Period
to 9 December 2018

The following table provides summary statistics for contract job vacancies advertised in England 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 6 months to 9 December 2018 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.

Data-Driven Documents (D3)
UK > England
6 months to
9 Dec 2018
Same period 2017 Same period 2016
Rank 671 636 584
Rank change year-on-year -35 -52 +118
Contract jobs citing D3.js 191 217 287
As % of all contract IT jobs advertised in England 0.20% 0.23% 0.30%
As % of the Libraries, Frameworks & Software Standards category 0.57% 0.71% 0.96%
Number of daily rates quoted 144 162 230
England median daily rate £500 £510 £460
Median daily rate % change year-on-year -1.96% +10.87% +2.22%
10th Percentile £363 £356 £319
90th Percentile £600 £637 £590
UK median daily rate £500 £500 £450
% change year-on-year - +11.11% -
Number of hourly rates quoted 1 3 0
England median hourly rate £37.50 £48.00 -
Median hourly rate % change year-on-year -21.88% - -
UK median hourly rate £37.50 £48.00 -
% change year-on-year -21.88% - -

D3.js is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
England
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 33,555 30,711 30,000
As % of all contract IT jobs advertised in England 35.14% 32.57% 31.19%
Number of daily rates quoted 23,959 21,877 20,858
England median daily rate £475 £468 £425
Median daily rate % change year-on-year +1.60% +10.00% +2.41%
10th Percentile £325 £313 £300
90th Percentile £638 £625 £588
UK median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +3.03%
Number of hourly rates quoted 282 354 348
England median hourly rate £41.50 £40.00 £39.10
Median hourly rate % change year-on-year +3.75% +2.30% +4.27%
10th Percentile £17.50 £18.15 £14.87
90th Percentile £57.50 £52.35 £50.00
UK median hourly rate £41.50 £40.00 £40.00
% change year-on-year +3.75% - +6.67%

D3.js
Job Vacancy Trend in England

Job postings citing D3.js as a percentage of all IT jobs advertised in England.

Job vacancy trend for D3.js in England

D3.js
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for D3.js in England

D3.js
Contractor Daily Rate Histogram in England

The daily rate distribution of IT jobs citing D3.js in England over the 6 months to 9 December 2018.

Contractor daily rate histogram for D3.js in England

D3.js
Contractor Hourly Rate Trend in England

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing D3.js in England.

Contractor hourly rate trend for D3.js in England

D3.js
Contract Job Locations in England

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 England region over the 6 months to 9 December 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London -26 117 £500 -4.76% 33
South East +3 41 £485 +7.78% 12
South West -22 24 £375 - 4
East of England - 5 £445 - 10
North of England -11 3 £500 +33.33% 3
North West -15 3 £500 - 3
Midlands -30 1 £365 -4.26% 2
West Midlands -31 1 £365 -2.67% 1
D3.js
UK

For the 6 months to 9 December 2018, IT contractor jobs citing D3.js also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the England region with a requirement for D3.js.

1 124 (64.92%) JavaScript
2 106 (55.50%) HTML
2 106 (55.50%) CSS
3 102 (53.40%) AngularJS
4 100 (52.36%) Visualisation
5 90 (47.12%) React
6 80 (41.88%) Node.js
7 76 (39.79%) Agile Software Development
8 67 (35.08%) Data Visualisation
9 64 (33.51%) Redux
10 59 (30.89%) Git (software)
11 58 (30.37%) TypeScript
12 56 (29.32%) Web Development
13 52 (27.23%) Finance
14 49 (25.65%) Scrum
14 49 (25.65%) Analytics
15 45 (23.56%) Analytical Skills
15 45 (23.56%) HTML5
16 43 (22.51%) SQL Server
16 43 (22.51%) User Experience
16 43 (22.51%) REST
17 42 (21.99%) Front End Development
18 41 (21.47%) Machine Learning
18 41 (21.47%) TDD
19 40 (20.94%) Java
20 39 (20.42%) SQL
21 37 (19.37%) CSS3
21 37 (19.37%) JSON
22 35 (18.32%) Test Automation
22 35 (18.32%) Twitter Bootstrap

