Site Reliability Engineer in Watford

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 acrossthe USA (Michigan and Illinois) and Europe, including Czech Republic, Austria, Greece, Cyprusand Italy.

While the main contribution of The National Lottery to society is through the funds togood causes, at Allwynwe 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 togood causes.

We’lltalk a bit more about us further down the page, but for now –let’stalk about the role and whowe’relooking for…

A bit about the role

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.

• Whatyou’llbe 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
• Cloud Watch
• 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 Terraform
• Support 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
• What experiencewe’relooking for
• Technical
• 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 estates
• Experience in customer-facing, high-availability systems

About us

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’reconstantly looking for new ways to excite our customers, bringing new products to market toenjoywhich 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 andgood causesin 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’vealready 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’reworking 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, everyonewins..

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 colleaguesand their familiesat 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’rewinners, driving positive change and making a real difference in communities.

Benefits

• 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 meanswe’vetaken 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.

If you need anyassistanceor adjustments to this job description or in the application process, please contact a member of the talent team atcareers@allwyn. co. ukandwe’llbe happy to help.

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