VodafoneThree - Senior SRE

Location: Newbury or London + Hybrid
Salary: Excellent basic salary plus bonus and Vodafone benefits
Working hours: Full time 37.5 hours per week – Monday to Friday



Hybrid

We believe that through collaboration and connection with our colleagues we can achieve great things. Our hybrid working approach allows our people to work both in the office and at home, providing the flexibility and resources you need to succeed in your role. We don't require you to be in on specific days; instead, we ask people to come into the office 2-3 days each week, for at least 8 days per month. You should work with your line manager to understand what their expectations are for you, your specific role and your team.

Who We Are

We’re here to build a network the UK can count on – one that connects people, places and potential. Because no matter where you live, what your background is, or how you get online – we think everyone deserves the same chance to stay connected, and with VodafoneThree, that future’s being built – today.

We’re creating more than the UK’s best network. We’re helping close the digital divide, empower communities and drive meaningful progress.

We believe that everyone should feel they belong. Whoever you are and whatever your story, there’s space for you here. We’re building a workplace where different perspectives are welcomed, voices are heard, and everyone feels safe to show up as themselves.

You’ll join a team that genuinely cares – about each other, about our customers, and about the future we’re building. From day one, you’ll be welcomed, valued and encouraged to bring your whole self to work.



Why VodafoneThree

Join us and you’ll be at the heart of change. That means building responsibly, investing sustainably and creating opportunities that last.

We’re not just expanding connectivity; we’re reimagining what a connected nation looks like. With £11bn invested in 5G and digital infrastructure, your work will directly power businesses, services, and communities across the country.

You’ll work on real challenges, with real impact, across every corner of the country. Wherever you join us, whatever your role, you’ll be helping to build a future that works better for everyone.

We move at pace, because what we’re building matters – and we’re learning as we go. We’re proud of the progress we’ve made, but we’re just getting started.

Join our IT teams, which is at the core of our digital future, analysing and operating all our internal and customer-facing systems, with the aim of delivering the best customer experience. None of it would be possible without our innovative teams, creating a connected future with technologies like Cloud, AI and big data.

What you’ll do

The Senior Engineer (SRE) sits within Cloud Developer Platforms / Digital Engineering and helps build, operate and continuously improve the reliability of VodafoneThree's customer-facing platforms and developer experience. The role combines strong software engineering with operational excellence, taking ownership of platform reliability, observability, automation and incident reduction. It works closely with software engineers, architects, security teams and product teams so services meet availability, performance and resilience targets while enabling rapid and safe delivery.

• Own service reliability outcomes through the definition, implementation and measurement of SLIs, SLOs and error budgets.
• Drive continuous improvements in platform availability, resilience and performance across customer-facing platforms and developer services.
• Identify and eliminate operational toil through automation, self-service capabilities and better engineering workflows.
• Participate in on-call rotations supporting production services and lead technical incident response during major incidents.
• Drive root cause analysis and ensure meaningful preventative actions are delivered after incidents.
• Improve operational readiness through runbooks, playbooks, automation and clear production support standards.
• Design, build and maintain cloud-native infrastructure across Azure, AWS and Kubernetes-based platforms.
• Develop and maintain Infrastructure as Code using Terraform and related tooling.
• Design and implement effective logging, metrics, tracing, alerting, dashboards and service health reporting.

Who you are

• Strong background in software engineering and cloud infrastructure, with experience operating large-scale production environments. – Essential
• Strong knowledge of Azure, AWS or multi-cloud platforms and Kubernetes / container-based platforms. – Essential
• Strong Infrastructure as Code experience using Terraform and experience building CI/CD pipelines and deployment automation. – Essential
• Strong understanding of monitoring, observability, telemetry, SLOs, SLIs and error budgets. – Essential
• Experience participating in on-call, incident management and root cause analysis processes. – Essential
• Ability to write production-quality code and automation in languages such as Python, Go, – Essential Java or similar-– Essential
• Experience with Datadog, Grafana, Prometheus or OpenTelemetry; product development; platform engineering / internal developer platforms; FinOps and cloud cost optimisation- Desirable

Worried that you don’t meet all the desired criteria exactly?
We know that everyone is unique, with multiple aspects to their identity and different experiences behind them. We are passionate about Inclusion for All and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to apply as you may be the right candidate for this role or another role, and our recruitment team can help you see how your skills fit in.

What we offer

We care about our people’s success by offering great pay, bonuses, up to 28 days off plus bank holidays, and paid time for charity work. You can personalise our benefits for you and your family, like discounts, vouchers, a pension plan and loads more. We help with your career through our amazing learning tools and top-notch parental leave policies.



Need to Know

We are regulated by the Financial Conduct Authority and all offers of employment for this role are subject to background checks, including criminal (DBS) and financial checks to meet the regulators standards.

If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, a sign language interpreter, or assistive technology, please refer to the Accessibility section of our Careers website () for guidance.

We use AI in different parts of our business to boost innovation, improve efficiency, and create new opportunities. We know many candidates use AI to fine-tune their CVs or prepare for interviews, but what we really care about is your unique experiences and achievements.

During the interview, we want you to rely on your own knowledge and skills to show us who you really are—your personality, creativity, and abilities. Above all, we’re looking for authenticity and can’t wait to get to know the real you.

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