Cloud Platform Architect

Square One Resources; Greater London; Hybrid; GBP 111,000 - 129,000; Full time

Job summary

Square One Resources is seeking a Cloud Platform Architect to lead the design, build and operation of an automated cloud platform across private and public clouds. You will own IaC provisioning, governance, and FinOps, while mentoring two engineers and aligning with SRE and Security teams.

The role focuses on implementing policy-driven guardrails, cost optimization, and scalable infrastructure with strong emphasis on reliability and observability.

Qualifications

• Terraform, CloudFormation or Pulumi for multi-cloud provisioning.
• IaC and CI/CD pipelines.
• Security, network, landing zones, observability.
• DB automation.

Responsibilities

• Architect and implement IaC-based cloud provisioning across multi-cloud and private cloud environments using Terraform, CloudFormation, or Pulumi.
• Design and automate end-to-end infrastructure lifecycle management: provisioning, patching, updates, scaling, and decommissioning.
• Build and maintain cloud governance guardrails using policy-as-code to enforce security, cost, and compliance standards.
• Implement FinOps practices including automated rightsizing and cost allocation tagging.
• Lead CI/CD pipeline engineering for infrastructure deployments with automated testing and security gates.
• Design self-service infrastructure portals enabling teams to provision compliant environments.
• Mentor 2 Cloud Platform Engineers and drive architecture reviews and knowledge sharing.
• Collaborate with SRE and Security to embed reliability and observability into the platform from the ground up.
• Produce ADRs, runbooks, and platform documentation for operations.

Skills

Cloud platforms

IaC

CI/CD

Security

Networking

Landing zones

Observability

Self-service

DB automation

Tools

Terraform

CloudFormation

Pulumi

Job description

Job Title: Cloud Platform Architect
Location: London 3/4x a week
Salary/Rate: £600/700 Daily
Start Date: In the next week
Job Type: Initial 6 month contract Inside IR35

Company Introduction:
We have an exciting opportunity now available with one of our sector-leading consultancy clients! They are currently looking for a cloud Platform Architect to join their team for an initial six-month contract.

You'll be brought in too lead the design, build, and operational excellence of the organisation?s cloud platform across private and public cloud environments. Own the end-to-end IaC-based provisioning, configuration management, patch orchestration, and cloud governance framework. Drive the transformation from manual infrastructure operations to a fully automated, self-service, policy-governed cloud platform that delivers speed, security, cost efficiency, and reliability.

Mandatory Skills:

• Plat Engineering for on-premises &cloud
• IaC
• CI/CD pipeline & tools
• security
• network
• landing zones
• observability
• self-servicing
• DB automation

Key Resposnabilites:

• Architect and implement IaC-based cloud provisioning using Terraform, CloudFormation, or Pulumi across multi-cloud and private cloud environments
• Design and automate end-to-end infrastructure lifecycle management: provisioning, patching, updates, scaling, and decommissioning
• Build and maintain cloud governance guardrails using policy-as-code (OPA, Sentinel, Azure Policy) to enforce security, cost, and compliance standards
• Implement FinOps practices including automated rightsizing, reserved instance management, waste detection, and cost allocation tagging
• Lead CI/CD pipeline engineering for infrastructure deployments, integrating automated testing, security scanning, and approval gates
• Design self-service infrastructure portals enabling development teams to provision compliant environments without manual intervention
• Mentor and coach 2 Cloud Platform Engineers, establish coding standards, conduct architecture reviews, and drive knowledge sharing
• Collaborate with SRE and Security teams to embed reliability, observability, and compliance into the platform from the ground up
• Produce architectural decision records (ADRs), runbooks, and platform documentation for operational excellence

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.