Senior) Infrastructure Engineer; OpenStack Neutron Specialist

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’re hiring an Infrastructure Engineer (Open Stack Neutron Specialist) to own and evolve the Open Stack networking layer that underpins Nscale’s internal and customer‑facing cloud services. This role sits within the Infrastructure Engineering team, which is responsible for the design, implementation, operation, and continuous improvement of the infrastructure stack. You’ll work closely with compute, storage, platform engineering, support, architecture, and pre‑sales teams, serving as a deep subject matter expert across Neutron and associated networking technologies including OVN, Open vSwitch, routing, DHCP, metadata services, tenant isolation, and network automation
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• Design scalable, resilient, and secure Open Stack networking platforms with a strong focus on Neutron and OVN/OVS.
• Own the architecture and day‑to‑day operation of virtual networking services, including L2/L3 networking, DHCP, metadata, floating IP, NAT, security groups, and tenant segmentation.
• Ensure Open Stack networking platforms adhere to security, compliance, and operational standards.
• Support upgrades, lifecycle management, and change execution across Open Stack networking services with a strong focus on service continuity.

• Troubleshoot complex control plane and data plane issues across Open Stack networking components and the underlying Linux networking stack.
• Act as a 3rd/4th line escalation point for advanced networking incidents.
• Conduct root cause analysis for critical issues and drive permanent fixes.
• Participate in on‑call rotations and incident response activities for critical infrastructure services.

• Drive continuous improvement in network automation, provisioning, validation, monitoring and recovery using infrastructure‑as‑code and configuration management tools.
• Lead performance tuning, scalability planning, and resilience improvements for network‑heavy and latency‑sensitive cloud workloads.
• Build and improve automation approaches that strengthen operational consistency and recovery across the platform.
• Contribute specialist input to infrastructure roadmap planning, platform standards, and solution design for customer and internal environments.

• Work closely with compute, storage, and platform engineering teams to ensure effective integration across the broader cloud platform.
• Support pre‑sales and solution design activities by providing expert guidance on cloud networking capabilities, constraints and best practices.
• Contribute to upstream Open Stack networking communities, particularly Neutron and related projects such as OVN, through bug reports, code contributions, design discussions, testing and reviews where appropriate.
• Track upstream roadmaps, release changes and community direction to help shape Nscale’s networking strategy, upgrade planning and platform standards.
• Represent Nscale’s operational requirements and real‑world use cases in upstream discussions to help drive improvements for both the business and the broader community.

• Availability of Open Stack networking services
• Resolution of advanced networking incidents and root‑cause fixes
• Network automation, provisioning and recovery improvements
• Scala…