Platform Engineer

Harrington Starr; Greater London; On-site; GBP 101,000 - 166,000; Part time

Job summary

Harrington Starr is seeking a high-impact Platform Engineer for an 8-week contract based in London (Bank Station). The role focuses on building a scalable, cloud-native infrastructure with automation, standardised governance and strong observability across Kubernetes estates.

You will own foundational platform workstreams including Terraform modules, GitLab CI/CD pipelines, DNS and tagging governance, RBAC patterns, Gateway API migration, and comprehensive architecture diagrams to set the future

Qualifications

• Strong experience building and operating Kubernetes platforms in cloud environments.
• Deep Terraform expertise, including reusable modules and infrastructure governance patterns.
• Experience delivering Infrastructure as Code programmes from design through deployment.

Responsibilities

• Designing and delivering Terraform modules that manage Kubernetes clusters and associated cloud resources.
• Automating infrastructure provisioning through GitLab CI/CD pipelines and Infrastructure as Code practices.
• Establishing Terraform-managed DNS and standardised resource tagging frameworks across environments.
• Building reusable RBAC modules and defining access governance through codified permissions models.
• Leading the migration from legacy Ingress NGINX implementations to Gateway API architecture.
• Restructuring application routing and ingress management to improve maintainability and operational control.
• Embedding observability tooling and platform monitoring capabilities into cluster deployments.
• Producing clear architecture diagrams and technical documentation that become the future operational standard.
• Partnering with engineering leadership to establish scalable platform patterns across multiple environments.
• Influencing long-term platform strategy around automation, security and Kubernetes operations.

Skills

Kubernetes platforms

Platform automation

Cloud architecture

Stakeholder engagement

Tools

Terraform

GitLab CI/CD

Gateway API

Ingress NGINX

Kubernetes

Job description

Contract Length: 8 Weeks Initial Contract

Location: London - Bank Station. 5 days a week.

The Company

A high-growth fintech business is undertaking a significant modernisation of its cloud platform, with a focus on automation, scalability and operational resilience.

The organisation is investing heavily in reducing manual infrastructure management, standardising cloud services through Infrastructure as Code and upgrading critical components across its Kubernetes estate.

This engagement sits at the centre of that transformation and will give the successful contractor ownership of several foundational platform initiatives that will shape how engineering teams deploy, secure and operate services going forward.

The Role

This is a high-impact platform engineering engagement focused on building the infrastructure foundations required to support a scalable and highly observable cloud-native environment.

You'll take ownership of a number of strategic platform workstreams, including:

• Designing and delivering Terraform modules that manage Kubernetes clusters and associated cloud resources


• Automating infrastructure provisioning through GitLab CI/CD pipelines and Infrastructure as Code practices


• Establishing Terraform-managed DNS and standardised resource tagging frameworks across environments


• Building reusable RBAC modules and defining access governance through codified permissions models


• Leading the migration from legacy Ingress NGINX implementations to Gateway API architecture


• Restructuring application routing and ingress management to improve maintainability and operational control


• Embedding observability tooling and platform monitoring capabilities into cluster deployments


• Producing clear architecture diagrams and technical documentation that become the future operational standard


• Partnering with engineering leadership to establish scalable platform patterns across multiple environments


• Influencing long-term platform strategy around automation, security and Kubernetes operations

What We’re Looking For

• Strong experience building and operating Kubernetes platforms in cloud environments


• Deep Terraform expertise, including creation of reusable modules and infrastructure governance patterns


• Strong understanding of networking, DNS, VPCs, subnets and cloud infrastructure design


• Hands-on experience with Gateway API, ingress technologies and application traffic management


• Experience delivering Infrastructure as Code programmes from design through deployment


• Comfortable engaging senior technical stakeholders and driving platform standards across engineering teams

Why This Role

• Own several critical platform initiatives with visible business impact


• Influence the long-term cloud and Kubernetes strategy of a growing fintech


• Deliver greenfield automation and Infrastructure as Code capabilities rather than maintaining legacy systems


• Work directly with senior engineering leadership and architecture stakeholders