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Arcus Search

Platform Engineer

Hybrid

London, United kingdom

Freelance

18-01-2026

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Skills

Research AWS Terraform

Job Specifications

AWS Platform Engineer - London - Contract

A research-driven technology firm operating one of the most advanced compute platforms in Europe is strengthening its cloud platform team. The group owns the design, security, and evolution of a large-scale AWS environment that underpins critical internal engineering workloads.

This is a senior, hands-on platform role for engineers who have built and operated cloud foundations, not just consumed them.

Key responsibilities:

Own and evolve the organisation’s AWS landing zone and multi-account platform
Design and implement preventative security and governance controls across accounts
Define and manage identity, access, and organisational guardrails using AWS Organizations and IAM
Build and maintain infrastructure using Terraform and CloudFormation
Improve platform reliability, security, and operational standards
Enable internal teams to safely and efficiently consume the platform

What you’ll need:

Experience designing or owning an AWS landing zone or equivalent multi-account platform
Strong knowledge of AWS Organizations, SCPs, RCPs, delegated administration, and account governance
Practical experience with preventative security controls and data perimeter concepts
Strong IAM experience including cross-account access and condition-based policies
Advanced Terraform experience in shared, multi-account environments

You will shape the foundation that every engineering team builds on. The problems are complex, the impact is broad, and the expectations are high

About the Company

Our Team at Arcus Search recruit Technical talent, but our ethos is always human connection. With a promise to champion opportunities for all. By leading with an honest and practical approach, we strive to ultimately enhance the lives of our candidates, clients and employees. Our talented Consultants are focused within specialism areas covering: * Project Services * Software Development * Core Technology * Data & BI * Design & Digital * Cyber Security We provide our services that cover contract, FTC, permanent, executi... Know more