Site Reliability Engineer

At Allwyn, the Site Reliability Engineer supports the reliability and performance of digital services by operating production systems, building automation, and improving observability.

You will work closely with Senior SREs and engineering teams to ensure services remain stable, scalable, and well-instrumented across both steady-state and high-demand events.

What you'll be doing

Objectives of the role

• Maintain reliable production services across digital platforms
• Improve monitoring, alerting, and observability coverage
• Reduce operational toil through automation
• Support incident response and continuous improvement
• Contribute to performance and scaling of services

Production operations

• Participate in 1-in-4 on-call rotation:

• Respond to incidents

• Support out-of-hours diagnosis

• Monitor system health across:

• Web and mobile platforms

• Games platforms

• Player services

Troubleshoot issues across application, infrastructure, and network layers

Incident response & improvement

• Support incident triage and resolution
• Participate in post-incident reviews and implement remediation actions
• Maintain and improve runbooks and operational documentation

Observability

• Implement and maintain monitoring using:

• Splunk

• CloudWatch

• Grafana

Improve:

• Logging quality
• Metrics coverage
• Alerting accuracy

Contribute to linking system performance to user experience signals

Automation & engineering

• Develop scripts and tooling to:

• Reduce manual tasks

• Improve repeatability and reliability

Contribute to infrastructure management using TerraformSupport deployment processes and CI/CD improvements

Platform & cloud

• Work with AWS services (primarily ECS, with exposure to EKS/Kubernetes)
• Support scalability and availability improvements
• Assist in performance tuning and capacity planning

Collaboration

• Work closely with engineers to:

• Improve service reliability

• Support releases and production readiness

Contribute to adoption of SRE practices within teams

• Experience in cloud environments (AWS preferred)

• Working knowledge of:

• Containers (ECS; exposure to Kubernetes is a plus)

• Infrastructure as Code (Terraform)

Basic programming/scripting capability (Python, Bash, etc.)

Troubleshooting & operations

• Ability to diagnose issues in distributed systems
• Familiarity with monitoring and logging tools
• Understanding of Linux systems and networking fundamentals

SRE fundamentals

• Understanding of:

• Monitoring and alerting concepts

• Reliability principles

• Incident response processes

Willingness to be part of an on-call rotation

Desirable Experience

• Exposure to:

• SLOs / SLIs / error budgets

• CI/CD pipelines

• Performance and load testing

Familiarity with observability platforms used in modern digital estatesExperience in customer-facing, high-availability systems

• Company Bonus Scheme

• Matched pension contributions up to 8.5%

• 26 days annual leave + 2 Life Days (and bank holidays)

• Single Private Health Cover

• Complimentary Private Medical

• Income Protection

• Flexible Benefits - EV Scheme, Money Coach, Will Writing, Mortgage Advice, Dental and Eye Care Schemes.

• Enhanced Family Leave (Maternity, Paternity, Adoption)

• Wellness Allowance £500

• Employee Assistance Programme

• Discounted Health Assessments

• Volunteering Days

• Matched Funding

We are a Disability Confident Leader which means we've taken proactive steps to ensure our workplace is accessible and inclusive for disabled and neurodivergent colleagues and candidates. As part of this we offer an interview to disabled applicants who meet the essential requirements of the job.

At the heart of everything we do is our vision to change lives every day, and our mission to grow The National Lottery responsibly and champion its impact. We are Allwyn UK, part of the Allwyn Entertainment Group - a multi-national lottery operator with a market-leading presence across the USA (Michigan and Illinois) and Europe, including Czech Republic, Austria, Greece, Cyprus and Italy. While the main contribution of The National Lottery to society is through the funds to good causes, at Allwyn we put our purpose and values at the heart of everything we do. Join us as we embark on a once-in-a-lifetime, largescale transformation journey by creating a National Lottery that delivers more money to good causes., At Allwyn, we are dedicated to changing lives and growing the National Lottery responsibly, championing its positive impact on people, places, and the planet. * Innovation - We pride ourselves on it! We're constantly looking for new ways to excite our customers, bringing new products to market to enjoy which is all supported by our responsible play values and making them accessible to all. * Giving back - Did you know that playing the lottery generates around £30m a week for charities and good causes in the UK? Our aim is to have doubled this number by the end of the first 10-year license. * Sustainability - Our aim is to become a net zero national lottery. We have 2030 targets to decarbonise our operations and energy. We've already transitioned to renewable energy providers, made our London and Watford offices zero gas, and ensured our fleet consists of low-emission vehicles. In addition, we're working with our value chain partners to develop a net zero target date. * Empowering every voice - We believe in creating a culture where everyone feels they belong, can be themselves, has access to opportunities and can thrive for the benefit of good causes. Our diverse teams are working hard to make all parts of The National Lottery inclusive - whether people play a game in a store or online, because when everyone can play, everyone wins.. An inclusive reward offering with wellbeing at the centre At Allwyn, inclusion is built into how we care for our people. Our benefits and policies support colleagues and their families at every stage of life and career. By prioritising wellbeing and belonging, we create a workplace where everyone feels valued, rewarded, and empowered to succeed. Our people are more than colleagues - they're winners, driving positive change and making a real difference in communities.