Senior Infrastructure Engineer

Senior Infrastructure Engineer – Oritain

Apply for the Senior Infrastructure Engineer role at Oritain
, a global leader in product verification with offices in Auckland, Dunedin, London, Singapore, and Washington D.C. The position is based in London, United Kingdom, with a hybrid working model requiring a minimum of three days per week in the London office.

Our mission is to protect people and the planet by harnessing science, technology, and services to build a community of origin‑verified suppliers and buyers. As a Senior Infrastructure Engineer, you will be the backbone of this mission, responsible for building, automating, and securing the Microsoft Azure cloud platform that hosts all of our mission‑critical software and services.

• Azure Platform Ownership – Design, implement, and maintain the core architecture of our platform on Microsoft Azure, ensuring high availability, disaster recovery, and cost optimisation.
• Infrastructure as Code – Lead the development and maintenance of all infrastructure using IaC tools such as Terraform or Azure Resource Manager templates, achieving immutable and repeatable environments.
• Cloud Security – Implement and enforce cloud security best practices, including network configuration (VNETs, firewalls), identity management (Azure AD, RBAC), and platform governance.
• Developer Enablement – Establish and maintain robust, self‑service tools and environments that allow software engineers to deploy, monitor, and debug their applications quickly and reliably.
• CI/CD Pipeline Ownership – Own and enhance CI/CD pipelines, primarily using Azure Dev Ops, to automate code testing, security scanning, and seamless delivery to production.
• Operational Excellence – Implement comprehensive logging, monitoring, and alerting strategies (e.g., Azure Monitor, Application Insights) for rapid detection and resolution of production issues.
• Cross‑Functional Collaboration – Work closely with Backend and Frontend Engineers to define service requirements, plan resource scaling, and troubleshoot complex production issues.
• Technical Mentorship – Provide technical guidance and mentorship to the wider engineering team on cloud architecture, security principles, and operational best practices.
• Documentation – Create and maintain clear, high‑quality documentation for infrastructure, deployment processes, and operational runbooks.

We operate a hybrid model, requiring a minimum of three days per week in the London office. The organization is Microsoft Azure cloud‑native, with .NET services and React/Angular frontends deployed via automated pipelines. The Senior Infrastructure Engineer will serve as the senior voice for infrastructure and Dev Ops within our mission‑driven software engineering team.

• Senior Cloud Expertise – 5+ years of professional experience focused on cloud infrastructure and operations.
• Azure Depth – Hands‑on expertise with a wide range of Microsoft Azure services (App Service, Functions, Networking, Security Center).
• IaC Proficiency – Proven experience building and managing infrastructure using IaC tools, with a strong preference for Terraform.
• CI/CD Expertise – Expert knowledge of CI/CD systems, preferably Azure Dev Ops Pipelines.
• Systems & Networking – Strong understanding of Linux/Windows administration, IP networking fundamentals, and cloud‑native security concepts.
• Scripting – Proficiency in scripting languages such as Power Shell, Bash, or Python for automation and operational tasks.

• Experience with container technologies (Docker, Kubernetes).
• Familiarity with compliance standards or regulated environments.
• Experience optimizing database services (Azure SQL, Cosmos DB) for performance and cost.

• Paid Leave – 35 days inclusive of public holidays.
• Birthday Off, Volunteering Leave Allowance, Enhanced Parental Leave.
• Life Insurance, Healthcare Cash Plan, Employee Assistance Programme (EAP).
• Pension and Monthly Wellbeing Allowance.
• Office perks:
  Breakfast, snacks, Friday lunch & barista coffee machine.
• Learning portal with over 100,000 assets for professional development.
• Hybrid working set‑up in Farringdon, London.

We will be winding down for the festive break between Friday 19th December and Monday 5th January. During this time, responses to applications may be slightly delayed. We appreciate your patience and look forward to connecting with you soon.

Senior level – Mid‑Senior level. Full‑time. Information Technology – Technology, Information and Internet.

London, United Kingdom.

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