What is Machine Coding?

Machine Coding is a practical software engineering interview round where candidates are asked to design and implement a working software system within a limited time.

Unlike a traditional DSA interview, which mainly focuses on algorithms and data structures, a Machine Coding Round evaluates how well you can design, structure, and write real-world software.

Companies such as Flipkart, Myntra, Swiggy, Cred, Razorpay etc use Machine Coding Interviews to evaluate a candidate's practical software engineering skills.

A typical Machine Coding Round may ask you to build a system such as a Parking Lot, Elevator, Movie Booking System, Vending Machine, Splitwise, or In-Memory Database.

During the interview, interviewers generally look at:

• Object-Oriented Programming (OOP)
• SOLID principles
• Design patterns used
• Clean and maintainable code
• Extensibility and flexibility
• Handling changing requirements

The objective is not simply to make the application work. Your solution should be well-designed, easy to understand, maintainable, and extensible when new requirements are introduced.

In simple terms

Machine Coding is an interview where you turn a real-world problem statement into a working, well-designed piece of software.

It tests not just whether you can code, but how you design and write code.