About the role
We are passionate about step changing our cyber security capability to better protect customers and colleagues across our global business, and we’re building an internal penetration testing function to complement and help further mature our defensive security capabilities. This new role challenges you to use your offensive skills to discover and demonstrate vulnerabilities and weaknesses in our systems. Tesco Technology has hundreds of software and infrastructure engineers deploying solutions at scale using many different technology stacks, from traditional on‑premise infrastructure to cloud‑centric containerised deployments. Working collaboratively with our developers is key to us identifying and addressing these findings, efficiently and at scale across Tesco. You will have the opportunity to help application teams remediate issues, to help infrastructure teams to build better supporting functions and to help improve our detection and response teams by proposing new detection ideas or providing your offensive security knowledge to aid in incident response.
Responsibilities
You will be responsible for delivering high‑quality security assessments in a variety of areas including web application, API, mobile, and infrastructure. You’ll work in an offensively trained and defensively focused security team, using internal knowledge, data sources and tools to identify attack vectors and test hypotheses.
* Work with security engineers to refine and develop detections.
* Participate in purple teaming exercises, carrying out wider assessments of our security posture.
* Help triage and validate findings from our bug bounty program.
* Triage and validate Tesco’s risk posture for newly released CVEs as part of vulnerability management.
Qualifications
* Penetration testing experience performing authorised tests on computer systems, exposing weaknesses in security that potentially could be exploited.
* Industry relevant certifications such as GPEN, CREST, OSCP, OSEP are helpful but not crucial.
* Understanding of operating system and networking fundamentals, and underlying principles.
* Knowledge of preventative and detective controls (EDR, firewalls, IDS, IPS, anti‑virus, etc).
* Analytical and critical thinking skills, willingness to challenge status quo.
* Good written and oral communication skills.
* Comfortable working both independently and collaboratively in a diverse team.
Benefits
* Annual bonus scheme of up to 20% of base salary.
* Holiday starting at 25 days plus a personal day (plus Bank holidays).
* Private medical insurance.
* 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, and 4 weeks fully paid paternity leave.
* 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.
About Us
Our vision at Tesco is to become every customer's favourite way to shop, whether they are at home or out on the move. Our core purpose is ‘Serving our customers, communities and planet a little better every day’. We are proud to have an inclusive culture where everyone truly feels able to be themselves. We celebrate diversity, recognise the value and opportunity it brings and are committed to creating a workplace where differences are valued and given the same opportunities. We are accredited Disability Confident Leader and provide a fully inclusive and accessible recruitment process.
Seniority level
Entry level
Employment type
Full‑time
Job function
Information Technology
Industries
Retail
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