Principal Engineer, Platform & Infrastructure Security

• Lead security architecture and engineering initiatives across compute, networking, storage, and control plane systems.


• Identify architectural and systemic risks in distributed, multi-tenant infrastructure.


• Design and implement scalable security controls through code and automation.


• Harden Kubernetes, virtualization layers, GPU workloads, and platform services.


• Strengthen identity, authentication, authorization, and secrets management systems.


• Partner with Networking teams on secure segmentation and traffic isolation strategies.


• Embed automated security validation and guardrails into CI/CD pipelines.


• Conduct deep technical design reviews and threat modeling exercises.


• Mentor and develop junior security engineers, raising the technical bar across the team.


• Partner with the CISO to shape long-term platform security strategy.


• Represent Nscale externally as a subject matter expert in infrastructure and cloud security

About You 

• 10+ years of hands-on security engineering experience in cloud, hyperscale infrastructure, or large distributed systems.


• Strong software engineering background with proficiency in Go, Python, Rust, or similar languages.


• Deep expertise in:
  
  
  
  • Linux systems internals
  
  
  • Kubernetes and container security
  
  
  • Infrastructure-as-Code (Terraform or equivalent)
  
  
  • Cloud-native architectures
  
  
  • Network security and segmentation
  
  
  • Identity and access management system
  
  
  
  


• Proven experience securing multi-tenant environments at scale.


• Demonstrated ability to identify architectural risk and drive engineering-led remediation.


• Experience mentoring engineers and contributing to hiring and team building.

Nice to Have

• Experience in GPU, HPC, or AI infrastructure environments.


• Background in adversarial security research or red teaming.


• Public speaking, industry contributions, or open-source security work.


• Experience at a hyper-scale cloud provider or high-growth infrastructure company.

Who You Are

• A builder who writes code and ships secure systems.


• A systems thinker who understands how complex infrastructure can be abused.


• Comfortable challenging technical decisions where risk exists.


• Influential without relying on authority.


• Recognized as an industry SME in platform and infrastructure security.

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 package (base + equity) with reviews every 12 months. 🚀
● Join the fastest-growing tech startup, your chance to push boundaries, collaborate with brilliant minds, and make your mark on cutting-edge AI. ✨
● Expect a dynamic progression plan tailored to your ambitions. Grow by trying new things, leading, challenging the status quo, and owning your impact, 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.
● Join our thriving remote-first team. Geography is no barrier to impact or connection. We build seamless virtual collaboration, empowering you, wherever you work.

Equal Opportunities Statement

We strongly encourage applications from people of colour, 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.