Senior Incident Responder (DFIR)

Tesco Technology; Welwyn Garden City; On-site; GBP 60,000 - 90,000; Full time

Job summary

Join Tesco Technology as a Senior Incident Responder (DFIR). In this pivotal role, you will lead investigations into security incidents, leveraging your deep technical expertise to enhance response capabilities. You’ll work closely with various teams to protect Tesco’s diverse operations and ensure a robust security posture. A unique opportunity awaits you to innovate in a role where critical thinking and technical know-how are paramount.

Benefits

Annual bonus scheme of up to 20% of base salary

Holiday starting at 25 days plus a personal day

Private medical insurance

26 weeks maternity leave at full pay

Free 24/7 virtual GP service

Qualifications

• 4+ years relevant experience in security incident response.
• Proficiency in Python or PowerShell.
• Experience with Windows, MacOS, and Unix systems.

Responsibilities

• Perform forensic analysis to understand security incidents.
• Support incident managers with root cause analysis.
• Lead intelligence-based threat hunts.

Skills

Critical Thinking

Technical Investigation

Forensic Analysis

Threat Hunting

Incident Handling

Education

Relevant Technical Degree

Tools

EDR

SOAR

SIEM

Job description

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Our Digital Forensics and Incident Response (DFIR) team
lead the technical investigation and response to security incidents at Tesco.
As part of this team, you’ll work alongside our security operations, threat
intelligence, and security engineering teams to protect, detect, and respond to
security threats across Tesco’s diverse and evolving estate.

You’ll apply your deep technical knowledge and critical
thinking ability to investigate and understand the full extent of security incidents
and threats. Your ability to distil and clearly convey technical information
will allow you to provide the key contextual information to decision makers
that enables them to make informed decisions.

As a senior position, when you’re not investigating
security incidents, you’ll have the freedom to leverage your knowledge and
real-world experience to help improve and automate the team’s technical
workflows, working alongside other teams to [RR1] [RR2] help drive innovation across our prevention,
automation, detection, and response capabilities. Your status as a senior
incident responder means you’ll serve as a role model for engineers and
analysts across Security Operations.

About the role

Our Digital Forensics and Incident Response (DFIR) team
lead the technical investigation and response to security incidents at Tesco.
As part of this team, you’ll work alongside our security operations, threat
intelligence, and security engineering teams to protect, detect, and respond to
security threats across Tesco’s diverse and evolving estate.

You’ll apply your deep technical knowledge and critical
thinking ability to investigate and understand the full extent of security incidents
and threats. Your ability to distil and clearly convey technical information
will allow you to provide the key contextual information to decision makers
that enables them to make informed decisions.

As a senior position, when you’re not investigating
security incidents, you’ll have the freedom to leverage your knowledge and
real-world experience to help improve and automate the team’s technical
workflows, working alongside other teams to [RR1] [RR2] help drive innovation across our prevention,
automation, detection, and response capabilities. Your status as a senior
incident responder means you’ll serve as a role model for engineers and
analysts across Security Operations.

You will be responsible for

• Investigation and Response:Perform host, network, and cloud-based forensic analysis to understand the full extent of security incidents and take appropriate response actions to contain, remediate, and recover.
• Incident Handling: Support cyber-security incident managers and decision makers with root cause analysis and formulating recommendations for detection and prevention controls.
• Technical Project Work: Use your technical capabilities to enhance our existing processes as well as identifying and working on new methods to deliver DFIR services to the ever-changing technology requirements of the business.
• Threat Hunting & Detection Engineering:Lead intelligence-based threat hunts to uncover anomalous behaviour in our estate that is representative of the security threats most relevant to Tesco, testing and raising potential detections to contribute to our internal detection engineering programme
  

You will need

· 4+ years of relevant experience.

· Experience with responding to security incidents
in large scale corporate on-premises and public cloud environments (preferably
Microsoft Azure).

· Experience with forensic analysis of
cyber-security incidents on Windows, MacOS, and Unix operating systems and
in-depth understanding of those operating systems.

· Experience with a broad range of security
technologies such as EDR, SOAR, and SIEM.

· Proficiency in at least one programming or
scripting language e.g. Python or PowerShell.

· Ability to think critically and lead technical
investigations.

· Ability to handle high pressure situations in a
calm, productive, and professional manner.

· Experience with static and dynamic file/malware
triage desirable.

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. Click Hereto find out more!

• 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 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


• 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’. 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.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Retail

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