Period
to 22 September 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 22 September 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
22 Sep 2018
Same period 2017 Same period 2016
Rank 678 570 624
Rank change year-on-year -108 +54 +98
Contract jobs citing D3.js 182 283 253
As % of all contract IT jobs advertised in England 0.20% 0.31% 0.25%
As % of the Libraries, Frameworks & Software Standards category 0.55% 0.96% 0.84%
Number of daily rates quoted 132 212 207
England median daily rate £488 £500 £450
Median daily rate % change year-on-year -2.50% +11.11% -
10th Percentile £363 £358 £313
90th Percentile £725 £625 £580
UK median daily rate £475 £500 £450
% change year-on-year -5.00% +11.11% -
Number of hourly rates quoted 1 2 0
England median hourly rate £37.50 £51.80 -
Median hourly rate % change year-on-year -27.61% - -
UK median hourly rate £37.50 £51.80 -
% change year-on-year -27.61% - -

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 33,035 29,555 30,249
As % of all contract IT jobs advertised in England 35.47% 32.57% 30.38%
Number of daily rates quoted 23,523 20,687 21,309
England median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +6.25%
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% +6.25%
Number of hourly rates quoted 321 378 361
England median hourly rate £42.00 £40.00 £36.50
Median hourly rate % change year-on-year +5.00% +9.59% -1.35%
10th Percentile £15.24 £16.68 £13.50
90th Percentile £60.00 £53.75 £50.00
UK median hourly rate £41.69 £40.00 £36.50
% change year-on-year +4.22% +9.59% -1.46%

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 22 September 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 22 September 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 -132 108 £500 -4.76% 28
South East +19 43 £438 -2.78% 10
South West +4 26 £375 +3.45% 6
East of England -5 4 £400 +17.65% 4
North West -19 1 £450 - 5
North of England -25 1 £450 +20.00% 6
D3.js
UK

For the 6 months to 22 September 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.

1 117 (64.29%) JavaScript
2 109 (59.89%) CSS
3 106 (58.24%) HTML
4 96 (52.75%) AngularJS
5 82 (45.05%) Visualisation
6 78 (42.86%) React
7 76 (41.76%) Agile Software Development
8 71 (39.01%) Node.js
9 69 (37.91%) Web Development
10 65 (35.71%) Redux
11 61 (33.52%) Analytics
12 55 (30.22%) Data Visualisation
13 54 (29.67%) TypeScript
14 50 (27.47%) Front End Development
15 47 (25.82%) Finance
16 46 (25.27%) Git (software)
17 45 (24.73%) Machine Learning
17 45 (24.73%) User Experience
18 39 (21.43%) Data Science
18 39 (21.43%) HTML5
19 37 (20.33%) Test Automation
20 36 (19.78%) TDD
21 32 (17.58%) Python
21 32 (17.58%) Open Source
22 31 (17.03%) SQL Server
22 31 (17.03%) Scrum
23 30 (16.48%) Selenium
23 30 (16.48%) CSS3
24 28 (15.38%) Highcharts JS
24 28 (15.38%) Analytical Skills

