot be sourced from the local labour market, National Grid may consider offering sponsorship. All applications are welcome from candidates who meet these requirements, regardless of race, nationality, or ethnic origin.** ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)