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SOLID principles, DDD, CQRS, Concurrent dictionaries in C#, but the most concentration was on Kafka (including some configuration details) and they were describing some specific scenarios with Kafka events and asking for my solutions in such use cases, including database transactions handling.
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Senior Backend .NET Developer

Interviewed at IronFX

4.2★
Jan 26, 2023

SOLID principles, DDD, CQRS, Concurrent dictionaries in C#, but the most concentration was on Kafka (including some configuration details) and they were describing some specific scenarios with Kafka events and asking for my solutions in such use cases, including database transactions handling.

1. CRUD over HTTPS: They asked questions about implementing RESTful endpoints (POST, GET, PUT, DELETE) and handling HTTP requests correctly. 2. Code organization: They emphasized writing clean code, making each function do one clear job. This tested my ability to structure code for maintainability. 3. Callback function challenge: There was a small coding exercise involving streams and callbacks, where I had to select a random element fairly from a stream of data.

Senior Backend Developer

Interviewed at Agentifai

4★
Sep 10, 2025

1. CRUD over HTTPS: They asked questions about implementing RESTful endpoints (POST, GET, PUT, DELETE) and handling HTTP requests correctly. 2. Code organization: They emphasized writing clean code, making each function do one clear job. This tested my ability to structure code for maintainability. 3. Callback function challenge: There was a small coding exercise involving streams and callbacks, where I had to select a random element fairly from a stream of data.

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