Skip to main content

To top

Principal Network Engineer (Data Centre)


Principal Network Engineer (Data Centre)

Job Category



THG Tech


Manchester, United Kingdom

Job Type


THG is a fast-moving, global technology business that specialises in taking brands direct to consumers. Our world-class proprietary tech and infrastructure powers our extensive portfolio of beauty, nutrition and lifestyle brands and is now helping drive exponential growth of our clients’ brands globally.  

We’re powered by a global team of over 10,000 ambitious people around the world. Our culture is fast-paced and entrepreneurial, it’s this DNA that has supported our incredible growth.

We’re always looking for individuals that can bring fresh and innovative thinking to THG, and play a part in driving the group forward on its exciting journey. So, if you’re ready to take the next big step in your career, challenge yourself every day and evolve with the world around you, THG is ready for you. 

About Ingenuity

THG Ingenuity solves global and local challenges for its partners, including, Nestle, P&G and Hotel Chocolat by delivering a seamless, effective and scalable direct-to-consumer retail model by incorporating all the required components for global digital commerce into a single, digital platform. This enables THG to offer brands access to every product and service required to launch and scale a global e-commerce solution through a single SaaS relationship, which eradicates the complexity and cost of multi-partner relationships.  Built to empower both brands and customers alike, the Ingenuity ecosystem takes all the pieces needed for successful e-commerce propositions, and places them under one roof.

About the Network team and Your Role

As a function of the Global Infrastructure Services department, the Network team is charged with designing, operating and maintaining global network infrastructure as well as public and private network connectivity for the Group. Services are broadly categorized into Data Centre networking, Global Connectivity, Product Development, Enterprise networking and Customer Operations.

Reporting directly to the Head of Networks, the role is responsible for ongoing technical development and delivery of Data Centre network infrastructures and associated services across the Group.

  • Take responsibility for the technical development, implementation and maintenance of data centre network infrastructures globally.
  • Develop deep technical skills and become subject matter expert (SME) in data centre networking tech stack – e.g. switching fabric architecture, firewalling, load balancing as well as virtualized and container networking.
  • Continually learn new technologies and approaches, seeking best-practice implementations for THG to improve data centre reliability, quality, automation and cost-efficiency. Promote sharing of this with all team mates to evangelize new approaches.
  • Ensure data centre network architectures are scalable, fit-for-purpose and robust, underpinning and supporting mission critical workloads such that they can run anywhere within the network.
  • With a focus on what customer success looks like, aim to ensure data centre network services are designed to support a variety of customer workloads – be that bare metal, hypervisor/virtualized or cloud-native platforms.
  • Collaborate with peers and colleagues across the business to produce both short- and mid-term plans for the data centre technology stack. This includes regular maintenance activities such as software upgrades and audits.
  • Define use cases for automation within the data centre space, collaborating with automation colleagues to define their implementation.
  • Day-to-day supervision of a small team of network engineers, enabling you to execute to plan and deliver both internal and business-sponsored projects on time.
  • Participate in the network on-call schedule with colleagues between the UK and US to ensure mission critical services have appropriate operational and/or escalation-level support.


Role Requirements

  • Solid knowledge of data centre networking technologies and protocols, including but not limited to
    • Leaf, Spine, Super-Spine Clos architectures
    • MP-BGP, BGP-EVPN, VXLAN, GENEVE and associated mechanisms
    • Virtualization (e.g. KVM/VMware) and cloud-native (Docker, Kubernetes) architectures are desirable
  • Hands-on experience configuring the following products
    • Ethernet/IP switching products devices from Cisco and/or Arista are essential.
    • Disaggregated switching products such as Mellanox running network operating systems (NOS) such as Cumulus Linux is mandatory (SONiC would be advantageous).
    • Security/firewalling products from Fortinet (specifically FortiGate and/or Cisco ASA)
    • Application delivery controllers from Citrix (specifically NetScaler). Experience with HA Proxy and/or Nginx advantageous.
  • Experience in network automation techniques with Python and/or Ansible with version control systems such as Git is essential. This will preferably include exposure to REST APIs, NETCONF, gNMI, etc.
  • Exposure to Linux administration and docker containers would be advantageous.
  • Understanding of monitoring requirements and hands-on knowledge of open source monitoring tools (e.g. LibreNMS, InfluxDB/Grafana).
  • Occasional travel to work in remote sites/locations as required by the business.
  • Desire to learn and deepen personal knowledge of networking technology.
  • “Make-it-happen” attitude and ownership to all activities.


Opening Date: 16/05/2023

Closing Date: 30/05/2023

Salary: Competitive

Because of the high volumes of applications our opportunities attract, it sometimes takes us time to review and consider them all. We endeavour to respond to every application we receive within 14 days. If you haven't heard from us within that time frame or should you have any specific questions about this or other applications for positions at THG please contact one of our Talent team to discuss further. 

THG is committed to creating a diverse & inclusive environment and hence welcomes applications from all sections of the community. 

Apply for this job