Site Reliability Engineer

Join us on the Journey...

You will leverage your deep technical expertise and problem-solving skills to support, evaluate, build, deliver, and maintain a high-quality infrastructure that meets the evolving needs of our business.

What you'll do:

• Design, implement, and maintain highly available and scalable systems on AWS
• Develop and maintain automation scripts and tools to streamline operations and reduce manual tasks
• Monitor system performance, identify bottlenecks, and implement optimizations to improve response times
• Forecast resource requirements and ensure adequate capacity to meet business needs
• Operate and maintain traditional IT infrastructures, cloud ecosystems, and IT services to meet business needs. Manage compute, storage, and networking environments in a MSP environment
• Manage infrastructure using IaC tools (e.g., Terraform, CloudFormation) to ensure consistency and reproducibility
• Implement robust monitoring and alerting systems to proactively identify and address issues
• Contribute to security best practices and implement measures to protect our systems and data
• Manage relationships with 3rd party vendors for technical support, build, and maintenance
• Participate in projects and service improvements related to infrastructure and data centre services. Identify, own, and implement proactive maintenance plans, including upgrades and patches
• Provide specialist-level incident and problem management support. Perform problem identification, root cause analysis, and recommend service improvements
• Meet service level agreements (SLAs) for infrastructure services
• Adhere to National Express's processes, including change controls, problem records, and supportability of technology
• Maintain infrastructure supporting documentation in line with improvements and maintenance activities
• Drive continuous improvement initiatives to enhance system reliability and efficiency

What you'll need:

• Three years plus of hands-on experience leading to a deep understanding and proficiency of AWS services (e.g., EC2, S3, RDS, Lambda, CloudFront) and best practices
• Experience working within an ITIL framework in organisations of 3000+ users
• Excellent customer-facing skills, including critical issue escalation resolution, root cause analysis, and accountability
• Understanding of Microsoft Server platforms, Hyper Converged Infrastructure, Domain services with hand-on experience, Backup, business continuity, Disaster recovery, and data centre operations
• Proven experience with Infrastructure as Code (IaC) tools like Terraform
• Strong scripting skills in Python or Bash
• Experience with monitoring and observability tools such as AWS CloudWatch, Grafana, or Datadog
• Knowledge of containerisation technologies (Docker, Kubernetes)
• Understanding of serverless technologies and their use cases
• Knowledge of Microservices architectures
• Solid understanding of networking concepts (TCP/IP, DNS, routing)

• Free Bus & Coach travel for yourself
• Complimentary coach travel for a Nominated Person or complimentary bus travel for a Spouse or Partner
• 50% discount for friends and family on full fares on our coach services
• Life Assurance
• Company pension
• Employee Assistance programme
• Private online GP service

National Express is committed to creating an inclusive workplace that reflects the diverse communities we serve and we positively encourage applications from all sectors of the community.

We are a Disability Confident Committed employer and should you require any adjustments at any stage of the recruitment process please let us know.

We reserve the right to close this advert early if we receive a high volume of applications before the advertised closed date.

Things to Note...

At National Express, we are really proud of our health and safety record and as a result, we operate a Drugs and Alcohol Policy which is applicable to all employees.

As part of your initial assessment, we will complete Drug and Alcohol testing and you may be subject to random tests during your employment.