At a Glance
- Tasks: Design and implement cutting-edge cloud and data centre network solutions.
- Company: Join CrowdStrike, a global leader in cybersecurity with a mission-driven culture.
- Benefits: Competitive pay, wellness programmes, generous leave, and professional growth opportunities.
- Other info: Dynamic work environment with a focus on innovation and collaboration.
- Why this job: Be part of a team that uses AI to redefine cybersecurity and make a real impact.
- Qualifications: 7+ years in network design and hands-on experience with multi-cloud environments.
The predicted salary is between 63000 - 77000 £ per year.
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.
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
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.
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.
Location: United Kingdom - London
Type: Full time
Sr. Network Engineer - Data Center and Cloud (Hybrid, London) 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 (Hybrid, London)
✨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 (Hybrid, London)
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.
