CIAN
Technical interview at CIAN
A real interview with the full timeline, linked technical questions and practice materials from CIAN.
10 questions2 tasks1 hr 25 minAudio recording available
Аудио и материалы
Аудио собеседования
0:00 / 1:25:09
Этап 2 из 4CIANML Engineer / Data Scientist2025-09-05 - 2025-10-06
Собеседования в CIAN: ML Engineer / Data ScientistТехническое собеседование в CIAN
Выводы и как готовиться
- The round is intentionally wide: Transformer internals, normalization, compression, classical ML, Spark, Python, algorithm coding and SQL all appear in one call.
- The задача task looks simple but checks index semantics and off-by-one handling in prefix-sum/sliding-window solutions.
- The final production block checks real ownership: ONNX service rollout, database publishing, staging failures, rollback thinking and microservice experience.