Full job description

Infrastructure Engineer
Inside IR35, £500 P/D
Active SC would be advantageous
Predominately remote
6 month contract, scope to extend


Overview
We are looking for an Infrastructure Engineer to support a large-scale programme moving applications and services from legacy into cloud and managed hosting environments.
The work is hands-on and delivery focused, with an emphasis on safe, structured migration and minimal disruption to live services. This is a transition role rather than a cloud transformation position, with engineers working within established migration approaches and patterns.


What You’ll Do
*Support the migration of applications and services from legacy applications into target hosting environments.
*Apply established migration approaches and patterns to individual services.
*Support service discovery, dependency mapping and environment readiness.
*Work across development, test and production environments to coordinate migration activity.
*Complete infrastructure and configuration changes required to support migration.
*Help re-establish and validate connectivity, including network, firewall and service dependencies.
*Support rehearsals, cutovers, smoke testing and post-migration validation.
*Identify risks, support mitigations and contribute to rollback planning where required.
*Collaborate with architects, application teams, platform teams, security specialists and service SMEs to unblock delivery.
Essential Skills and Experience
*Strong infrastructure engineering or systems-administration background with hands-on delivery experience.
*Experience supporting application, infrastructure or hosting migrations.
*Solid understanding of Linux and/or Windows systems, networking and environment configuration.
*Ability to work across multiple environments and apply controlled change safely.
*Experience supporting live services in complex enterprise environments.
*Experience troubleshooting infrastructure, configuration and connectivity issues.
*Clear communication skills and the ability to work effectively across technical teams.
*Pragmatic and delivery focused, with the ability to work with legacy technology and incomplete information.


Desirable
*Cloud infrastructure experience.
*Experience supporting large-scale hosting migration programmes.
*Exposure to Infrastructure as Code, such as Terraform or CloudFormation.
*CI/CD pipeline experience, such as GitLab, Jenkins or Bamboo.
*Scripting skills using Bash, Python or PowerShell.
*Experience with VMware or comparable virtualisation platforms.
*Understanding of DNS, routing, firewalls, load balancing and secure connectivity.
*Exposure to legacy application-hosting technologies, middleware or databases.
*Experience of migration rehearsals, production cutovers, rollback and early-life support.
*Current or transferable security clearance.


What We’re Looking For
*Delivery focus: gets services moved safely and at pace.
*Pragmatic mindset: works effectively with existing systems rather than seeking to redesign them.
*Good judgement under pressure, particularly around risk and controlled change.
*Comfortable operating across multiple teams and mixed legacy environments.
*Willing to complete detailed, transactional migration work including configuration, validation and documentation.
*Positive team player who contributes to a strong engineering culture.