Senior Network Engineer – Data Center, Cloud

CrowdStrike

Senior Network Engineer designing and operating CrowdStrike’s global cloud and data center networks. Building automated, resilient infrastructure for the cybersecurity platform.

Posted 9/3/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and implementing complex multi-cloud and hybrid data center networks, utilizing automation tools and frameworks to enhance network performance and compliance with regional standards. Proven ability to troubleshoot production issues and drive agile projects to successful completion.

Highest-signal resume keywords

Network Design & ArchitectureMulti-Cloud NetworkingInfrastructure as Code (IaC)Agile Project ManagementNetwork Compliance Standards

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

IPv4/IPv6AnycastMP-BGPOSPF/IS-ISMPLSEVPN/VxLANL3VPNLoad-BalancingAutomation FrameworksAI Technologies

Soft Skills

Independent Problem SolvingCross-Functional Collaboration

Tools & Technologies

AnsibleTerraformPythonGoCI/CD PipelineOpenStackSONiCFRR

Certifications & Qualifications

CCIEJNCIEAWS ProfessionalGCP ProfessionalOCI ProfessionalAzure Professional

Industry Keywords

Cyber Essentials PlusISO 27001GDPRPCI-DSSUK G-CloudSovereign Cloud

Tech Stack

Tools & technologies

AnsibleAWSAzureChefCloudGoGoogle Cloud PlatformOpen SourceOpenStackPythonTerraform

About the role

Key responsibilities & impact

Translate business requirements into practical network design, reference architectures, design patterns, HLDs, design reviews, runbooks, POCs, FOAs
Design, operate, and implement global multi-vendor, multi-cloud, hybrid data center networks at scale while driving network performance and resiliency
Deploy and manage cloud constructs such as subnet allocations, routing-tables/associations, VPCs, VPC-peering/PrivateLink, Hub-spoke topologies, gateways, and direct connects
Develop and maintain IaC (ansible, Terraform) and automation tooling throughout CI/CD pipeline (Python, Go) to provision networks at scale, while improving the efficiency and velocity of network deployments
Troubleshoot complex production issues and contribute to incident root-cause analysis
Participate in on-call rotations
Implement network solutions meeting regional compliance and data sovereignty requirements (ISO 27001, Cyber Essentials Plus, UK G-Cloud, EU data residency / GDPR, PCI-DSS)
Design, implement, and operate CrowdStrike's global cloud and data center network infrastructure

Requirements

What you’ll need

Proven track record in driving agile cross-functional projects to completion independently with minimal supervision
7+ years expert design & hands-on experience of IPv4/IPv6, Anycast, MP-BGP, OSPF/IS-IS, MPLS, EVPN/VxLAN, L3VPN, CLOS, QoS, Load-balancing, MACsec, and IPsec
5+ years practical multi-cloud networking experience deploying and supporting cloud connectivity at hyperscaler, CSP or security company
Extensive experience in deploying and maintaining large networks using version control, automation frameworks (ansible, Terraform, Chef) and scripts & templating (bash, python, go, jinja, YAML, JSON)
Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes
CCIE/JNCIE, AWS/GCP/OCI/Azure (Professional) Certifications
Hyperscaler/CSP background (AWS, GCP, MSFT, OCI or similar)
OpenStack / SONiC / Whitebox, FRR, open source network infrastructure experience
AI/GPU cluster networking fabrics (RDMA, RoCE, InfiniBand)
UK Government, G-Cloud, or Sovereign cloud experience

Benefits

Comp & perks

Market leader in compensation and equity awards
Comprehensive physical and mental wellness programs
Competitive vacation and holidays for recharge
Paid parental and adoption leaves
Professional development opportunities for all employees regardless of level or role
Employee Networks, geographic neighborhood groups, and volunteer opportunities to build connections
Vibrant office culture with world class amenities
Great Place to Work Certified™ across the globe