Are you ready to lead the design and deployment of secure, enterprise‑grade networking platforms? We're looking for a Lead Infrastructure Engineer – Networking to join our Aerospace, Defence and Security Sector (ADS) team in Hemel Hempstead. This is a full‑time, on‑site role with occasional travel to client sites. You must hold active DV clearance to be considered. You'll be part of a collaborative, delivery‑focused team that thrives on precision and structure. We work together to solve complex challenges, share knowledge, and deliver robust, secure systems that meet critical national security requirements. You'll have direct influence on project delivery as a subject‑matter expert in networking, applying strict governance and security principles throughout.
Responsibilities
* Designing and deploying multi‑site enterprise hardware platforms using COTS networking.
* Creating datacentre layouts, rack configurations, and cabling schematics.
* Specifying and managing hardware components across the delivery lifecycle.
* Documenting low‑level designs, procedures, and disaster recovery instructions.
* Acting as the go‑to expert for hardware and datacentre‑related matters.
* Supporting hardware implementation and integration within secure environments.
Requirements
* Active DV clearance.
* Strong hands‑on experience managing and configuring network platforms.
* Expertise in fault‑tolerant networking solutions.
* Solid understanding of enterprise hardware installation and resilient design principles.
* Proficiency in networking across multi‑technology solutions.
* Knowledge of networking in Windows Server/Client and virtual environments.
Preferred Qualifications
* Cisco certifications.
* Experience with infrastructure automation tools such as Ansible and Terraform.
* Understanding of datacentre power and cooling requirements.
* Familiarity with secure environments and regulations (JSP 440, JSP 604, SCIDA).
* Experience with monitoring tools like SCOM and Splunk Enterprise.
Although this role is advertised as full‑time, we believe flexibility at work promotes balance, motivation and performance. If you need to work flexibly, we encourage you to apply and talk to us about what might be possible.
Sopra Steria’s Aerospace, Defence and Security business designs, develops and deploys digital solutions to Central Government clients. The work we do makes a real difference to the client’s goal of National Security, and we operate in a unique and privileged environment. We are given time for professional development activities, and we coach and mentor our colleagues, sharing knowledge and learning from each other. We foster a culture in which employees feel valued and supported and have pride in their work for the customer, delivering outstanding rates of customer satisfaction in the UK’s most complex safety‑ and security‑critical markets.
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