Deloitte · OA → Phone screen → Onsite
In process2019–2026 Deloitte New Grad Tech OA / Interviews: 16 Experiences
A practical roundup of 16 firsthand Deloitte new-grad and entry-level tech interview reports from 2019 through 2026.
Coverage: Deloitte new-grad and entry-level software, analyst, solution developer, Omnia / Applied AI, and Digital / AI / Algorithm Risk roles in the United States, Canada, India, and Europe (2019–2026). HashedIn by Deloitte is excluded because its SDE pipeline differs.
Dedicated to a fren~ but the fren already aced the assessment before i could finish it up LOL, which is awesome!! 🎉
Still sharing this anyway. Hope it can help more frenz out there 🤝
The short version
Deloitte does not have one universal new-grad SDE process—the role, practice, office, and recruiting channel can change the interview almost completely.
- Read the exact job title, not only the Deloitte logo. Software-engineering tracks may use timed coding; analyst and AI tracks may emphasize projects, SQL, cases, presentations, or recorded video.
- The OA format varies sharply. Formats ranged from three timed coding problems to mixed MCQs, HireVue, personality inventories, and SHL reasoning.
- Most reported coding is foundational, but a clean solution still matters. Arrays, strings, hashing, sorting, and basic dynamic programming appeared repeatedly. A few candidates also saw trees, matrix problems, and optimization follow-ups.
- SQL and object-oriented fundamentals are unusually high-yield. Joins, relational keys, normalization, OOP principles, and language fundamentals showed up across several offices and role families.
- Your resume can become the interview syllabus. Expect questions about stack choice, architecture, ownership, tradeoffs, and scaling.
- Communication is part of the technical bar. Several reports mixed coding with client scenarios, ambiguity, project explanation, and behavioral follow-ups.
- Treat older reports as pattern evidence, not a process guarantee. The strongest current signals here come from 2024–2026.
A practical preparation formula: arrays and strings + SQL and OOP + one deeply rehearsed project + six adaptable STAR stories + role-specific case or data practice.
Reported OA and coding question bank
These are candidate-reported tasks; wording and constraints varied.
Coding tasks
The timelines below show the source round. Links appear only for close FastPrep matches.
- Parameterized divisibility labels
- Sorted character frequencies
- Top N longest sentences
- Pair elements with even sums
- Minimum deletions for a non-palindrome
- Minimum-cost solar rooftops
- All pairs with a target sum
- Largest array element
- Maximum-sum rectangle
- Install Carbon Filters
- Longest Substring with Even Occurrences
- Two Sum
- House Robber
- Left-rotate an array by
k. - Return the left view of a binary tree.
- Simple regex and string matching.
- Select the longest string.
SQL, OOP, and core CS
- Explain inner, left, and right joins; write simple MySQL with filters, aggregates, and joins.
- Review primary and foreign keys, normalization, and relational design.
- Compare OOP with functional programming and explain the four OOP principles.
- Discuss Python multithreading and any language-specific fundamentals named on the resume.
- Improve an earlier OA solution and defend its complexity.
- Explain a project's architecture, stack choices, personal contribution, tradeoffs, and failure modes.
HireVue and behavioral questions
- Introduce yourself; why Deloitte and this role?
- What excites you about technology, and what is not on your resume?
- Describe a mistake, difficult feedback, or a missed deadline.
- How do you handle pressure, competing priorities, and multiple tasks?
- Walk through your hardest data or software project.
- Describe teamwork, leadership, conflict, communication, and learning with clear personal ownership.
- For AI roles: how can AI strengthen Deloitte's work?
Cases, presentations, and consulting-style prompts
- Improve emergency-room patient intake through process, hardware, and software changes.
- Explain a project and its business value to a non-technical stakeholder.
- Build a real-estate price model, present the findings, and defend the model in Q&A.
- Defend regression, classification, random forest, PCA, transformations, and assumptions.
- Plan training for client teams adopting a new data tool.
16 Deloitte New Grad Tech Interview Experiences
01. United States: a software-engineering title with a scenario-first interview
Report date: April 12, 2026 · Role: Software Engineering Solutions Analyst · Location: United States · Result: Offer
The candidate had graduated with a computer science degree in 2025 and reported having no internships before receiving the offer.
- Across two interviews, there were no conventional LeetCode questions or language-syntax drills.
- The main technical scenario was how to improve emergency-room patient intake using options such as self check-in hardware, software for organizing patients, and a prioritization process.
- The discussion rewarded structured problem solving and the ability to connect technology to an operational outcome.
02. Canada: HireVue followed by a surprisingly technical final
Report date: March 25, 2026 · Role: Enterprise Operate New Grad · Location: Canada · Status: Waiting when posted
- The candidate first completed a HireVue stage.
- The final interview had been described as behavioral, but the panel explained that it was looking for IT analysts and asked about programming languages, coding exposure, and technical projects.
- The candidate felt the role and interview expectations were not aligned with the broad job posting. The panel mentioned possible recommendations to other departments.
