The following table provides summary statistics for contract job vacancies with a requirement for D3.js skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited D3.js over the 3 months to 22 March 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

3 months to
22 Mar 2017
Same period 2016 Same period 2015
Data-Driven Documents (D3)
UK
Rank 463 509 510
Rank change year-on-year +46 +1  
Contract jobs citing D3.js 123 121 102
As % of all contract IT jobs advertised in the UK 0.28% 0.23% 0.20%
As % of the Libraries, Frameworks & Software Standards category 0.88% 0.82% 0.74%
Number of daily rates quoted 87 63 73
Median daily rate £475 £475 £450
Median daily rate % change year-on-year - +5.55%  
90% offered a daily rate of more than £350 £347 £325
10% offered a daily rate of more than £588 £550 £600
UK excluding London median daily rate £388 £500 £325
% change year-on-year -22.50% +53.84%  
Number of hourly rates quoted 1 2 0
Median hourly rate £42.50 £32.50 -
Median hourly rate % change year-on-year +30.76% -  
UK excluding London median hourly rate £42.50 £32.50 -
% change year-on-year +30.76% -  

D3.js 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 contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
UK
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 13899 14787 13862
As % of all contract IT job vacancies advertised in the UK 31.29% 28.00% 26.54%
Number of daily rates quoted 9628 10237 8968
Median daily rate £425 £400 £388
Median daily rate % change year-on-year +6.25% +3.22%  
90% offered a daily rate of more than £300 £300 £278
10% offered a daily rate of more than £570 £550 £550
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 174 227 188
Median hourly rate £42.50 £38.00 £35.00
Median hourly rate % change year-on-year +11.84% +8.57%  
90% offered a hourly rate of more than £17.01 £15.00 £20.00
10% offered a hourly rate of more than £55.00 £57.75 £47.00
UK excluding London median hourly rate £40.00 £38.00 £36.00
% change year-on-year +5.26% +5.55%  

D3.js
Job Vacancy Trend

The job posting trend of jobs advertised citing D3.js as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for D3.js in the UK

D3.js
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing D3.js.

Contractor daily rate trend for D3.js in the UK

D3.js
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing D3.js over the 3 months to 22 March 2017.

Contractor daily rate histogram for D3.js in the UK

D3.js
Top 26 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing D3.js within the UK over the 3 months to 22 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +51 123 £475 -1.29% 36
London +49 102 £488 +5.40% 21
City of London +17 24 £475 +18.60% 7
South East +21 8 - - 9
Milton Keynes - 6 - -
Buckinghamshire - 6 - - 1
Cambridgeshire +13 5 £375 +10.29%
East of England -3 5 £375 +12.78% 1
Cambridge - 5 £375 -
South West 0 3 £400 -20.00% 1
West Midlands +18 2 - -
Yorkshire 0 2 £375 -
Devon - 2 £400 -
Staffordshire - 2 - -
Exeter - 2 £400 -
Burton-upon-Trent - 2 - -
West Yorkshire +19 1 £375 -
Leeds +8 1 £375 -
Bristol -2 1 - -
East Midlands - 1 - - 1
Derbyshire - 1 - -
Middlesex - 1 - -
Surrey - 1 - - 3
South Yorkshire - 1 - -
Staines - 1 - - 1
Sheffield - 1 - -

D3.js
Top 30 Related IT Skills

For the 6 months to 22 March 2017, IT contractor jobs citing D3.js also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for D3.js.

1 189 (70.52%) JavaScript
2 153 (57.09%) AngularJS
3 142 (52.99%) HTML
4 136 (50.75%) CSS
5 123 (45.90%) Visualisation
6 118 (44.03%) Agile Software Development
7 111 (41.42%) HTML5
8 92 (34.33%) Front End Development
9 82 (30.60%) CSS3
10 72 (26.87%) Finance
11 70 (26.12%) Data Visualisation
11 70 (26.12%) Node.js
11 70 (26.12%) React
12 65 (24.25%) jQuery
13 58 (21.64%) Java
14 56 (20.90%) Scrum
15 55 (20.52%) Git (software)
16 51 (19.03%) TDD
17 49 (18.28%) Sass
17 49 (18.28%) SQL
18 46 (17.16%) Banking
18 46 (17.16%) Analytics
19 44 (16.42%) Big Data
20 39 (14.55%) Python
21 38 (14.18%) ES6
22 37 (13.81%) User Experience
23 35 (13.06%) Business Intelligence
23 35 (13.06%) RESTful
23 35 (13.06%) JIRA
24 34 (12.69%) Google

