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Senior Infrastructure Engineer

Job in City of Westminster, Central London, Greater London, England, UK
Listing for: Simply Business
Full Time position
Listed on 2026-01-05
Job specializations:
  • IT/Tech
    Cloud Computing, Systems Engineer
Job Description & How to Apply Below
Location: City of Westminster

Overview

As a Senior Biz Ops Infrastructure Engineer you'll be a key player in managing our global, multi-site IT infrastructure, ensuring its smooth operation, and driving continuous improvement. You will collaborate with a global team including 2 mid-level infrastructure engineers, a Service Desk and Support team, and an Information Security team. The role spans a diverse technology stack from end-user devices to cloud environments, with a focus on automation, security, and scalability.

This position emphasizes designing IT architectural controls and standards, solving complex problems in a fast-paced environment, mentoring junior colleagues, and driving continuous improvement.

Responsibilities
  • Lead and deliver large-scale technical projects across end-user device fleets (Windows/macOS), networks, and cloud environments.
  • Translate complex business initiatives into actionable project plans and ensure successful implementation in a modern cloud environment.
  • Manage IT and Infrastructure projects that enhance processes, networks, device deployments, and cloud/SaaS services.
  • Oversee the day-to-day operations and maintenance of our network infrastructure, including VMware SD-WAN, Meraki LAN, Mist WiFi, and Netskope SASE.
  • Support and supervise two mid-level IT infrastructure engineers, helping them grow professionally.
  • Drive automation and Infrastructure as Code (IaC) initiatives, leveraging tools like Terraform for configuration management and CI/CD.
  • Develop and maintain applications and scripts (Power Shell, Bash, Terraform and Python) to automate manual processes and improve efficiency.
  • Define solutions, architectural standards and controls ownership; serve as an escalation point and architectural owner for internal technology platforms.
  • Support the broader team's implementation of mass deployment and management strategies for Windows and macOS end-user devices.
  • Ensure industry-standard compliance and enhance security within SaaS and PaaS cloud infrastructure.
  • Identify areas for automation and continuous improvement, advocating for prioritization, including Cloud: AWS, Azure and GCP;
    Networking: VMware SD-WAN, Mist WiFi, Meraki LAN, Netskope SASE; IAM:
    Okta, Google Workspace SSO, SAML, OIDC and SCIM integrations, Entra

    ID;
    Automation/IaC:
    Git Hub, Power Shell, Bash, Python, Terraform;
    Patching:
    Automox, Nudge, Autopatch;
    People Data:
    Workday; ITSM:
    Fresh Service.
  • Lead lifecycle of Privileged Access Management (PAM) solutions, including policy definition, Just-In-Time access, and proactive monitoring of privileged activity for security threats.
Qualifications
  • Experience in infrastructure architectural leadership in a modern IT environment with a strong focus on cloud-first solutions.
  • Familiarity with Git Hub and proven experience writing and using scripts in production environments with Power Shell, Bash, Terraform or Python.
  • Experience working in a full cloud environment, with a strong preference for SaaS.
  • Solid understanding of APIs and experience using them to pull information or update configurations to drive automation.
  • Demonstrated IaC experience with working knowledge of Terraform or Ansible and an understanding of CI/CD pipelines.
  • Experience designing, implementing, maintaining, and supporting IAM solutions (e.g., Azure AD, Okta, Google Workspace).
  • Capability to lead the lifecycle of PAM solutions, including policy definition and Just-In-Time access.
Benefits and Work Environment

We offer a great work-life balance with hybrid work options and a comprehensive benefits package. This includes generous leave policies, private medical insurance, life assurance, pension matching, and opportunities for personal development and mental health support. Salary is competitive and may include performance-based bonuses. We provide tools and programs to support learning and growth, and offer flexible benefits to meet individual needs.

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Position Requirements
10+ Years work experience
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