Platform Engineer

Company: Harnham
Apply for the Platform Engineer
Location: London
Job Description:

Platform Engineer – Windows or Linux (Contract, Outside IR35)

London, United Kingdom | Salary: £70,000 – £100,000 per year | Contract

Overview

This is a chance to join a small, high‑impact Cloud Infrastructure team inside a fast‑growing, tech‑first financial services organisation. Your work will run, scale and improve the cloud platforms powering real, customer‑facing products used by hundreds of thousands of people daily.

Responsibilities

  • AWS‑based environments supporting mission‑critical, customer‑facing applications
  • Infrastructure as Code with Terraform
  • Highly available, scalable platforms used for current accounts and investment products
  • Secrets and access management (Vault exposure a bonus)

Required Skills

  • AWS (EC2, VPC, IAM, Load Balancers, Lambda, API Gateways). Open to GCP/Azure with extensive Kubernetes experience.
  • Terraform – hands‑on, not just running modules.
  • Strong Kubernetes exposure in production environments.
  • Confidence owning infrastructure and driving improvements.
  • Financial services experience is a plus.

Nice to Have

  • HashiCorp Vault

Benefits

  • Work abroad up to 120 days per year
  • Learn‑centric, cloud‑native environment – no legacy systems
  • Small team – real influence and ownership
  • Strong focus on learning, wellbeing and flexibility
  • Fast, simple two‑stage interview process (fully remote)
  • Behavioural interview (45 min – Zoom)
  • Technical + values interview (80 min – Zoom)

Seniority Level

Mid‑Senior level

Employment Type

Full‑time (Contract)

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Posted: April 11th, 2026