11 questions · from 3 interviews
Oracle (cerner) interview questions
Every question candidates reported from their Oracle (cerner) interviews, most frequently asked first. Each links to the write-up it came from, so you can see the round and how it went.
Oracle (cerner) coding and DSA questions
- 01
Maximize Knowledge Gained from Interviews with Capacity Constraint
A conference will be for d days. A schedule of n interviews is given with 3 arrays for start, end and knowledge gained. The interview start time and end time are in days and each day the maximum number of meetings allowed to is k. I need to maximize knowledge…
Hard · From Oracle Cerner | Software Developer 3 | Bangalore | Apr 2025
- 02
Level Order Traversal for a Non-Binary Tree
Level Order traversal for a non binary tree.
Medium · From Oracle Cerner | Software Developer 3 | Bangalore | Apr 2025
- 03
Max Consecutive Ones III
The problem can be found at the provided LeetCode link.
- 04
Capacity To Ship Packages Within D Days
The problem can be found at the provided LeetCode link.
- 05
Smallest Starting Stair for Frog Jumps
Given a list of jumps that the frog can make sequentially on stairs (could have negative value), starting at stair 1, find the smallest stair number the frog has to be on so that jumping all the jumps will still keep the frog on a positive stair number.…
- 06
Decode String and Count Characters
Given an encoded string, provide the count of each character from 'a' to 'z' (represented as 0 to 25). Examples: Input: '1234' → Output: [1,1,1,1,0,0,0....0] (for 'abcd') Input: '1(2)2(2)25' → Output: [2,2,0,0,....,1] (for 'aabbz') The '' symbol…
Oracle (cerner) system design questions
- 01
High-Level Design for Instagram-like Social Media App
I was told to draw the HLD for a social media posting app like instagram. I completed following: - Functional Requirements - Non Functional Requirements - DB Schema - DB resilient design - Services - Diagram We discussed DB choices and reasoning, design…
Hard · From Oracle Cerner | Software Developer 3 | Bangalore | Apr 2025
- 02
Design Twitter
Design a Twitter-like system. Follow-up questions included discussions on scaling, load balancing, latency of Twitter feed and search, and database schema design. Additionally, I was asked about my current role, end-to-end contributions, challenges faced, and…
- 03
Design E-commerce Application (Amazon/Flipkart)
Design an e-commerce-like application (similar to Amazon or Flipkart). In-depth discussion focused on the search feature of the application, including search optimization using Elastic Search and various authentication mechanisms.
- 04
Design Current Project's Architecture
I was asked to design the architecture of my current project. The entire interview revolved around the architecture I presented.
- 05
High-Level System Design: AI Note-Making System for Hospitals
High Level Desigh Problem (Backend role) Suppose I am going into the hospital as a patient and want to visit a doctor. The hospital makes an appointment for me. They also ask for any ongoing problems I might have like the history of me. In a 1:1 session with…
From Oracle (Cerner) | High Level Design | IC3 | Senior Software Engineer (SMTS)
Oracle (cerner) interview questions FAQ
What questions are asked in Oracle (cerner) interviews?
Candidates reported 11 distinct questions across 3 Oracle (cerner) interviews. 6 coding and DSA questions, 5 system design questions.