What is the Deloitte UK SDET interview process?

Most Deloitte UK SDET candidates report Recruiter, Technical, Behavioral, HR Panel, including screening, technical depth, and behavioral panels. Timelines often run 3–6 weeks from first contact to offer.

What salary can I expect for SDET at Deloitte UK?

Compensation for SDET at Deloitte UK varies by level and Bangalore — verify with your level and notice period.

How should I prepare for Deloitte UK SDET interviews?

Review real reported questions, map your projects to measurable outcomes, run timed mocks, and practice concise trade-off explanations under panel pressure.

Deloitte UK Interview Questions (2026) – Real Questions, Process & Answers

Deloitte UK top interview questions

Tell me about a production bug you owned end-to-end
Detection, triage, root cause, fix, prevention.
Implement rate limiting for a public API
Token bucket vs sliding window; Redis; 429 handling; per-tenant keys.
How do you prioritize when three teams need your fix?
Impact, urgency, risk, communicate trade-offs.
Design a stable Playwright suite for flaky CI
Young/old gen, G1/ZGC trade-offs, metaspace, and one incident you debugged.
Find the longest substring without repeating characters
Hash map of last index; O(n) time, O(k) space.

Deloitte UK interview process

Online assessment: Aptitude + coding basics
Technical: DSA, OOP, debugging
System design: Architecture & trade-offs
HR / Behavioral: STAR, culture fit

Quick answers

Common search queries — updated 2026.

Recently asked Deloitte UK questions (2025–2026)

Tell me about a production bug you owned end-to-end — behavioral — medium
Implement rate limiting for a public API — technical — medium
How do you prioritize when three teams need your fix? — behavioral — medium
Design a stable Playwright suite for flaky CI — technical — medium
Find the longest substring without repeating characters — technical — medium

Frequently asked questions

What is the Deloitte UK SDET interview process?: Most Deloitte UK SDET candidates report Recruiter, Technical, Behavioral, HR Panel, including screening, technical depth, and behavioral panels. Timelines often run 3–6 weeks from first contact to offer.
How difficult is the Deloitte UK SDET interview?: Difficulty is Medium. Prepared candidates who practice real questions and mock loops significantly outperform those relying on generic prep alone.
What salary can I expect for SDET at Deloitte UK?: Compensation for SDET at Deloitte UK varies by level and Bangalore — verify with your level and notice period.
What interview rounds does Deloitte UK use for SDET?: Typical loops include online assessment or recruiter screen, technical/coding or case rounds, system or domain depth, and a final behavioral or hiring-manager panel. Formats vary by Bangalore.
What questions are asked in Deloitte UK SDET interviews?: Recent candidates report role-specific technical questions, system design or case prompts, and behavioral STAR questions tied to ownership, conflict, and impact.
How should I prepare for Deloitte UK SDET interviews?: Review real reported questions, map your projects to measurable outcomes, run timed mocks, and practice concise trade-off explanations under panel pressure.
Does Deloitte UK ask Java?: Candidates frequently report Java (~72% of shared experiences). Candidates frequently report Java in recent interviews.
How important is System Design for SDET at Deloitte UK?: Often cited around 58% of loops — difficulty typically hard.

Deloitte UK

SDET Interview Questions

260 Candidate ReportsUpdated June 20264.3 Prep Rating

49%

Asked core stack

60%

Saw follow-ups

Interview rounds

Question 1 of 4Technical Round 1Medium

Explain core stack fundamentals with a production example

47% of candidates saw this question.

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Deloitte UK SDET — People Also Ask

Common interview prep questions from recent candidates

What questions are asked in Deloitte UK SDET interviews?

Recent candidates report role-specific technical questions, system design prompts, and behavioral STAR questions tied to ownership and impact.

How difficult is the Deloitte UK SDET interview?

Competitive — panels test depth in role fundamentals, system thinking, and communication under follow-up pressure.

What interview rounds does Deloitte UK use for SDET?

Typical loops: Recruiter → Technical → Behavioral → HR Panel. Timelines often run 3–6 weeks.

Is Spring Boot asked in Deloitte UK SDET interviews?

When the role involves Java or backend services, Spring Boot and API design often appear in technical rounds.

Does Deloitte UK ask system design in SDET interviews?

Mid-senior SDET loops frequently include system design or architecture discussions — especially for distributed systems and scale.

Related roles at Deloitte UK

Explore interview prep for adjacent hiring tracks

Software Engineer Java Developer Data Engineer DevOps Engineer

Related skills to practice

Topics frequently tested alongside SDET loops

Java Backend Kafka System Design Spring Boot

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Deloitte UK SDET · speak or type your answer · free to try

Deloitte UK SDET — People Also Ask

Common interview prep questions from recent candidates

What questions are asked in Deloitte UK SDET interviews?

Recent candidates report role-specific technical questions, system design prompts, and behavioral STAR questions tied to ownership and impact.

How difficult is the Deloitte UK SDET interview?

Competitive — panels test depth in role fundamentals, system thinking, and communication under follow-up pressure.

What interview rounds does Deloitte UK use for SDET?

Typical loops: Recruiter → Technical → Behavioral → HR Panel. Timelines often run 3–6 weeks.

Is Spring Boot asked in Deloitte UK SDET interviews?

When the role involves Java or backend services, Spring Boot and API design often appear in technical rounds.

Does Deloitte UK ask system design in SDET interviews?

Mid-senior SDET loops frequently include system design or architecture discussions — especially for distributed systems and scale.