Senior Platform Engineer

The role

You will own the infrastructure, deployment pipeline, and developer tooling for the StackOne platform. You will manage the AWS estate, migrate from CDK to Terraform, and build solutions for shipping software into customers' own clouds.

What you will do

• Own the AWS estate and the AWS CDK to Terraform migration
• Build the deployment pipeline and automated end-to-end testing harness
• Ship software into customers' own clouds via Terraform modules and container images
• Own the release and upgrade path for self-hosted customers
• Set the standard for new repositories with secure templates and golden paths
• Raise reliability through SLOs, observability, and incident response
• Treat infrastructure as a product with self-serve tooling
• Use AI in the workflow for IaC generation and test scaffolding

Required qualifications

• 4+ years in platform, infrastructure, SRE, or DevOps
• Hands-on AWS at scale: ECS/Fargate, RDS/Aurora, Lambda, networking, IAM, KMS
• Deep IaC ability in Terraform and hands-on AWS CDK or CloudFormation
• Strong CI/CD and monorepo build experience
• Strong coding in TypeScript, Python, or Go
• Containers and Kubernetes in production: Docker and Kubernetes
• Security-minded approach to pipelines and repo templates
• Clear writing for docs and runbooks
• End-to-end ownership of scoping, shipping, and measuring

Nice to have

• Shipping software into customers' own cloud or on-prem (BYOC / self-hosted)
• Experience with platforms like Nuon, Replicated, or Omnistrate
• Multi-cloud (GCP or Azure) IaC
• Exposure to Temporal, Kafka/MSK, ClickHouse, or OpenSearch

Benefits

• Meaningful share options (EMI)
• Flexible hours and hybrid working
• 25 days holiday per year plus 1 additional day per year of tenure
• Private health insurance including dental and optical
• Up to 30 days per year working from abroad
• Optional co-working space paid for from remote setup allowance
• £15/day lunch budget when working in London office, up to £180/month
• £1,000 for home office setup plus £500/year top-up
• Health, fitness and gift card discounts
• Cycle2Work and Electric Cars scheme
• Annual team offsites

About the company

StackOne is the integration infrastructure for AI agents. It provides agents with connectors, actions, and a production layer including semantic tool discovery and managed authentication.