As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn’t changed — we’re here to stop breaches, and we’ve redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We're proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute to a culture of responsible AI adoption, experimentation, and innovation. We use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution, build expertise, uncover insights, and solve complex problems. We’re always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you. About the Role: CrowdStrike is seeking a Senior Network Engineer to join our Data Center & Cloud Network Engineering team. You will be responsible for the design, implementation, and operation of CrowdStrike's global cloud and data center network infrastructure. What You'll Do: Translate business requirements into practical network design, reference architectures, design patterns, HLDs, design reviews, runbooks, POCs, FOAs Design, operate, & implement global multi-vendor, multi-cloud, hybrid data center networks at scale while driving network performance & resiliency Deploy and manage cloud constructs such as subnet allocations, routing-tables/associations, VPCs, VPC-peering/PrivateLink, Hub-spoke topologies, gateways, 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) What You 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. Bonus Points: 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 #LI-GO1 #LI-HYBRID Benefits of Working at CrowdStrike: 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 CrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued for who they are and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program. CrowdStrike is committed to providing equal employment opportunity for all employees and applicants for employment. The Company does not discriminate in employment opportunities or practices on the basis of race, color, creed, ethnicity, religion, sex (including pregnancy or pregnancy-related medical conditions), sexual orientation, gender identity, marital or family status, veteran status, age, national origin, ancestry, physical disability (including HIV and AIDS), mental disability, medical condition, genetic information, membership or activity in a local human rights commission, status with regard to public assistance, or any other characteristic protected by law. We base all employment decisions--including recruitment, selection, training, compensation, benefits, discipline, promotions, transfers, lay-offs, return from lay-off, terminations and social/recreational programs--on valid job requirements. If you need assistance accessing or reviewing the information on this website or need help submitting an application for employment or requesting an accommodation, please contact us at recruiting@crowdstrike.com for further assistance. CrowdStrike was founded in 2011 to fix a fundamental problem: The sophisticated attacks that were forcing the world’s leading businesses into the headlines could not be solved with existing malware-based defenses. Founder George Kurtz realized that a brand new approach was needed — one that combines the most advanced endpoint protection with expert intelligence to pinpoint the adversaries perpetrating the attacks, not just the malware. There’s much more to the story of how Falcon has redefined endpoint protection but there’s only one thing to remember about CrowdStrike: We stop breaches.

Sr. Network Engineer - Data Center and Cloud (Hybrid, London).

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