Cyber Security Engineer (Tesco Mobile)

Tesco Mobile • Slough or Manchester • Apply by 31-Mar-2026

This role is crucial in safeguarding our customers' data and ensuring the integrity of our systems. The Cyber Security Engineer will be responsible for implementing and improving security controls across the business. Being a pivotal colleague in driving meaningful change in our cyber maturity program. The Cyber Security Engineer will work collaboratively to deliver workstreams including, but not limited to, Perimeter, Network, Endpoint, Software, Data, and Foundational controls.

We are an Agile business organised around cross functional end-to-end squads, which are then grouped into Tribes and Centres of Excellence (CoE). This role will require collaboration across all areas of the business, so how you work is just as important as what you do. You should be just as comfortable creating code and deploying technical solutions, as you are educating others and enabling the business, while always thinking customer first.

This role can be based in any of our 3 head offices (Slough, Welwyn Garden City or Manchester). Occasional travel to the other offices may be required and is expensable. Tesco Mobile currently operate a hybrid working arrangement with a minimum of 2 days per week collaborating with colleagues at an office, Store, or Supplier location. This role has potential for career growth or learning opportunities for the right person.

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 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 for

As a Security Engineer, you will take responsibility for implementing controls on an enterprise scale. Taking guidance from our internal controls framework, you'll be able to translate complex requirements into effective & scalable solutions, thinking not only about implementation but also the run & operate of the controls. Understanding that one-size does not fit all, you must be creative in your approach, engaging with teams across the business to make their products more secure while balancing the need to move at speed and be flexible.

You will need

• An ambition to constantly learn new skills and develop knowledge.
• Attention to detail and great communication skills.
• Experience of platforms like AWS & Azure, as well as Github and Github Advanced Security.
• Implemented enterprise level technical controls, applying your deep & broad knowledge across multiple security domains.
• Proven record of integrating security features in the software development life cycle.
• Proficiency in at least one programming or scripting language such as Python, Power Shell, Terraform or similar.
• Ensuring that systems are safe and secure against threats by keeping in mind that the systems must be secure by design.
• Keen to cultivate a culture of collaboration, innovation and bringing industry standards to everything we do.
• Should be passionate about improving ways of working and best practices by understanding the customer.
• A passion for technology and can share that passion with others.

Nice to haves

• Experience implementing platform specific controls in AWS and Azure.
• Understanding of application security tooling, in particular how to integrate alongside development workflows.
• Designed & deployed identity & access management solutions at scale.
• Integrating security by design & default in a complex environment.
• Have awareness and understanding of current cyber security threats, actors and their techniques.
• Knowledge of relevant frameworks and regulations, such as Mitre ATT&CK, NIST, TSA
• Any relevant study or certifications, either formal or self-learning

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.