Bloomberg OA Questions 2020: What Candidates Actually Saw
Last updated: May 2026
14+ Bloomberg online assessment questions reported by candidates who took the OA in 2020. Sourced from 1Point3Acres, LeetCode, Blind, Glassdoor, and Reddit. Data grows as new reports are added.
Bloomberg OA Format in 2020
The Bloomberg online assessment has followed a consistent format across multiple hiring cycles. Based on 2020 reports in the database, candidates typically see 2 to 3 algorithmic coding problems delivered through a proctored online platform (most commonly HackerRank). Some roles include additional behavioral or work-simulation components after the coding section.
Time limits reported by candidates range from 70 to 110 minutes for the full assessment. The coding problems are auto-graded, so edge case handling and runtime efficiency both matter. Partial credit is available on some platforms if your solution passes a subset of test cases.
Real Bloomberg OA Questions from 2020
Bloomberg | Phone | Design Underground System
Position: New Grad 2021 Platform: Hackerrank Experience: Interviewer called 10 minutes early. After introductions, detailed the structure of interview - Resume walk, Hackerrank question, questions to the interviewer. Not so keen on seeing...
Bloomberg | video interview | SWE internship (London) [reject]
Hello, so I just had my Bloomberg interview few days ago. The 1st round: Phone Call It was pretty easy got asked 2 questions, one similar to LRU cache 2nd one similiar to...
Bloomberg-Palantir | Software Engineering Internship Interview Experience [Offer]
Hello everyone, I would like to share my interview experiences throughout this year and give back to the community. About me: Currently doing my combined B.Sc-M.Sc. I am currently in my senior year...
2020 London Internship Search | Cisco | Bloomberg | Bank | 2 Hedge Funds | Amex
Background: 3rd year at London University - Electrical Engineering. Had 0 algo knowledge June 2019 - learnt most of it online first using runestone pythonds algo online course - also helenski...
Bloomberg | SWE Summer Internship | London | 2021
Hello everyone, I am sharing my rounds experience with Bloomberg for "Software Engineer - 2021 Summer Internship - London". I think the same goes for entry-level or new grad positions. The...
Bloomberg | Phone | Number of ways to purchase oil
I have applied for Bloomberg Software Engineer Grad position and asked me to schedule interview in a week. There was one question and hackerrank coderpad (I was expecting a proper hackerrank...
Bloomberg | Phone | Palindrome
Position: SWE 2020 new grad Date: April 2020 Result: got invited for virutal onsite somehow lol Phone screening started great, few conversations about our day and cracked a few jokes about being...
Bloomberg | Sr. Software Engineer | NYC | Apr 2020 [Reject]
Phone interview 1: https://leetcode.com/problems/design-underground-system/ While preparing, I thought it was design question and didn\'t expect in phone screening and didn\'t solve :) I was discussing with interviewer and implemented using two...
Bloomberg New Grad 2021| Phone Screen | Delete Node from BST
Applied through careers portal on Bloomberg website around end of August. Got an email from the recruiter on the day of my University\'s career fair after about 15-20 days. Scheduled...
Bloomberg | Software Engineer | Pune | July 2020 [Reject]
Overview YOE: 2 (but from an electronics company). Applied for the software engineer position (via the career page) based on a lead in our alumni facebook group (Tier 1 Indian University). Was...
Bloomberg | SSE | Virtual Onsite | July 2020
I was expecting 2 Hackerrank codepair style interviews. 1 system design and 1 hr interview if I got there. First round I solved 2 questions. After which interviewer presented with a...
Bloomberg Experienced Android Engineer Phone interview - Reject
I applied through Linkedin for the above role and after the initial HR chat they arranged for a 1 hour technical phone interview. First 15 minutes we talked about my...
Bloomberg | Phone | Vertical Order Traversal
Position: Software Engineer - Entry Level Date: Feb 2020 I received an email from the recruiter asking me to select a date for a phone interview. On the day of the interview,...
Bloomberg | Phone | First Unique Number in Data Stream
Position: Software Engineering Internship Just had my phone interview for a software internship position at Bloomberg. The interviewer was really nice. He started with introducing himself. He then asked me about...
Topic Breakdown (2020 OA)
Topics reported by candidates who took the Bloomberg OA in 2020:
Difficulty Breakdown (2020 OA)
4
easy
2
hard
Difficulty labels are reported by candidates or inferred from LeetCode ratings.
How to Prepare for the Bloomberg OA
The Bloomberg OA is a timed, auto-graded coding test. Preparation is different from interview prep: you need to optimize for both correctness and speed, since partial credit requires passing test cases, not just showing reasoning.
- Practice timed sessions. Set a timer for 35 to 45 minutes per problem and simulate the real constraint.
- Focus on the topic clusters that appear most in Bloomberg OA reports: dynamic programming, graphs, arrays, and strings make up the majority of reported problems.
- Read the problem constraints carefully before writing code. The constraints often reveal the expected time complexity and algorithm type.
- Use the LeakCode database to review 2020 OA questions from actual candidates. Pattern recognition across multiple sightings is a stronger prep signal than any single mock problem.
- If the OA includes a work simulation section, practice under realistic conditions. This section tests judgment and values alignment, not coding ability.
FAQ
What does the Bloomberg OA look like in 2020?
Based on 2020 candidate reports, the Bloomberg OA typically includes 2 to 3 coding problems and runs 70 to 110 minutes. Topics lean toward dynamic programming, graphs, arrays, and strings. Some roles include a work simulation section after the coding component.
How long is the Bloomberg OA?
Most candidates report 70 to 90 minutes for the coding component. Roles with additional work simulation sections extend the total time to 110 to 150 minutes. Check your invitation email for the exact time allocation for your specific role.
What platform does Bloomberg use for the OA?
Bloomberg uses HackerRank or its own proprietary platform depending on the role and hiring cycle. Your invitation will specify the platform. Both platforms support multiple languages including Python, Java, C++, and JavaScript.
Are these real Bloomberg OA questions?
Yes. All questions in the LeakCode database come from candidate reports on 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. They are not AI-generated. Each question links to its source where available.
Other Bloomberg OA Years
Related: Bloomberg OA Hub · Bloomberg All Questions · All OA Questions · Data Sources