Josh by DailyHunt Game Developer Interview: Rounds, Questions and Preparation

What the job involves

Game developers at companies in the gaming and creator economy build and maintain interactive game features, often for live platforms with millions of users. Day to day, they write code in engines like Unity or Unreal, implement gameplay mechanics, optimise performance for mobile devices, and collaborate with designers and artists to ship updates. They also debug live issues, integrate analytics and monetisation, and support creator tools that let users make their own content.

Role and gaming industry knowledge

1. 1

   What is the difference between a game developer and a game designer?

   Explain that developers focus on coding and implementation, while designers focus on gameplay rules, levels, and user experience. Mention collaboration between the two.

2. 2

   How does the creator economy influence game development on platforms like Josh?

   Discuss how user-generated content, in-game creation tools, and social features drive engagement and monetisation. Highlight the need for scalable, easy-to-use tools.

3. 3

   What are the key challenges in developing games for the Indian mobile market?

   Cover low-end device support, varying network conditions, regional language support, and data usage. Mention optimisation for performance and battery life.

4. 4

   Can you explain the game development lifecycle from concept to live operations?

   Outline stages: ideation, prototyping, production, testing, launch, and live updates. Emphasise iterative development and player feedback.

Technical concepts and engine knowledge

1. 5

   What is the difference between Update and FixedUpdate in Unity?

   Explain that Update runs every frame and is for input and non-physics logic, while FixedUpdate runs at a fixed timestep for physics calculations. Mention when to use each.

2. 6

   How would you implement object pooling in a game to improve performance?

   Describe creating a pool of reusable objects instead of instantiate/destroy, especially for bullets or enemies. Mention reducing garbage collection and CPU spikes.

3. 7

   What are some common techniques to optimise a mobile game for low-end devices?

   Cover reducing draw calls, using texture atlases, lowering polygon counts, baking lighting, and compressing assets. Mention profiling to find bottlenecks.

4. 8

   Explain how collision detection works in a 2D game and what layers are used for.

   Describe bounding box and circle collisions, and the role of layers to filter which objects collide. Mention continuous collision detection for fast objects.

Practical scenarios and problem solving

1. 9

   A game feature is causing frame drops on mid-range Android devices. How would you diagnose and fix it?

   Talk about using profilers to identify CPU/GPU bottlenecks, checking for excessive draw calls or physics updates, and optimising assets or code. Suggest testing on target devices.

2. 10

   You need to add a new in-game currency that players can earn and spend. How would you design the system?

   Outline data structures for balance, transaction handling, persistence, and anti-cheat measures. Mention integration with backend APIs and analytics.

3. 11

   How would you implement a leaderboard for a casual game with millions of players?

   Discuss using a backend service with sorted sets (e.g., Redis), caching, and pagination. Mention handling updates and preventing cheating.

4. 12

   A bug is reported where players sometimes fall through the floor. How would you approach debugging this?

   Suggest checking collider sizes, physics timestep, and continuous collision detection. Mention reproducing the issue and logging positions.

Behavioural and HR questions

1. 13

   Tell me about a game project you built. What was your role and what did you learn?

   Describe the project, your specific contributions, challenges faced, and lessons learned. Highlight teamwork and technical growth.

2. 14

   How do you stay updated with the latest trends in game development and the creator economy?

   Mention following game dev blogs, YouTube channels, participating in game jams, and reading about platform updates. Show genuine interest.

3. 15

   Describe a time you had to work with a designer or artist whose vision conflicted with technical constraints.

   Explain how you communicated constraints, proposed alternatives, and reached a compromise. Emphasise collaboration and problem-solving.

4. 16

   Why do you want to work in the gaming and creator economy sector, and why our company?

   Connect your passion for games and creators with the company's mission. Mention specific products or features that excite you.