Site Reliability Engineer

Job Title

Platform Engineer

Location

Leeds or London, UK (3 days per week on-site; travel & accommodation expenses covered)

Position Type

Permanent

Salary

£80,000 - £85,000 GBP per annum (Flexible for exceptional candidates)

Security Clearance

Active SC Clearance Required

Notice Period

Immediate Joiners or up to 2 Weeks Max

About the Role

We are seeking a Senior Platform Engineer to design, build, and maintain efficient, scalable, and reliable platform solutions. In this role, you will optimize AWS resources, drive automation across CI/CD pipelines, and collaborate directly with development and strategy teams to elevate engineering standards across the organization.

Note: This role requires 3 days per week on-site in either Leeds or London. Expenses for travel and accommodation (up to 3 days/week) will be provided for candidates travelling to the office.

Key Responsibilities

• Platform & Infrastructure Management: Design, build, and maintain cloud-based (AWS) resources, ensuring optimal performance, monitoring, and reliability.

• Infrastructure as Code (IaC): Develop, troubleshoot, and maintain hands-on CloudFormation scripts and templates.

• Automation & CI/CD: Implement and manage automated CI/CD pipelines using Jenkins (multibranch, Groovy Scripting) and GitHub Actions for secure deployments.

• Architecture Strategy: Feed engineering insight into the Strategy and Architecture team to improve engineering practices across the organization.

• System Operations: Manage Linux-based web services, containerized environments, and configuration management tools.

• Documentation & Best Practices: Document operational procedures, infrastructure policies, and deployment frameworks.

Key Requirements & Qualifications

• Experience: 10-15 years of relevant engineering experience with a solid background as a Senior Platform Engineer.

• Security Clearance: Must hold an Active UK SC Clearance .

• IaC & AWS: Strong hands-on experience with AWS CloudFormation (Scripting, debugging, and troubleshooting is mandatory) alongside core AWS services (EC2, NLB, API Gateway, ASG).

• CI/CD & Scripting: Proficiency in Jenkins pipeline creation/Groovy Scripting, GitHub Actions, and Python Scripting.

• Containers & Config Management: Working knowledge of Docker, Kubernetes, and Chef.

• OS & Web Services: Solid foundation in Linux command-line operations and troubleshooting web services.

• Collaboration: Proven ability to work seamlessly across development, infrastructure, and product teams to streamline software delivery.