Senior SOC Analyst Interview Questions UK: 8 Real Questions and What Interviewers Want

Applying for a Senior SOC Analyst job in the UK? Here is what you are likely to be asked. These questions come from our Senior SOC Analyst question bank of 15 questions, written for UK employers at senior level.

Eight Senior SOC Analyst interview questions, and what the interviewer is thinking

1. What is the difference between a Tier 1 and a Tier 2 SOC analyst, and what does a typical shift as a senior analyst involve?

Why they ask: They want to see that you understand the step up in ownership, depth and judgement expected beyond alert triage.

2. An alert has just been escalated to you from Tier 1. What do you do in the first fifteen minutes?

Why they ask: They want to hear a structured, repeatable approach to escalations rather than jumping straight to conclusions.

3. Which Windows event IDs do you rely on most when investigating a suspected compromise, and what do they tell you?

Why they ask: They are checking that you can read raw Windows telemetry rather than depending only on vendor dashboards.

4. How would you use EDR process tree data to decide whether suspicious activity is malicious or just an administrator doing something unusual?

Why they ask: They want to know whether you can interpret parent-child relationships and context rather than reacting to a vendor severity score.

5. How would you detect password spraying in your SIEM, using KQL or Splunk SPL, and how would you reduce false positives?

Why they ask: They want practical query-writing ability and an understanding of detection logic, not just theory.

6. How would you investigate suspected lateral movement within a Windows domain?

Why they ask: They want to see how you scope a breach beyond the first host, which is core Tier 2 work.

7. You review a Tier 1 closure and think an alert they marked as a false positive was actually genuine. What do you do?

Why they ask: They want to see how you correct errors in a way that protects the organisation and still develops junior staff.

8. Tell me about a time you had to decide whether an alert was a genuine incident with incomplete evidence.

Why they ask: They want to see how you handle ambiguity and risk and whether you can justify a call under pressure.

A sample answer to question 1

What is the difference between a Tier 1 and a Tier 2 SOC analyst, and what does a typical shift as a senior analyst involve?

Tier 1 triages the queue against runbooks and escalates anything unclear. Tier 2 owns the investigation. On a typical shift I start with the handover notes, check open incidents and any detection or log-source health issues, then pick up escalations in priority order. For each one I pivot across EDR, SIEM, proxy and identity logs to build a timeline, decide whether it is a true positive, scope the affected hosts and accounts, and either contain it or recommend containment to the incident manager. I also review Tier 1 closures as a quality check, tune noisy rules with the detection engineers, update playbooks after incidents, and give feedback to junior analysts. The real difference is accountability: Tier 1 follows a process, whereas I am expected to decide what the process should be when the evidence does not fit the runbook, and to explain that decision clearly to non-technical stakeholders.

Common mistake to avoid: Describing it as just 'more alerts'; ignoring mentoring and detection improvement

Want the rest?

Full model answers, key points and common mistakes for all 15 questions are on the Senior SOC Analyst interview questions page. The first five are free, no sign-up needed.