The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for OOCSS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited OOCSS over the 3 months to 30 March 2017 with a comparison to the same period in the previous 2 years.

Object-Oriented CSS (OOCSS)
England / London
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 582 628 637
Rank change year-on-year +46 +9  
Permanent jobs citing OOCSS 5 23 10
As % of all permanent IT jobs advertised in London 0.015% 0.054% 0.023%
As % of the Libraries, Frameworks & Software Standards category 0.037% 0.14% 0.063%
Number of salaries quoted 1 17 10
Median salary £40,000 £50,000 £75,000
Median salary % change year-on-year -20.00% -33.33%  
UK excluding London median salary £47,500 £42,500 £36,250
% change year-on-year +11.76% +17.24%  

OOCSS is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
London
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 13624 16999 15893
As % of all permanent IT job vacancies advertised in London 40.21% 39.98% 37.07%
Number of salaries quoted 11736 14843 13487
Median salary £57,500 £55,000 £54,000
Median salary % change year-on-year +4.54% +1.85%  
90% offered a salary of more than £38,000 £37,500 £35,500
10% offered a salary of more than £80,000 £72,500 £77,500
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +6.25%  

OOCSS
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing OOCSS as a proportion of all permanent or contract IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for OOCSS in London

OOCSS
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing OOCSS in London.

Salary trend for OOCSS in London

For the 6 months to 30 March 2017, IT jobs citing OOCSS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the London region with a requirement for OOCSS.

1 14 (100.00%) HTML
2 13 (92.86%) SMACSS
3 12 (85.71%) gulp
3 12 (85.71%) BEM - Block Element Modifier
3 12 (85.71%) Grunt
4 11 (78.57%) Sass
4 11 (78.57%) JavaScript
4 11 (78.57%) HTML5
4 11 (78.57%) Node.js
5 10 (71.43%) CSS
6 7 (50.00%) TDD
6 7 (50.00%) Web Development
6 7 (50.00%) CSS3
6 7 (50.00%) jQuery
6 7 (50.00%) Continuous Integration
7 6 (42.86%) Unit Testing
7 6 (42.86%) Git (software)
7 6 (42.86%) Agile Software Development
7 6 (42.86%) PHP
7 6 (42.86%) Photoshop
8 5 (35.71%) webpack
8 5 (35.71%) User Experience
8 5 (35.71%) ES6
9 4 (28.57%) Mobile First
9 4 (28.57%) React
9 4 (28.57%) Browserify
9 4 (28.57%) Yii
9 4 (28.57%) Bitbucket
9 4 (28.57%) Bower
9 4 (28.57%) AngularJS

OOCSS
Co-occurring IT Skills in London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 2 (14.29%) Drupal
Applications
1 6 (42.86%) Photoshop
Cloud Services
1 2 (14.29%) Amazon AWS
1 2 (14.29%) GitHub
Communications & Networking
1 4 (28.57%) Broadband
2 1 (7.14%) HTTPS
Development Applications
1 12 (85.71%) Grunt
1 12 (85.71%) gulp
2 6 (42.86%) Git (software)
3 5 (35.71%) webpack
4 4 (28.57%) Babel
4 4 (28.57%) Bitbucket
4 4 (28.57%) Bower
5 3 (21.43%) Buildbot
5 3 (21.43%) Gradle
5 3 (21.43%) Hudson
5 3 (21.43%) Jenkins
6 2 (14.29%) git-flow
6 2 (14.29%) Subversion
General
1 2 (14.29%) Marketing
1 2 (14.29%) Publishing
2 1 (7.14%) Law
Job Titles
1 7 (50.00%) Developer
2 4 (28.57%) Senior Software Engineer
2 4 (28.57%) Software Engineer
3 3 (21.43%) Front End Developer (Client-Side Developer)
4 2 (14.29%) Consultant
4 2 (14.29%) E-Commerce Consultant
4 2 (14.29%) PHP Developer
4 2 (14.29%) Senior Consultant
4 2 (14.29%) Senior Developer
4 2 (14.29%) Senior E-Commerce Consultant
4 2 (14.29%) Senior UI Consultant
4 2 (14.29%) UI Consultant
4 2 (14.29%) Web Developer
5 1 (7.14%) Lead Developer
Libraries, Frameworks & Software Standards
1 14 (100.00%) HTML
2 11 (78.57%) HTML5
2 11 (78.57%) Node.js
2 11 (78.57%) Sass
3 10 (71.43%) CSS
4 7 (50.00%) CSS3
4 7 (50.00%) jQuery
5 4 (28.57%) AngularJS
5 4 (28.57%) Backbone.js
5 4 (28.57%) Browserify
5 4 (28.57%) Express
5 4 (28.57%) Pug
5 4 (28.57%) React
5 4 (28.57%) Redux
5 4 (28.57%) Symfony
5 4 (28.57%) Yii
6 3 (21.43%) LESS
6 3 (21.43%) Twitter Bootstrap
7 2 (14.29%) Ember.js
7 2 (14.29%) Mustache
Miscellaneous
1 5 (35.71%) User Experience
2 3 (21.43%) Algorithms
2 3 (21.43%) Mobile App
3 2 (14.29%) Linux Command Line
Operating Systems
1 2 (14.29%) Android
1 2 (14.29%) Apple iOS
1 2 (14.29%) Linux
Processes & Methodologies
1 13 (92.86%) SMACSS
2 12 (85.71%) BEM - Block Element Modifier
3 7 (50.00%) Continuous Integration
3 7 (50.00%) TDD
3 7 (50.00%) Web Development
4 6 (42.86%) Agile Software Development
4 6 (42.86%) Unit Testing
5 4 (28.57%) Automated Testing
5 4 (28.57%) Customer Engagement
5 4 (28.57%) Kanban
5 4 (28.57%) Mobile First
5 4 (28.57%) Software Engineering
5 4 (28.57%) Web Design
6 3 (21.43%) Build Automation
6 3 (21.43%) Front End Development
6 3 (21.43%) Machine Learning
6 3 (21.43%) OO
6 3 (21.43%) Workflow
7 2 (14.29%) E-Commerce
7 2 (14.29%) SEO
Programming Languages
1 11 (78.57%) JavaScript
2 6 (42.86%) PHP
3 5 (35.71%) ES6
4 2 (14.29%) Clojure
4 2 (14.29%) Java
4 2 (14.29%) PHP 5
4 2 (14.29%) Ruby
5 1 (7.14%) Python
5 1 (7.14%) Scala
Quality Assurance & Compliance
1 2 (14.29%) QA
System Software
1 2 (14.29%) VMware Infrastructure
1 2 (14.29%) Xen
Systems Management
1 2 (14.29%) Opscode Chef
1 2 (14.29%) Puppet
1 2 (14.29%) Salt
Vendors
1 4 (28.57%) Adobe
1 4 (28.57%) Zend
2 2 (14.29%) Facebook
2 2 (14.29%) Google
2 2 (14.29%) Rackspace
2 2 (14.29%) Twitter
2 2 (14.29%) VMware