As a Security Analyst III, you will be thetechnical authority within the SOC, leading high-quality investigations andproactive threat hunting to protect the organisation from evolving threats. Thishands-on role combines advanced technical expertise with leadership, coachinganalysts, driving SOC maturity, and optimising tools and processes to set thestandard for excellence across the team.
You will act as a role model for SOCAnalysts, coaching and guiding them to elevate technical capability andanalytical rigour. Beyond day-to-day operations, you will lead maturityobjectives, optimise SOC tooling, and identify opportunities for automation, AIintegration, and impactful service improvements. You will also play a key rolewithin the CSIRT team, collaborating on major incidents.
About the role
As a Security Analyst III, you will be thetechnical authority within the SOC, leading high-quality investigations andproactive threat hunting to protect the organisation from evolving threats. Thishands-on role combines advanced technical expertise with leadership, coachinganalysts, driving SOC maturity, and optimising tools and processes to set thestandard for excellence across the team.
You will act as a role model for SOCAnalysts, coaching and guiding them to elevate technical capability andanalytical rigour. Beyond day-to-day operations, you will lead maturityobjectives, optimise SOC tooling, and identify opportunities for automation, AIintegration, and impactful service improvements. You will also play a key rolewithin the CSIRT team, collaborating on major incidents.
You will be responsible for
- Deliver high-quality investigative analysisto ensure rapid and accurate incident resolution.
- Act as the escalation point and technicalauthority for complex SOC investigations.
- Lead proactive threat-hunting initiatives toidentify and mitigate emerging threats before they impact the business.
- Role-model analytical excellence anddecision-making, setting the benchmark for SOC performance.
- Coach and mentor analysts to build technicaldepth and confidence across the team.
- Drive SOC maturity objectives, improvingprocesses, tooling, and automation for greater efficiency.
- Enhance SOC tool utilisation, includingworkflow optimisation.
- Identify and implement automation, AI-drivenenhancements, and playbook developments.
- Support CSIRT activities during majorincidents, ensuring coordinated and effective response.
- Monitor MSSP performance, ensuring alerttriage and investigations meet quality and timeliness standards.
You will need
- Over 2 years’ experience working in aninternal SOC or 3 years at an MSSP in a senior role.
- Deep knowledge of cybersecurity frameworks:MITRE ATT&CK, Cyber Kill Chain, Incident Response Lifecycle, Pyramid ofPain.
- Expertise in threat hunting and advanced investigativeanalysis.
- Deep understanding of attacker tactics,techniques, and procedures (TTPs) and threat actor behaviours.
- Proficiency in SIEM/XDR platforms and tuningdetection logic, use cases, and alert optimisation.
- Advanced querying and scripting skills (e.g.,KQL, SPL) for data analysis and threat detection.
- Ability to recommend tooling enhancements andprocess improvements to strengthen SOC capability.
- Practical knowledge of networks, operatingsystems, and scripting for investigative purposes.
- Experience in leading technical initiativesand driving service maturity improvements.
- Demonstrated ability to coach and developteam members, fostering technical excellence.
Desirable
- GIAC certifications
- Other relevant certifications such as CISSPor CISM will be considered.
- A relevant degree, with professionalexperience.
Whats in it for you?
We’re all about the little helps. That’s why we make sure our Tesco colleague benefits package takes care of you – both in and out of work.
- Annualbonus scheme of up to 20% of base salary
- Holidaystarting at 25 days plus a personal day (plus Bank holidays)
- Privatemedical insurance
- 26weeks maternity and adoption leave (12 months service required atthequalifyingdate) at full pay, followed by 13 weeks ofStatutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeksfully paid paternity leave
- Free24/7 virtual GP service, Employee Assistance Programme (EAP) for you andyour family, free access to a range of experts to support your mentalwellbeing
The above information is a shortened summary, referto our policies for full detail
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’. Serving means more than a transactional relationship with our customers. It means acting as a responsible and sustainable business for all stakeholders, for the communities we are part of and for the planet.
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.
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