Harrington Starr
Platform Engineer
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Platform Engineer – Kubernetes & Infrastructure Automation (Fintech)
Day Rate: £400-500 per day
Outside IR35
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:
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- 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
- Proven experience implementing CI/CD pipelines using GitLab
- 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
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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
Apply
To apply – click the link or email Barry.Ansell@HarringtonStarr.com for a faster response
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