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.

At Nscale, our Engineering team plays a critical role in driving the deployment and then subsequent management of our infrastructure and software platforms..

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 The Senior Network Engineer plays a key role in the design, deployment, and operation of Nscale’s high-performance networking platforms that underpin both internal systems and the customer-facing GPU cloud. This role sits between mid-level and principal engineers, combining strong hands-on technical delivery with growing architectural ownership and influence.

You will contribute to network architecture decisions, lead complex implementations, and act as a senior escalation point (3rd/4th line) for operational issues, while working closely with Principal Engineers to evolve standards, automation, and long-term strategy.

What You'll Be Doing

• Design, deploy, and operate high-performance Ethernet fabrics (leaf-spine / multi-tier) in production environments.
• Design, deploy, and operate InfiniBand networks for accelerated compute, ensuring performance, resilience, and scalability.

About You

• Strong, hands-on experience designing, deploying, and operating high-speed Ethernet networks, including VLANs, LACP, MLAG, BGP, OSPF, EVPN, and VXLAN in production.
• Proven experience operating InfiniBand networks for HPC or AI workloads, including configuration, performance tuning, and troubleshooting (e.g. Subnet Managers, QoS, RDMA).
• Solid understanding of WAN technologies and routing design, including MPLS, BGP, IPSec, GRE, and SD-WAN.
• Good knowledge of HPC/AI networking topologies such as Fat-Tree and Rail, and their impact on performance and failure domains.
• Strong automation skills using Python and/or Bash, with experience applying software engineering principles to infrastructure.

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 At Nscale, we are committed to fostering an inclusive, diverse, and equitable workplace. We believe that a variety of perspectives enriches our work environment, and we encourage applications from candidates of all backgrounds, experiences, and abilities. 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.

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