D3.js
Top Related IT Skills 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 22 (8.21%) Apache Spark
2 12 (4.48%) Elasticsearch
3 11 (4.10%) Confluence
4 10 (3.73%) Apache Pig
5 5 (1.87%) SharePoint
6 4 (1.49%) Oracle Spatial
7 3 (1.12%) Apache Solr
7 3 (1.12%) Cloud Foundry
8 2 (0.75%) Drupal
8 2 (0.75%) WebLogic
9 1 (0.37%) Apache
9 1 (0.37%) CMS
9 1 (0.37%) Predix
9 1 (0.37%) SAS
9 1 (0.37%) Tomcat
9 1 (0.37%) WebSphere
9 1 (0.37%) WordPress
Applications
1 7 (2.61%) MS Excel
2 4 (1.49%) Weka
3 3 (1.12%) OmniGraffle
3 3 (1.12%) Spreadsheet
4 2 (0.75%) Adobe Creative Suite
4 2 (0.75%) Adobe Illustrator
4 2 (0.75%) InDesign
4 2 (0.75%) Photoshop
5 1 (0.37%) LaTeX
5 1 (0.37%) SPSS
5 1 (0.37%) Stata
Cloud Services
1 15 (5.60%) Amazon AWS
2 9 (3.36%) GitHub
3 4 (1.49%) Amazon EC2
3 4 (1.49%) Google Cloud Platform
3 4 (1.49%) Microsoft Azure
4 3 (1.12%) Amazon S3
5 2 (0.75%) Adobe Creative Cloud
5 2 (0.75%) Google Analytics
5 2 (0.75%) Slack
6 1 (0.37%) Flurry Analytics
Communications & Networking
1 7 (2.61%) Network Security
2 4 (1.49%) HTTP
3 3 (1.12%) SNA
4 2 (0.75%) DSL
4 2 (0.75%) Peer-to-Peer Networking
4 2 (0.75%) Skype
5 1 (0.37%) Intranet
5 1 (0.37%) SSH
Database & Business Intelligence
1 44 (16.42%) Big Data
2 27 (10.07%) Hadoop
3 25 (9.33%) QlikView
4 19 (7.09%) Relational Database
5 18 (6.72%) SQL Server
6 17 (6.34%) NoSQL
7 16 (5.97%) Power BI
8 13 (4.85%) MongoDB
9 12 (4.48%) Apache Cassandra
10 11 (4.10%) SQL Server Reporting Services
11 10 (3.73%) Apache Hive
11 10 (3.73%) HBase
11 10 (3.73%) Microsoft Power View
12 6 (2.24%) Oracle Database
12 6 (2.24%) PowerPivot
12 6 (2.24%) Spotfire
13 5 (1.87%) BusinessObjects
13 5 (1.87%) Data Mining
13 5 (1.87%) PostgreSQL
13 5 (1.87%) Qlik Sense
Development Applications
1 55 (20.52%) Git (software)
2 35 (13.06%) JIRA
3 34 (12.69%) Jasmine
4 28 (10.45%) Bitbucket
5 25 (9.33%) Grunt
6 23 (8.58%) webpack
7 21 (7.84%) Mocha
8 18 (6.72%) gulp
8 18 (6.72%) Protractor
9 16 (5.97%) Selenium
10 11 (4.10%) Subversion
11 9 (3.36%) Bower
12 8 (2.99%) Karma Test Runner
13 7 (2.61%) Visual Studio
14 6 (2.24%) Maven
15 5 (1.87%) Oracle APEX
15 5 (1.87%) QUnit
16 4 (1.49%) Sonatype Nexus
16 4 (1.49%) TeamCity
17 3 (1.12%) WebDriver
General
1 72 (26.87%) Finance
2 46 (17.16%) Banking
3 27 (10.07%) Investment Banking
4 13 (4.85%) Front Office
5 9 (3.36%) Retail
6 5 (1.87%) Telecoms
7 4 (1.49%) Games
8 3 (1.12%) Legal
9 2 (0.75%) Manufacturing
9 2 (0.75%) Publishing
9 2 (0.75%) Retail Banking
10 1 (0.37%) Financial Institution
10 1 (0.37%) Marketing
10 1 (0.37%) Multimedia
Job Titles
1 199 (74.25%) Developer
2 86 (32.09%) JavaScript Developer
3 80 (29.85%) Front End Developer (Client-Side Developer)
4 50 (18.66%) Angular Developer
5 44 (16.42%) UI Developer
6 26 (9.70%) Senior Developer
7 17 (6.34%) HTML Developer
8 14 (5.22%) Designer
9 13 (4.85%) Applications Developer
9 13 (4.85%) HTML CSS Developer
9 13 (4.85%) Senior JavaScript Developer
10 11 (4.10%) Data Scientist
10 11 (4.10%) Senior UI Developer
11 10 (3.73%) Architect
11 10 (3.73%) Java Developer
11 10 (3.73%) Python Developer
11 10 (3.73%) Web Developer
12 9 (3.36%) Data Engineer
13 8 (2.99%) Consultant
13 8 (2.99%) Full Stack Developer
Libraries, Frameworks & Software Standards
1 153 (57.09%) AngularJS
