Why pre-screen game developers before the technical test
Game development attracts a large number of capable programmers whose experience is prototypes: a mechanic that works, a demo that runs on their own machine, a project abandoned before the hard part. Shipping introduces the parts that are actually difficult, namely performance on the lowest target device, certification requirements, and a bug that only reproduces on one platform after two hours of play. A short screen asks about those directly and sorts the field before a technical test.
What actually matters when screening Game Developer candidates
- 01
Technical proficiency
Check depth in their engine of record: C# in Unity or C++ and Blueprints in Unreal, plus shaders, animation state machines, physics ticks, and gameplay systems they wrote from scratch.
- 02
Systems and trade-offs
Probe how they held a 16.6ms frame budget: draw call batching, LOD and culling choices, memory limits on Switch or mobile, and netcode versus determinism trade-offs.
- 03
Evidence and rigour
Look for shipped titles with platform detail: Steam release, console certification (TRC, TCR, lotcheck), crash rates, playtest telemetry, and what they changed after watching real players.
- 04
Collaboration and communication
Assess how they work with designers and artists: implementing tunable parameters, Perforce or Git LFS discipline, milestone and vertical slice pressure, and pushing back on scope.
Pre-screening questions to ask Game Developer candidates
12 questions grouped by what they test. Ask the same set in every screen and score answers on a consistent scale, or send them as an async video screen and compare answers side by side.
Engine and language depth
3 questions01Can you explain your experience with game engines such as Unity or Unreal?
Listen forOne engine with real depth including where it fights them, plus what they had to work around rather than a feature list.
Claims both engines equally, or describes an engine as straightforward with nothing frustrating about it.
02Which programming languages are you most proficient in for game development?
Listen forA primary language tied to shipped work, with awareness of where performance requires dropping to a lower level.
Languages listed with no project behind them, or no awareness of performance-critical code paths.
03What is your experience with game physics and the mathematics behind it?
Listen forWorking understanding applied to a real problem, such as collision behaviour or movement feel they had to tune themselves.
Physics left entirely to the engine, or no experience diagnosing a movement or collision problem.
Shipped not prototyped
3 questions04Can you give an example of a game or project where you took a leading role?
Listen forA project that shipped with platform and scope named, plus their own contribution separated from the rest of the team.
Prototypes or abandoned projects presented as shipped work, or a team title with no personal scope described.
05Can you discuss your experience with mobile game development?
Listen forReal constraints handled: memory limits, battery, device fragmentation, and the lowest specification they had to support.
Mobile experience limited to building for a simulator, or no awareness of the lowest target device.
06Have you worked with multiplayer or networked games?
Listen forReal networking work with latency and authority considered, plus what happened when a connection dropped mid-session.
Multiplayer described as adding a networking package, or no handling of latency and disconnection.
Debugging the specific
3 questions07Have you had to optimise a game for performance? How did you approach it?
Listen forProfiling before changing anything, the actual bottleneck named, and the compromise made to hold the frame budget on the lowest device.
Optimises by guessing at likely causes, or no frame budget the work was measured against.
08Can you discuss a time you had to debug a particularly difficult issue in a game?
Listen forA bug that only reproduced under specific conditions, with how they narrowed it and the point their first theory collapsed.
Bugs resolved by changing code until the symptom disappeared, with no confirmed cause.
09What is your process for testing and ensuring the quality of your games?
Listen forTesting on real target hardware rather than only in editor, with a bug that reached players and what changed afterwards.
Testing performed in editor only, or quality treated entirely as the testing team's responsibility.
Working with the team
3 questions10How do you ensure your work aligns with the overall vision of a project?
Listen forDirect work with designers on feel and iteration, with a technical constraint they explained in terms a designer could act on.
Implements specifications with no dialogue, or describes design changes as churn to be resisted.
11Can you describe your experience with asset integration and management?
Listen forPipeline work with artists, including naming and import conventions, and a bottleneck they removed from the asset workflow.
No involvement in the art pipeline, or assets imported ad hoc with no convention or automation.
12What is your experience with version control in a team setting?
Listen forReal team workflow including handling large binary assets, which is where game projects differ from ordinary software.
Version control used solo only, or no awareness of how binary assets complicate branching and merging.
How to score responses
Score every candidate on the same four criteria immediately after the screen. At this stage you are shortlisting for panel interviews, not making the final call.
Technical proficiency
35%5Names specific systems they coded, explains engine internals such as update order, GC allocations, or Blueprint to C++ boundaries accurately.
Systems and trade-offs
25%5Cites measured before and after numbers from Unity Profiler, Unreal Insights, or RenderDoc, and defends the trade-off they picked.
Evidence and rigour
25%5Walks through a released build they owned, including cert failures fixed and telemetry or playtest data that reshaped their code.
Collaboration and communication
15%5Describes building tooling designers actually used, handling merge conflicts on binary assets, and negotiating cuts before a milestone build.
Prototypes omit exactly the parts that are hard: frame budgets, certification and platform-specific bugs. A one-way video screen asks about those before a technical test.
Try it on HirevireScreening FAQ
Process basics
How long should a pre-screening round for a game developer take?
Fifteen minutes across eight to ten questions, answered async. Enough to confirm engine depth, establish whether they have shipped or prototyped, and hear one performance or platform-specific debugging story.
How should I weigh personal projects?
They demonstrate motivation and some capability, and they systematically omit the hard parts. A completed small game that shipped to a store teaches more than an ambitious prototype, because finishing forces the optimisation and polish work.
Evaluating answers
What is the strongest signal when screening a game developer?
Optimising against a frame budget. Developers who have shipped describe profiling, finding the actual bottleneck, and the compromise they made to hold frame rate on the lowest target device. Prototype experience produces no such story.
How do I judge engine claims?
Ask what they found frustrating about it. Developers with real depth in an engine can name where it fights them and what they worked around. Anyone describing an engine as straightforward has used it for tutorials rather than for a project.
Go deeper on this role
Sanat has been hiring since 2012 and watching the recruitment industry change up close ever since, and turned that screening process into Hirevire's video screening platform. LinkedIn
