Principal Software Engineer - Fleet Management

Nscale Ltd.
Charing Cross, United Kingdom
2 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Junior

Job location

Charing Cross, United Kingdom

Tech stack

API
Artificial Intelligence
Airflow
Amazon Web Services (AWS)
Intelligent Platform Management Interface
Cursor (Graphical User Interface Elements)
Distributed Systems
InfiniBand
Python
Network Configuration and Change Management
Open Source Technology
OpenStack
Software Engineering
Software Systems
Network Switches
Pulumi
Graphics Processing Unit (GPU)
Build Management
Kubernetes
Bare Metal
Terraform

Job description

We're hiring a Principal Software Engineer to lead the technical development of our Fleet Manager platform - the workflow automation system that provisions, tests, and remediates GPU nodes and network switches at scale.

As technical lead, you'll own the architecture and delivery of foundational Python-based automation systems that manage the entire lifecycle of our compute infrastructure: device enrolment, burn-in testing, network configuration, GPU health monitoring, and self-healing capabilities. You'll mentor a team of senior engineers, set technical direction, and drive engineering excellence while remaining hands-on with critical systems.

What you'll do

  • Lead technical architecture and roadmap for Fleet Manager's workflow automation systems
  • Own end-to-end delivery of device provisioning, validation, testing, and remediation workflows at scale
  • Design and build workflow orchestration systems for GPU node and network switch lifecycle management
  • Establish engineering standards for reliability, observability, and operational excellence across all Fleet Manager services
  • Mentor and raise the bar for a team of senior engineers through design reviews, technical leadership, and hands-on collaboration
  • Drive architecture decisions balancing automation complexity, reliability, and maintainability
  • Integrate with infrastructure tooling: DCIMs, NetBox, OpenStack, bare metal APIs (MAAS, Ironic, IPMI)
  • Partner with Infrastructure, Platform, and SRE teams to translate operational needs into robust, scalable automation
  • Build production-grade Python systems for hardware lifecycle automation, leveraging AI tools to accelerate delivery

Requirements

Do you have experience in Terraform?, * You have 10+ years software engineering experience building and operating production systems, with proven technical leadership in infrastructure automation or workflow tooling

  • Strong Python engineering fundamentals with experience leading complex, multi-service distributed systems
  • You are driven by building distributed systems at scale, infrastructure reliability, scalability, security, and continuous improvement
  • Technical expertise: quickly understanding systems design tradeoffs, keeping track of rapidly evolving software systems
  • Track record of owning technical roadmaps and delivering large-scale automation systems from ambiguous requirements to production
  • You use AI tools like Claude or Cursor as a core part of your development workflow - as a fundamental multiplier of what you can build
  • Deep understanding of operational excellence: SLOs, monitoring, alerting, incident response, and production reliability
  • Strong mentorship skills with ability to develop high-performing engineering teams
  • Excellent communication skills to build consensus with stakeholders, both internally and externally

Nice to have

  • Experience with workflow orchestration tools like Temporal, Airflow, Prefect, or similar
  • Hands-on experience with infrastructure tooling: DCIMs, NetBox, OpenStack, or ERP systems
  • Bare metal provisioning and automation: MAAS, Ironic, IPMI, PXE boot, or network automation
  • Experience building hardware lifecycle automation: provisioning, validation, testing, or remediation workflows
  • GPU infrastructure experience: health monitoring, burn-in testing, or cluster management
  • HPC and networking: datacenter topology, high-performance interconnects (InfiniBand, RoCE)
  • Deep knowledge of Kubernetes, Infrastructure as Code (Terraform, Pulumi), AWS, and GCP
  • Track record of 1+ years leading large-scale, complex projects or technical teams
  • Open-source contributions in infrastructure automation or cloud-native tooling

Benefits & conditions

  • 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.

About the company

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 Software engineers form the backbone of our product offering. We build state of the art AI products allowing our clients to move quickly in an increasingly competitive digital landscape. 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, 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.

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