Cloud Security Engineer AWS

Overview Tesco UK • Slough • Apply by 09-Nov-2025 As a Cloud Security Engineer within the Run and Operate chapter at Tesco Mobile, you'll play a key role in securing and optimising our cloud platforms—primarily AWS and Azure. You'll help design, manage, and deploy secure solutions across a variety of environments, maintaining a proactive programme of work to address evolving security priorities. Your responsibilities will include identifying threats and risks, implementing effective mitigations, and validating infrastructure changes. You'll also collaborate closely with the Cyber Security Team and your squad to embed robust security checks into CI/CD pipelines, strengthening our overall cloud security posture. 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 years\' 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 read more 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 Responsibilities You will be responsible for As a Cloud Security Engineer, you\'ll play a key role in securing our cloud infrastructure and services. You\'ll work within our DevSecOps squad to: Lead and implement cloud security improvements across AWS and Azure environments. Use tools like AWS Security Hub and Azure Security Center to monitor and enhance our security posture. Integrate security controls into CI/CD pipelines and development workflows. Collaborate with the Cyber Security Team and application developers to embed security processes. Validate infrastructure changes to ensure compliance with security standards. Act as an expert on cloud and infrastructure security. Requirements Must-have experience: Strong hands-on experience with AWS cloud security. Proven track record of delivering cloud and SaaS security improvement projects. Familiarity with CI/CD pipelines and integrating security tooling (e.g., SAST). Experience with infrastructure validation, threat identification, and risk mitigation. Nice to have: GitHub and GitHub Actions experience. Hands-on experience with Azure cloud security Familiarity with Splunk, IaC tools, and automation using AWS CLI, Python, or PowerShell. Exposure to containerisation (Docker, Kubernetes) and DevOps practices. 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 read more. 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. #J-18808-Ljbffr