Canary in the Coal Mine?
What 28 months of job postings data reveal about software developer demand since ChatGPT launched.
Software developers are, by most measures, the occupation most directly affected by generative AI. If the models are good enough to do the work, the signal should show up in hiring first.
So what does 28 months of job postings data actually show?
1.7 million Americans work as Software Developers, the largest technical occupation in the US economy, projected to add the second most new jobs of any occupation by 2034. Claude Code turns laymen into coders. Block just cut 4,000 jobs and blamed AI. But when things get cheaper, we buy more of them. Citadel Securities recently published research showing developer demand is up 11% year over year.
The headline numbers are real. What they miss is more important.
Software Developer Demand Is Rising, But Falling Behind the Market
Software developer postings are up 13% since November 2022. The rest of the labor market is up 42%. That is a 29 percentage point gap. The occupation is growing, but it is being lapped by every other part of the economy.
Software Developers Are a Shrinking Share of the Labor Market
Share tells a starker story than levels. Developers went from 2.16% of all job postings to 1.37%, a 37% contraction in market share over 28 months.
This is not a data artifact. The finding holds across every source type tested. On job board data (the same type Citadel cites), the gap is actually wider.
| Source Filter | SW Dev | Market | Gap |
|---|---|---|---|
| Company-sourced | 88 | 105 | -17pp |
| All sources | 69 | 98 | -29pp |
| Job board only | 63 | 94 | -31pp |
Indexed to November 2022 = 100. February 2026 values.
Demand Scales with Proximity to Frontier AI
Disaggregate by company type and the picture changes completely. The Mag 7 (Apple, Amazon, Google, Meta, Microsoft, Nvidia, Tesla) more than doubled their software developer hiring, reaching 228 on the index. AI-User Tech companies (Salesforce, Adobe, Intuit, ServiceNow, Shopify, Atlassian) sit at 137. All other companies are at 83. Traditional Enterprise, companies outside the technology sector, have fallen to 66.
Demand does not scale with company size. It scales with proximity to frontier AI.
The AI Buildout Is Uneven
Even within the Mag 7, the buildout is uneven. Microsoft at 252, Nvidia at 461, Tesla at 336. Amazon at 189 and Meta at 283 are both above baseline but trend differently.
Tesla note: the baseline is roughly 20 software developer postings per month, an order of magnitude smaller than other Mag 7 companies. Single-month fluctuations produce large index swings. The spike to 336 reflects a January 2026 burst that has already reverted. Not a deduplication artifact (confirmed via title and city analysis), but subject to small-sample volatility.
The Occupation Is Getting More Senior
The composition of remaining demand is shifting. Senior roles (10+ years required) rose from roughly 11% to 15.9% of postings. Entry-level roles (0-2 years) fell from roughly 19% to 14.1%. The lines crossed in early 2023 and have stayed separated since.
Senior Developer Pay Is Pulling Away
Wages are diverging in the same direction. Senior developers now advertise a median salary of $163K. Mid-level sits at $149K. Entry-level, $85K. The gap between senior and entry-level has widened by roughly $30K since 2022.
How Demand Is Shifting for Software Development's Defining Skills
Programming languages are declining. Production infrastructure is surging. Python is the exception: the lingua franca of AI.
CI/CD leads all gainers at +8.5pp. Python follows at +5.3pp, API at +4.6pp, Code Review at +3.8pp. On the other side: Software Development as a listed skill down -4.9pp, Java down -4.8pp, C# down -3.9pp, Agile down -3.6pp.
The skills that are rising are the ones that make AI-generated code deployable. The ones falling are the ones AI can now generate.
Not Displacement. Reorganization.
The macro logic is sound: productivity shocks expand output. But the micro data shows the complement accrues unevenly.
Closer to building AI: more developers needed. Further away: fewer.
The occupation is not shrinking. It is restructuring. More senior, more AI-native, more concentrated at the frontier.
Notes and Methodology
Data: Burning Glass Institute analysis of Lightcast job postings, company-sourced, non-staffing. BLS Occupational Outlook Handbook (2024 estimates). Indexed to November 2022 = 100. Last 7 days excluded (data lag). Smoothing: 3-month rolling average on monthly data.
Mag 7: Apple, Amazon, Google, Meta, Microsoft, Nvidia, Tesla. AI-User Tech: Salesforce, Adobe, Intuit, ServiceNow, Shopify, Atlassian, et al. Salary coverage: approximately 15% of postings include salary data.
Skill importance: IndVal (Dufrene and Legendre, 1997). Top 20 skills ranked by occupation-specificity score. Pre-ChatGPT: Jan-Oct 2022. Post-ChatGPT: Mar 2025-Feb 2026.