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# Senior Platform Infrastructure Engineer

- **Company:** Copello Global
- **Location:** Woking, UK
- **Experience:** Expert
- **Salary:** £90,000
- **Contract:** Permanent contract
- **Skills:** Amazon Elastic Compute Cloud, Amazon S3, Systems Engineering, Bash Shell, Cloud Computing, Linux, DevOps, Domain Name System (DNS), Identity and Access Management, Virtual Private Networks (VPN), Python (Programming Language), Windows Servers, Routing, Windows PowerShell, Ansible, TCP/IP, Scripting, Load Balancing, System Availability, Firewalls (Computer Science), Amazon Virtual Private Cloud (VPC), Cloudformation, Amazon Relational Database Service, Containerization, Kubernetes, Infrastructure Automation Frameworks, Functional Programming, Terraform, Docker
- **Published:** November 6, 2026
- **Apply:** https://www.securityclearedjobs.com/job/802085968/senior-platform-infrastructure-engineer/

## About the Role

This role is ideally suited to an experienced infrastructure or platform engineer who combines strong technical expertise with a security-first mindset and a proven track record of delivering robust solutions in demanding, highly regulated environments., We're looking for a technically strong and proactive engineer with experience delivering infrastructure or platform engineering solutions within the defence, national security or wider public sector.

You will ideally bring:

 * Proven experience in cloud, platform, infrastructure or systems engineering within defence, national security or other security-sensitive environments.
 * Strong experience working with customers and multidisciplinary delivery teams to understand requirements and deliver robust technical solutions.
 * Experience in security risk analysis and risk management relating to infrastructure, cloud platforms and technology environments.
 * A strong understanding of core infrastructure services, including compute, storage, virtualisation, networking, identity management, backup and monitoring.
 * In-depth knowledge of cloud platforms and services, such as AWS EC2, S3, VPC, RDS, IAM and Lambda, or equivalent technologies.
 * Strong networking knowledge, including TCP/IP, DNS, VPNs, load balancing, routing, firewalls and secure connectivity.
 * Practical experience with infrastructure-as-code and automation tools such as Terraform, Ansible, AWS CloudFormation or equivalent.
 * Experience administering Linux and/or Windows Server environments, including system hardening, patching, troubleshooting and lifecycle management.
 * Familiarity with containerisation and orchestration technologies, including Docker and Kubernetes.
 * Experience with CI/CD pipelines, DevOps methodologies and modern software delivery practices.
 * A strong understanding of security principles and best practices across infrastructure, cloud and platform environments.
 * Scripting experience using languages such as Python, Bash or PowerShell.
 * Excellent analytical and problem-solving skills, with the ability to assess complex technical information, identify risks and drive improvements.
 * Strong communication skills and the ability to provide technical guidance to colleagues, customers and stakeholders.

Security Clearance Requirements

Candidates must already hold active Developed Vetting (DV) or Enhanced Developed Vetting (eDV) security clearance.

Given the sensitive nature of the programmes supported, existing DV or eDV clearance is an essential requirement for this position.

Location and Working Arrangements

The role will be based in Woking, Surrey, with an expectation that a proportion of your time will be spent working at client sites across London.

The position offers a flexible working environment, subject to project and customer requirements.

## Description

* Design, build and maintain secure, resilient and scalable platform and infrastructure services across cloud, hybrid and on-premises environments.
 * Lead the automation of infrastructure provisioning, configuration and operational processes using infrastructure-as-code, scripting and configuration management tools.
 * Support the deployment, monitoring and continuous improvement of platforms, ensuring high availability, performance, security and maintainability.
 * Work closely with engineering, architecture, security and delivery teams to translate operational requirements into effective technical solutions.
 * Provide technical leadership and guidance, helping teams implement engineering best practices and deliver reliable, secure infrastructure.
 * Identify and implement improvements to platform reliability, observability, deployment efficiency and operational performance.
 * Contribute to security risk assessments and the management of infrastructure-related risks, ensuring platforms meet relevant security requirements and standards.
 * Support the full infrastructure lifecycle, including hardening, patching, troubleshooting, maintenance and continuous service improvement.
 * Drive automation and modern DevOps practices to improve consistency, repeatability and efficiency across infrastructure delivery.