API Platform Architect (.Net, APIM, Azure, Kubernetes)

Insight International (UK) Ltd; England; Remote; GBP 70,000 - 90,000; Part time

Job summary

A leading UK tech company seeks an experienced API Platform Architect to develop and oversee their enterprise API platform. This mid-senior level role is hands-on, requiring expertise in Azure cloud services, Kubernetes, Terraform, and .NET Core API development. The successful candidate will lead architecture decisions, guide best practices, and ensure the platform's security and scalability. Candidates must have significant experience and relevant certifications. This is a contract position with the possibility of hybrid work.

Qualifications

• 12+ years of industry experience required.
• Azure certifications (AZ-305/400), Kubernetes (CKA/CKAD/CKS) preferred.
• 7+ years in cloud engineering/architecture roles.

Responsibilities

• Own the architecture and design of the enterprise API Platform.
• Translate requirements into scalable, secure architectures.
• Govern API standards and lifecycle processes.

Skills

Azure cloud services

Kubernetes

Terraform

.NET Core API development

API security

Distributed systems

Troubleshooting

Education

Bachelor's or master's degree in computer science, engineering, or related field

Tools

Azure DevOps

Terraform

Job description

API Platform Architect – Insight International (UK) Ltd

We are seeking an experienced and highly technical API Platform Architect to lead the architecture, engineering, and continuous evolution of our enterprise API Platform.

This role is fully hands‑on, combining deep expertise in Azure cloud services, Kubernetes, Terraform, API security, and distributed systems while guiding best practices for .NET Core API development.

Key Responsibilities

• Own the architecture, design, standards, patterns, and roadmap of the enterprise API Platform across Azure, AKS, APIM, networking, security, observability, and DevOps layers.
• Translate business, security, and domain requirements into scalable, secure, highly available platform architectures.
• Provide authoritative architectural guidance while remaining hands‑on with implementation, debugging, optimisation, and reviews.
• Define and govern API standards, APIOps pipelines, lifecycle processes, platform SLAs/SLOs, and security enforcement.
• Architect multi‑region active‑active, blue/green, and zero‑downtime deployments.
• Design, implement, and govern complex Terraform modules for Azure and Kubernetes using providers such as azurerm, azapi, kubernetes, helm.
• Ensuring Terraform best practices, module versioning, automated validations, state management, and environment consistency.
• Drive platform provisioning automation and self‑service capabilities.
• Lead advanced troubleshooting (pods, networking, DNS, controllers, storage, ingress) and maintain high availability and resilience.
• Provide architectural guidance for .NET Core API integrations with APIM, AKS, event‑driven components, caching, and security layers.

Qualifications

• Bachelor's or master's degree in computer science, engineering, or related field with 12+ years of industry experience.
• Strongly preferred: Azure certifications (AZ‑305/400), Kubernetes (CKA/CKAD/CKS), Terraform certifications.
• 7+ years in cloud engineering/architecture roles, including platform ownership and hands‑on development/troubleshooting.
• Expert-level hands‑on experience with Azure services including AKS, APIM, Application Gateway, Front Door, Event Hub, Azure SQL, Storage Account, Key Vault, VNets, and others.
• Deep understanding of Azure networking, identity, private connectivity, and cost optimisation.

Seniority & Employment

Mid‑Senior level – Contract