This interview process is designed to assess candidates for the Staff Engineer II role at InMobi, focusing on deep technical expertise, problem-solving abilities, system design, leadership potential, and cultural fit.
Rounds·4
Timeline·~14d
Experience·8 - 15 yrs
Comp band·US$180000 - US$250000
Interview time·225 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 04 phases
01 / 04Phase 01 of 04
Weeks 1-2: Data Structures & Algorithms (DSA) fundamentals. Practice 2-3 problems daily.
Weeks 1-2: Focus on core data structures (Arrays, Linked Lists, Trees, Graphs, Hash Tables) and algorithms (Sorting, Searching, Dynamic Programming, Greedy Algorithms). Practice implementing these efficiently and analyze their time/space complexity. Aim for 2-3 coding problems per day.
Phase 02 of 04
Weeks 3-4: System Design principles and patterns. Practice designing scalable systems.
Weeks 3-4: Deep dive into System Design. Study concepts like load balancing, caching, databases (SQL vs. NoSQL), message queues, microservices, CAP theorem, and consensus algorithms. Work through common system design interview questions and practice designing scalable systems.
Phase 03 of 04
Week 5: Behavioral and Leadership preparation using STAR method.
Week 5: Prepare for behavioral and leadership questions. Reflect on your career experiences, identifying examples of leadership, problem-solving, conflict resolution, and mentorship. Use the STAR method (Situation, Task, Action, Result) to structure your answers.
Phase 04 of 04
Week 6: Final review, mock interviews, and company research.
Week 6: Final review and mock interviews. Revisit challenging DSA and System Design topics. Conduct mock interviews with peers or mentors to simulate the actual interview environment and get feedback.
Questions
Locations
Fig · Regions — 02 locations
01 / 02Location
Interview focus
Common questions
Tips
Location
Interview focus
Common questions
Tips
Rounds
Expand a step for evaluation criteria, sample questions, and prep notes.
Technical Interview (Coding) · 60 min · Senior Software Engineer / Tech Lead
This round focuses on your core programming skills and problem-solving abilities. You will be asked to solve one or two coding problems, typically involving data structures and algorithms. The interviewer will assess your ability to write clean, efficient, and correct code, as well as your approach to breaking down complex problems.
What they look for
Evaluation
Sample questions
Given a binary tree, find the lowest common ancestor of two given nodes in the tree.
Implement a function to find the k-th largest element in an unsorted array.
Prep for this round
Common rejection reasons
System Design Interview · 60 min · Senior Staff Engineer / Principal Engineer
This round evaluates your ability to design and architect complex systems. You will be presented with an open-ended problem, such as designing a specific service (e.g., a social media feed, a ride-sharing app backend). The focus is on your ability to break down the problem, identify core components, consider scalability, reliability, and performance, and articulate your design choices.
What they look for
Evaluation
Sample questions
Design a system like Twitter's news feed.
Design an API rate limiter.
Prep for this round
Common rejection reasons
Behavioral & Leadership Interview · 45 min · Engineering Manager / Director
This round focuses on your behavioral aspects, leadership potential, and how you collaborate within a team. You'll be asked questions about your past experiences, focusing on situations where you demonstrated leadership, handled conflicts, mentored others, or contributed to team success. The interviewer aims to understand your working style and cultural fit.
What they look for
Evaluation
Sample questions
Tell me about a time you had to lead a project or initiative.
Describe a situation where you disagreed with a teammate or manager. How did you handle it?
How do you mentor junior engineers?
Prep for this round
Common rejection reasons
Executive / Strategic Interview · 60 min · Senior Director of Engineering / VP of Engineering
This is typically the final round, often with a senior leader. It focuses on your strategic thinking, your ability to influence technical direction at a higher level, and your overall fit for a Staff Engineer role. Expect questions that probe your understanding of technology trends, your vision for future systems, and how your technical contributions align with business goals.
What they look for
Evaluation
Sample questions
What are the biggest technical challenges facing InMobi in the next 3-5 years, and how would you address them?
Describe a time you made a significant technical decision that had a major impact on the product or business.
How do you balance technical debt with the need for rapid feature development?
Prep for this round
Common rejection reasons
DSA
Frequently reported on InMobi loops
Other guides