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 (8.79%) Elasticsearch
2 10 (5.49%) Apache Spark
3 9 (4.95%) Jupyter
4 5 (2.75%) Apache Solr
5 2 (1.10%) CMS
5 2 (1.10%) Confluence
5 2 (1.10%) SAS
5 2 (1.10%) SharePoint
6 1 (0.55%) Apache
6 1 (0.55%) Predix
Applications
1 8 (4.40%) Photoshop
2 1 (0.55%) Chatbot
2 1 (0.55%) Microsoft Excel
Cloud Services
1 23 (12.64%) npm
2 22 (12.09%) Amazon AWS
3 16 (8.79%) Microsoft Azure
4 14 (7.69%) Serverless
5 13 (7.14%) NuGet
6 7 (3.85%) Azure Functions
6 7 (3.85%) Google Cloud Platform
7 4 (2.20%) AWS Lambda
8 1 (0.55%) Amazon EC2
8 1 (0.55%) Amazon EMR
8 1 (0.55%) Amazon S3
8 1 (0.55%) Google App Engine
8 1 (0.55%) SaaS
Communications & Networking
1 17 (9.34%) HTTP
2 4 (2.20%) SNA
3 3 (1.65%) Internet
Database & Business Intelligence
1 31 (17.03%) SQL Server
2 22 (12.09%) MongoDB
3 17 (9.34%) NoSQL
4 14 (7.69%) Big Data
5 12 (6.59%) Data Mining
6 10 (5.49%) Amazon DynamoDB
7 7 (3.85%) MySQL
7 7 (3.85%) PostgreSQL
7 7 (3.85%) Relational Database
7 7 (3.85%) SQL Server 2012
8 6 (3.30%) Hadoop
9 4 (2.20%) Apache Cassandra
9 4 (2.20%) Neo4j
9 4 (2.20%) SQL Server 2016
10 3 (1.65%) Apache Hive
10 3 (1.65%) Redis
11 2 (1.10%) CouchDB
11 2 (1.10%) Data Warehouse
11 2 (1.10%) QlikView
11 2 (1.10%) Sqoop
Development Applications
1 46 (25.27%) Git (software)
2 30 (16.48%) Selenium
3 25 (13.74%) webpack
4 14 (7.69%) Jasmine
4 14 (7.69%) Karma Test Runner
5 13 (7.14%) Moq
5 13 (7.14%) PhantomJS
5 13 (7.14%) SpecFlow
5 13 (7.14%) XMLUnit
5 13 (7.14%) xUnit.net
6 12 (6.59%) Jenkins
7 10 (5.49%) gulp
8 7 (3.85%) Maven
8 7 (3.85%) Mocha
8 7 (3.85%) TeamCity
9 6 (3.30%) Protractor
9 6 (3.30%) Subversion
10 5 (2.75%) Grunt
10 5 (2.75%) Octopus Deploy
11 4 (2.20%) WebStorm
General
1 47 (25.82%) Finance
2 17 (9.34%) Banking
3 11 (6.04%) Games
4 9 (4.95%) Investment Banking
5 7 (3.85%) Front Office
5 7 (3.85%) Publishing
6 6 (3.30%) Telecoms
7 5 (2.75%) Financial Institution
7 5 (2.75%) Prime Brokerage
8 4 (2.20%) Retail
9 2 (1.10%) Electronics
9 2 (1.10%) Law
10 1 (0.55%) Advertising
10 1 (0.55%) Manufacturing
Job Titles
1 145 (79.67%) Developer
2 50 (27.47%) Front End Developer (Client-Side Developer)
3 40 (21.98%) React Developer
4 35 (19.23%) JavaScript Developer
5 26 (14.29%) Web Developer
6 20 (10.99%) Data Visualisation Developer
7 19 (10.44%) Angular Developer
8 17 (9.34%) Full Stack Developer
9 15 (8.24%) Lead Developer
10 13 (7.14%) Agile Developer
10 13 (7.14%) Designer
11 12 (6.59%) Front End Web Developer (Client-Side Developer)
11 12 (6.59%) HTML Developer
11 12 (6.59%) UI Designer
11 12 (6.59%) UI/UX Designer
11 12 (6.59%) UX Designer
12 11 (6.04%) Data Scientist
13 10 (5.49%) HTML CSS Developer
14 9 (4.95%) UI Developer
15 8 (4.40%) Photoshop Designer
Libraries, Frameworks & Software Standards
1 109 (59.89%) CSS
2 106 (58.24%) HTML
3 96 (52.75%) AngularJS
