Infrastructure Engineer (Platform) - London
Description du poste
You'll be joining the team responsible for the infrastructure behind all of H's products: clusters, networking and security. It's the foundation that lets the rest of the company deliver value directly to customers.
What you'll own
From your first quarter, you'll own a real piece of our move from AWS to an environment-agnostic platform. The team moves fast and the problems are novel: each model release and each new customer changes what the infrastructure has to support.
What you'll be doing
- Running and scaling Kubernetes clusters and networking
- Building authentication and authorization systems
- Refactoring the stack to be environment agnostic
- Speeding up deployment for our Forward Deployed Engineers (FDEs)
- Building Kubernetes-native services, such as controllers and operators
- Writing and maintaining infrastructure as code
Your team and your users
The role sits in the Infrastructure team, with our VP of Engineering as hiring manager. Your users are H's product and platform engineers and, through our FDEs, our external customers.
What we think it takes
You're likely a good fit if you:
- Write Python or Go well enough to solve real problems with it
- Have built and operated a Kubernetes-based platform at significant scale and can put numbers on its clusters, services and users
- Have worked with more than one cloud provider (AWS, Azure, GCP), or have strong knowledge of fundamental systems engineering (Linux, eBPF)
- Have built and owned infrastructure as code, CI/CD and observability
Stronger still if you have:
- Worked with complex network topologies (multi-cluster, dual-stack) and CNIs such as Cilium or Calico
- Handled petabyte-scale data, or high-frequency, latency-sensitive workloads
- Worked with agentic systems, particularly in security
- Worked with GPUs and tools such as Dynamo, vLLM or SGLang
How we hire
Five stages, about 3.5 hours in all: a 30-minute call with our Talent team, a 30-minute conversation with the lead of the Infrastructure team, a 60-minute coding interview, a 60-minute system design interview and a closing 30-minute conversation with our VP of Engineering.
Practicalities
The role is hybrid, with three days a week in our Paris or London office. We offer a competitive package.
Compétences mentionnées
We are a frontier AI research company that designs, builds, and deploys cost-efficient agentic AI systems in enterprises. We've created the H Platform - a complete integrated stack providing infrastructure, orchestration engine, and applications to run end-to-end agentic workflows. Our technology combines leading-edge research in computer-use agents with proprietary AI models, and we back it up with Forward Deployed Engineers who work directly with clients to ensure seamless integration into their existing workflows. What sets us apart is that we don't just do research - we actually implement. Our team includes specialists who have scaled products used by governments and the world's largest enterprises. We've developed Surfer2, a general-purpose agent framework for cross-platform computer-use, and Holo2, our cost-efficient cross-platform model family that's open-source and available via API. We're building AI systems that can be trusted in the real world, with tangible ROI for our clients.
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