Azure Cloud Security Engineer - Tesco Mobile

Tesco; Slough; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading telecom provider in Slough is looking for a Cloud Security Lead. Your role will focus on securing Azure cloud infrastructure, enhancing visibility through logging, and integrating security into the development lifecycle. Competitive benefits and a supportive team culture await you at this influential company that prioritizes innovation and collaboration.

Benefits

Annual bonus scheme up to 20%

25 days holiday plus personal day

Private medical insurance

Pension scheme with contribution matching

Flexible working options

Employee Assistance Programme

Qualifications

• Proven experience in cloud security operations (Azure).
• Strong understanding of Azure Security Hub.
• Automation skills using PowerShell or Azure CLI.
• Infrastructure as Code experience (Terraform).
• Experience with SIEM tools.

Responsibilities

• Lead efforts to secure cloud infrastructure.
• Define Azure infrastructure security standards.
• Collaborate with teams to enhance logging.
• Validate infrastructure changes against security guidelines.
• Support CI/CD pipeline security.

Skills

Cloud security operations (Azure)

Azure Security Hub

PowerShell

Infrastructure as Code (Terraform)

SIEM tools

CI/CD pipeline security

SAST practices

Collaborative attitude

Tools

Azure CLI

GitHub

Splunk

Docker

Kubernetes

Job description

Overview

Tesco UK • Slough • Permanent • Apply by 04-Oct-2025

Shape the Future of Cloud Security at Tesco Mobile

Tesco Mobile is the UK's largest virtual mobile network, powered by O2 and backed by the strength of Tesco. We're known for doing things differently - winning awards for customer satisfaction and bringing the best of Tesco to over five million customers!

Join a tight-knit, inclusive team where your expertise in cloud security will make a real impact. You'll be empowered to innovate, supported by the scale and resources of two major brands.

Our Engineering team is agile, collaborative, and deeply invested in delivering secure, scalable solutions. You'll be part of the Run & Operate Chapter, working within the DevSecOps Squad - a group responsible for the infrastructure and tooling that powers Tesco Mobile's engineering systems.

While your focus will be Azure cloud security, you'll also collaborate with DevOps engineers, automation specialists, and platform experts to ensure our environments are secure, resilient, and future-ready.

What is in it for you

We're all about the little helps. That's why we give our wonderful colleagues bags of benefits. Including wellbeing services, an award-winning pension scheme and much, much more, our colleague reward package keeps on giving. And helps make every day a little better for you and your family. These include but are not limited to:

• Annual bonus scheme of up to 20% of base salary
• Holiday starting at 25 days plus a personal day (plus Bank holidays)
• Buy holiday salary sacrifice scheme (for salaried roles)
• Private medical insurance
• Retirement savings plan - save between 4% and 7.5% and Tesco will match your contribution
• Life Assurance - 5 x contractual pay
• 26 weeks maternity and adoption leave (after 1 year's service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 4 weeks fully paid paternity leave
• The right to request flexible working from your first day with us
• Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing
• A Colleague Clubcard for you & a family member (after 3 months of service), giving you access to lots of discounts in-store & online
• Great colleague deals and discounts, saving you money on everyday purchases, eating out and utility bills for the home
• Access to our colleague networks providing a space for colleagues to come together from a range of backgrounds. For more information about our colleague networks please click here
• Opportunities to get on - take advantage of our ongoing learning opportunities and award-winning training, to help you achieve the job and career you want

Click Here to read more about the full range of benefits we have available for our colleagues

You will be responsible

We will be looking for you to lead efforts to secure our cloud infrastructure, improve visibility through logging and SIEM, and embed security into our development lifecycle.

• Define and evolve Azure infrastructure security standards
• Act as an authority in cloud security
• Collaborate with development teams to enhance logging and observability
• Validate infrastructure changes against security guidelines
• Work with the Cyber Security Team to align on strategy and compliance
• Advocate for security improvements with clear, business-focused communication
• Support DevOps initiatives including CI/CD pipeline security and automation

You will need

Essential skills & experience:

• Proven experience in cloud security operations (Azure)
• Strong understanding of Azure Security Hub and posture management tools
• Automation skills using PowerShell or Azure CLI
• Infrastructure as Code experience (Terraform)
• Experience with SIEM tools and log management
• CI/CD pipeline security integration
• SAST and secure coding practices
• A collaborative attitude and eagerness to learn

Bonus skills:

• Exposure to AWS environments
• GitHub & GitHub Actions
• Splunk (data streams, dashboards, ingestion)
• Python, AWS CLI, and other automation tools
• Docker and Kubernetes

#LI-AF2

#LI-Hybrid

About us

A 50-50 joint venture between Tesco and VMO2 that was established back in 2003, Tesco Mobile has gone from strength to strength as we've launched into new services and markets. With more than 5 million customers, we're the largest mobile virtual network operator in the UK. We're proud to have an inclusive culture that's uniquely Tesco Mobile, with a strong sense of community, plus all the benefits of working for one of the shareholders.

We care for human connection and we keep our customers at the heart of everything we do, which is why we've embraced the Agile way of working. Agile is more than just a methodology - it's a liberating journey that puts customers and purpose first. It empowers us to self-organise, collaborate, co-create and rapidly inspect and adapt everything we do - allowing us to respond at pace to our customers' needs. It encourages variety of thought and enables us to thrive, both individually and collectively.

We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We're proud to have been accredited Disability Confident Leader and we're committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please click here.

We're a big business and we can offer a range of diverse full-time & part-time working patterns across our many business areas, which means that we can find something that works for you. We work in a more blended pattern - combining office and remote working. Our offices will continue to be where we connect, collaborate and innovate. If you are applying internally, please speak to the Hiring Manager about how this can work for you - Everyone is welcome at Tesco.