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Oracle interview questions

From 26 candidate accounts, updated Oct 12, 2026

Candidate accounts
26
Rounds on average
3.9
Fewest and most rounds
1 to 6
Open roles at Oracle
5,060

How the loop works

Oracle runs a decentralised loop: each business unit (OCI, Server Technology, NetSuite, Oracle Financial Services, CGBU, Application Labs) hires on its own rhythm, so round counts range from a single panel conversation to a ten-hour on-campus marathon or a six-round US onsite. Almost every path opens with a timed online assessment that mixes one or two DSA problems with aptitude, verbal and CS-fundamentals MCQs, and distinctively for Oracle, a REST-API call question and at least one SQL query. Interviews then alternate coding with heavy database and OS theory, project and resume grilling, classic logic puzzles, and a closing managerial or HR conversation. Senior and OCI roles add high-level design plus behavioural questions anchored to Oracle's stated principles.

These 26 writeups cover software engineering, cloud infrastructure, database and other roles, India-heavy, some US (OCI Seattle). 23 of them were posted under a forum handle, so we could not verify the authors’ identities.

See open roles at OracleOracle salaries

Interview experiences at Oracle

Application Developer

Not selected

New grad. 4 rounds. Shared by GeeksforGeeks contributor (handle not shown) on gfg, 2023-09-04

  1. 1Online assessmentOnline assessmentA HackerRank test combining aptitude questions, two easy algorithm problems and one question requiring a REST API call.Covered: Aptitude, Arrays & strings, API design
  2. 2Technical interviewTechnicalStarted with a casual introduction, then drilled into inheritance and access modes, the diamond problem and why Java avoids multiple inheritance, plus a rope-and-load style logic puzzle.Covered: OOP, Puzzles
  3. 3Technical interviewTechnicalA long project-driven round covering REST APIs, IP protocols and the OSI model, normalisation and join types, and virtual memory, ending on software development lifecycle questions tied to the interviewer's DevSecOps team.Covered: Past projects, API design, Networking, DBMS, Operating systems
  4. 4Director roundHiring managerTaken by a company vice president: a probability puzzle, a graph-traversal question about detecting a loop, pseudocode for depth-first and breadth-first search, and when denormalisation is preferable to normalisation.Covered: Puzzles, Graphs, DBMS

Software Engineer, Oracle Cloud Infrastructure (IC3)

Outcome not shared

Experienced. 5 rounds. Shared by GeeksforGeeks contributor (handle not shown) on gfg, 2024-09-26

  1. 1ScreeningPhone screenA long theory screen anchored on the candidate's project: joins and indexing, authentication versus authorization, Kafka usage, branching and release workflow, then a deep sweep of Java threading, collections, exception hierarchy, static semantics and design patterns.Covered: Past projects, SQL, DBMS, Concurrency, OOP, Testing
  2. 2TechnicalTechnicalTwo classic coding problems (building a balanced BST from a sorted array, spiral matrix traversal) followed by REST verbs and idempotence, JVM/JDK/JRE distinctions and recursion questions.Covered: Trees, Arrays & strings, API design, OOP
  3. 3TechnicalTechnicalA stack-based parentheses problem, then an architecture discussion about message-broker choice, container and Kubernetes tooling in the deployment pipeline, autoscaling thresholds and when to prefer asynchronous over synchronous processing.Covered: Arrays & strings, Scalability, Concurrency, Past projects
  4. 4Hiring managerHiring managerMixed behavioural and problem solving: hardest problem solved, a mistake made at work, the burning-rope timing puzzle and a simulation problem counting the minimum chairs needed from an arrival/departure string.Covered: Puzzles, Arrays & strings, Behavioral
  5. 5Design and processSystem designHigh-level design of the candidate's current application, defining REST contracts for a CRUD employee resource, plus how production bugs and deployments are handled on their team.Covered: System design, API design, Behavioral

What Oracle is hiring for now

5,060 open roles in our index. Advertised pay floors run $84k to $117k (median $102k, from 2000 postings that state pay).

Most-posted roles

  • Senior Platform Software Engineer174
  • Senior Core Infrastructure Engineer113
  • Principal Core Infrastructure Engineer90
  • Principal Platform Software Engineer80
  • Lead Principal Platform Software Engineer39
  • Principal Software Engineer, Core Infrastructure39

Top locations

  • Nashville1163
  • Bengaluru355
  • Seattle191
  • Abilene147
  • Santa Clara115

Open roles at Oracle

See all 5,060 roles

Oracle interviews: FAQ

What is the interview process like at Oracle?
Oracle runs a decentralised loop: each business unit (OCI, Server Technology, NetSuite, Oracle Financial Services, CGBU, Application Labs) hires on its own rhythm, so round counts range from a single panel conversation to a ten-hour on-campus marathon or a six-round US onsite. Almost every path opens with a timed online assessment that mixes one or two DSA problems with aptitude, verbal and CS-fundamentals MCQs, and distinctively for Oracle, a REST-API call question and at least one SQL query. Interviews then alternate coding with heavy database and OS theory, project and resume grilling, classic logic puzzles, and a closing managerial or HR conversation. Senior and OCI roles add high-level design plus behavioural questions anchored to Oracle's stated principles.
What topics does Oracle test in interviews?
Commonly reported topics include Data structures & algorithms, Arrays & strings, Trees, Dynamic programming, SQL, DBMS.

These guides summarize public, first-hand interview experiences shared by candidates. They describe the shape of each loop and the topics that came up, not a leaked question bank, and every experience links back to its original source. Processes change often. Treat this as directional prep, not a script.