MakeMyTrip Frontend Interview Experience | SDE1 Bangalore

Frontend & JavaScript Fundamentals

The discussion focused heavily on React and JavaScript concepts:

✅ Difference between useCallback and useMemo

* When to use each hook
* Performance optimization scenarios
* Common pitfalls

✅ JavaScript Promises

* Promise chaining
* Error handling
* Async/Await internals

✅ Callback Hell

* Problems it creates
* How Promises and Async/Await solve it

✅ Output-based Questions
Several tricky questions around:

* Promise execution order
* Event Loop
* Microtasks vs Macrotasks
* Nested Promise

✅ MCP (Model Context Protocol)

* Basic understanding
* Use cases and architecture discussions

✅ LangGraph

* Agent workflows
* Multi-agent orchestration
* State management concepts

✅ Scenario-based discussions around AI applications and integrations

Implemented a Typeahead Search / Autocomplete component with discussions around:

* Debouncing
* API optimization
* Race conditions
* Performance considerations
* User experience improvements

Key Takeaway

The interview wasn’t about memorizing APIs. The focus was on:

* Understanding core JavaScript behavior
* React performance optimization
* Problem-solving ability
* Awareness of modern AI frameworks and tooling