Senior Infrastructure Engineer

Senior Infrastructure Engineer

Epsom & Barbican, London | Hybrid Working (One office day a week) | Permanent | Full-Time

Competitive salary available, depending on experience

37.5 hours per week

Overview

The Senior Infrastructure Engineer role is responsible for designing, implementing, and maintaining the core infrastructure that underpins the organisation’s applications and services. This role blends hands‑on engineering with strategic thinking, ensuring systems are secure, scalable, resilient, and aligned with long‑term business goals. The engineer acts as a subject‑matter expert, mentor, and key contributor to architectural decisions.

Key Responsibilities will include:

Design and evolve cloud and on‑premises infrastructure with a focus on scalability, reliability, and performance, supporting migration of applications and databases from on-premise to Azure Cloud.

Implementing identity, access control, and security best practices (Entra ID, RBAC, managed identities, Key Vault, secure baselines, patching)

Implementation of infrastructure-as-code (IaC) using tools such as Terraform, ARM/Bicep, or CloudFormation.

Collaborate with DevOps, Networking, Security, and Engineering teams to deliver integrated, compliant and robust Azure Cloud platform solutions and maintain clear documentation.

Manage patching, vulnerability remediation, and secure configuration baselines.

To be successful I this role, you should demonstrate:

A core understanding and hands-on working experience with the Azure Cloud infrastructure, hosting and services e.g. IaaS, PaaS, Serverless computing, Databases and all-in-one Azure cloud-based solutions.

Experience working with infrastructure-as-code, configuration and automation tools such as Terraform to provision and manage Cloud infrastructure and automate software delivery processes.

Strong proficiency with Windows Server and Linux, and in automation and scripting (PowerShell, Bash).

Experience with Azure identity services (Entra ID), RBAC, managed identities, and Key Vault.

Experience designing and supporting highly available and resilient cloud environments (backup, restore, Disaster Recovery).

Strong understanding of cloud security principles, including secure configuration, patching, and vulnerability management.

Solid understanding of networking, load balancing, DNS, firewalls, and VPNs

Experience implementing monitoring and observability solutions (Azure Monitor, Application Insights, New Relic, or similar).

Optimise cost, performance, and resource utilisation across environments.

Collaboration & Leadership

Partner with software engineering, product, and security teams to deliver robust and scalable solutions.

Mentor junior engineers and contribute to building a high‑performing infrastructure team.

Influence technical direction and contribute to long‑term infrastructure strategy.

Document systems, processes, and architectural decisions clearly and effectively.

Professional Attributes

Strong analytical and problem‑solving skills.

Ability to lead complex technical initiatives with minimal oversight.

Excellent communication skills, with the ability to explain technical concepts to non‑technical stakeholders.

A mindset focused on automation, reliability, and continuous improvement.

Work within Product Engineering teams and collaborated closely with Product Owners, Architects, Designers, DevOps, QA and Delivery, enabling and upskilling teams in cloud platform capabilities, infrastructure-as-code, and operational tooling.

This role will provide you with the opportunity to:

Working across a variety of clinical applications that deliver various services connected to health care.

Work closely with cross-functional product teams to design and implement appropriate cloud native solutions, codifying the infrastructure, configuration, and CI/CD pipelines to automate processes and improve efficiency.

Work collaboratively with like-minded colleagues who are focused on improving the health of our nation and making a real difference to peoples’ everyday lives

Helping you feel good.

We want you to love coming to work, feeling healthy, happy and valued. That’s why we’ve developed a benefits package with you in mind. Here, you can choose from a range of fitness, lifestyle, health and fitness wellbeing rewards, such as free gym membership, health assessments, retail discounts and pension options.

At Nuffield Health, we take care of what’s important to you.

If you like what you see, why not start your application now? We consider applications as we receive them and reserve the right to close adverts early (for example, where we have received an unprecedented high volume of applications). So, it’s a good idea to apply right away to ensure you’re considered for this role.

Apply today… It starts with you.