Engineering Technology Interview Questions

230 engineering technology interview questions shared by candidates

The hiring manager asked a question about my previous employment, but there were no leadership-focused questions, which I expected for a manager-level role. There was also no clear discussion about the responsibilities, expectations, or vision for the position, which made the conversation feel disconnected and unstructured.
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Manager Data Engineering with Director of IT

Interviewed at Niagara Bottling

3.3
Nov 21, 2025

The hiring manager asked a question about my previous employment, but there were no leadership-focused questions, which I expected for a manager-level role. There was also no clear discussion about the responsibilities, expectations, or vision for the position, which made the conversation feel disconnected and unstructured.

Round 1: 1. API to API communication (REST) 2. API to API - Sync vs Async - How to process in Multi Threading environment? 3. Event driven communication between two REST APIs 4. MQ drive communication between two REST APIs 5. Microservices - Timeout error from backend APIs, how to handle? Resilience API? 6. Java 8 vs Java 11 vs Java 17? 7. Collections - How can you handle in multi threading environment? 8. How to create locks in Java? Spring boot vs Spring Web? When to use? Round 2: (client round) 1. More on Project based question (as per Resume) 2. Scenario based questions like how to handle exceptions in REST API (30X,40X,50X), timeout errors between APIs etc 3. Apache Kafka - Steps taken to eliminate producing duplicates at Kafka Broker/Topic/Partition? Is it possible? 4. Cassandra - Major diff. with Oracle/MongoDB, 5. Java Collections - How to handle exceptions while processing through Streams API (parallel and sequential) 6. Lead - How to handle team, deliverables if something goes wrong, any diff. situation you faced so far, etc.
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Technology Engineering Lead

Interviewed at Cognizant

3.9
May 22, 2023

Round 1: 1. API to API communication (REST) 2. API to API - Sync vs Async - How to process in Multi Threading environment? 3. Event driven communication between two REST APIs 4. MQ drive communication between two REST APIs 5. Microservices - Timeout error from backend APIs, how to handle? Resilience API? 6. Java 8 vs Java 11 vs Java 17? 7. Collections - How can you handle in multi threading environment? 8. How to create locks in Java? Spring boot vs Spring Web? When to use? Round 2: (client round) 1. More on Project based question (as per Resume) 2. Scenario based questions like how to handle exceptions in REST API (30X,40X,50X), timeout errors between APIs etc 3. Apache Kafka - Steps taken to eliminate producing duplicates at Kafka Broker/Topic/Partition? Is it possible? 4. Cassandra - Major diff. with Oracle/MongoDB, 5. Java Collections - How to handle exceptions while processing through Streams API (parallel and sequential) 6. Lead - How to handle team, deliverables if something goes wrong, any diff. situation you faced so far, etc.

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