03. India: two-question OA, then two technical rounds
Interview dates: March 25–31, 2025 · Role: Software Engineer, Fresher · Location: India · Result: Rejected
Online assessment — 60 minutes
- DSA multiple-choice questions.
- Two Sum, with a lexicographically smallest valid pair of indices.
- Left rotation of an array by
k; the candidate used the reversal method.
Technical interview 1 — 60 minutes
- An age puzzle.
- Left View of a Binary Tree, solved with BFS.
Technical interview 2 — 60 minutes
- House Robber, solved with dynamic programming.
- Python questions, including multithreading, plus detailed project discussion.
04. Greece: three Codility problems before the recruiter conversation
Interview period: August 2025 · Role: Junior Software Engineer · Location: Greece · Result: No offer
- The first stage was a Codility assessment with three medium-difficulty problems in 70 minutes.
- A recruiter interview followed on a later date.
- Questions covered academic background, university work, and programming knowledge.
05. On-campus FTE: three concrete Codility problems in 90 minutes
Interview cycle: 2024 · Role: Entry-level FTE tech role · Location: Not disclosed · Result: Not disclosed
The coding test used Codility and contained three questions:
- Pair Elements with Even Sums: decide whether every element can be paired so each pair has an even sum.
- Minimum Deletions for a Non-Palindrome: find the fewest deletions needed to make the string non-palindromic.
- Minimum-Cost Solar Rooftops: meet the colony's energy target using two installation costs as cheaply as possible.
06. Campus Codility: two exact string tasks preserved
Report date: October 21, 2023 · Role: General Tech, New Grad · Level: Undergraduate · Location: Not disclosed · Result: Passed
The candidate's screenshots preserve two of the Codility tasks:
- Install Carbon Filters: replace every
?withaorbso the result contains neitheraaanorbbb;Ncould reach 500,000. - Longest Substring with Even Occurrences: return the longest contiguous substring in which every letter appears an even number of times;
Ncould reach 100,000. - Task 1 was not preserved in the accessible screenshots, so it is not reconstructed here.
07. Digital / AI / Algorithm Risk: SHL reasoning, personality, and video answers
Report date: August 13, 2023 · Hiring cycle: 2024 · Role: Digital / AI / Algorithm Risk Analyst · Location: Not disclosed
- Reasoning assessment — 46 minutes. Numerical calculations, pattern recognition, chart manipulation, and scheduling tasks. The candidate completed only about half because of the time pressure.
- Personality inventory — 20 minutes. Repeated forced-choice statements about work style and preferences.
- Recorded video — 10 minutes. Each question allowed about 15 seconds to prepare and 45 seconds to answer. The two reported prompts were a mistake story and a stressful-situation story.
08. Software Engineering Analyst: OA review plus live Codility
Report date: November 7, 2023 · Role: Software Engineering Analyst · Location: Not disclosed
- The first round began with projects from the resume.
- The interviewer moved to conceptual questions such as the different SQL joins.
- One OA problem was revisited, and the candidate was asked how the solution could be improved.
- The candidate then opened Codility and solved a live medium-difficulty coding problem while reading the prompt aloud, clarifying constraints, and explaining the approach.
09. New York: coding, case review, and fit
Report date: January 1, 2023 · Role: Software Engineer, New Grad · Location: New York, United States · Result: No offer
- The process was described as coding, case review, and fit.
- The LeetCode-easy-level coding task was Minimum Deletions for a Non-Palindrome.
- The candidate received positive feedback on the coding and case portions but did not progress to the fit round.
10. Applied AI Analyst: technical screen, take-home model, presentation, and MD chat
Report date: November 29, 2022 · Role: Applied AI Analyst, New Grad · Location: Not disclosed · Result: Offer
First interview
- A 25-minute technical discussion followed by 25 minutes of behavioral questions.
- Technical questions included right join versus left join and targeted follow-ups on projects and internships.
- Behavioral questions focused on teamwork, leadership, and communication.
Take-home and second interview
- The take-home used real-estate training and test CSV files with thousands of rows and 81 columns, including the target price.
- Deliverables included EDA and visualizations, a price-prediction model, interpretation of important variables, recommendations, a slide deck, and the analysis notebook or R file.
- Deloitte suggested budgeting six to eight hours and allowed four days.
- The next interview began with a 20-minute presentation and moved into Q&A about data cleaning, log transformations, regression versus random forest or classification, PCA, assumptions, and future model improvements.
Final interview
- A 15–20 minute conversation with an MD or partner.
- Questions focused on intellectual curiosity, entrepreneurship, communication, and how to train teams on a new data tool.
- The candidate received an offer call a little over a week later.
11. Canada Omnia AI: HireVue, simple coding and MySQL, then an offer
Report date: February 22, 2022 · Role: Technical Solution Analyst / Developer, Canadian Delivery Center, New Grad 2022 · Location: Canada · Result: Offer
- The candidate attended a Deloitte networking event during the holiday period and applied in January.
- A January 28 HireVue assessment mixed behavioral questions with three simple coding tasks involving regex and strings.
- A February 11 one-hour video interview included another straightforward coding task and MySQL questions.
- The candidate received a verbal offer on February 14.
