January 2015 - Tracking the most popular programming languages, databases and software development tools in whoishiring discussion threads.
With a fresh year, the opportunity to refine the chart arose with the assistance of reader Alejandro, who helped add a 3 month moving average as the charted metric giving a much smoother charting experience.
For January, there was a large drop in the number of postings due to the thread coming on holiday (Happy New Year!). But, for the most part, similar rankings and trends continued.
Compare JavaScript, Python, Ruby and Java
Compare C++, Scala, Clojure and Go
Compare Rails, node.js, PHP and Django
Compare AngularJS, Backbone, Ember and jQuery
Compare Postgresql, MySQL and SQL Server
Compare Mongodb, Cassandra, Riak and CouchDB
Compare Chef, Puppet, Ansible and the DevOps term itself
| Tech | Rank | Last Month | Change | Last Year | Change |
|---|---|---|---|---|---|
| Python | 1 | 2 | +1 | 2 | +1 |
| JavaScript | 2 | 1 | -1 | 1 | -1 |
| Remote | 3 | 3 | 0 | 3 | 0 |
| AngularJS | 4 | 5 | +1 | 5 | +1 |
| iOS | 5 | 4 | -1 | 9 | +4 |
| Rails | 6 | 6 | 0 | 6 | 0 |
| Ruby | 7 | 7 | 0 | 4 | -3 |
| Android | 8 | 10 | +2 | 7 | -1 |
| passionate | 9 | 8 | -1 | 10 | +1 |
| node.js | 10 | 9 | -1 | 32 | +22 |
| AWS | 11 | 12 | +1 | 26 | +15 |
| Full Stack | 12 | 17 | +5 | 18 | +6 |
| Postgresql | 13 | 15 | +2 | 24 | +11 |
| Machine Learning | 14 | 19 | +5 | 34 | +20 |
| CSS | 15 | 11 | -4 | 8 | -7 |
| Java | 16 | 13 | -3 | 15 | -1 |
| Open Source | 17 | 28 | +11 | 11 | -6 |
| linux | 18 | 20 | +2 | 16 | -2 |
| api | 19 | 29 | +10 | 25 | +6 |
| Backbone | 20 | 18 | -2 | 14 | -6 |
| Tech | Mentions | Rank | Last Year Mentions | Last Year Rank | Change |
|---|---|---|---|---|---|
| Docker | 10 | 37 | 0 | 174 | +137 |
| React | 5 | 63 | 0 | 158 | +95 |
| jenkins | 5 | 58 | 0 | 146 | +88 |
| Ansible | 9 | 42 | 3 | 75 | +33 |
| EC2 | 10 | 33 | 4 | 60 | +27 |
| Cassandra | 5 | 60 | 2 | 83 | +23 |
| node.js | 25 | 10 | 12 | 32 | +22 |
| Spark | 6 | 54 | 2 | 76 | +22 |
| C# | 10 | 36 | 4 | 57 | +21 |
| Machine Learning | 19 | 14 | 11 | 34 | +20 |
| Tech | Mentions | Rank | Last Year Mentions | Last Year Rank | Change |
|---|---|---|---|---|---|
| Compass | 1 | 119 | 5 | 54 | -65 |
| Puppet | 2 | 95 | 5 | 55 | -40 |
| nginx | 3 | 79 | 7 | 47 | -32 |
| Web Services | 5 | 64 | 8 | 39 | -25 |
| less | 9 | 43 | 16 | 22 | -21 |
| D3.js | 6 | 56 | 10 | 36 | -20 |
| Mongodb | 11 | 30 | 20 | 13 | -17 |
| Distributed Systems | 5 | 59 | 7 | 45 | -14 |
| Spring | 4 | 69 | 5 | 56 | -13 |
| CoffeeScript | 9 | 41 | 12 | 28 | -13 |