Founding Infrastructure Engineer

Job description

About the role

We’re hiring a Founding Infrastructure Engineer to build and secure the platform foundations for an AI-enabled product used by real customers. This is a hands-on role with significant ownership over reliability, scalability, security, and developer velocity.

You’ll join a small engineering team where speed matters, pragmatism wins, and infrastructure is treated as a core product.

What you’ll do

You will take the lead on the systems that keep the product stable, fast, and safe as usage grows:

• Own cloud infrastructure end-to-end
• Design, operate, and continuously improve a production AWS environment with infrastructure-as-code, focusing on resilience, performance, and cost control.
• Enable multi-region and isolated environments
• Build patterns for deploying fully separated customer environments across multiple regions, including support for single-tenant setups when required.
• Build and evolve CI/CD workflows
• Develop streamlined pipelines that allow the team to ship frequently and safely using modern tooling (e.g., GitHub Actions, containers, progressive deployments).
• Implement observability and reliability standards
• Set up strong monitoring and alerting across logs, metrics, and traces so issues are detected early and resolved quickly.
• Improve performance under demanding workloads
• Tune autoscaling, routing, load balancing, and runtime behaviour to meet latency and throughput expectations , especially under compute-heavy usage.
• Raise the bar on operational maturity
• Establish best practices for incident response, fault tolerance, deployment safety, and infrastructure hygiene.
• Partner with application engineers
• Work closely with product and engineering teammates to ensure the platform supports rapid iteration without sacrificing stability.

What you bring

As a founding infrastructure & security engineer, you’ve solved difficult technical problems and delivered systems that perform reliably in production , demonstrated through past roles, notable projects, or open-source contributions.

Must haves

• 5+ years owning cloud infrastructure in production environments (AWS preferred)
• Strong expertise in Infrastructure as Code (Terraform or equivalent)
• A proven record of building and maintaining CI/CD pipelines
• Deep understanding of cloud networking, autoscaling, and load balancing
• Solid security fundamentals across IAM, network controls, and incident response practices

Preferred haves

• Experience with ECS or container orchestration platforms
• Familiarity with distributed worker / job systems (e.g., Celery, Sidekiq, Resque, SQS, etc.)
• Experience with observability stacks (e.g., Datadog, Prometheus, Grafana, Sentry)
• Strong Python skills

Nice to haves

• Experience supporting AI/ML workloads in production
• Background in offensive security, CTFs, or security research

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full-time jobs

Published at

19-01-2026

Profession type

ICT

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English