12. Data Science OA: seven recorded prompts, then four coding tasks
Report date: May 9, 2021 · Role: Data Science · Level: Undergraduate · Location: Not disclosed
- The assessment opened with seven recorded questions. Preserved prompts included why Deloitte, the candidate's last work experience, an open invitation to add anything else, and work authorization.
- It then moved to four coding tasks. Three preserved prompts were All Pairs with a Target Sum, Largest Element in an Array, and Maximum-Sum Rectangle. The fourth was not preserved clearly enough to reconstruct.
- Supported languages were C, C++, Java, Python 2, and Python 3.
13. Canadian Delivery Center Solution Developer: eight HireVue prompts
Report date: October 5, 2020 · Role: CDC Solution Developer, New Graduate 2021 · Location: Canada · Result: Waitlist
The asynchronous HireVue contained eight behavioral prompts, with roughly two minutes available per response:
- Introduce yourself.
- Why did you apply for this role?
- What are you passionate about in technology?
- How do you deal with a mistake?
- Describe feedback from a manager.
- How do you handle multiple tasks?
- Have you missed a deadline?
- A second deadline-related scenario.
14. Omnia AI Data Engineer: five-question HireVue
Report date: October 24, 2019 · Role: Omnia AI Data Engineer, New Graduate 2020 · Location: Not disclosed · Result: Rejected
The candidate reported five recorded questions:
- Introduce yourself.
- Why Deloitte?
- Describe your most challenging data project and how you solved it.
- How can artificial intelligence strengthen Deloitte's work?
- Tell us something that is not on your resume.
15. Canada: basic OA, a short technical screen, and a director conversation
Report date: February 27, 2019 · Role: Entry-level technology role · Location: Canada · Result: Passed
- The OA was described as very basic; the hardest task was finding a longest string. The reviewer later commented positively on the candidate's use of a lambda expression.
- The next stage could be conducted by Skype and included about 15 minutes of behavioral questions plus 15 minutes of technical questions.
- Technical topics included OOP, inner joins, and a basic comparison of supervised and unsupervised learning.
- A later 30-minute conversation with a director focused heavily on the director's experience building the group, qualities valued by the team, the candidate's co-op work, and the questions the candidate asked.
16. Developer OA: three deliberately basic implementation tasks
Report date: February 12, 2019 · Role: Developer, New Grad · Location: Not disclosed · Result: Not disclosed
The test contained three questions in one hour, weighted 15, 20, and 25 points:
- Parameterized Divisibility Labels: print
AB,A, orBusing two divisors. - Sorted Character Frequencies: count a word's characters and print them alphabetically.
- Top N Longest Sentences: return the first
Nlongest sentences from a list.
What repeated often enough to prioritize
Tier 1: Practice until automatic
- Arrays, strings, hash maps, sorting, and one-dimensional dynamic programming.
- SQL joins, keys, normalization, and a few clean queries without autocomplete.
- A two-minute explanation of one project from problem to architecture, personal contribution, tradeoffs, and result.
- Writing edge cases before submitting, especially when hidden test feedback is limited.
Tier 2: Be ready to explain deeply
- Why an approach is correct, its time and space complexity, and how to improve it.
- OOP and language fundamentals that appear anywhere on the resume.
- How a technical choice affects a client, user, team, cost, or delivery timeline.
- Six flexible STAR stories covering mistake, conflict, feedback, leadership, pressure, and competing priorities.
Tier 3: Role-specific differentiators
- For Applied AI or data roles: EDA, model selection, assumptions, evaluation, visual explanation, and defensible recommendations.
- For consulting-heavy analyst roles: cases, stakeholder communication, requirements gathering, and ambiguity.
- For pure software-engineering roles: live coding narration, trees, matrix problems, and medium-level optimization follow-ups.
Final checklist
OA and coding
☐ Solve all 13 linked practice tasks once without hints.
☐ Run a 60-minute mock with three short problems and a 90-minute mock with three medium problems.
☐ Test empty, one-element, duplicate-heavy, negative-only, and large inputs.
☐ Practice explaining complexity and one better alternative after every solution.
SQL and core CS
☐ Write inner, left, and right joins from memory.
☐ Review primary and foreign keys, normalization, indexing, and common query patterns.
☐ Prepare concise examples for the four OOP principles.
☐ Revisit every language or framework named on the resume.
Projects and live interviews
☐ Prepare a five-minute project walkthrough and a 60-second non-technical version.
☐ Be ready to defend the stack, describe a failure, and propose one scaling improvement.
☐ Practice reading a prompt aloud, clarifying constraints, and narrating while coding.
HireVue and behavioral
☐ Record answers for “Why Deloitte?”, mistake, feedback, conflict, pressure, and missed deadline.
☐ Keep each answer specific about personal ownership and measurable outcome.
☐ Prepare one strong question about the actual team, client work, and expected technical depth.
AI, data, and case tracks
☐ Practice turning a messy dataset into a short recommendation deck.
☐ Review when to use regression, classification, tree-based models, and dimensionality reduction.
☐ Explain one technical decision in business language without hiding behind jargon.
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