Senior Principal Engineer Interview Questions and Answers

API testing involves testing the functionality, reliability, performance, and security of APIs.

• To validate response, check the status code, response headers, and response body

• PUT is used to update an existing resource, POST is used to create a new resource, and PATCH is used to update a part of an existing resource

• Data-driven testing in Postman can be done using CSV or JSON files

• Response data from one request can be used in another request using environment variables

• REST API ...read more

Equipment placement in a module involves considering space constraints, functionality, and safety. Piping is done based on equipment layout and process requirements.

• Consider space constraints and equipment functionality when placing equipment in a module

• Ensure proper clearance for maintenance and operation

• Follow process requirements and safety regulations when designing piping layout

• Use piping software or tools to optimize piping design

• Consider factors like pressure, flow rat...read more

Wellhead platform arrangements and requirements involve the design and layout of structures for drilling and production operations.

• Wellhead platforms are structures located above the wellhead to support drilling and production equipment.

• Arrangements must consider factors such as well spacing, equipment layout, and safety regulations.

• Requirements may include weight capacity, access for maintenance, and environmental considerations.

• Examples of wellhead platform arrangements inc...read more

A flash sale system is designed to offer limited-time discounts on products or services to create urgency and drive sales.

• Create a platform where customers can browse and purchase discounted products or services within a specified time frame

• Implement a countdown timer to create a sense of urgency

• Ensure a limited quantity of items available to increase demand

• Notify customers about upcoming flash sales through email or push notifications

• Implement a secure payment gateway to fac...read more

Implement merge sort algorithm for array of strings

• Divide the array into two halves

• Recursively sort each half

• Merge the two sorted halves

• Use string comparison for merging