Senior Platform Engineer: AI Infra, CI/CD & Observability

Dex; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Dex partners with leading enterprises to empower AI infrastructure. This role sits at a partner company building scalable cloud platforms with stringent security, audit trails, and governance.

You will own end-to-end platform operations in Azure, driving reliability, performance and cost efficiency. You’ll design Terraform modules and CI/CD pipelines, own observability end-to-end, manage incidents, and prepare the cloud estate for SOC 2 and ISO 27001 audits while guiding technical direction for

Qualifications

• 7+ years in platform, infrastructure, or DevOps, including a period where you set technical direction.
• Experience designing Terraform modules and CI/CD pipelines that other engineers build on.
• End-to-end ownership of observability, including incident practice.
• Comfort with cloud networking (VPCs, private networking, DNS, load balancers, VPNs, firewalls) and provisioning production databases.
• Strong Python or Bash for automation.

Responsibilities

• Architecting and operating a complex Azure footprint, including AKS, Terraform, and Dockerised services.
• Designing and implementing CI/CD pipelines (GitHub Actions equivalent) that ship backend, frontend, and data, with a focus on developer experience.
• Setting technical direction and guardrails for infrastructure, including Terraform modules, pipeline patterns, and observability practices.
• Owning end‑to‑end observability (logging, metrics, tracing, alerting, on‑call) and driving incident response.
• Preparing the entire cloud estate for rigorous SOC 2 and ISO 27001 audits, and managing cloud cost at scale.

Skills

DevOps leadership

Terraform modules

CI/CD pipelines

Observability ownership

Cloud networking

Python or Bash

Tools

Terraform

GitHub Actions

Docker

AKS

Job description

Dex partners with leading enterprises to empower AI infrastructure. This role sits at a partner company building scalable cloud platforms with stringent security, audit trails, and governance.

You will own end-to-end platform operations in Azure, driving reliability, performance and cost efficiency. You’ll design Terraform modules and CI/CD pipelines, own observability end-to-end, manage incidents, and prepare the cloud estate for SOC 2 and ISO 27001 audits while guiding technical direction for