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Devtools Tech

Team Devtools Tech Official Profile

Certificates

Certificate for JavaScript Memory and Garbage Collection

JavaScript Memory and Garbage Collection

Issued 6 October 2026

Optimising Web Performance for Low-Powered Devices

64

Production monitoring and the long tail

91

Image CDNs and delivery infrastructure

50

Prioritising Critical Images

39

Lazy Loading Images

29

Responsive Images: srcset, sizes, and picture

26

Reducing Image Bytes

30

Measuring Image Performance with Core Web Vitals

47

Foundations: Why Image Optimisation Matters & How Browsers Load Images

74

Cars24 Frontend Interview Experience

4,951

How I got promoted at my job?

3,155

How to refactor large codebases?

2,706

Implementing JavaScript Promise Polyfill

2,878

How React SSR Actually Works (Without Frameworks)

3,086

What is the significance of the React Fiber architecture?

4,713

How to improve job search using Google

6,835

Why people fail at interviews?

4,831

Zomato Frontend Interview Experience | SDE 2

5,603

Microsoft Frontend Interview Experience

5,594

Best Code Practices for Real-World Applications - Part 1

15

Guide to Effective Interview Preparation

8,052

Rippling Frontend Interview Experience

5,764

Flipkart Frontend Interview Experience | UI Engineer 2

11,154

Internationalization (i18n) in React

82

Uber Frontend Interview Experience (SDE-2)

6,155

Blinkit Frontend Interview Experience (SDE 1)

5,674

Walmart Global Tech Frontend Interview Experience (SDE 3)

6,752

Mastering Critical Rendering Path

175

URLs and Routing - Practical Example

60

URLs and Routing in Frontend Applications

121