Security Engineer - Network Security

Join to apply for the Security Engineer - Network Security role at CoreWeaveJoin to apply for the Security Engineer - Network Security role at CoreWeaveGet AI-powered advice on this job and more exclusive features.CoreWeave is the AI Hyperscaler, delivering a cloud platform of cutting edge services powering the next wave of AI. Our technology provides enterprises and leading AI labs with the most performant, efficient and resilient solutions for accelerated computing. Since 2017, CoreWeave has operated a growing footprint of data centers covering every region of the US and across Europe. CoreWeave was ranked as one of the TIME100 most influential companies of 2024.As the leader in the industry, we thrive in an environment where adaptability and resilience are key. Our culture offers career-defining opportunities for those who excel amid change and challenge. If you’re someone who thrives in a dynamic environment, enjoys solving complex problems, and is eager to make a significant impact, CoreWeave is the place for you. Join us, and be part of a team solving some of the most exciting challenges in the industry.CoreWeave powers the creation and delivery of the intelligence that drives innovation.Role OverviewCoreWeave is seeking an experienced Senior Network Security Engineer to lead our edge security initiatives and protect our rapidly scaling cloud infrastructure. In this role, you will architect and implement cutting-edge security solutions focused on edge security at our network perimeter. You will work in a high-scale environment (CoreWeave is positioning itself as the next major hyperscaler) and ensure our network and services remain secure, resilient, and trustworthy. The ideal candidate is a seasoned security expert (5–10 years experience) with a deep understanding of modern cloud/network architectures and a passion for mentoring others in a security-first culture.Key ResponsibilitiesEdge Security Architecture: Design and deploy robust security measures at the network edge (e.g., perimeter firewalls, proxies, WAFs, CDN security) to protect CoreWeave’s globally distributed infrastructure. Ensure that all entry points and services are fortified against unauthorized access and attacks.DDoS Mitigation: Develop and implement advanced DDoS mitigation strategies to safeguard our platforms and ensure high availability. Continuously monitor traffic patterns, tune defenses (e.g., anti-DDoS services, rate-limiting, traffic filtering), and respond swiftly to volumetric attacks or anomalous traffic.Zero Trust Implementation: Champion a Zero Trust security model across CoreWeave’s network and cloud environment. Architect solutions that enforce least-privilege access, continuous verification, and micro-segmentation of services – ensuring no implicit trust at any layer.Security Monitoring & Incident Response: Establish robust monitoring for network security events and potential breaches. Proactively identify vulnerabilities or indicators of compromise, and coordinate incident response efforts for any network or edge-related security incidents to minimize impact.Cross-Functional Collaboration: Work closely with Networking, Infrastructure, SRE/DevOps, and Software Engineering teams to integrate security best practices into architecture, deployments, and processes. Provide expert guidance during design and code reviews to ensure new services and features are secure by design.Leadership & Mentorship: Drive security initiatives and foster a security-first mindset across the organization. Mentor junior engineers and peer teams on network security principles, conduct security training sessions, and lead by example in following and enforcing security policies and standards.Policy Development: Develop, implement, and continually refine security policies and standard operating procedures for a highly scalable, distributed environment. Regularly review network and cloud security postures, ensuring compliance with industry best practices and adapting policies as the company grows.Required QualificationsExperience: 5–10 years of hands-on experience in network security engineering, with exposure to large-scale cloud or hyperscaler environments. Proven track record protecting complex, distributed systems at scale.Edge Security Expertise: Deep understanding of edge security principles and technologies – including experience mitigating DDoS attacks, defending against web exploits, and implementing zero trust methodologies.Cloud & Network Architecture: Strong conceptual and practical knowledge of securing modern cloud and network architectures. Proficient in network protocols (TCP/IP, DNS, BGP, etc.), network segmentation, VPNs, and firewall configurations. Experience securing cloud platforms (AWS, GCP, Azure or custom hyperscale infrastructure) and containerized environments.Security Leadership: Demonstrated ability to lead security initiatives and projects end-to-end. Experience mentoring engineers or leading security teams, with a talent for instilling a security-first mindset across diverse teams.Cross-Team Collaboration: Excellent communication and collaboration skills. Ability to work closely with cross-functional teams (Networking, Infrastructure, DevOps/SRE, Software) to design and implement