Here is total employment for "Computer Systems Design and Related Services" going back all the way to 1987. This is the best category I can find that includes data over a decade+ time frame.
This category is defined by the BLS as "establishments primarily engaged in providing expertise in the field of information technologies through one or more of the following activities: (1) writing, modifying, testing, and supporting software to meet the needs of a particular customer; (2) planning and designing computer systems that integrate computer hardware, software, and communication technologies; (3) on-site management and operation of clients' computer systems and/or data processing facilities; and (4) other professional and technical computer related advice and services."
"data in this graph are copyrighted." No, no they are not. Data can't be copyrighted, at least in the USA. The format of the days can be copyrighted. But not the data itself.
Here's the graph for all job postings in the US: https://fred.stlouisfed.org/series/IHLIDXUS Note all job postings were up in 2022 so if the point was about software in particular it should probably be normalised.
It takes a bit of digging to find the definition of the index they’re using.
From their GitHub page: “The data in this repository are the percentage change in seasonally-adjusted job postings since February 1, 2020, using a seven-day trailing average.”
The graph is a bit odd on desktop too. The baseline is Feb 1, 2020, which equals 100 units on the y-axis. Given this normalization, I am less concerned about the y-axis starting at 60.
However, the graph would be much more informative if there were 10 or 20 years of data. It's unclear to me why Feb 1, 2020 is a good baseline to use.
It seems every major job posting platform gets overran with spam and eventually candidates move to a new platform every ~5 years.
First it was CareerBuilder, then Monster, then Dice, and now Indeed is having its day in the sun too. I wonder if the emergence of GenAI in the past 2 years have accelerated the spamification of Indeed and thus its demise. I’ve posted there and within minutes get hundreds of AI-generated “candidates” with practically the same resume/CV.