At a Glance
- Tasks: Design and implement cutting-edge multi-cloud networks while driving performance and resiliency.
- Company: Join CrowdStrike, a global leader in cybersecurity with a mission to stop breaches.
- Benefits: Enjoy competitive salary, equity awards, wellness programs, and flexible work options.
- Other info: Be part of a collaborative team with excellent career growth opportunities.
- Why this job: Make a real impact in cybersecurity using advanced AI technologies and innovative solutions.
- Qualifications: 7+ years of networking experience and expertise in cloud connectivity.
The predicted salary is between 65000 - 105000 £ per year.
Requirements
- Proven track record of driving agile cross-functional projects to completion independently with minimal supervision
- 7+ years of expert design and hands-on experience with IPv4/IPv6, Anycast, MP-BGP, OSPF/IS-IS, MPLS, EVPN/Vx LAN, L3VPN, CLOS, Qo S, load-balancing, MACsec, and IPsec
- 5+ years of practical multi-cloud networking experience deploying and supporting cloud connectivity at a hyperscaler, CSP, or security company
- Extensive experience deploying and maintaining large networks using version control, automation frameworks (Ansible, Terraform, Chef), and scripts and templating (bash, Python, Go, Jinja, YAML, JSON)
- Proven experience using AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency, and drive business outcomes
- Bonus points for CCIE/JNCIE or AWS/GCP/OCI/Azure professional certifications
- Bonus points for hyperscaler/CSP background (AWS, GCP, MSFT, OCI or similar)
- Bonus points for Open Stack, SONi C, whitebox, FRR, or open source network infrastructure experience
- Bonus points for AI/GPU cluster networking fabrics experience, including RDMA, Ro CE, and Infini Band
- Bonus points for UK Government, G-Cloud, or sovereign cloud experience
Responsibilities
- Translate business requirements into practical network design, reference architectures, design patterns, HLDs, design reviews, runbooks, POCs, and 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 and associations, VPCs, VPC peering/Private Link, hub-spoke topologies, gateways, and direct connects
- Develop and maintain infrastructure as code and automation tooling throughout the CI/CD pipeline to provision networks at scale and improve 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 that meet regional compliance and data sovereignty requirements, including ISO 27001, Cyber Essentials Plus, UK G-Cloud, EU data residency/GDPR, and PCI-DSS
- Technologies
- AI
- AWS
- Ansible
- Azure
- Bash
- CI/CD
- Cloud
- GCP
- Infini Band
- JSON
- MPLS
- Network
- Open Stack
- Python
- RDMA
- Security
- Terraform
- Dev Ops
- Support
- More
We are Crowd Strike, a global leader in cybersecurity, protecting the people, processes, and technologies that drive modern organizations.
Our mission is to stop breaches, and we do this through the worlds most advanced AI-native platform while operating at massive scale across large distributed systems processing almost 3 trillion events per day and growing.
We offer flexibility and autonomy, a mission-driven culture focused on responsible AI adoption, experimentation, and innovation, and a collaborative environment built on customer commitment.
We also provide market-leading compensation and equity awards, comprehensive physical and mental wellness programs, competitive vacation and holidays, paid parental and adoption leave, professional development opportunities, employee networks, volunteer opportunities, a vibrant office culture, and global Great Place to Work recognition.
This role is part of our Data Center & Cloud Network Engineering team, based in London, United Kingdom.
- last updated 36 week of 2026
- #J-18808-Ljbffr
Sr. Network Engineer - Data Center and Cloud employer: CrowdStrike
CrowdStrike is an exceptional employer that champions a culture of innovation and flexibility, allowing employees to thrive in a mission-driven environment focused on cybersecurity. With comprehensive wellness programs, competitive benefits, and ample professional development opportunities, employees are empowered to grow their careers while contributing to a meaningful cause. The remote work model, complemented by occasional in-person support at the Reading office, ensures a balanced work-life dynamic, making CrowdStrike a top choice for those seeking impactful employment in the tech industry.
StudySmarter Expert Advice🤫
We think this is how you could land Sr. Network Engineer - Data Center and Cloud
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at CrowdStrike or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to CrowdStrike.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like CrowdStrike.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like CrowdStrike that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Sr. Network Engineer - Data Center and Cloud
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at CrowdStrike.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at CrowdStrike and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at CrowdStrike
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If CrowdStrike uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
