Security Engineer II, Cloud & Platform Security

About Nscale Nscale is the GPU cloud engineered for AI. We provide cost-effective, high-performance infrastructure for AI start-ups and large enterprise customers. Nscale enables AI-focused companies to achieve superior results by reducing the complexity of AI development. Our GPU cloud bolsters technical capabilities and directly supports strategic business outcomes, including cost management, rapid innovation, and environmental responsibility. We thrive on a culture of relentless innovation, ownership, and accountability, where every team member takes pride in their work and drives it with excellence and urgency. As an Nscaler, you’ll build trust through openness and transparency, where everyone is inspired to do their best work. If you join our team, you’ll be contributing to building the technology that powers the future. About the Role Help protect Nscale's cloud platforms, hyperscale GPU clusters, and production environments. As a Security Engineer II in our Cloud & Platform Security team, part of the CISO organization, you'll investigate real findings and incidents, separate meaningful risk from noise, and work with engineering to resolve the causes. This is a hands-on cloud-security, detection, and response role. You'll review cloud posture, triage production threats, improve the telemetry needed to investigate them, and turn incident findings into lasting improvements in controls and coverage. What you'll be doing Cloud posture and findings review • Review findings from cloud security posture management (CSPM) and cloud-security tooling across our cloud platforms and GPU infrastructure. • Validate findings against live environments, assess technical and business impact, and assign severity so teams address the right risks first. • Partner with platform, infrastructure, and engineering teams to drive remediation and track findings to closure. • Identify recurring misconfigurations and exposure patterns, address their systemic causes, and establish guardrails that make systems secure by design. Production threat triage • Triage security alerts and threats in production, determining what's real, how urgent it is, and its potential blast radius. • Own classification, enrichment, and escalation into incident response when warranted, involving system owners to understand the architecture and impact. • Keep clear records of what you observed, what you decided, and why. • Feed lessons back into detections and runbooks so future alerts are easier to assess and act on. Log and telemetry coverage • Assess log and telemetry coverage across cloud, Kubernetes, hosts, and production services. • Identify missing sources, fields, or retention, and work with platform and engineering teams to close coverage gaps. • Help ensure security-relevant telemetry reaches logging and SIEM pipelines reliably and supports detection and investigation. • Contribute to detections and alerting, prioritising signal quality over volume. Forensics and investigation • Reconstruct incidents, establish scope and impact, and determine whether findings are exploited, exploitable, or false alarms. • Perform host, container, and cloud forensics, using timelines, artefacts, and evidence to support incident response and root-cause analysis. • Contribute to blameless post-incident reviews and translate lessons into stronger controls, better coverage, and improved processes. • Maintain detailed investigation and resolution records for audit and compliance purposes. KPIs • Time to validate, prioritise, and resolve cloud posture findings and production alerts • Reduction in recurring misconfiguration and exposure types • Log and telemetry coverage across critical cloud, platform, and production systems • Quality and timeliness of investigations and post-incident improvements About You • 2–5 years of security experience, with hands-on work in security operations, cloud security, detection and response, or incident response and forensics. • Practical experience triaging findings and alerts, with the judgement to distinguish real risk from noise. • Working knowledge of cloud security and posture management in AWS, GCP, or Azure, including common infrastructure misconfigurations and exposures. • Familiarity with logging, SIEM, and detection tooling, and the telemetry needed to detect and investigate threats. • Exposure to incident response and digital forensics, including timelines, evidence handling, and root-cause analysis, with an eagerness to deepen that expertise. • Comfort working with and investigating Kubernetes, containers, Linux, and APIs. • Clear written communication: findings, severity assessments, and actionable next steps for engineers and leadership. • A collaborative approach and ownership of findings through resolution, working with engineering to fix root causes. Nice to have • Experience with GPU/HPC or large-scale multi-tenant cloud infrastructure. • Python, Go, or Bash scripting and automation to reduce repetitive work and scale investigations. • Exposure to CSPM tooling, cloud-native detection, container/Kubernetes security, and identity and access management. • Relevant certifications, such as GCIH, GCFA, GCIA, or cloud security certifications. These are welcome but not required. What we can offer you At Nscale, you'll find a collaborative, supportive, and innovative environment where your contributions spark real impact. We're building something extraordinary, and we want you at the core. • Highly competitive US compensation package (base + bonus + equity), with performance reviews every 12 months. 🚀 • Join one of the fastest-growing AI infrastructure companies — your chance to directly shape how global AI capacity is planned and deployed. ✨ • Expect a dynamic progression plan tailored to your ambitions. Grow by owning critical security work and developing deep detection, response, and forensics expertise — always with our full support. • Human-First Flexibility: We treat you as humans first. 🫶🏽 Our flexible workplace trusts Nscalers to deliver, giving you the autonomy to shape your day around life's moments. Equal Opportunities Statement We strongly encourage applications from people of color, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, and people from lower socio-economic backgrounds. If there’s anything we can do to accommodate your specific situation, please let us know. The responsibilities outlined in this job description are not exhaustive and are intended to provide a general overview of the position. The employee may be required to perform additional duties, tasks, and responsibilities as assigned by management, consistent with the skills and qualifications required for the role. For information on how Nscale handles candidate personal data, please see our Employee & Candidate Privacy Notice: Here. The range below reflects the base salary for the position. Actual compensation may vary based on job-related factors such as skill set, experience, education, and location. In addition to base salary, this role may be eligible for bonus, equity, and/or commission programs. Nscale may offer a competitive benefits package including medical, dental, vision, flexible paid time off, parental leave, and retirement plan participation. Salary Range $130,000—$160,000 USD For information on how Nscale handles candidate personal data, please see our Employee & Candidate Privacy Notice: Here. Nscale does not accept unsolicited candidate submissions from recruitment agencies.