2 142 (52.99%) HTML
3 136 (50.75%) CSS
4 111 (41.42%) HTML5
5 82 (30.60%) CSS3
6 70 (26.12%) Node.js
6 70 (26.12%) React
7 65 (24.25%) jQuery
8 49 (18.28%) Sass
9 35 (13.06%) RESTful
10 30 (11.19%) Highcharts JS
11 19 (7.09%) JSON
11 19 (7.09%) LESS
11 19 (7.09%) Redux
11 19 (7.09%) Web Services
12 18 (6.72%) Material Design
13 17 (6.34%) WebSockets
14 16 (5.97%) Chai
14 16 (5.97%) Twitter Bootstrap
15 14 (5.22%) REST
Miscellaneous
1 37 (13.81%) User Experience
2 28 (10.45%) Fintech
3 18 (6.72%) Computer Science
4 12 (4.48%) Algorithms
5 7 (2.61%) Client/Server
6 6 (2.24%) Cyberthreat
6 6 (2.24%) Enterprise Software
7 5 (1.87%) Analytical Skills
7 5 (1.87%) Mobile App
8 3 (1.12%) Data Structures
8 3 (1.12%) Derivative
8 3 (1.12%) Foreign Exchange (FX)
8 3 (1.12%) Management Information System
8 3 (1.12%) Reference Data
8 3 (1.12%) Social Media
9 2 (0.75%) Mobile Banking
10 1 (0.37%) Digital Media
10 1 (0.37%) Linked Data
10 1 (0.37%) Online Games
10 1 (0.37%) W3C
Operating Systems
1 11 (4.10%) Linux
2 10 (3.73%) Unix
3 7 (2.61%) Android
4 2 (0.75%) Windows
5 1 (0.37%) Apple iOS
5 1 (0.37%) CentOS
5 1 (0.37%) Mac OS X
5 1 (0.37%) Red Hat Enterprise Linux
Processes & Methodologies
1 123 (45.90%) Visualisation
2 118 (44.03%) Agile Software Development
3 92 (34.33%) Front End Development
4 70 (26.12%) Data Visualisation
5 56 (20.90%) Scrum
6 51 (19.03%) TDD
7 46 (17.16%) Analytics
8 35 (13.06%) Business Intelligence
9 29 (10.82%) Machine Learning
10 21 (7.84%) Mathematics
11 20 (7.46%) Web Development
12 18 (6.72%) OO
12 18 (6.72%) Responsive Web Design
13 16 (5.97%) BDD
13 16 (5.97%) E-Commerce
14 15 (5.60%) Data Analysis
14 15 (5.60%) Mentoring
14 15 (5.60%) Statistics
15 14 (5.22%) Prototyping
15 14 (5.22%) Unit Testing
Programming Languages
1 189 (70.52%) JavaScript
2 58 (21.64%) Java
3 49 (18.28%) SQL
4 39 (14.55%) Python
5 38 (14.18%) ES6
6 28 (10.45%) Scala
7 22 (8.21%) R
8 7 (2.61%) MATLAB
8 7 (2.61%) PL/SQL
9 6 (2.24%) C#
10 5 (1.87%) Apex Code
10 5 (1.87%) T-SQL
10 5 (1.87%) VBA
11 4 (1.49%) Apple Swift
11 4 (1.49%) Objective-C
11 4 (1.49%) Shell Script
12 3 (1.12%) Ruby
13 2 (0.75%) C++
13 2 (0.75%) ECMAScript
13 2 (0.75%) PHP
Qualifications
1 30 (11.19%) Degree
2 5 (1.87%) PhD
3 2 (0.75%) DV Cleared
3 2 (0.75%) Security Cleared
Quality Assurance & Compliance
1 13 (4.85%) QA
System Software
1 6 (2.24%) HDFS
2 5 (1.87%) Apache Flume
3 1 (0.37%) GlusterFS
3 1 (0.37%) Varnish
Systems Management
1 18 (6.72%) Kibana
2 1 (0.37%) Ansible
2 1 (0.37%) Opscode Chef
2 1 (0.37%) Piwik
Vendors
1 34 (12.69%) Google
2 23 (8.58%) Tableau
3 15 (5.60%) Oracle
4 12 (4.48%) Microsoft
5 9 (3.36%) Cadence
6 5 (1.87%) Salesforce.com
7 4 (1.49%) Adobe
8 3 (1.12%) Cognos
9 2 (0.75%) Talend
10 1 (0.37%) Alteryx
10 1 (0.37%) Atlassian
10 1 (0.37%) Avaya
10 1 (0.37%) Genesys
10 1 (0.37%) IBM
10 1 (0.37%) Mapbox
10 1 (0.37%) MicroStrategy
10 1 (0.37%) Red Hat
10 1 (0.37%) Twitter
London
Harrington Starr
Rate: £550 - £650 per day
Posted: 10 hours ago
City, London
Wenham Carter Ltd
Posted: 19 hours ago
London
Wenham Carter
Rate: From £475 to £550 per day TBC
Posted: Yesterday
Newcastle Upon Tyne, Tyne and Wear
Mortimer Spinks
Posted: 2 days ago
Staines, Middlesex
Sopra Steria Recruitment
Rate: £Negotiable/Flexible
Posted: 6 days ago