D3.js
Co-occurring IT Skills in England 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 16 (8.38%) Elasticsearch
2 12 (6.28%) Apache Spark
3 7 (3.66%) nginx
3 7 (3.66%) SharePoint
4 5 (2.62%) Apache Solr
4 5 (2.62%) Jupyter
5 4 (2.09%) Apache
6 3 (1.57%) CMS
6 3 (1.57%) SharePoint 2013
7 2 (1.05%) Confluence
7 2 (1.05%) K2 blackpearl
7 2 (1.05%) Liferay
7 2 (1.05%) SAS
Applications
1 18 (9.42%) Microsoft Excel
2 10 (5.24%) Photoshop
3 3 (1.57%) Microsoft PowerPoint
4 2 (1.05%) SPSS
5 1 (0.52%) Adobe Illustrator
5 1 (0.52%) Chatbot
5 1 (0.52%) InVision
Business Applications
1 1 (0.52%) Infor M3
Cloud Services
1 30 (15.71%) Amazon AWS
2 25 (13.09%) npm
3 16 (8.38%) Microsoft Azure
4 14 (7.33%) OpenShift
5 13 (6.81%) NuGet
6 8 (4.19%) Serverless
7 7 (3.66%) Amazon EC2
7 7 (3.66%) Google Cloud Platform
7 7 (3.66%) SaaS
8 6 (3.14%) Yarn
9 2 (1.05%) Azure Active Directory
9 2 (1.05%) Azure Data Factory
9 2 (1.05%) Azure Machine Learning
9 2 (1.05%) IaaS
9 2 (1.05%) Office 365
9 2 (1.05%) PaaS
10 1 (0.52%) Amazon EMR
10 1 (0.52%) Amazon S3
10 1 (0.52%) Google App Engine
Communications & Networking
1 16 (8.38%) HTTP
2 3 (1.57%) Internet
2 3 (1.57%) SNA
3 2 (1.05%) Firewall
4 1 (0.52%) AMQP
Database & Business Intelligence
1 43 (22.51%) SQL Server
2 27 (14.14%) MongoDB
3 24 (12.57%) Relational Database
4 16 (8.38%) NoSQL
5 15 (7.85%) MySQL
6 13 (6.81%) Big Data
7 10 (5.24%) Hadoop
8 7 (3.66%) Amazon DynamoDB
8 7 (3.66%) Apache Hive
8 7 (3.66%) Power BI
9 6 (3.14%) Apache Cassandra
9 6 (3.14%) Redis
10 5 (2.62%) Data Lake
10 5 (2.62%) Impala
10 5 (2.62%) Neo4j
10 5 (2.62%) Spark SQL
10 5 (2.62%) SQL Server 2012
11 4 (2.09%) Data Mining
11 4 (2.09%) PostgreSQL
12 3 (1.57%) QlikView
Development Applications
1 59 (30.89%) Git (software)
2 34 (17.80%) Selenium
3 27 (14.14%) Jenkins
4 23 (12.04%) webpack
5 14 (7.33%) PhantomJS
6 13 (6.81%) Karma Test Runner
6 13 (6.81%) Moq
6 13 (6.81%) SpecFlow
6 13 (6.81%) XMLUnit
6 13 (6.81%) xUnit.net
7 11 (5.76%) Jasmine
7 11 (5.76%) Mocha
8 10 (5.24%) gulp
9 7 (3.66%) Babel
10 6 (3.14%) Balsamiq Mockups
10 6 (3.14%) Maven
11 5 (2.62%) Axure RP
11 5 (2.62%) Cucumber
11 5 (2.62%) Grunt
11 5 (2.62%) TeamCity
General
1 52 (27.23%) Finance
2 9 (4.71%) Banking
2 9 (4.71%) Front Office
3 7 (3.66%) Publishing
4 4 (2.09%) Games
4 4 (2.09%) Telecoms
5 3 (1.57%) Advertising
5 3 (1.57%) Financial Institution
5 3 (1.57%) Retail
6 2 (1.05%) Electronics
6 2 (1.05%) Investment Banking
6 2 (1.05%) Prime Brokerage
7 1 (0.52%) Avionics
7 1 (0.52%) Manufacturing
7 1 (0.52%) Multimedia
Job Titles
1 147 (76.96%) Developer
2 43 (22.51%) JavaScript Developer
3 39 (20.42%) React Developer
4 37 (19.37%) Front End Developer (Client-Side Developer)
5 34 (17.80%) Full Stack Developer
6 22 (11.52%) Angular Developer
7 19 (9.95%) Data Visualisation Developer
8 17 (8.90%) Designer
8 17 (8.90%) Lead Developer
9 15 (7.85%) UX Designer
10 14 (7.33%) Agile Developer
10 14 (7.33%) Node.js Developer
10 14 (7.33%) UI Designer
11 13 (6.81%) UI/UX Designer
11 13 (6.81%) Web Developer
12 9 (4.71%) .NET Developer
12 9 (4.71%) Photoshop Designer
13 8 (4.19%) HTML Developer
13 8 (4.19%) Senior Developer
14 7 (3.66%) Software Engineer
Libraries, Frameworks & Software Standards
