Senior Network Engineer

Salary: £45,000 - 83,000 per year

Requirements:

• 8+ years of hands-on network engineering experience, with a strong focus on corporate office environments
• Expertise in Cisco and/or Juniper switching and routing, including BGP, OSPF, VLAN design, and QoS
• Solid experience with enterprise Wi-Fi platforms such as Cisco Meraki, Aruba, or equivalent
• Proven track record delivering network buildouts or major refits in a corporate or financial services environment
• Experience with SD-WAN technologies such as Meraki, Fortinet, or similar
• Strong understanding of network security principles, including firewalls, network segmentation, and 802.1X
• Familiarity with MPLS, VPLS, and internet circuit procurement
• Experience working with third-party vendors and ISPs across multiple geographies
• Comfortable working in a regulated environment, with PCI-DSS and SOC2 awareness as a plus
• CCNP / CCIE (Routing & Switching) is desirable
• Fortinet NSE 4-7 (Network Security) is desirable
• Exposure to network automation tooling such as Ansible, Python, and NetBox is desirable
• Experience with ITSM platforms such as Jira Service Management or ServiceNow is desirable
• Experience with network monitoring tools such as LogicMonitor, SolarWinds, Elasticsearch, Grafana, Splunk, or Datadog is desirable
• Familiarity with data centre networking concepts and their integration with corporate office networks is desirable

Responsibilities:

• Own the design, delivery, and ongoing optimisation of our corporate office network infrastructure globally
• Define and maintain global network architecture standards for corporate office environments across LAN, WAN, Wi-Fi, and SD-WAN
• Develop and maintain network build standards, configuration templates, and technical runbooks
• Ensure all designs meet FinTech regulatory and security requirements
• Own the reference architecture and standard design patterns used for new office deployments and office expansions
• Provide escalation support for network incidents across all office locations, leading root cause analysis and driving permanent fixes
• Own end-to-end network observability across all office environments, including monitoring, telemetry, packet loss, bandwidth utilisation, and device health
• Ensure Wi-Fi and network performance delivers a high-quality employee experience across all office locations
• Define and track network SLAs and KPIs for office environments, with regular reporting to IT leadership
• Champion a user-first approach to network performance and proactively resolve degradation before it generates tickets
• Work closely with IT Engineering and AV teams to ensure a seamless connectivity experience for meeting rooms, collaboration tools, and hybrid working
• Drive continuous improvement initiatives based on monitoring data, user feedback, and post-incident reviews
• Lead end-to-end network delivery for new office openings and major refits globally, from initial scoping and design through to commissioning and handover
• Engage and manage third-party vendors, cabling contractors, and ISPs to ensure on-time, on-budget delivery
• Conduct site surveys and produce detailed network designs, rack layouts, and cabling schematics
• Ensure all office network deployments adhere to global architecture standards and security requirements
• Produce high- and low-level network design documentation for office network deployments
• Partner with Real Estate, Workplace, GTSO teams, and senior IT leadership to plan and scope network requirements for new and changing office locations
• Produce clear technical documentation and present designs to both technical and non-technical stakeholders
• Manage project timelines, risks, and dependencies across concurrent office programmes

Technologies:

• Ansible
• Aruba
• Cisco
• Datadog
• ElasticSearch
• Grafana
• Support
• ITSM
• JIRA
• LAN
• MPLS
• Network
• Python
• Security
• ServiceNow
• Splunk

More:

We are Checkout.com, a fast-growing global FinTech company powering digital payments for leading brands and enabling over 10 billion transactions yearly for more than one billion global shoppers. We operate across six continents with 20 offices worldwide and our HQ in London. We offer a hybrid working model with three days per week in the office, a collaborative team environment, and a culture built around ownership, impact, and growth. We support accessibility needs in our hiring process and create conditions for high performers to thrive.

last updated 34 week of 2026