Popular destinations
Skill trends, comparisons, salary context, resume help and long-form guides — jump straight to what brings people back.
Programming Language Demand Index
Ranked by active job listings across data engineering, backend, AI and web roles. See which languages employers are hiring for right now and how demand is shifting week over week.
Languages tracked
16
Across data, backend, AI and web
Active listings
8,567
Currently indexed across all languages
Top language
Python
2,293 active listings
Data cadence
Weekly
New snapshots from active job postings
All languages — ranked by job demand
Python
The dominant language for data engineering, machine learning and scripting
Active listings
2,293
7-day trend
+333SQL
The universal language of data — querying, transforming and analysing structured data
Active listings
1,655
7-day trend
+194Java
Enterprise backend and data platform language — Spark, Kafka and Flink run on the JVM
Active listings
1,233
7-day trend
+162JavaScript
The language of the web — frontend, backend and tooling
Active listings
680
7-day trend
+85TypeScript
Typed superset of JavaScript used across the full stack
Active listings
679
7-day trend
+81C#
.NET ecosystem for enterprise backends and cloud services
Active listings
392
7-day trend
+72C++
High-performance systems code — ML inference engines and embedded systems
Active listings
362
7-day trend
+62Kotlin
Modern JVM language used in Android and backend services
Active listings
302
7-day trend
+31Rust
Memory-safe systems programming — increasingly used in data tools like Polars and Delta-rs
Active listings
207
7-day trend
+18Scala
JVM language powering Apache Spark and Kafka Streams
Active listings
182
7-day trend
+25Ruby
Expressive backend language — Ruby on Rails and data scripting
Active listings
178
7-day trend
+24Go
High-performance backend services, CLIs and infrastructure tooling
Active listings
170
7-day trend
+22Bash / Shell
Shell scripting for automation, CI/CD pipelines and data workflows
Active listings
105
7-day trend
+20Swift
Apple platform development — iOS, macOS and server-side Swift
Active listings
64
7-day trend
+6PHP
Server-side web development — powers a large share of the web
Active listings
63
7-day trend
+7R
Statistical computing and data visualisation — dominant in academia and research
Active listings
2
7-day trend
—How rankings are calculated
Active job listings
Each language is matched against skills extracted from real job listings scraped daily. Only currently active listings are counted — expired roles are excluded.
7-day trend
The trend shows the change in active listings over the past seven days — the latest daily snapshot against the one from roughly a week earlier. A positive number means demand grew; negative means it fell.
Explore related intelligence
Based on active job listings across data, backend, AI and web categories · Updated weekly