1 106 (55.50%) CSS
1 106 (55.50%) HTML
2 102 (53.40%) AngularJS
3 90 (47.12%) React
4 80 (41.88%) Node.js
5 64 (33.51%) Redux
6 45 (23.56%) HTML5
7 43 (22.51%) REST
8 37 (19.37%) CSS3
8 37 (19.37%) JSON
9 35 (18.32%) Twitter Bootstrap
9 35 (18.32%) Vue.js
10 34 (17.80%) jQuery
11 30 (15.71%) .NET
11 30 (15.71%) Highcharts JS
12 25 (13.09%) Sass
13 20 (10.47%) ASP.NET Web API
13 20 (10.47%) GraphQL
14 18 (9.42%) .NET Framework
15 16 (8.38%) SOAP
Miscellaneous
1 45 (23.56%) Analytical Skills
2 43 (22.51%) User Experience
3 26 (13.61%) Fintech
4 19 (9.95%) Algorithms
5 16 (8.38%) Self-Motivation
6 14 (7.33%) Clustering
6 14 (7.33%) Fat Client
6 14 (7.33%) Thin Client
7 11 (5.76%) Greenfield Project
7 11 (5.76%) Hedge funds
8 9 (4.71%) Virtual Team
9 6 (3.14%) Fixed Income
9 6 (3.14%) Mobile App
10 5 (2.62%) Digital Media
11 3 (1.57%) Analytical Mindset
11 3 (1.57%) Equities
11 3 (1.57%) FMCG
11 3 (1.57%) Social Network
12 2 (1.05%) Derivative
12 2 (1.05%) Management Information System
Operating Systems
1 12 (6.28%) Linux
2 6 (3.14%) CentOS
3 4 (2.09%) Ubuntu
4 3 (1.57%) Android
4 3 (1.57%) Apple iOS
4 3 (1.57%) Unix
Processes & Methodologies
1 100 (52.36%) Visualisation
2 76 (39.79%) Agile Software Development
3 67 (35.08%) Data Visualisation
4 56 (29.32%) Web Development
5 49 (25.65%) Analytics
5 49 (25.65%) Scrum
6 42 (21.99%) Front End Development
7 41 (21.47%) Machine Learning
7 41 (21.47%) TDD
8 35 (18.32%) Test Automation
9 34 (17.80%) DevOps
10 33 (17.28%) Data Science
11 30 (15.71%) Continuous Integration
12 29 (15.18%) MVC
13 24 (12.57%) Problem-Solving
14 23 (12.04%) Software Engineering
15 20 (10.47%) Artificial Intelligence
16 19 (9.95%) Data Analytics
17 18 (9.42%) OO
18 17 (8.90%) Dependency Injection
Programming Languages
1 124 (64.92%) JavaScript
2 58 (30.37%) TypeScript
3 40 (20.94%) Java
4 39 (20.42%) SQL
5 34 (17.80%) Python
6 28 (14.66%) C#
7 17 (8.90%) ES6
8 12 (6.28%) R
9 11 (5.76%) PHP
10 9 (4.71%) Scala
11 5 (2.62%) C++
11 5 (2.62%) ES7
12 3 (1.57%) C
13 2 (1.05%) Bash Shell
13 2 (1.05%) Go
13 2 (1.05%) Perl
13 2 (1.05%) PowerShell
13 2 (1.05%) Ruby
13 2 (1.05%) VBA
14 1 (0.52%) Apple Swift
Qualifications
1 20 (10.47%) Degree
2 14 (7.33%) Numerate Degree
3 2 (1.05%) CEH
3 2 (1.05%) PMI Certification
4 1 (0.52%) Computer Science Degree
4 1 (0.52%) PhD
4 1 (0.52%) SC Cleared
4 1 (0.52%) Security Cleared
Quality Assurance & Compliance
1 5 (2.62%) QA
2 1 (0.52%) ISO 9001
2 1 (0.52%) ISO/IEC 27001
2 1 (0.52%) PMO
2 1 (0.52%) SLA
System Software
1 21 (10.99%) Docker
2 2 (1.05%) Active Directory
2 2 (1.05%) Apache Flume
3 1 (0.52%) HDFS
Systems Management
1 17 (8.90%) Ansible
1 17 (8.90%) Kubernetes
2 4 (2.09%) Opscode Chef
2 4 (2.09%) Puppet
3 3 (1.57%) Control-M
3 3 (1.57%) ITRS Geneos
4 2 (1.05%) Salt
4 2 (1.05%) Terraform
5 1 (0.52%) Hadoop YARN
Vendors
1 22 (11.52%) Microsoft
2 17 (8.90%) Oracle
3 11 (5.76%) Tableau
4 8 (4.19%) Google
5 5 (2.62%) Cloudera
5 5 (2.62%) Rackspace
6 3 (1.57%) Adobe
6 3 (1.57%) Splunk
7 2 (1.05%) Alteryx
7 2 (1.05%) Cisco
7 2 (1.05%) Nintex
7 2 (1.05%) Omniture
7 2 (1.05%) Palantir
8 1 (0.52%) Atlassian
8 1 (0.52%) Coverity
8 1 (0.52%) Hitachi
8 1 (0.52%) Salesforce.com
8 1 (0.52%) Sybase