StackOne

Technology

SeniorPlatformEngineer

£95–140k ~AI est. London, United Kingdom; United Kingdom FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Platform Engineer at StackOne. Skills: Platform engineering, Infrastructure as Code, CI/CD, AWS. Own infrastructure at scale. Keep infrastructure reliable”

Industry & Context.

Technology
Problems you'll solve

Troubleshooting; Root cause analysis

What They're Looking For.

Must Have

4+ years platform/infrastructure/SRE/DevOps, Hands-on AWS at scale, Coding in TypeScript, Python, or Go, Containers in production (Docker), Security-minded, Clear writer

Nice to Have

Kubernetes a plus, Shipping software into customers' own cloud, Multi-cloud (GCP or Azure) IaC, Exposure to Temporal, Exposure to Kafka/MSK, Exposure to ClickHouse, Exposure to OpenSearch

What You'll Do.

Own infrastructure at scale

Keep infrastructure reliable

Keep infrastructure observable

Keep infrastructure cost-aware

Build out deployment pipeline

Automate end-to-end testing

Ship into customers' clouds

Set standard for new repositories

Ship deployable projects

Make system easy to operate

Treat infrastructure as product

Provide self-serve tooling

How You'll Work.

Team & Collaboration

Work with Security Engineer; Work with tech leads; Partner with Security Engineer; Partner with tech leads; Product engineers ship

Communication Scope

Write docs; Write runbooks

Full Job Description

About StackOne: StackOne is the AI Integration Gateway for SaaS products and AI Agents. Backed by GV and Workday Ventures ($24M raised), we help builders of SaaS platforms and AI Agents orchestrate hundreds of scalable, accurate, and enterprise-grade integrations. Our platform combines 25,000 pre-mapped actions on 200 connectors, an AI-powered integration development toolkit, plus security by design: a real-time architecture, managed authentication and permissions, and end-to-end observability. Join us on our fast trajectory to build the future of agentic integrations. ABOUT THE ROLE We're looking for a Senior Platform Engineer to own how StackOne is built, shipped, and run, as we scale across our own cloud and into our customers' clouds. You'll own the infrastructure behind the platform, our deployment pipeline and developer tooling, and how we package StackOne to run inside customers' own AWS, GCP, or Azure accounts. It's a hands-on role with broad scope. You write code and tooling, you own the IaC other engineers depend on, and you set the standard for how every new repository gets deployed and secured. You'll report directly to the CTO and work closely with our Security Engineer and tech leads. RESPONSIBILITIES - Own our infrastructure at scale: the AWS estate today (ECS Fargate, Aurora, ElastiCache, MSK, OpenSearch, Lambda, KMS) and the AWS CDK to Terraform migration. Keep it reliable, observable, and cost-aware. - Build out the deployment pipeline as we consolidate toward a monorepo: the CI/CD that ships every service, plus an automated end-to-end testing harness with incremental (affected-only) testing that stays fast as we grow. - Ship into customers' own clouds (self-hosted / BYOC): the Terraform modules, container images, runbooks, and documentation for internal teams and customers. - Own the release and upgrade path for self-hosted customers: versioned, signed releases, a supported-version policy, and a call-home for usage and version reporting. - Set the

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