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Data Layer - Overview

The data layer regroups all the technologies used to transmit and manage data. It's a vast category where many approaches compete to make a tricky problem more approachable.

Overall Results

Overall Results

Overall Data Layer results.

PercentsCounts
Never heard of it
Heard of it, not interested
Heard of it, would like to learn
Used it, would not use again
Used it, would use again

Salary Breakdown

Salary Breakdown

Salary breakdown for developers who picked “used it, would use again” for a given option.

Each cell shows the percentage of users in a given salary range, darker means higher usage.

PercentsCounts
1RdRedux2MxMobX3ApApollo4GqGraphQL5RyRelay/Relay Modern
more than $200k
2.2%
2.5%
3.3%
3.6%
7%
$100k-$200k
23%
24.7%
26.8%
26.7%
36.2%
$50k-$100k
32.1%
28.5%
31.3%
32%
28.2%
$30k-$50k
17.1%
16.6%
16.5%
15.7%
9.9%
$10k-$30k
14.3%
14.6%
11.4%
10.8%
10.8%
$0k-$10k
5.4%
6%
5.3%
5.1%
3.8%
I work for free
3.4%
4.4%
3.4%
3.9%
1.4%
Average salary
$74.2k
$74.5k
$81k
$81.9k
$99.2k

Company Size Breakdown

Company Size Breakdown

Company size breakdown for developers who picked “used it, would use again” for a given option.

Each cell shows the percentage of users in a given company size range, darker means higher usage.

PercentsCounts
1ApApollo2MxMobX3GqGraphQL4RdRedux5RyRelay/Relay Modern
More than 1000 employees
15.2%
14.8%
17.7%
19%
26.8%
100 to 1000 employees
19.8%
22.6%
20.4%
23.2%
21.1%
50 to 100 employees
11.6%
15.1%
11.3%
12.7%
9.9%
20 to 50 employees
15.5%
13.3%
14.5%
13.9%
12.2%
10 to 20 employees
11.1%
9.4%
10.4%
9.8%
11.3%
5 to 10 employees
8.7%
8.9%
8.1%
7.5%
5.6%
1 to 5 employees
9.2%
6.8%
8.5%
6.6%
7%
One employee
8.1%
8.3%
8.6%
6.7%
4.7%
Average company size
354
365
393
429
532

Years Of Experience Breakdown

Years Of Experience Breakdown

Years of experience breakdown for developers who picked “used it, would use again” for a given option.

Each cell shows the percentage of users in a given years of experience range, darker means higher usage.

PercentsCounts
1RdRedux2ApApollo3GqGraphQL4MxMobX5RyRelay/Relay Modern
More than 20 years
5.1%
5.1%
5.9%
6.8%
5.2%
10 to 20 years
22.3%
24.6%
25.9%
25.6%
28.2%
5 to 10 years
30.4%
30.1%
29.9%
27.8%
31%
2 to 5 years
30%
30.5%
29.2%
29.9%
28.2%
1 to 2 years
9.8%
8.1%
7.6%
8.3%
6.1%
Less than one year
1.9%
1.1%
1.1%
1%
0.5%
Average years of experience
8yrs
8.3yrs
8.6yrs
8.6yrs
8.8yrs

Overall Happiness

Overall Happiness

On a scale of one (very unhappy) to five (very happy), how happy are developers with the current overall state of this category?

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