security solutions that enable the business while protecting critical assets.Policy and Compliance: Experience in designing, implementing, and reviewing security policies and controls for highly scalable, distributed systems. Familiarity with industry standards and compliance frameworks (e.g., NIST, ISO 27001, SOC2) and how they apply in a cloud environment.Preferred Skills & QualificationsHyperscaler Environment: Prior experience working in a top-tier cloud provider or hyperscale environment is a strong plus (FAANG or similar organization). Understanding of the unique security challenges at massive scale.DDoS and WAF Technologies: Familiarity with enterprise-grade DDoS protection and web application security solutions (e.g., Cloudflare, AWS Shield, Akamai, Arbor Networks, F5, etc.). Experience fine-tuning WAF rules and traffic scrubbing techniques.Zero Trust & Identity: Experience designing zero trust networks, including identity and access management (IAM) systems, single sign-on, multi-factor authentication, and network access control solutions.Automation & Scripting: Proficiency in scripting or programming (Python, Go, or similar) for automating security tasks, integrating security tools, and handling infrastructure-as-code. Experience with DevSecOps practices and CI/CD pipeline security is a plus.Security Certifications: Relevant certifications such as CISSP, CCSP, GIAC (GSEC, GCIH, etc.), or cloud security certifications (AWS/Azure Security Specialty) are advantageous, demonstrating a strong foundation in security best practices.Continuous Learning: Active involvement in the security community or contributions to open-source security projects. Up-to-date knowledge of the latest threats, vulnerabilities, and mitigation strategies in network and cloud security.The base salary range for this role is $139,000 to $275,000. The starting salary will be determined based on job-related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).What We OfferThe range we’ve posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and addition to a competitive salary, we offer a variety of benefits to support your needs, including:Medical, dental, and vision insurance - 100% paid for by CoreWeaveCompany-paid Life InsuranceVoluntary supplemental life insuranceShort and long-term disability insuranceFlexible Spending AccountHealth Savings AccountTuition ReimbursementAbility to Participate in Employee Stock Purchase Program (ESPP)Mental Wellness Benefits through Spring HealthFamily-Forming support provided by CarrotPaid Parental LeaveFlexible, full-service childcare support with Kinside401(k) with a generous employer matchFlexible PTOCatered lunch each day in our office and data center locationsA casual work environmentA work culture focused on innovative disruptionOur WorkplaceWhile we prioritize a hybrid work environment, remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaborationCalifornia Consumer Privacy Act - California applicants onlyCoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact: Control ComplianceThis position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C.1157, or (iv) asylee under 8 U.S.C.1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.Seniority levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionJob functionInformation TechnologyIndustriesTechnology, Information and InternetReferrals increase your chances of interviewing at CoreWeave by 2xSign in to set job alerts for “Security Engineer” roles.Walnut Creek, CA $150,000.00-$165,000.00 2 months agoSan Francisco, CA $105,000.00-$145,000.00 2 weeks agoSan Francisco, CA $200,000.00-$340,000.00 6 days agoOakland, CA $110,000.00-$125,000.00 1 week agoOakland, CA $105,000.00-$145,000.00 2 weeks agoSan Rafael, CA $105,000.00-$145,000.00 1 week agoWalnut Creek, CA $105,000.00-$145,000.00 21 hours agoSan Francisco, CA $180,000.00-$440,000.00 2 weeks agoSenior Security Engineer, Application SecurityCybersecurity Engineer with Penetration Experience- NO C2CSan Francisco, CA $135,000.00-$170,000.00 4 weeks agoOakland, CA $134,993.00-$204,516.00 2 days agoCyber Defense Operations Engineer - Department of Technology (1042)San Francisco, CA $138,684.00-$174,434.00 2 days agoSan Francisco, CA $120,000.00-$150,000.00 2 months agoCyber Defense Operations Engineer - Department of Technology (1042)San Francisco, CA $138,684.00-$174,434.00 5 days agoAlameda County, CA $150,000.00-$210,000.00 2 weeks agoInformation Security Compliance Analyst - Hybrid Infrastructure : 25-05771San Francisco, CA $60.00-$65.00 6 days agoSenior Cybersecurity Engineer - Information SecurityAlameda, CA $150,000.00-$215,000.00 6 days agoSan Francisco, CA $170,000.00-$195,000.00 6 months agoAlameda, CA $98,000.00-$196,000.00 1 week agoAssociate Cybersecurity Engineer - Network Security MonitoringFoster City, CA $105,800.00-$149,550.00 2 weeks agoAssociate Cybersecurity Engineer - Network Security MonitoringFoster City, CA $105,800.00-$149,550.00 2 weeks agoSenior Cybersecurity Engineer (Hybrid or Remote)Redwood City, CA $170,000.00-$200,000.00 2 weeks agoSan Francisco, CA $120,000.00-$200,000.00 4 months agoMember of Technical Staff, Security/DevSecOpsWe’re unlocking community knowledge in a new way. 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Created: 2025-09-17