4 78 (42.86%) React
5 71 (39.01%) Node.js
6 65 (35.71%) Redux
7 39 (21.43%) HTML5
8 30 (16.48%) CSS3
9 28 (15.38%) Highcharts JS
10 26 (14.29%) .NET
10 26 (14.29%) REST
11 24 (13.19%) ASP.NET Web API
11 24 (13.19%) jQuery
11 24 (13.19%) LESS
12 22 (12.09%) JSON
12 22 (12.09%) RxJS
13 21 (11.54%) Sass
14 19 (10.44%) GraphQL
14 19 (10.44%) Vue.js
15 18 (9.89%) Angular 2
Miscellaneous
1 45 (24.73%) User Experience
2 28 (15.38%) Analytical Skills
3 23 (12.64%) Fintech
4 19 (10.44%) Algorithms
5 12 (6.59%) Self-Motivation
6 9 (4.95%) Fixed Income
6 9 (4.95%) Greenfield Project
6 9 (4.95%) Hedge funds
7 6 (3.30%) Computer Science
8 5 (2.75%) Derivative
8 5 (2.75%) OTC Derivatives
8 5 (2.75%) Social Network
9 4 (2.20%) Equities
9 4 (2.20%) Management Information System
10 3 (1.65%) Digital Media
10 3 (1.65%) Mobile App
10 3 (1.65%) Virtual Team
11 2 (1.10%) Internet of Things
12 1 (0.55%) Data Structures
12 1 (0.55%) Enterprise Software
Operating Systems
1 8 (4.40%) Linux
2 4 (2.20%) Ubuntu
3 2 (1.10%) Android
3 2 (1.10%) Apple iOS
3 2 (1.10%) CentOS
3 2 (1.10%) Windows
4 1 (0.55%) Unix
Processes & Methodologies
1 82 (45.05%) Visualisation
2 76 (41.76%) Agile Software Development
3 69 (37.91%) Web Development
4 61 (33.52%) Analytics
5 55 (30.22%) Data Visualisation
6 50 (27.47%) Front End Development
7 45 (24.73%) Machine Learning
8 39 (21.43%) Data Science
9 37 (20.33%) Test Automation
10 36 (19.78%) TDD
11 32 (17.58%) Open Source
12 31 (17.03%) Scrum
13 26 (14.29%) Problem-Solving
14 25 (13.74%) MVC
14 25 (13.74%) Software Engineering
15 22 (12.09%) Artificial Intelligence
16 20 (10.99%) Data Analytics
17 18 (9.89%) Data Analysis
17 18 (9.89%) DevOps
18 17 (9.34%) Data Modelling
Programming Languages
1 117 (64.29%) JavaScript
2 54 (29.67%) TypeScript
3 32 (17.58%) Python
4 27 (14.84%) C#
4 27 (14.84%) SQL
5 16 (8.79%) ES6
5 16 (8.79%) Java
6 14 (7.69%) R
7 6 (3.30%) Scala
8 5 (2.75%) C++
9 4 (2.20%) ES7
10 3 (1.65%) C
11 1 (0.55%) Data Analysis Expressions (DAX)
11 1 (0.55%) PHP
11 1 (0.55%) PowerShell
11 1 (0.55%) Ruby
11 1 (0.55%) VB
11 1 (0.55%) VBA
Qualifications
1 10 (5.49%) Degree
2 4 (2.20%) SC Cleared
2 4 (2.20%) Security Cleared
3 2 (1.10%) Computer Science Degree
Quality Assurance & Compliance
1 7 (3.85%) QA
2 1 (0.55%) Data Quality
2 1 (0.55%) ISO 9001
2 1 (0.55%) ISO/IEC 27001
2 1 (0.55%) SLA
System Software
1 13 (7.14%) Docker
2 2 (1.10%) Apache Flume
3 1 (0.55%) HDFS
Systems Management
1 12 (6.59%) Kubernetes
2 5 (2.75%) Puppet
3 2 (1.10%) Ansible
3 2 (1.10%) Opscode Chef
4 1 (0.55%) Control-M
4 1 (0.55%) Hadoop YARN
Vendors
1 14 (7.69%) Tableau
2 13 (7.14%) Oracle
3 10 (5.49%) Google
4 6 (3.30%) Microsoft
5 3 (1.65%) Rackspace
5 3 (1.65%) Splunk
6 2 (1.10%) Adobe
6 2 (1.10%) Omniture
6 2 (1.10%) Palantir
7 1 (0.55%) Atlassian
7 1 (0.55%) Cognos
7 1 (0.55%) Mapbox
7 1 (0.55%) MicroStrategy
7 1 (0.55%) Sybase