CGI's Interview Process (2026)
Blog / CGI's Interview Process (2026)

The CGI software engineer interview process typically follows a structured multi-stage path, though the exact rounds can vary depending on your seniority, region, and the specific team you're interviewing with.Once you know the stages, the next step is breaking your preparation into focused topic areas. Here's where most candidates should concentrate their time:1. Data Structures & Algorithms (DSA)CGI's coding questions lean toward practical problem-solving rather than algorithmic extremes. Most candidates report problems in the easy to medium range, covering string manipulation, array operations, and classic data structure questions.Expect questions like extracting non-duplicate characters from a string, which maps closely to problems like First Unique Character in a String. Array sorting is also a regular topic, so it's worth practicing Sort an Array as a warm-up.Stack and queue concepts come up often, typically framed with real-world analogies like undo operations in a text editor. Brushing up on our collection of stacks questions and sorting algorithms will cover the most likely ground.For a structured way to cover the most commonly tested problems, work through our top 100 DSA questions and prioritise the string and array categories first.2. Core Java & CS FundamentalsCGI's technical rounds have a strong focus on Java internals, particularly for backend roles. You should be comfortable explaining memory management, how garbage collection works, and the practical differences between Java 8+ Streams and traditional loops.Multithreading and serialization come up regularly, and interviewers expect you to go beyond definitions. If you mention a concept in your answer, be ready to explain when you would or wouldn't use it in a real project.Spring Boot is frequently on the table for experienced candidates. Auto-configuration, dependency injection, Actuators, and API security are all reported topics, especially if Spring Boot appears anywhere on your CV.3. SQL & DatabasesSQL is tested in both the online assessment and sometimes the technical interview rounds. The focus is on practical query writing rather than theory, so practice writing joins, updates, and deletes from scratch.Inner, left, and right joins are the most commonly mentioned topics, along with the distinction between primary and foreign keys. Candidates have also reported questions on SCD Type 2, which is used to track historical changes in dimension tables, similar to the Historical Address Tracking problem.For a solid foundation, review SQL theory and make sure you can write queries to handle real scenarios like finding duplicates or ranking salaries, as seen in problems like Find Duplicate Records and Nth Highest Salary.4. System DesignSystem design questions at CGI tend to be practical and scoped rather than open-ended architecture marathons. A common example reported by candidates is designing a URL shortening service, which tests your ability to think about core components, trade-offs, and scalability at a reasonable level.You may also be asked to discuss real-world scenarios like reducing bottlenecks in a CI/CD pipeline. These questions are more about your reasoning process than arriving at a perfect answer.Start by practicing our High-Level Design examples to build your framework, and practice sketching out the URL shortener on our System Design Whiteboard to get comfortable thinking through architecture under time pressure.5. BehavioralCGI's behavioral round reflects their Member philosophy, where employees are expected to think and act like owners of the business. Expect questions about how you've handled project ownership, disagreements with teammates, or situations where you went beyond your role.Structure your answers clearly using the STAR principle to keep your responses focused and easy to follow. Vague answers tend to fall flat here, so anchor every story in a specific project or situation.Candidates who ask thoughtful questions at the end of the interview consistently stand out. Preparing two or three genuine questions about the team or the role's evolution shows the kind of initiative CGI values. Our Behavioral Playbook has solid guidance on this.ConclusionCGI's process rewards candidates who know their CV deeply, can explain the trade-offs behind their technical choices, and show genuine ownership in how they talk about their work. Start early, focus on the topics above, and follow the CGI Interview Roadmap for a structured path through every stage.
- Recruiter Screen: Usually a brief introductory call where you'll discuss your background, salary expectations, and location preferences. It typically lasts around 15 to 30 minutes and sets the tone for the rest of the process.
- Online Assessment: Most common for fresher and junior roles, this is a timed, proctored test often hosted on a platform like AMCAT. It generally covers quantitative aptitude, technical MCQs across Java, SQL, and OOPs, verbal ability, and one or two coding problems at an easy to medium difficulty level.
- Technical Interview(s): Usually one or two rounds, each around 45 to 60 minutes, often conducted virtually via Teams or Webex. Interviewers tend to stay close to your CV, so expect deep questions on the projects and technologies you list, along with live coding or debugging on a shared screen.
- Managerial / Behavioral Round: A discussion with a hiring manager focusing on how you handle project ownership, team conflict, and cultural fit. CGI refers to its employees as Members, and questions often reflect their expectation that you think like a business owner.
- HR Discussion / Offer: A short final call, usually around 15 to 30 minutes, to verify details and discuss your offer. Joining letters are often issued within a month of completing the final round.
- Data Structures & Algorithms (DSA): Coding problems focused on strings, arrays, stacks, queues, and sorting.
- Core Java & CS Fundamentals: Java internals, OOP concepts, multithreading, and memory management.
- SQL & Databases: Joins, keys, aggregate functions, and writing queries for real-world scenarios.
- System Design: Designing simple systems and discussing architectural trade-offs.
- Behavioral: Project ownership, team conflict, and fit with CGI's Member culture.
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