DevSecOps Engineer Azure

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

Job summary

A leading mobile network operator is seeking a DevSecOps Engineer to join their cross-functional team in Slough. Responsibilities include managing and optimizing infrastructure security, automating deployment processes, and working closely with various engineering teams. Candidates should have a strong background in security operations management, experience with Azure, and proficiency in automation tools. Tesco Mobile values diversity and inclusivity, offering flexible working patterns in a supportive environment that prioritizes collaboration and innovation.

Benefits

Diverse working patterns

Supportive community

Inclusive workplace culture

Qualifications

• Significant commercial experience with security operations management.
• Experience with Azure and automating tasks using PowerShell or Azure CLI.
• Willingness to learn new skills.

Responsibilities

• Manage and deploy the environment securely and optimally.
• Coordinate with application development teams to resolve issues.
• Incorporate security checks into the CI/CD pipeline.

Skills

Security operations management

Cloud computing

PowerShell automation

Terraform

Collaboration in a team

Tools

Azure Security Hub

Terraform

Splunk

Docker

Kubernetes

AWS CLI

Job description

The Tesco Mobile Engineering team is a truly cross functional team responsible for both the functional software development as well as the running and operation of tailored and product / SaaS based IT solutions.

You will be working within a very diverse team of highly motivated and dedicated individuals on business-critical infrastructure management. Our teams are motivated and challenged, working in sprints across a range of technologies which together provide huge benefit to the wider business.

We are the Run and Operate Chapter which manages the platforms and infrastructure used by many of the business services needed in Tesco Mobile. This role is part of the DevSecOps squad and works with the Run and Operate Chapter Lead. The DevSecOps squad is responsible for the management of the infrastructure that powers all the Engineering systems and applications. The squad is also responsible for the software development tools and pipelines used across Tesco Mobile.

Squad Composition

• DevSecOps Engineers - AWS
• DevSecOps Engineers - Azure
• Kubernetes Engineers
• Platform Automation Engineers
• Product Owner
• QA Automation Engineers

As a DevSecOps Engineer you will be helping the team manage and deploy the environment in a secure and optimised manner. This will include managing the logging and SIEM aspects of the infrastructure and coordinating with application development teams to resolve issues. You will also work with the rest of the squad to incorporate more security checks into the CI/CD pipeline. The role will include validation of planned changes to ensure that they comply with best practice and will also involve working with the Tesco Mobile Cyber Security Team.

• Be a great teammate – live the Tesco Mobile values.
• Work with the Chapter Lead to agree improvements to the security of the infrastructure and applications.
• Define and refine infrastructure security standards.
• Act as the domain authority for infrastructure security.
• Work as part of the team to solve complex cross‑business technical problems.
• Creating business justifications for security improvements and present these to Product Owners and other stakeholders in an articulate manner for an audience that may not be technical.
• Share knowledge with other members of the squad.

• Significant commercial experience with security operations management.
• Significant experience with cloud providers (mainly Azure).
• Experience automating tasks using PowerShell or Azure CLI.
• Experience using Azure Security Hub and other tools to improve cloud security posture.
• Experience maintaining and updating infrastructure using Terraform.
• Willingness to learn new skills.

Nice to have

• Experience with AWS environments
• Source code systems and branching strategies; Github and Github Actions.
• Experience a commercial setting using and managing Splunk including defining data streams, indices and ingests and dashboards.
• Experience of CI/CD pipelines and adding security tooling to these.
• Experience using SAST and other techniques to improve code security.
• Automation experience using a variety of tools and languages including AWS CLI, python, etc.
• Containerisation technologies; Docker and Kubernetes.
• Exposure to Continuous Integration and Continuous Deployment techniques, approaches and tools, including experience with the GitHub and GitHub Actions.

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.